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Engine Control Module --, 2015 MY

DTC / Description Monitor Strategy Description Malfunction Criteria and Threshold Value Secondary Parameters with Enable Conditions Monitoring Time Length MIL Illum. Component Diagnostic Procedure
P0016 Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A Camshaft Position Sensor Intake angular offset check
  • Permissible deviation < -12° CRK
OR
  • Permissible deviation > 12° CRK
 --- 10 Rev.
  • Multiple
  • 2 DCY
 -- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING -- Check the Camshaft Position (CMP) Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING .
P0030 HO2S Heater Control Circuit Bank 1 Sensor 1 Oxygen Sensor Heater Front Open Circuit
  • Heater voltage 4.70...5.40 V
  • Time after engine start > 5 Sec
  • Heater commanded off
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P0031 HO2S Heater Control Circuit Low Bank 1 Sensor 1 Oxygen Sensor Heater Front Short to Ground
  • Heater voltage 0...3.26 V
  • Time after engine start > 5 Sec
  • Heater commanded off
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P0032 HO2S Heater Control Circuit High Bank 1 Sensor 1 Oxygen Sensor Heater Front Short To Battery Plus
  • Signal current > 5.50 A
  • Time after engine start > 5 Sec
  • Heater commanded on
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P0036 HO2S Heater Control Circuit Bank 1 Sensor 2 Oxygen Sensors Heater rear open circuit
  • Heater voltage 2.34...3.59 V
  • Engine speed > 80 RPM
  • Heater, Commanded off
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING 
P0037 HO2S Heater Control Circuit Low Bank 1 Sensor 2 Oxygen Sensors Heater rear short to ground
  • Heater voltage < 2.34 V
  • Engine speed > 80 RPM
  • Heater, Commanded off
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING 
P0038 HO2S Heater Control Circuit High Bank 1 Sensor 2 Oxygen Sensors Heater rear short to battery plus Heater voltage > 3.59 V
  • Engine speed > 80 RPM
  • Heater, Commanded on
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING 
P0070 Ambient Air Temperature Sensor Circuit "A" COM: Ambient Air Temperature (AAT) Sensor communication with AAT Sensor
  • AAT signal: short to battery / open circuit failure
  • Time after ignition on > 2.0 Sec
 1.0 Sec
  • Continuous
  • 2 DCY
 -- Refer to the appropriate service information
P0071 Ambient Air Temperature Sensor Circuit "A" Range/Performance Ambient Air Temperature cross check
  • Difference between IAT vs. ECT @ start (depending on engine off time) < 24.8° K
  • Difference between IAT @ manifold and AAT @ start (depending on engine off time) > 24.8° K
  • Difference between ECT vs AAT @ start (depending on engine off time) > 24.8° K
  • Engine off time > 6 hours
Blockheater
  • ECT @ start < 2.3° K
minus
  • ECT @ condition: time after engine start 180 Sec
Solar radiation case 1:
  • AAT @ engine start <= 2.3° K
minus
  • AAT @ condition
  • Vehicle speed > 40 km/h
  • For time > 5 Sec
Solar radiation case 2:
  • IAT @ manifold @ start < 2.3° K
minus
  • IAT @ condition:
  • Vehicle speed > 40 km/h
  • For time > 5 Sec
 0 Sec
  • Once/ DCY
  • 2 DCY
 -- Refer to the appropriate service information
P0072 Ambient Air Temperature Sensor Circuit "A" Low COM: Ambient Air Temperature (AAT) Sensor communication with AAT Sensor
  • AAT signal: short to ground failure
  • Time after ignition on > 2.0 Sec
 1.0 Sec
  • Continuous
  • 2 DCY
 -- Refer to the appropriate service information
P0106 Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Range/Performance Manifold Pressure Sensor rationality check low
  • Difference manifold pressure lower threshold model < 0 [kPa]
  • Model range 45...845 [kPa]
   2.5 Sec
  • Multiple
  • 2 DCY
 -- Check the MAP / IAT sensor -G71/G42-. Refer to Intake Air Temperature Sensor -G42- / Manifold Absolute Pressure Sensor -G71-, CHECKING . If there is no fault found with the Charge Air Pressure sensor or wiring, check for any related TSB's. The Altitude sensor is located within the ECM and will require replacement of the ECM if the reading is more than 10% out of range. Refer to the service information for ECM replacement.
Manifold Pressure Sensor rationality check high
  • Difference manifold pressure upper threshold model > 0 [kPa]
  • Model range 640...1, 055 [kPa]
Manifold Pressure Sensor rationality check
  • Difference between BARO sensor signal and MAP sensor at engine start > 7.00 kPa
  • Time after engine start < 25 Sec
  • Engine speed < 330 RPM
Manifold Pressure Sensor adaptation value monitoring
  • offset value manifold pressure for load calculation in driving condition range 2 > 5.50 [kPa]
  • offset value manifold pressure for load calculation in driving condition range 2 < -6.00 kPa
 Driving condition range 1 (omsna):
  • engine speed < 900 [rpm]
  • desired mass air flow 5.00...25.00 [kg/h]
  • delta adaptation value range 1 < 0.10 [kg/h]
  • for time 1.0 [s]
driving condition range 2 (opsra):
  • engine speed > 1400 [rpm]
  • manifold pressure < 49.00 [kPa]
  • delta adaptation value range 2 < 0.30 [kPa]
  • for time 8.0 [s]
driving condition range 3 (opua):
  • desired mass air flow > 40.00 [kg/h]
  • manifold pressure > 59.00 [kPa]
  • delta adaptation value range 3 < 0.30 [kPa]
  • for time 5.0 [s]
general:
  • engine operation in every driving condition >= 2 times diagnosis
  • Diagnosis evap purge system = not active
  • engine speed 500...6, 000 [rpm]
  • manifold pressure > 0.00 kPa
  • Ratio manifold pressure to barometric pressure < 0.85 [-]
P0107 Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Low Manifold Pressure Sensor short to ground
  • Signal voltage < 0.20 V
   1 Sec
  • Continuous
  • 2 DCY
 -- Check the MAP / IAT sensor -G71/G42-. Refer to Intake Air Temperature Sensor -G42- / Manifold Absolute Pressure Sensor -G71-, CHECKING .
P0108 Manifold Absolute Pressure/Barometric Pressure Sensor Circuit High Manifold Absolute Pressure / Barometric Pressure Circuit High
  • Signal voltage > 4.86 V
   1 Sec
  • Continuous
  • 2 DCY
 -- Check the MAP / IAT sensor -G71/G42-. Refer to Intake Air Temperature Sensor -G42- / Manifold Absolute Pressure Sensor -G71-, CHECKING .
P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance Bank 1 Intake Air Temperature cross check
  • Difference between IAT and ECT @ start (depending on engine off time) > 24.8° K
  • Difference between IAT @ manifold and AAT @ start (depending on engine off time) > 24.8° K
  • Difference between AAT and ECT @ start (depending on engine off time) < 24.8° K
  • Engine off time > 6 hours
Blockheater
  • ECT @ engine start < 2.3° K
minus
  • ECT @ condition:
  • Time after engine start 180 Sec
Solar radiation case 1:
  • AAT @ start <= 2.3° K
minus
  • AAT @ condition:
  • Vehicle speed > 40 km/h
  • For time > 5 Sec
Solar radiation case 2:
  • IAT @ manifold @ start <= 2.3° K
minus
  • IAT @ condition:
  • Vehicle speed > 40 km/h
  • For time > 5 Sec
 0 Sec
  • Once/ DCY
  • 2 DCY
 -- Check the MAP / IAT sensor -G71/G42-. Refer to Intake Air Temperature Sensor -G42- / Manifold Absolute Pressure Sensor -G71-, CHECKING .
P0112 Intake Air Temperature Sensor 1 Circuit Low Bank 1 Intake Air Temperature Sensor short to ground
  • IAT > 130° C
 --- 5 Sec
  • Multiple
  • 2 DCY
 -- Check the MAP / IAT sensor -G71/G42-. Refer to Intake Air Temperature Sensor -G42- / Manifold Absolute Pressure Sensor -G71-, CHECKING .
P0113 Intake Air Temperature Sensor 1 Circuit High Bank 1 Intake Air Temperature Sensor short to battery / open circuit
  • IAT < -46° C
 --- 5 Sec
  • Multiple
  • 2 DCY
 -- Check the MAP / IAT sensor -G71/G42-. Refer to Intake Air Temperature Sensor -G42- / Manifold Absolute Pressure Sensor -G71-, CHECKING .
P0116 Engine Coolant Temperature Sensor stuck high / low - no change on signal
  • difference between. max ECT vs. min ECT < 1.5 [K]
  • ECT @ engine start 50...141° C
  • without 75...105° C substitute ECT > -45° C
driving condition H:
  • vehicle speed 50...150 km/h
  • mass air flow (lower threshold) 32.00...92.00 [kg/h]
  • mass air flow (upper threshold) 152.00...352.00 [kg/h]
OR
  • fuel cut off active
  • for time required > 40.0 Sec
  • frequency 1 times
driving condition L:
  • vehicle speed 0...20 km/h
  • mass air flow (lower threshold) 4.00 [kg/h]
  • mass air flow (upper threshold) 24.00...40.00 [kg/h]
  • for time required > 10.0 Sec
  • frequency 3 times
 72 Sec
  • Once / DCY
  • 2 DCY
 -- Check the Engine Coolant Temperature (ECT) Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING .
Stuck in Range
  • ECT @ start >= 75° C
  • ECT @ start <= 105° C
  • Engine off time > 7, 200...28, 800 Sec
 2.0 Sec
P0117 Engine Coolant Temperature Sensor 1 Circuit Low Engine Coolant Temperature Sensor short to ground
  • ECT >140° C
 --- 2 Sec
  • Continuous
  • 2 DCY
 -- Check the Engine Coolant Temperature (ECT) Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING .
P0118 Engine Coolant Temperature Sensor 1 Circuit High Engine Coolant Temperature Sensor short to battery / open circuit
  • ECT < -40° C
 --- 2 Sec
  • Continuous
  • 2 DCY
 -- Check the Engine Coolant Temperature (ECT) Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING .
P0121 Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Throttle Position Sensor 1 rationality check
  • TPS 1 - TPS 2 > 5.10...6.30%
  • Actual TPS 1 calculated value > TPS 2 calculated value
  • TPS 1 calc. value > 9.00%
  • Engine speed > 480 RPM
 0.3 Sec
  • Multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
P0122 Throttle/Pedal Position Sensor/Switch "A" Circuit Low Throttle Position Sensor 1 out of range low
  • Signal voltage < 0.20 V
 --- 0.1 Sec
  • Multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
P0123 Throttle/Pedal Position Sensor/Switch "A" Circuit High Throttle Position Sensor 1 out of range high
  • Signal voltage > 4.81 V
 --- 0.1 Sec
  • Multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
P0130 O2 Sensor Circuit Bank 1 Sensor 1 Oxygen Sensors Front Out of Range
  • O2S ceramic temp. < 640° C
  • Modeled exhaust gas temp > 300° C
  • Fuel cutoff not active
 15 Sec
  • Multiple
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P0131 O2 Sensor Circuit Low Voltage Bank 1 Sensor 1 Oxygen Sensors Front Signal Range Check SHORT TO GROUND:
  • Virtual mass VM < 1.75 V
  • Nemst voltage UN < 1.50 V
  • Adjustment voltage IA or IP < 0.30 V
 --- 5 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P0132 O2 Sensor Circuit High Voltage Bank 1 Sensor 1 Oxygen Sensors Front Signal Range Check SHORT TO BATTERY:
  • Virtual mass VM > 3.25 V
  • Nemst voltage UN > 4.40 V
  • Adjustment voltage IA or IP > 7.00 V
 --- 5 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P0133  O2 Sensor Circuit Slow Response Bank 1 Sensor 1 Oxygen Sensors front response rate monitoring, area ratio and gradient ratio Symmetric Fault:
  • Difference of R2L area ratio vs. L2R area ratio -0.40...0.40
  • Max value of both counters for area ratio R2L and L2R >= 3 times
  • Delay Time:
  • Gradient ratio >= 0.25
  • Lower value of both area ratios R2L and L2R < 0.25
  • Transient Time:
  • Gradient ratio >= 0.25
  • Gradient ratio <= 0.40
  • Lower value of both area ratios R2L and L2R < 0.25
  • OR
  • Lower value of both gradient ratios R2L and L2R < 0.25
ASYMMETRIC FAULT:
  • Difference of R2L area ratio vs. L2R area ratio < -0.40; > 0.40
  • Values of both counters for area ratio R2L and L2R >= 3 times
  • Delay Time:
  • Gradient ratio >= 0.25
  • Lower value of both area ratios R2L and L2R < 0.40
  • Transient Time:
  • Gradient ratio >= 0.25
  • Gradient ratio <= 0.40
  • Lower value of both area ratios R2L and L2R < 0.40
  • OR
  • Lower value of both gradient ratios R2L and L2R < 0.25
  • O2S front - min. operation temperature is reached > 720° C
  • O2S front - time since operation readiness > 20.0 Sec
  • Engine speed, 1520...3000 RPM
  • Engine load, 15...70.01%
  • Gradient of engine load <= 4.99%
  • Exhaust system lag time calculation 0.1...0.3 Sec
  • ECT >= 72° C
  • Catalyst temperature >= 400° C
  • Lambda control set-point prior to diagnostic fuel steps = A/F Ratio stoichiometric
  • Relative fuel amount from wall-applied compensation and evap purge <= 0.70
  • Time since last measurement > 3.0 Sec
  • Gear shifting n.a.
  • EVAP purge not active
  • OR
  • Integrated evap purge mass > 8.0 g
  • 2nd lambda control loop not active
  • Forced lambda oscillation not active
  • AIR not active
  • Tank leakage detection not active
  • Diagnosis evap purge system not active
  • Fuel cut off for any cylinders not active
  • Open circuit pump current ready
ONLY FLEX FUEL SYSTEMS WITHOUT ETHANOL SENSOR:
  • Ethanol concentration adaptation; not active
 33 Sec
  • Once/ DCY
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P0135  O2 Sensor Heater Circuit Bank 1 Sensor 1 Oxygen Sensors Heater front out of range high/ rationality check
  • Heater duty cycle, > 90%
  • O2S ceramic temperature, < 720° C
  • Time after O2S heater on 35 Sec
  • Heater control, Active
  • Modeled exhaust gas temp, > 550° C
  • ECT at start > -10° C
  • Engine shutoff time > 120 Sec
  • During ECM keep alive time after ignition off < 500 Sec
 35 - 70 Sec
  • Multiple
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P0137 O2 Sensor Circuit Low Voltage Bank 1 Sensor 2 Oxygen Sensors rear O2S signal check - circuit continuity
  • Signal voltage, < 0.06 V
  • Time > 3 Sec
  • Difference of sensor voltage with load pulse vs. no load pulse < 0.01 V
 case 1: sensor ready for operation
  • Sensor voltage <= 0.40 [V]
OR
  • Sensor voltage 0.50...1.08 [V]
CASE 2: sensor theoretical ready for operation
  • For time > 15.0 [s]
  • Sensor sufficient heated up if exhaust temperature >= 650° C
  • For time > 10.0 Sec
OR
  • Heater power >= 25.00 %
  • For time > 10.0 Sec
General:
  • engine running
  • dew point exceeded
  • fuel cut off not active
  • catalyst purge not active
 3 Sec
  • Multiple
  • 2 DCY
 -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING .
P0138 O2 Sensor Circuit High Voltage Bank 1 Sensor 2 Oxygen Sensors rear O2S signal check out of range high (short to battery plus)
  • Signal voltage > 1.08 V
  • For time > 5.0 Sec
 case 1: sensor ready for operation
  • Sensor voltage <= 0.40 [V]
OR
  • Sensor voltage 0.50...1.08 [V]
CASE 2: sensor theoretical ready for operation
  • For time > 15.0 [s]
  • Sensor sufficient heated up if exhaust temperature >= 650° C
  • For time > 10.0 Sec
OR
  • Heater power >= 25.00 %
  • For time > 10.0 Sec
General:
  • engine running
  • dew point exceeded
  • Lambda set value > 0.995
 5 s
  • 2 DCY
 -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING .
P013A  O2 Sensor Slow Response - Rich to Lean Bank 1 Sensor 2 Oxygen Sensors Rear Check of Differential Transient Time at Fuel Cut-Off
  • EWMA filtered max differential transient time at fuel cutoff >= 0.5 Sec
  • Number of checks >= 3
  • O2S front out of range ready, no fault
  • O2S rear; ready
  • Engine speed 1120...4000 RPM
  • Exhaust gas mass flow > 12.00 kg/h
  • Modeled exhaust gas temperature fitted position O2S rear >= 350° C
  • Change of exhaust gas mass flow -80.00...80.00 kg/h
  • Time fuel cut off < 90.0 Sec
  • IF
  • Time fuel cut off > 90.0 Sec
  • THEN
  • Disabling till next fuel cut off 5.0 Sec
  • Linear sensor front fitted
  • Deviation between expected and measured lambda value < 7.99
  • Additional Conditions:
  • Time after fuel cut-off at first cylinder >= 2.5 Sec
  • O2S rear voltage before start of measurement > 0.56 V
  • O2S rear target voltage end of measurement <= 0.15 V
  • OR
  • Integrated O2 mass during fuel cut off >= 2, 500...3, 000 mg
  • Time delay 0.2 Sec
  • Engine running
 10 Sec
  • Once/ DCY
  • 1 DCY
 -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING .
P0140 O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2 Oxygen sensor rear O2S signal check- circuit continuity Signal voltage
  • Signal voltage 0.40...0.60 V [V]
  • For time > 3 Sec
  • AND
  • difference of sensor voltage with load pulse and voltage without load pulse (mean value of 3 measurements) >= 2.80 V
OR
  • Internal resistance > 40, 000.00 [Ω]
  • AND
  • Exhaust temperature > 600° C
 Case 1: sensor ready for operation
  • Sensor voltage <= 0.40 V
OR
  • Sensor voltage 0.50...1.08 V
case 2: sensor theoretical ready for operation
  • For time > 15.0 Sec
  • Sensor sufficient heated up if exhaust temperature >= 650° C
  • For time > 10.0 Sec
OR
  • Heater power >= 25.00 %
  • For time > 10.0 Sec
General:
  • Engine running
  • Dew point exceeded
  • Valid Ri-measurements > 10 times
 25 Sec
  • Multiple
  • 2 DCY
 -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING .
P0141  O2 Sensor Heater Circuit Bank 1 Sensor 2 Oxygen Sensors Heater rear out of range
  • Heater resistance > 1, 200 - 32, 400 Ω
  • Modeled exhaust gas temp, 300...680° C
  • engine shut-off-time > 120.0 Sec
  • (during ECM keep alive-time after ignition off) < 500.0 Sec
  • Number of checks = 10
  • Fuel cutoff not active
  • Heater commanded on
 6 Sec
  • Multiple
  • 2 DCY
 -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING .
P0169 Incorrect Fuel Composition ECM: Electronic Throttle Control module function monitoring: injection time
  • fuel quantity incorrect
  • Internal check; failed
  • Comparison with fuel quantity incorrect
  • Correction factor incorrect
  • ABS. Difference between predicted and real air mass > 9.00%
  • Internal engine speed > 1, 200 RPM
 0.5
  • Continuous
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING  Check for contaminated / aged fuel or possible high concentration of alcohol in fuel (above 15%).
P0201 Cylinder 1 Injector "A" Circuit Injection Valve Open Circuit Cylinder 1
  • Signal voltage 4.5...5.5 V
  • Engine speed, > 80 RPM
  • Injection valve switched off
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N30-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0202 Cylinder 2 Injector "A" Circuit Injection Valve Open Circuit Cylinder 2
  • Signal voltage 4.5...5.5 V
  • Engine speed, > 80 RPM
  • Injection valve switched off
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N31-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0203 Cylinder 3 Injector "A" Circuit Injection Valve Open Circuit Cylinder 3
  • Signal voltage 4.5...5.5 V
  • Engine speed, > 80 RPM
  • Injection valve switched off
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N32-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0204 Cylinder 4 Injector "A" Circuit Injection Valve Open Circuit Cylinder 4
  • Signal voltage 4.5...5.5 V
  • Engine speed, > 80 RPM
  • Injection valve switched off
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0221 Throttle/Pedal Position Sensor/Switch "B" Circuit Range/Performance Throttle/Pedal Position Sensor/Switch "B" Circuit Range/Performance
  • TPS 1 - TPS 2 > 5.10...6.30%
  • Actual TPS 2 calculated value > TPS 1 calculated value
  • TPS 2 - calc. value > 9.00%
  • Engine speed > 480 RPM
 0.3 Sec
  • Multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
P0222 Throttle/Pedal Position Sensor/Switch "B" Circuit Low Throttle/Pedal Position Sensor/Switch "B" Circuit Low
  • Signal voltage < 0.20 V
 --- 0.1 Sec
  • Multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
P0223 Throttle/Pedal Position Sensor/Switch "B" Circuit High Throttle/Pedal Position Sensor/Switch "B" Circuit High
  • Signal voltage > 4.81 V
 --- 0.1 Sec
  • Multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
P0261 Cylinder 1 Injector "A" Circuit Low Injection Valves short to ground Cylinder 1
  • Signal voltage < 3.0 V
  • Injection valve Commanded off
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N30-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0262 Cylinder 1 Injector "A" Circuit High Injection Valves short to battery plus Cylinder 1
  • Signal current 2.20...4.0 A
  • Injection valve Commanded on
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N30-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0264 Cylinder 2 Injector "A" Circuit Low Injection Valves short to ground Cylinder 2
  • Signal voltage < 3.0 V
  • Injection valve Commanded off
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N31-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0265 Cylinder 2 Injector "A" Circuit High Injection Valves short to battery plus Cylinder 2
  • Signal current 2.20...4.0 A
  • Injection valve Commanded on
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N31-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0267 Cylinder 3 Injector "A" Circuit Low Injection Valves short to ground Cylinder 3
  • Signal voltage < 3.0 V
  • Injection valve Commanded off
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N32-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0268 Cylinder 3 Injector "A" Circuit High Injection Valves short to battery plus Cylinder 3
  • Signal current 2.20...4.0 A
  • Injection valve Commanded on
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N32-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0270 Cylinder 4 Injector "A" Circuit Low Injection Valves short to ground Cylinder 4
  • Signal voltage < 3.0 V
  • Injection valve Commanded off
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N33-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0271 Cylinder 4 Injector "A" Circuit High Injection Valves short to battery plus Cylinder 4
  • Signal current 2.20...4.0 A
  • Injection valve Commanded on
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injector -N33-. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .
P0300 Random/Multiple Cylinder Misfire Detected Misfire Crankshaft Speed Fluctuation (single or multiple)
  • Emission threshold Misfire Rate (MR), > 1.5%
  • Catalyst damage misfire rate > 1.60...23.53 %
 Case 1:
  • ECT @ start ≥ -48° C
Case 2:
  • ECT @ start n.a.
  • Then activation if ECT > -48° C
General:
  • Active after engine start idle - 150 [rpm] + 1 camshaft [rev]
  • Engine torque >= 0 Nm
  • Not in fuel cutoff mode
  • Rough road not detected
  • 1000 Rev.
  • 200 Rev
  • Continuously
  • 2 DCY
 -- Check the Spark plugs.-- Check the intake system for leaks.-- Check Fuel Injectors -N30, N31, N32, N33, -. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING -- Check the Ignition Coil with Power Output Stage -N152-. Refer to Ignition Coil -N152-, CHECKING .
P0301  Cylinder 1 Misfire Detected Misfire Crankshaft Speed Fluctuation (single or multiple)
  • Emission threshold Misfire Rate (MR), > 1.5%
  • Catalyst damage misfire rate > 1.60...23.53 %
 Case 1:
  • ECT @ start ≥ -48° C
Case 2:
  • ECT @ start n.a.
  • Then activation if ECT > -48° C
General:
  • Active after engine start idle - 150 [rpm] + 1 camshaft [rev]
  • Engine torque >= 0 Nm
  • Not in fuel cutoff mode
  • Rough road not detected
  • 1000 Rev.
  • 200 Rev
  • Continuously
  • 2 DCY
 -- Check the Spark plugs.-- Check the intake system for leaks.-- Check Fuel Injectors -N30, N31, N32, N33, -. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING -- Check the Ignition Coil with Power Output Stage -N152-. Refer to Ignition Coil -N152-, CHECKING .
P0302  Cylinder 2 Misfire Detected Misfire Crankshaft Speed Fluctuation (single or multiple)
  • Emission threshold Misfire Rate (MR), > 1.5%
  • Catalyst damage misfire rate > 1.60...23.53 %
 Case 1:
  • ECT @ start ≥ -48° C
Case 2:
  • ECT @ start n.a.
  • Then activation if ECT > -48° C
General:
  • Active after engine start idle - 150 [rpm] + 1 camshaft [rev]
  • Engine torque >= 0 Nm
  • Not in fuel cutoff mode
  • Rough road not detected
  • 1000 Rev.
  • 200 Rev
  • Continuously
  • 2 DCY
 -- Check the Spark plugs.-- Check the intake system for leaks.-- Check Fuel Injectors -N30, N31, N32, N33, -. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING -- Check the Ignition Coil with Power Output Stage -N152-. Refer to Ignition Coil -N152-, CHECKING .
P0303  Cylinder 3 Misfire Detected Misfire Crankshaft Speed Fluctuation (single or multiple)
  • Emission threshold Misfire Rate (MR), > 1.5%
  • Catalyst damage misfire rate > 1.60...23.53 %
 Case 1:
  • ECT @ start ≥ -48° C
Case 2:
  • ECT @ start n.a.
  • Then activation if ECT > -48° C
General:
  • Active after engine start idle - 150 [rpm] + 1 camshaft [rev]
  • Engine torque >= 0 Nm
  • Not in fuel cutoff mode
  • Rough road not detected
  • 1000 Rev.
  • 200 Rev
  • Continuously
  • 2 DCY
 -- Check the Spark plugs.-- Check the intake system for leaks.-- Check Fuel Injectors -N30, N31, N32, N33, -. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING -- Check the Ignition Coil with Power Output Stage -N152-. Refer to Ignition Coil -N152-, CHECKING .
P0304  Cylinder 4 Misfire Detected Misfire Crankshaft Speed Fluctuation (single or multiple)
  • Emission threshold Misfire Rate (MR), > 1.5%
  • Catalyst damage misfire rate > 1.60...23.53 %
 Case 1:
  • ECT @ start ≥ -48° C
Case 2:
  • ECT @ start n.a.
  • Then activation if ECT > -48° C
General:
  • Active after engine start idle - 150 [rpm] + 1 camshaft [rev]
  • Engine torque >= 0 Nm
  • Not in fuel cutoff mode
  • Rough road not detected
  • 1000 Rev.
  • 200 Rev
  • Continuously
  • 2 DCY
 -- Check the Spark plugs.-- Check the intake system for leaks.-- Check Fuel Injectors -N30, N31, N32, N33, -. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING -- Check the Ignition Coil with Power Output Stage -N152-. Refer to Ignition Coil -N152-, CHECKING .
P0321 Ignition/Distributor Engine Speed Input Circuit Range/Performance Crankshaft Position Sensor rationality check
  • Counted teeth vs reference = incorrect
  • monitoring reference gap failure
 --- 1.5 Sec
  • Multiple
  • 2 DCY
 -- Check the Engine Speed (RPM) Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .
P0322 Ignition/Distributor Engine Speed Input Circuit No Signal Crankshaft Position Sensor signal activity check
  • Camshaft signals > 5 [-]
  • Engine speed, no signal
 --- 2.5 Sec
  • Multiple
  • 2 DCY
 -- Check the Engine Speed (RPM) Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .
P0324 Knock Control System Error Knock Control System Error
  • Signal fault counter (combustion) > 28.00 [-]
or
  • Signal fault counter (measuring window) > 2.00 [-]
  • Engine speed > 2, 500 RPM
 0.5 Sec
  • Multiple
  • 2 DCY
 -- Check the Knock Sensor -G61-. Refer to Knock Sensor 1 -G61-, CHECKING .
P0327 Knock Sensor Circuit Low Knock Sensor Circuit Low Short to Ground:
  • Lower threshold < -0.70 V
 Short to Ground:
  • Engine speed > 1, 000 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Knock Sensor -G61-. Refer to Knock Sensor 1 -G61-, CHECKING .
Signal range check:
  • Lower threshold < 1.00...5.49 V
 Signal range check:
  • Engine speed > 2400 RPM
  • ECT > 40° C
  • Engine load > 30 - 35.3%
 4 Sec
  • Multiple
  • 2 DCY
P0328 Knock Sensor Circuit High Input Knock Sensor Circuit High Input Short to Battery Voltage:
  • Upper threshold > 1.00 [V]
  • Engine speed, > 1, 000 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Knock Sensor -G61-. Refer to Knock Sensor 1 -G61-, CHECKING .
Signal Range Check:
  • Upper threshold > 33.00...90.00 V
  • Engine speed > 2, 400 RPM
  • ECT > 40° C
  • Engine load > 30...35.30%
 4 Sec
  • Multiple
  • 2 DCY
P0341 Camshaft Position Sensor "A" Circuit Range/Performance Bank 1 or Single Sensor Phase Sensor 1 rationality check
  • Signal pattern incorrect
  • Defect counter = 8 [-]
 --- 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Camshaft Position (CMP) Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING .
P0342 Camshaft Position Sensor "A" Circuit Low Bank 1 or Single Sensor Phase Sensor 1 rationality check
  • Signal voltage permanently low
  • Crankshaft signals = 8 [-]
 --- 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Camshaft Position (CMP) Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING .
P0343 Camshaft Position Sensor "A" Circuit High Bank 1 or Single Sensor Phase Sensor 1 rationality check
  • Signal voltage permanently high
  • Crankshaft signals = 8 [-]
 --- 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Camshaft Position (CMP) Sensor -G40-. Refer to Camshaft Position Sensor -G40-, CHECKING .
P0351 Ignition Coil "A" Primary Control Circuit/Open Ignition Coils open circuit
  • Signal current 0.25...-2.0 mA
  • Internal check failed
  • Engine speed > 680 RPM
 2.0 Sec
  • Continuous
  • 2 DCY
 -- Check the Ignition Coil with Power Output Stage -N152-. Refer to Ignition Coil -N152-, CHECKING .
P0353 Ignition Coil "C" Primary Control Circuit/Open Ignition Coils open circuit
  • Signal current 0.25...-2.0 mA
  • Internal check failed
  • Engine speed > 680 RPM
 2.0 Sec
  • 2 DCY
 -- Check the Ignition Coil with Power Output Stage -N152-. Refer to Ignition Coil -N152-, CHECKING .
P0420  Catalyst System Efficiency Below Threshold Bank 1 Catalyst System measure of OSC compared to OSC of borderline catalyst
  • Measured Oxygen storage capacity (OSC) arithmetic average value for catalyst < 1.00
  • Time after engine start > n.a.
  • OR
  • Time after dew point > 0.0...5.0 Sec
  • Delta exhaust gas mass flow < 15 kg/h
  • Exhaust gas mass flow, lower range 20.0...120.0 kg/h
  • Exhaust gas mass flow upper range n.a. kg/h
  • Modeled exhaust gas temp, dynamic < 4.0 K
  • Modeled exhaust gas temp in catalyst system, lower range 620 - 850° C
  • Modeled exhaust gas temp in catalyst system, upper range n.a.
  • Minimum modeled exhaust gas temp in catalyst system > 350° C
  • For time > 120 Sec
  • Filtered minimum modeled exhaust gas temp in catalyst system > 350° C
  • Engine load 15.00...84.80%
  • Evap purge loading not high
  • Engine speed 1200...4200 RPM
  • Deviation between lambda < 2.00%
  • Setpoint and actual lambda value
  • Lambda control closed loop
  • Lambda control not at min or max limit
  • AAT > -48° C
  • Number of checks, 2
  • O2S front/rear, ready/no faults
  • AIR, not active
  • No misfire
  • O2S front plausibility check in current driving cycle ready
  • O2S front response monitoring in current driving cycle ready
 30 Sec
  • Once/DCY
  • 2 DCY
 Check the Long Term Fuel Trim for out of range reading. If Fuel Trim is out of range, correct any related codes (misfire, fuel trim faults, MAP, BARO, HO2 or ECT) before replacement of catalyst, or damage to the replacement catalyst will occur.-- Check the Three Way Catalytic Converter (TWC). Refer to THREE WAY CATALYTIC CONVERTER, TWC CHECKING .-- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING 
P043E EVAP System Leak Detection Reference Orifice Low Flow EVAP Leak Detection Pump out of range high
  • during engine off: evap pump current during reference measurement > 40.0 [mA]
 During Engine Off:
  • ECT at start > 4° C
  • Difference between ECT @ start and AAT <= 15.0 K
  • AAT < 35; > 4° C
  • Barometric Pressure > 73 kPa
  • Time since engine start in preceding DCY ≥ 600 s
  • Change in battery voltage during monitoring < 1.00 [V]
  • Engine off time >= 5.0 [s]
  • Vehicle speed 0 km/h
  • Evap purge adaptation < 5.00
  • Deviation of filtered evap pump current during reference measurement within range <= 2.0 mA
  • Change in relative evap pump current during monitoring < n.a.
  • Within time n.a.
  • During ECM keep alive-time after ignition off, max time < 900 Sec
  • Airbag not activated
During Engine Running:
  • ECT > 60° C
  • ECT @ start < 60° C
  • AAT < 35; > 4° C
  • Barometric Pressure > 73 kPa
  • Time since engine start >= 600.0 Sec
  • Integrated evap purge mass since last purge stop > 2.0 [g]
  • Integrated evap purge mass since last monitoring run > 0.0 [g]
  • Intake manifold vacuum > 10.00 kPa
  • Vehicle speed < 120; >= 0 km/h
  • delta vehicle speed <= 30 km/h
  • fuel volume flow <= 5.00 [ml/s]
  • Change in battery voltage during monitoring < 1.50 [V]
  • At least one leak detection monitor during engine off = preceding
  • Engine = not idle
  • Engine speed > 30 RPM
  • no fuel cut off
  • no gear shift
  • no engine stop
  • O2S front ready
 10 Sec
  • Once/ DCY
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .-- Check the EVAP System, for Leaks. Refer to EVAP SYSTEM, CHECKING FOR LEAKS -- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .
  • during engine running: evap pump current during reference measurement > 40.0 [mA]
 3 Sec
P043F EVAP System Leak Detection Reference Orifice High Flow EVAP Leak Detection Pump out of range Low
  • during engine off: evap pump current during reference measurement < 15.0 [mA]
 During Engine Off:
  • ECT at start > 4° C
  • Difference between ECT @ start and AAT <= 15.0 K
  • AAT < 35; > 4° C
  • Barometric Pressure > 73 kPa
  • Time since engine start in preceding DCY ≥ 600 s
  • Change in battery voltage during monitoring < 1.00 [V]
  • Engine off time >= 5.0 [s]
  • Vehicle speed 0 km/h
  • Evap purge adaptation < 5.00
  • Deviation of filtered evap pump current during reference measurement within range <= 2.0 mA
  • Change in relative evap pump current during monitoring < n.a.
  • Within time n.a.
  • During ECM keep alive-time after ignition off, max time < 900 Sec
  • Airbag not activated
During Engine Running:
  • ECT > 60° C
  • ECT @ start < 60° C
  • AAT < 35; > 4° C
  • Barometric Pressure > 73 kPa
  • Time since engine start >= 600.0 Sec
  • Integrated evap purge mass since last purge stop > 2.0 [g]
  • Integrated evap purge mass since last monitoring run > 0.0 [g]
  • Intake manifold vacuum > 10.00 kPa
  • Vehicle speed < 120; >= 0 km/h
  • delta vehicle speed <= 30 km/h
  • fuel volume flow <= 5.00 [ml/s]
  • Change in battery voltage during monitoring < 1.50 [V]
  • At least one leak detection monitor during engine off = preceding
  • Engine = not idle
  • Engine speed > 30 RPM
  • no fuel cut off
  • no gear shift
  • no engine stop
  • O2S front ready
 10 Sec
  • Once/DCY
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .-- Check the EVAP System, for Leaks. Refer to EVAP SYSTEM, CHECKING FOR LEAKS -- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .
  • during engine on: evap pump current during reference measurement < 15.0 [mA]
 3.0 Sec
P0441  EVAP System Incorrect Purge Flow EVAP Purge Valve functional check: stuck close
  • Drop of EVAP pump current < 1 mA
  • Within time 12.0 Sec
  • ECT > 60° C
  • ECT @ start < 60° C
  • AAT < 35; > 4° C
  • Barometric Pressure > 73 kPa
  • Time since engine start >= 600.0 [s]
  • Integrated evap purge mass since last purge stop > 2.0 [g]
  • Integrated evap purge mass since last monitoring run > 0.0 [g]
  • Intake manifold vacuum > 10.00 [kPa]
  • Vehicle speed < 120; >= 0 km/h
  • Delta vehicle speed <= 30 km/h
  • Fuel volume flow <= 5.00 [ml/s]
  • At least one leak detection monitor during engine off preceding
  • Engine not idle
  • Engine speed > 30 [rpm]
  • Difference lambda control from min. value > 0.05
  • Difference lambda control from max. value < 0.05
  • No fuel cut off
  • No gear shift
  • No engine stop
  • O2S front ready
  • Evap purge valve commanded on
 35.5 Sec
  • Once/ DCY
  • 2 DCY
 Inspect the EVAP system hoses for kinking or damage. If EVAP hoses are OK:-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P0442  EVAP System Leak Detected (small leak) EVAP System Small Leak pressure check
  • Modeled pressure from pump current < 0.90 kPa
  • ECT @ start >= 4° C
  • Difference between ECT @ start and AAT <= 15.0 K
  • AAT <35; > 4° C
  • Barometric pressure > 73 kPa
  • Time since engine start in preceding DCY >= 600 s
  • Change in battery voltage during monitoring < 1.00 V
  • Engine off time > 5 s
  • Veh. speed >= 0 km/h
  • Evap purge adaptation < 5.00
  • No sudden change in evap pump current (filling event) < 1.5; > -0.3 mA
  • Deviation of filtered evap pump current during reference measurement within range <= 2.0 mA
  • Change in relative evap pump current during monitoring < n.a.
  • Within time n.a.
  • ECM keep alive time after ignition off < 900 s
  • Airbag not activated
 700 Sec
  • Once/ DCY
  • 2 DCY
 -- Check the EVAP System, for Leaks. Refer to EVAP SYSTEM, CHECKING FOR LEAKS -- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P0444 EVAP System Purge Control Valve "A" Circuit Open EVAP Purge Valve open circuit
  • Signal voltage 4.70...5.40 V
  • EVAP purge valve Commanded Off
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .
P0447 EVAP System Vent Control Circuit Open EVAP Leak Detection Pump Valve open circuit
  • Signal voltage > 4.7...5.4 V
  • EVAP pump solenoid commanded off.
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P0448 EVAP System Vent Control Circuit Shorted EVAP Leak Detection Pump Valve short to battery plus OR short to ground Short To Ground
  • Signal voltage < 2.74...3.26 V
  • EVAP pump solenoid commanded on.
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
Short to Battery Plus
  • signal current > 2.2...4.0 A
  • EVAP pump solenoid commanded off.
P0456  EVAP System Leak Detected (very small leak) EVAP System Very Small Leak rationality check
  • EVAP system leakage area calculated from pump current curve > 0.17 mm2
  • Engine temperature @ engine start >= 4° C
  • Difference between ECT @ start and AAT <= 15.0 K
  • AAT <35; > 4° C
  • Barometric pressure > 73 kPa
  • Time since engine start in preceding DCY > 600 s
  • Change in battery voltage during monitoring < 1.00 V
  • Engine off time > 5 s
  • Veh. speed >= 0 km/h
  • Evap purge adaptation < 5.00
  • No sudden change in evap pump current (filling event) < 1.5; -0.3 mA
  • Deviation of filtered evap pump current during reference measurement within range <= 2.0 mA
  • Change in relative evap pump current during monitoring < n.a.
  • Within time n.a.
  • ECM keep alive time after ignition off < 900 s
  • Airbag not activated
 800 Sec
  • Once/ DCY
  • 2 DCY
 -- Check the EVAP System, for Leaks. Refer to EVAP SYSTEM, CHECKING FOR LEAKS -- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P0458 EVAP System Purge Control Valve "A" Circuit Low EVAP Purge Valve short to ground
  • Signal voltage 0.00...3.26 V
  • EVAP purge valve, Commanded off
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .
P0459 EVAP System Purge Control Valve "A" Circuit High EVAP Purge Valve short to Battery Plus
  • Signal current > 2.2 A
  • EVAP purge valve, Commanded On
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .
P0496  EVAP System High Purge Flow EVAP Purge Valve functional check: stuck open
  • actual evap pump current difference between reference measurement to idle divided by pump current difference from the last leak detection phase during engine off > 1.40 [-]
  • ECT > 60° C
  • ECT @ start < 60° C
  • AAT < 35; > 4° C
  • Barometric pressure> 73 kPa
  • Time since engine start >= 600.0 [s]
  • Integrated evap purge mass since last purge stop > 2.0 [g]
  • Integrated evap purge mass since last monitoring run > 0.0 [g]
  • Intake manifold vacuum > 10.00 [kPa]
  • Vehicle speed < 75; >= 0 [mph]
  • Delta vehicle speed <= 25 [mph]
  • Fuel volume flow <= 5.00 [ml/s]
  • At least one leak detection monitor during engine off preceding
  • Engine not idle
  • engine speed > 30 [rpm]
  • No fuel cut off
  • No gear shift
  • No engine stop
  • O2S front ready
  • Evap purge valve commanded off
 6.5 Sec
  • Once/ DCY
  • 2 DCY
 Inspect the EVAP system hoses for kinking or damage. If EVAP hoses are OK:-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .-- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P050A Cold Start Idle Control System Performance Cold Start Monitoring Idle Controller out of range low
  • Engine speed deviation > 100 RPM
  • RPM controller torque value n.a.
  • Catalyst heating active
  • Veh speed 0 km/h
  • Barometric pressure > 71.88 kPa
  • Torque safety limitation not active
  • Driver request not active
For manual transmission:
  • Engine load < n.a.%
 9.0 sec
  • Multiple
  • 2 DCY
 Check for carbon buildup from reversion behind the throttle plate. If buildup is present, clean throttle body with suitable cleaner. If no deposits are present in the throttle body: -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
Cold Start Monitoring Idle Controller out of range high
  • Engine speed deviation < -200 RPM
  • RPM controller torque value n.a.
  • Integrated number of fuel cut off transitions >= 3.00
  • Catalyst heating active
  • Veh speed 0 km/h
  • Barometric pressure > 71.88 kPa
  • Torque safety limitation not active
  • Driver request not active
P050B Cold Start Ignition Timing Performance Cold Start Monitoring Ignition Control ignition timing monitor
  • Difference between commanded and actual spark timing > 20%
  • Time during catalyst heating > 10 s
  • Commanded spark retard during catalyst heating < 80%
  • Catalyst heating active
  • Idle speed active
  • Difference engine load <= 3%
  • Delta engine speed <= 2, 000 RPM
  • Engine load <= 100.01%
 8 Sec
  • Once/ DCY
  • 2 DCY
 If an Engine Speed sensor code is also set, diagnose that DTC first. -- Check the Ignition Coil with Power Output Stage -N152-. Refer to Ignition Coil -N152-, CHECKING .
P0501 Vehicle Speed Sensor "A" Circuit Range/Performance Vehicle Speed Sensor plausibility check
  • VSS signal < 4 km/h
  • ECT > 40° C
  • Engine speed 1, 520...4, 520 RPM
  • Fuel cutoff active
 2.0 Sec
  • Multiple
  • 2 DCY
 -- Check vehicle speed signal. Refer to VEHICLE SPEED SIGNAL, CHECKING .
P0506 Idle Control System RPM - Lower Than Expected Idle Controller out of range low
  • Idle speed Deviation > 100 RPM
  • RPM controller torque value n.a.
  • Vehicle speed 0 km/h
  • Barometric pressure > 71.88 kPa
  • IAT @ manifold > -48° C
  • ECT > -48° C
  • Torque safety limitation not active
  • Driver request not active
  • For time > 10.0 Sec
For manual transmission:
  • Engine load < n.a.%
 9.0 Sec
  • Multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
P0507 Idle Control System RPM - Higher Than Expected Idle Controller out of range high
  • Idle speed Deviation > 100 RPM
  • RPM controller torque value n.a.
  • Integrated number of fuel cut off transitions >= 3.00
  • Vehicle speed 0 km/h
  • Barometric pressure > 71.88 kPa
  • IAT @ manifold > -48° C
  • ECT > -48° C
  • Torque safety limitation not active
  • Driver request not active
  • For time > 10.0 Sec
 9.0 Sec
  • Multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
P0606 Control Module Processor Barometric Pressure Sensor Plausibility Check
  • Signal gradient > 7.50 kPa/s
  • Signal gradient < -7.50 kPa/s
   2 Sec
  • Continuous
  • 2 DCY
 -- Replace the Engine Control Module (ECM) -J623-. Refer to the service information.
Barometric Pressure Sensor short to battery/ open circuit
  • Signal voltage >4.88 V
   0.2 Sec
  • Multiple
  • 2 DCY
Barometric Pressure Sensor short to ground
  • Signal voltage < 0.20 V
  
Barometric Pressure Sensor out of range high
  • Barometric Pressure Sensor > 115.00 kPa
   2 Sec
  • Continuous
  • 2 DCY
Barometric Pressure Sensor out of range low
  • Barometric Pressure Sensor < 45.00 kPa
   2 Sec
  • Continuous
  • 2 DCY
ECM: 5V Supply Voltage internal hardware check
  • Under-/ overvoltage detection
   2 Sec
  • Continuous
  • 2 DCY
ECM: EEPROM Functional check
  • Internal checksum; failed
  • Ignition = On
 0.5 Sec
  • Continuous
  • 2 DCY
ECM: Electronic Throttle Control Module Function monitoring: A/D converter
  • Test voltage/ test pulse check; failed
   0.5 Sec
  • Continuous
  • 2 DCY
ECM: Electronic Throttle Control Module Function monitoring: torque
  • Comparison with allowed engine torque; incorrect
  • Internal engine speed >1, 240 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
ECM: Electronic Throttle Control Module Function monitoring: StartStop
  • Engine restart; failed
   0.5 Sec
  • Continuous
  • 2 DCY
ECM: Electronic Throttle Control Module Function monitoring: engine speed deviation
  • Difference between calculated and internal engine speed > 320 RPM
  • Internal engine speed > 520 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
ECM: Electronic Throttle Control Module Function monitoring: Ignition timing
  • Internal check; failed
   0.5 Sec
  • Continuous
  • 2 DCY
ECM: Electronic Throttle Control Module Function monitoring: intern/ Injection rate limitation
  • System reaction; incorrect
   0.5 Sec
  • Continuous
  • 2 DCY
ECM: Electronic Throttle Control Module Function monitoring: accelerator position
  • Internal check; failed
   0.5 Sec
  • Continuous
  • 2 DCY
ECM: Electronic Throttle Control Module : monitoring module
  • Function controller check; failed
  • AND
  • Monitoring module check; no failure
  • SPI- interface; no failure
 0.5 Sec
  • Continuous
  • 2 DCY
ECM: Self Check for Sensor Integrated Circuit internal hardware check (electrical adjustment communication, voltage supply)
  • Check; failed
   0.5 Sec
  • Continuous
  • 2 DCY
ECM:WDA Function monitoring: WDA
  • General cause; failure
  • Internal check; failure
  • Overvoltage detection; failure
   0.5 Sec
  • Continuous
  • 2 DCY
CAN: Controller controller RAM check
  • RAM error memory checksum error
  • Initialization phase
 0
  • Once/ DCY
  • 2 DCY
P0627 Fuel Pump "A" Control Circuit/Open Fuel Pump Relay Open Circuit / Short to Ground Open circuit
  • Signal voltage 4.50...5.50 V
Short to ground
  • Signal voltage < 3.0 V
  • Pump relay commanded off.
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Pump power supply. Refer to Fuel Pump Relay -J17-, Fuel Delivery Unit -GX1- CHECKING .
P0629 Fuel Pump "A" Control Circuit High Fuel Pump Relay Short to Battery Plus
  • Signal current 0.60...1.20 A
  • Pump relay commanded on.
  • Engine speed > 80 RPM
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Pump power supply. Refer to Fuel Pump Relay -J17-, Fuel Delivery Unit -GX1- CHECKING .
P0638 Throttle Actuator Control Range/Performance Bank 1 Throttle Actuator Basic Settings rationality check close movement
  • Time to close to reference point > 0.6 Sec
  • reference point 2.88%
  • Engine speed 0 RPM
  • Vehicle speed 0 km/h
  • IAT > -20° C
  • ECT > -20° C
Case 1:
  • Ignition on
Case 2:
  • Engine shut-off time > 0.5 Sec
  • Number of checks 2.00
 5.0 Sec
  • Multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
Throttle Actuator Basic Settings signal range check @ mechanical stop low
  • TPS 1 signal voltage < 0.40; > 0.80 V
  • OR
  • TPS 2 signal voltage < 4.20; > 4.60 V
  • TPS 1 + TPS 2 < 4.82; > 5.18 V
  • Engine speed 0 RPM
  • Vehicle speed 0 km/h
Case 1:
  • Ignition on
  • IAT @ manifold -20...115° C
  • ECT > -20...115° C
Case 2:
  • Engine shut-off time > 0.5 Sec
  • ECT 5...115° C
  • IAT @ manifold 5...143° C
 0.3 Sec
  • Multiple
  • 2 DCY
P0641 Sensor Reference Voltage "A" Circuit/Open ECM: Sensor Reference Circuit A signal range check
  • Signal voltage deviation > +/- 0.3 V
 --- 0.5 Sec
  • 2 DCY
 -- If any sensor specific codes are present, perform the diagnostic for those codes first. If no sensor codes are set, replace the Engine Control Module (ECM) -J623-. Refer to the service information.
P0651 Sensor Reference Voltage "B" Circuit/Open ECM: Sensor Reference Circuit B signal range check
  • Signal voltage deviation > +/- 0.3 V
 --- 0.5 Sec
  • 2 DCY
 -- If any sensor specific codes are present, perform the diagnostic for those codes first. If no sensor codes are set, replace the Engine Control Module (ECM) -J623-. Refer to the service information.
P0697 Sensor Reference Voltage "C" Circuit/Open ECM: Sensor Reference Circuit C signal range check
  • Signal voltage deviation > +/- 0.3 V
 --- 0.5 Sec
  • 2 DCY
 -- If any sensor specific codes are present, perform the diagnostic for those codes first. If no sensor codes are set, replace the Engine Control Module (ECM) -J623-. Refer to the service information.
P150A Engine Off Timer Performance Engine Off Timer Performance
  • Difference between engine off time and ECM after run time < -12 s or > 12 s
  • Ignition = on
  • CAN active
 2 Sec
  • Once / DCY
  • 2 DCY
 Check for related TSB's. If none apply; check the power and ground inputs to the ECM BEFORE replacing ECM. Lack of ignition off power supply will cause the timer to stop. Refer to the Wiring Diagrams for power and ground locations to the ECM. If ECM power and grounds are present;-- Replace the Engine Control Module (ECM) -J623-. Refer to the service information.
P169A vehicle in transport mode ECM: Transport Mode vehicle in transport mode
  • Transport mode; active
 For activation:
  • During ECM keep alive time after ignition off
  • Vehicle speed < 5 km/h
  • Engine speed 0 RPM
  • Max trip mileage since initial < 100 km
  • Vehicle start-up production mode not active
For Hybrid:
  • Drive motor; off
 0 Sec
  • 1 DCY
 -- See appropriate service information to turn off Transport mode.
P1609 Airbag Safety measures due to crash with airbag activation Airbag Safety measures due to crash with airbag activation
  • Airbag(s) activated
   0 Sec
  • Continuous
  • 2 DCY
  
P2096 Post Catalyst Fuel Trim System Too Lean Bank 1 Fuel System Out of range Low
  • I-part of 2nd lambda control loop < -0.03 [-]
 General:
  • Modeled exhaust gas temp 400...1000° C
  • Lambda control in closed loop, not at min or max limit
  • 2nd lambda control closed loop
  • O2S front ready, no DTC
  • O2S rear ready, no DTC
  • O2 heaters active
  • AND
  • Integrated exhaust gas mass > 50.0 g
After the following mixture disturbances:
  • Time fuel cut off > 0.5 Sec
  • Deviation engine load n.a.
  • ECT < 50° C
  • Catalyst Heating active
  • AIR active
  • Lambda setpoint <1; > 1
  • Catalyst purge active
  • Engine speed n.a.
  • for time n.a.
Disabling the offset adaptation after repeated transients within a short time:
  • Acceleration enrichment active
  • OR
  • Deceleration enleanment active
  • THEN
  • LSU offset adaption stops if event counter > 5.00
  • AND
  • Exhaust gas mass flow 20.00...180.00 kg/h
  • OR
  • Exhaust gas mass flow n.a.
  • Within time n.a.
 40 Sec
  • Continuous
  • 2 DCY
 Check for air leaks in the exhaust system between the front O2S and the catalytic converter. If the exhaust system is sealed:-- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING 
P2097 Post Catalyst Fuel Trim System Too Rich Bank 1 Fuel System Out of range High
  • I-part of 2nd lambda control loop > 0.03 [-]
 General:
  • Modeled exhaust gas temp 400...1000° C
  • Lambda control in closed loop, not at min or max limit
  • 2nd lambda control closed loop
  • O2S front ready, no DTC
  • O2S rear ready, no DTC
  • O2 heaters active
  • AND
  • Integrated exhaust gas mass > 50.0 g
After the following mixture disturbances:
  • Time fuel cut off > 0.5 Sec
  • Deviation engine load n.a.
  • ECT < 50° C
  • Catalyst Heating active
  • AIR active
  • Lambda setpoint <1; > 1
  • Catalyst purge active
  • Engine speed n.a.
  • for time n.a.
Disabling the offset adaptation after repeated transients within a short time:
  • Acceleration enrichment active
  • OR
  • Deceleration enleanment active
  • THEN
  • LSU offset adaption stops if event counter > 5.00
  • AND
  • Exhaust gas mass flow 20.00...180.00 kg/h
  • OR
  • Exhaust gas mass flow n.a.
  • Within time n.a.
 40 Sec
  • Continuous
  • 2 DCY
 If P0420 is also set, refer to that diagnostic first. -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING 
P2101 Throttle Actuator "A" Control Motor Circuit Range/Performance Throttle Actuator signal range check
  • Duty cycle > 80%
  • ECM power stage no failure
 --- 5 Sec
  • Continuous
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
Throttle Actuator rationality check
  • Deviation throttle value angles vs. throttle value setpoint > 4...50%
   0.5 Sec
  • Continuous
  • 2 DCY
P2106 Throttle Actuator Control System - Forced Limited Power Throttle Actuator short to battery plus/ short to ground
  • Internal check failed
   0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338 -, CHECKING .
Throttle Actuator open circuit
  • Internal check failed
  • Duty cycle > 80%
  • OR
  • Deviation throttle value angles vs. throttle value setpoint > 4...50%
 0.5 Sec
  • Continuous
  • 2 DCY
Throttle Actuator temperature / current monitoring
  • Internal check failed
   0.5 Sec
  • Continuous
  • 2 DCY
Throttle Actuator functional check
  • Internal check failed
   0.5 Sec
  • Continuous
  • 2 DCY
P2122 Throttle/Pedal Position Sensor/Switch "D" Circuit Low Accelerator Pedal Position Sensor 1 out of range low
  • Signal voltage < 0.61 V
 --- 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Accelerator Pedal Position Sensor 1 -G79-. Refer to Accelerator Pedal Module - GX2-, CHECKING .
P2123 Throttle/Pedal Position Sensor/Switch "D" Circuit High Accelerator Pedal Position Sensor 1 out of range high
  • Signal voltage > 4.79 V
 --- 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Accelerator Pedal Position Sensor 1 -G79-. Refer to Accelerator Pedal Module - GX2-, CHECKING .
P2127 Throttle/Pedal Position Sensor/Switch "E" Circuit Low Accelerator Pedal Position Sensor 2 out of range low
  • Signal voltage < 0.27 V
 --- 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Accelerator Pedal Position Sensor 1 -G79-. Refer to Accelerator Pedal Module - GX2-, CHECKING .
P2128 Throttle/Pedal Position Sensor/Switch "E" Circuit High Accelerator Pedal Position Sensor 2 out of range high
  • Signal voltage > 2.43 V
 --- 0.5 s
  • Continuous
  • 2 DCY
 -- Check the Accelerator Pedal Position Sensor 1 -G79-. Refer to Accelerator Pedal Module - GX2-, CHECKING .
P2138 Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation Accelerator Pedal Position Sensor 1 and 2 rationality check
  • Signal voltage sensor 1 vs. sensor 2 > 0.17...0.70 V
  • Signal voltage sensor 1 > 445.0 mV
  • Signal voltage sensor 2 > 445.0 mV
 0.24 Sec
  • Continuous
  • 2 DCY
 -- Check the Accelerator Pedal Position Sensor 1 -G79-. Refer to Accelerator Pedal Module - GX2-, CHECKING .
P2177 System Too Lean Off Idle Bank 1 System too lean off idle, Bank 1
  • Adaptive value > 28%
  • Number of injections after engine start > 1500
  • Engine speed < 4640 RPM
  • Engine load 30...100%
  • ECT > 59° C
  • IAT < 85° C
  • OR
  • Part load adaptation completed
  • Lambda control, closed loop
  • EVAP purge valve closed
 8 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injectors -N30, N31, N32, N33, -. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .-- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING .
P2178 System Too Rich Off Idle Bank 1 System too rich off idle, Bank 1
  • Adaptive value < -20%
  • Number of injections after engine start > 1500
  • Engine speed < 4640 RPM
  • Engine load 30...100%
  • ECT > 59° C
  • IAT < 85° C
  • OR
  • Part load adaptation completed
  • Lambda control, closed loop
  • EVAP purge valve closed
 8 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injectors -N30, N31, N32, N33, -. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .-- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .
P2181 Cooling System Performance Engine Cooling System cooling system performance not in the expected range
  • Cooling system temperature too low after a sufficient mass air flow integral < 70...73° C
 MOnitor entry conditions:
  • ECT at start, - 10...60° C
  • AAT -10...60° C
  • IAT @ manifold n.a.
  • Begin of air mass integration when ECT > 30° C
  • Accumulated integrated air mass < 0.91...2.00 kg
  • Fuel cutoff active
  • Engine load > 95%
  • OR
  • Engine load < 15.47...16.93 %
  • Integrated air mass 4...19 kg/h
Conditions At fault decision:
  • (Average values since start)
  • Mass air flow (lower threshold) >= 35...60 kg/h
  • Mass air flow (upper threshold) <= 120.00...280.00 kg/h
  • Vehicle speed (lower threshold) >= 30 km/h
  • Vehicle speed (upper threshold) <= 120 km/h
 260 Sec
  • Once/ DCY
  • 2 DCY
 -- Check Engine Coolant Temperature (ECT) Sensor --. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING -- Check the Coolant Pump -V50- Refer to the service information.-- Check the Coolant Thermostat. Refer to the service information.
P2184 Engine Coolant Temperature Sensor 2 Circuit Low Engine Coolant Temperature Sensor @ Radiator Outlet short to ground
  • ECT @ Outlet > 140° C
 --- 2 Sec
  • Continuous
  • 2 DCY
 -- Check the Engine Coolant Temperature Sensor On Radiator Outlet -G83-. Refer to Engine Coolant Temperature Sensor On Radiator Outlet -G83-, CHECKING .
P2185 Engine Coolant Temperature Sensor 2 Circuit High Engine Coolant Temperature Sensor @ Radiator Outlet short to battery / open circuit
  • ECT @ Outlet < -40° C
 --- 2 Sec
  • Continuous
  • 2 DCY
 -- Check the Engine Coolant Temperature Sensor On Radiator Outlet -G83-. Refer to Engine Coolant Temperature Sensor On Radiator Outlet -G83-, CHECKING .
P2187 System Too Lean at Idle Bank 1 Fuel System Too Lean at Idle
  • Adaptive value > 5.02%
  • Number of injections after engine start > 1500
  • Engine speed < 840 RPM
  • Engine load 9...23%
  • ECT > 59° C
  • IAT < 85° C
  • OR
  • Part load adaptation completed
  • Lambda control, closed loop
  • EVAP purge valve closed
 12 Sec
  • Continuous
  • 2 DCY
 -- Check the intake system for vacuum leaks.-- Check the vacuum lines for leaks-- Check the Fuel Injectors -N30, N31, N32, N33, -. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .-- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING .
P2188 System Too Rich at Idle Bank 1 System Too Rich at Idle
  • Adaptive value < -5.02%
  • Number of injections after engine start > 1500
  • Engine speed < 840 RPM
  • Engine load 9...23%
  • ECT > 59° C
  • IAT < 85° C
  • OR
  • Part load adaptation completed
  • Lambda control, closed loop
  • EVAP purge valve closed
 12 Sec
  • Continuous
  • 2 DCY
 -- Check the Fuel Injectors -N30, N31, N32, N33, -. Refer to Cylinder 1 - 4 Fuel Injectors --, CHECKING .-- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING .-- Check the Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-. Refer to EVAP Canister Purge Regulator Valve 1 - N80-, CHECKING .
P2195  O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Oxygen Sensors front out of range high
  • Delta lambda of 2nd lambda control loop > 0.07
 General:
  • Modeled exhaust gas temp 400...1000° C
  • Lambda control closed loop.
  • 2nd Lambda control closed loop.
  • O2S front and rear, ready
  • O2S front and rear heaters, ready
  • AND
  • Integrated exhaust gas mass > 50.0 g
After The Following Mixture Disturbances:
  • Time fuel cut off > 0.5 Sec
  • Deviation engine load n.a.
  • ECT < 50° C
  • Catalyst heating active
  • AIR active
  • Lambda setpoint <1; >1
  • Catalyst purge active
Disabling The Offset Adaptation After Repeated Transients Within A Short Time:
  • Acceleration enrichment active
  • OR
  • Deceleration enleanment active
  • THEN
  • LSU offset adaptation stops if event counter > 5.00
  • AND
  • Exhaust gas mass flow 20...180.00 kg/h.
CASE 1:
  • 1st lambda control loop not at min or max limit
  • 2nd lambda control loop active
  • OR
CASE 2:
  • 1st lambda control loop at min limit
  • O2S front < 1.0
  • O2S rear voltage < 0.4 V
  • OR
CASE 3:
  • 1st lambda control loop at max limit
  • O2S front > 1.0
  • O2S rear voltage > 0.6 V
 40 Sec
  • Multiple
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P2196  O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1 Oxygen Sensors front out of range low
  • Delta lambda of 2nd lambda control loop < -0.07
 General:
  • Modeled exhaust gas temp 400...1000° C
  • Lambda control closed loop.
  • 2nd Lambda control closed loop.
  • O2S front and rear, ready
  • O2S front and rear heaters, ready
  • AND
  • Integrated exhaust gas mass > 50.0 g
After The Following Mixture Disturbances:
  • Time fuel cut off > 0.5 Sec
  • Deviation engine load n.a.
  • ECT < 50° C
  • Catalyst heating active
  • AIR active
  • Lambda setpoint <1; >1
  • Catalyst purge active
Disabling The Offset Adaptation After Repeated Transients Within A Short Time:
  • Acceleration enrichment active
  • OR
  • Deceleration enleanment active
  • THEN
  • LSU offset adaptation stops if event counter > 5.00
  • AND
  • Exhaust gas mass flow 20...180.00 kg/h.
CASE 1:
  • 1st lambda control loop not at min or max limit
  • 2nd lambda control loop active
  • OR
CASE 2:
  • 1st lambda control loop at min limit
  • O2S front < 1.0
  • O2S rear voltage < 0.4 V
  • OR
CASE 3:
  • 1st lambda control loop at max limit
  • O2S front > 1.0
  • O2S rear voltage > 0.6 V
 40 Sec
  • Multiple
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P2237 O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1 Oxygen Sensors Front Open Circuit Pump Current
  • O2S voltage signal front 1.49...1.51 V
  • AND
  • Delta lambda controller > 0.10
 General:
  • O2S ceramic temp, >720° C
  • Heater control closed loop
CASE FUEL CUT OFF:
  • Electrical adjustment not active
  • Evap purge valve ready
CASE ELSE:
  • Lambda modulation > 0.20
  • Lambda control closed loop
IF STEPWISE CHANGE LAMBDA-SETPOINT
  • Commanded delta lambda step 0.10
 1.5...6.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P2243 O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1 Oxygen Sensors Front Open Circuit Nernst Voltage
  • O2S signal front < 0.20 V; > 4.70 V
  • Internal resistance > 950 Ohm
  • Heater control active
 20 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P2251 O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1 Oxygen Sensors Front Open Circuit Virtual Mass
  • O2S voltage signal front 1.47...1.53 V
  • Internal resistance > 950 Ohm
  • Modeled exhaust gas temp < 750° C
  • No fuel cutoff > 2 Sec
  • Heater control active
 25 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING 
P2270  O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2 Oxygen Sensors Rear Stuck Lean
  • Sensor voltage < 0.76 V
  • O2S rear; ready
  • Integrated exhaust gas mass after O2S rear ready >= 0.05 kg
  • Injection valve = commanded on
  • Engine running
  • IF
  • Integrated exhaust gas mass >= 3.50 kg
  • OR
  • Error suspicion; set
  • THEN
  • Enabling lambda ramp slope of the lambda ramp 0.05 1/ Sec
  • Target lambda of the lambda ramp 0.75
  • Exhaust gas mass during >= 0.10 kg
  • Target lambda reached <= 0.75
  • IF
  • Time fuel cut off > 3.0 Sec
  • Then Disabling For:
  • Time delay after fuel cut off 3.0 Sec
  • Additional Conditions:
  • Modeled exhaust gas 350...800° C
  • Engine speed 1, 000...4, 000 RPM
  • Mass air flow 20.00...150.00 kg/h
  • Within time 3.0 Sec
 30 Sec
  • Once/ DCY
  • 2 DCY
 -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING 
P2271  O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 2 Oxygen Sensors Rear Stuck Rich
  • Sensor voltage > 0.15 V
 General:
  • Integrated exhaust gas mass after O2S rear ready >= 0.05 kg
  • O2 rear ready
  • Injection valve commanded on
  • Engine running
CASE 2:
  • During fuel cut-off
  • Modeled exhaust gas temperature fitted position O2SD rear 350...800° C
  • O2S front lambda value > 4.00
  • Fuel cut-off active
  • Integrated O2 mass during fuel cut off >= 5.0 g
 30 Sec
  • Once/ DCY
  • 2 DCY
 -- Check the Oxygen Sensor 1 After Catalytic Converter -GX7-. Refer to Oxygen Sensor 1 After Catalytic Converter - GX7-, CHECKING 
P2279 Intake Air System Leak Leak to Intake Manifold adaptation value monitoring
  • Offset value throttle mass flow > 13 kg/h
  • Correction factor > 0.97
  • Desired mass flow 0...25 kg/h
  • ECT -48...143° C
  • EVAP purge valve closed
  • EGR off
 2.0 Sec
  • Multiple
  • 2 DCY
 Check for air leaks from intake manifold or vacuum ports, oil fill cap not seated or oil dipstick not seated in tube. Also any engine gaskets that can cause additional air to enter the crankcase can set this fault since the PCV system is not metered. If a vacuum leak or crankcase seal is at cause, the idle may be rough or unstable.
P2300 Ignition Coil "A" Primary Control Circuit Low Ignition Coils short to ground
  • Signal current > 24.0 mA
  • Engine speed > 680 RPM
 2 Sec
  • Continuous
  • 2 DCY
 -- Check the Ignition Coil -N152-. Refer to Ignition Coil -N152-, CHECKING .
P2301 Ignition Coil "A" Primary Control Circuit High Ignition Coils short to battery plus
  • Signal current > 5.1...7.0 V
  • Engine speed > 680 RPM
 2 Sec
  • Continuous
  • 2 DCY
 -- Check the Ignition Coil -N152-. Refer to Ignition Coil -N152-, CHECKING .
P2306 Ignition Coil "C" Primary Control Circuit Low Ignition Coils short to ground
  • Signal current > 24.0 mA
  • Engine speed > 680 RPM
 2 Sec
  • Continuous
  • 2 DCY
 -- Check the Ignition Coil with Power Output Stage -N291-. Refer to Ignition Coil -N152-, CHECKING .
P2307 Ignition Coil "C" Primary Control Circuit High Ignition Coils short to battery plus
  • Signal voltage > 5.1 - 7.0 V
  • Engine speed > 680 RPM
 2 Sec
  • Continuous
  • 2 DCY
 -- Check the Ignition Coil with Power Output Stage -N291-. Refer to Ignition Coil -N152-, CHECKING .
P240A EVAP System Leak Detection Pump Heater Control Circuit/Open Evap Leak Detection Pump Heater Circuit Open
  • Signal voltage > 4.7...5.4 V
  • EVAP pump heater commanded off.
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P240B EVAP System Leak Detection Pump Heater Control Circuit Low Evap Leak Detection Pump Heater Control Short to Ground
  • Signal voltage < 2.74...3.26 V
  • EVAP pump heater commanded off.
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P240C EVAP System Leak Detection Pump Heater Control Circuit High Evap Leak Detection Pump Heater Control Short to Battery Plus
  • Signal current > 2.2...4.0 A
  • EVAP pump heater commanded on.
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P2400 EVAP System Leak Detection Pump Control Circuit/Open Evap Leak Detection Pump Motor Circuit Open
  • Signal voltage > 4.7...5.4 V
  • EVAP pump electric drive Commanded off
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P2401 EVAP System Leak Detection Pump Control Circuit Low Evap Leak Detection Pump Motor Short to Ground
  • Signal voltage < 2.74...3.26 V
  • EVAP pump electric drive Commanded off
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P2402 EVAP System Leak Detection Pump Control Circuit High Evap Leak Detection Pump Motor Short to Battery Plus
  • Signal voltage at EVAP pump current measuring resistor > 4.00...1.80 V
  • EVAP pump electric drive Commanded On
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
P2407 EVAP System Leak Detection Pump Sense Circuit Intermittent/Erratic EVAP Leak Detection Pump Signal Check During Engine Off:
  • Fluctuation of EVAP pump current during reference measurement > 2.0 mA,
  • OR
  • Drop of evap pump current during pump phase > 6 mA.
  • For time >= 3 Sec
 During Engine Off:
  • ECT at start >= 4° C
  • Difference between ECT @ start and AAT <= 15.0 K
  • AAT < 35; > 4° C
  • Barometric Pressure > 73 kPa
  • Time since engine start in preceding DCY ≥ 600 s
  • Change in battery voltage during monitoring < 1.00 [V]
  • Engine off time >= 5.0 [s]
  • Vehicle speed 0 km/h
  • Evap purge adaptation < 5.00
  • Deviation of filtered evap pump current during reference measurement within range <= 2.0 mA
  • Change in relative evap pump current during monitoring < n.a.
  • Within time n.a.
  • During ECM keep alive-time after ignition off, max time < 900 Sec
  • Airbag not activated
During Engine Running:
  • ECT > 60° C
  • ECT @ start < 60° C
  • AAT < 35; > 4° C
  • Barometric Pressure > 73 kPa
  • Time since engine start >= 600.0 Sec
  • Integrated evap purge mass since last purge stop > 2.0 [g]
  • Integrated evap purge mass since last monitoring run > 0.0 [g]
  • Intake manifold vacuum > 10.00 kPa
  • Vehicle speed < 120; >= 0 km/h
  • delta vehicle speed <= 30 km/h
  • fuel volume flow <= 5.00 [ml/s]
  • Change in battery voltage during monitoring < 1.50 [V]
  • At least one leak detection monitor during engine off = preceding
  • Engine = not idle
  • Engine speed > 30 RPM
  • no fuel cut off
  • no gear shift
  • no engine stop
  • O2S front ready
 800 Sec
  • Once/DCY
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
During Engine Running:
  • Fluctuation of EVAP pump current during reference measurement > 3.0 mA,
  • OR
  • Drop of evap pump current during pump phase > 6 mA.
  • For time >= 3 Sec
 23.5 Sec
P2414 O2 Sensor Exhaust Sample Error Bank 1 Sensor 1 Oxygen Sensors front signal range check Threshold 1
  • Signal voltage 3.10...4.81 V
Threshold 2
  • Signal voltage 2.5...3.06 V
  • Depending on gain factor, that actual is used for sensor characteristic, the threshold is
  • Lambda set value < 1.6
  • O2S ceramic temp > 720° C
  • Fuel cut off, Not active
  • Heater control, closed loop
  • If low fuel signal then wait n.a.
  • Only AIR System
  • AIR not active
 15 Sec
  • Multiple
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING .
P2450 EVAP System Switching Valve Performance/Stuck Open EVAP Leak Detection Pump Signal Check During Engine Off:
  • EVAP pump current difference between reference measurement to idle <= 3 mA
 During Engine Off:
  • ECT at start >= 4° C
  • Difference between ECT @ start and AAT <= 15.0 K
  • AAT < 35; > 4° C
  • Barometric Pressure > 73 kPa
  • Time since engine start in preceding DCY ≥ 600 s
  • Change in battery voltage during monitoring < 1.00 [V]
  • Engine off time >= 5.0 [s]
  • Vehicle speed 0 km/h
  • Evap purge adaptation < 5.00
  • No sudden change in evap pump current (filling event) < 1.5; > -0.3 mA
  • Deviation of filtered evap pump current during reference measurement within range <= 2.0 mA
  • Change in relative evap pump current during monitoring < n.a.
  • Within time n.a.
  • During ECM keep alive-time after ignition off, max time < 900 Sec
  • Airbag not activated
During Engine Running:
  • ECT > 60° C
  • ECT @ start < 60° C
  • AAT < 35; > 4° C
  • Barometric Pressure > 73 kPa
  • Time since engine start >= 600.0 Sec
  • Integrated evap purge mass since last purge stop > 2.0 [g]
  • Integrated evap purge mass since last monitoring run > 0.0 [g]
  • Intake manifold vacuum > 10.00 kPa
  • Vehicle speed < 120; >= 0 km/h
  • delta vehicle speed <= 30 km/h
  • fuel volume flow <= 5.00 [ml/s]
  • Change in battery voltage during monitoring < 1.50 [V]
  • At least one leak detection monitor during engine off = preceding
  • Engine = not idle
  • Engine speed > 30 RPM
  • no fuel cut off
  • no gear shift
  • no engine stop
  • O2S front ready
 13.5 Sec
  • Once/DCY
  • 2 DCY
 -- Check the Leak Detection Pump (LDP) -V144-. Refer to Leak Detection Pump - V144-, CHECKING .
During Engine Running:
  • EVAP pump current difference between reference measurement to idle <= 3 mA
 6.5 Sec
P2626 O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1 Oxygen Sensor Front Open Circuit Adjustment Voltage
  • O2S voltage signal front > 4.81 V
  • Modeled exhaust gas temp < 750° C
  • O2S ceramic temp > 720° C
  • Fuel cut off, Active
  • Heater control closed loop
  • If low fuel signal then wait n.a.
 1.5 Sec
  • Continuous
  • 2 DCY
 -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING .
P3081 Engine Temperature Too Low Engine Coolant Temperature Sensor rationality check
  • Difference between reference model temperature and measured ECT > 10.5 K
 --- 4 Sec
  • Continuous
  • 2 DCY
 Check for a stuck open thermostat. Refer to the service information. If thermostat is OK: -- Check the Engine Coolant Temperature (ECT) Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING .
U0001 High Speed CAN Communication Bus CAN: Powertrain BUS reading back sent message
  • Message = no feedback
  • Time after ignition on > 500 mS
 0.25 Sec
  • Continuous
  • 2 DCY
 -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING .
U0002 High Speed CAN Communication Bus Performance COM: Powertrain Bus communication check
  • Global Time Out; receiving no messages
  • Time after ignition on > 500 mS
 0.45 Sec
  • Continuous
  • 2 DCY
 -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING .
U0101 Lost Communication with TCM COM: Transmission Control Module (TCM) communication with TCM
  • Received message; no message
  • Time after ignition on > 500 mS
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the CAN-Bus. Refer to CAN-BUS TERMINAL RESISTANCE, Transmission Control Module - J217- TO Engine Control Module - J623-, CHECKING .
U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module COM: Brake System Control Module (BSCM) communication with BSCM
  • Received message; no message
  • Time after ignition on > 500 mS
 0.5 Sec
  • Continuous
  • 2 DCY
 Check to see if any other modules have set a loss of communication with the ABS module fault. If other modules can communicate with ABS and ECM cannot, the ECM may be at fault. If other modules have set an ABS communication error, refer to the service information for the ABS communication diagnosis.
U0146 Lost Communication With Gateway "A" COM: Gateway communication with Gateway
  • Received message; no message
  • Time after ignition on > 500 mS
 0.5 Sec
  • Continuous
  • 2 DCY
 -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING .
U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module COM: Instrument Panel Cluster (IPC) communication with IPC
  • Received message; no message
  • Time after ignition on > 500 mS
 2.0 Sec
  • Continuous
  • 2 DCY
 Check the IPC power and ground inputs. Check the CAN Bus for an open or high resistance at the IPC connector. Refer to the appropriate wiring diagram.
U0302 Software Incompatibility With Transmission Control Module COM: Transmission Control Module (TCM) communication with TCM
  • Received AT vehicle data TCM signal
  • Time after ignition on > 500 mS
 5.0 Sec
  • Continuous
  • 2 DCY
 Check for any applicable TSB's. If none pertain to this fault reflash ECM with correct software for application.
U0402 Invalid Data Received From TCM COM: Transmission Control Module (TCM) communication with TCM
  • Received data; implausible message
  • Time after ignition on > 500 mS
 0.3 Sec
  • Continuous
  • 2 DCY
 Check the CAN bus. Refer to CAN-BUS TERMINAL RESISTANCE, Transmission Control Module - J217- TO Engine Control Module - J623-, CHECKING 
U0415 Invalid Data Received From Anti-Lock Brake System (ABS) Control Module Vehicle Speed Sensor out of range high
  • Vehicle speed > 325 km/h
  • Speed sensor initialization error 327.08 km/h
  • Speed sensor signal low voltage error 327.25 km/h
  • Speed sensor signal: error out of range 326.39 km/h
  • Received message Implausible messages from ABS
  • Speed sensor signal: sensor error 327.42 km/h
  • Time after ignition on 500 ms
 400 to 2100 ms
  • Continuous
  • 2 DCY
 Refer to the service information for ABS diagnosis.
U0423 Invalid Data Received From Instrument Panel Cluster Control Module COM: Ambient Air Temperature (AAT) Sensor communication with IPC
  • AAT value (initialization) 00h
  • Ignition on
  • Status AAT from instrument cluster no fault
  • Electrical check AAT sensor no fault
 3.0 Sec
  • Continuous
  • 2 DCY
 -- Replace the Instrument Panel Cluster. Refer to the appropriate service information.
COM: Instrument Panel Cluster (IPC) communication with IPC
  • Received data; implausible message
  • Time after ignition on > 500mS
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