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Diagnostic Trouble Code Chart

HINT:

The parameters listed in the chart may not conform exactly to those read during the DTC check due to the type of instrument or other factors.

If a trouble code is displayed during the DTC check in the check mode, check the circuit for the code listed in the table below. For details of each code, refer to the "See" in the DTC chart.

SFI SYSTEM 

DIAGNOSTIC TROUBLE CODE CHART

DTC No. Detection Item Suspected Trouble Area MIL Memory
P0010  Camshaft Position "A" Actuator Circuit (Bank 1)
  1. Open or short in Oil Control Valve (OCV) circuit for intake camshaft
  2. OCV for intake camshaft (bank 1)
  3. ECM
 Comes on DTC stored
P0011  Camshaft Position "A" - Timing Over- Advanced or System Performance (Bank 1)
  1. Valve timing
  2. OCV for intake camshaft
  3. OCV filter
  4. Intake camshaft timing gear assembly
  5. ECM
 Comes on DTC stored
P0012  Camshaft Position "A" - Timing Over-Retarded (Bank 1) Same as DTC P0011 Comes on DTC stored
P0013  Camshaft Position "B" Actuator Circuit / Open (Bank 1)
  1. Open or short in Oil Control Valve (OCV) circuit for exhaust camshaft
  2. OCV for exhaust camshaft (bank 1)
  3. ECM
 Comes on DTC stored
P0014  Camshaft Position "B" - Timing Over- Advanced or System Performance (Bank 1)
  1. Valve timing
  2. OCV for exhaust camshaft
  3. OCV filter
  4. Exhaust camshaft timing gear assembly
  5. ECM
 Comes on DTC stored
P0015  Camshaft Position "B" - Timing Over-Retarded (Bank 1) Same as DTC P0014 Comes on DTC stored
P0016  Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
  1. Mechanical system (Timing chain has jumped teeth or chain is stretched)
  2. ECM
 Comes on DTC stored
P0017  Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B) Same as DTC P0016 Comes on DTC stored
P0018  Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A) Same as DTC P0016 Comes on DTC stored
P0019  Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B) Same as DTC P0016 Comes on DTC stored
P0020  Camshaft Position "A" Actuator Circuit (Bank 2)
  1. Open or short in Oil Control Valve (OCV) circuit for intake camshaft
  2. OCV for intake camshaft (bank 2)
  3. ECM
 Comes on DTC stored
P0021  Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2) Same as DTC P0011 Comes on DTC stored
P0022  Camshaft Position "A" - Timing Over-Retarded (Bank 2) Same as DTC P0011 Comes on DTC stored
P0023  Camshaft Position "B" Actuator Circuit / Open (Bank 2)
  1. Open or short in Oil Control Valve circuit (OCV) for exhaust camshaft
  2. OCV for exhaust camshaft (bank 2)
  3. ECM
 Comes on DTC stored
P0024  Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 2) Same as DTC P0014 Comes on DTC stored
P0025  Camshaft Position "B" - Timing Over-Retarded (Bank 2) Same as DTC P0014 Comes on DTC stored
P0031 (1) Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)
  1. Open in Air-Fuel Ratio (A/F) sensor heater circuit
  2. A/F sensor heater (bank 1 sensor 1)
  3. A/F sensor heater relay
  4. ECM
 Comes on DTC stored
P0032 (1) Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
  1. Short in A/F sensor heater circuit
  2. A/F sensor heater (bank 1 sensor 1)
  3. A/F sensor heater relay
  4. ECM
 Comes on DTC stored
P0037  Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2)
  1. Open in Heated Oxygen (HO2) sensor heater circuit
  2. HO2 sensor heater (bank 1 sensor 2)
  3. EFI relay
  4. ECM
 Comes on DTC stored
P0038  Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)
  1. Short in HO2 sensor heater circuit
  2. HO2 sensor heater (bank 1 sensor 2)
  3. EFI relay
  4. ECM
 Comes on DTC stored
P0051 (1) Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1)
  1. Open in A/F sensor heater circuit
  2. A/F sensor heater (bank 2 sensor 1)
  3. A/F sensor heater relay
  4. ECM
 Comes on DTC stored
P0052 (1) Oxygen (A/F) Sensor Heater Control Circuit High (Bank 2 Sensor 1)
  1. Short in A/F sensor heater circuit
  2. A/F sensor heater (bank 2 sensor 1)
  3. A/F sensor heater relay
  4. ECM
 Comes on DTC stored
P0057  Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 2)
  1. Open in HO2 sensor heater circuit
  2. HO2 sensor heater (bank 2 sensor 2)
  3. EFI relay
  4. ECM
 Comes on DTC stored
P0058  Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 2)
  1. Short in HO2 sensor heater circuit
  2. HO2 sensor heater (bank 2 sensor 2)
  3. EFI relay
  4. ECM
 Comes on DTC stored
P0100  Mass or Volume Air Flow Circuit
  1. Open or short in Mass Air Flow (MAF) meter circuit
  2. MAF meter
  3. ECM
 Comes on DTC stored
P0101  Mass or Volume Air Flow Circuit Range / Performance Problem MAF meter Comes on DTC stored
P0102  Mass or Volume Air Flow Circuit Low Input
  1. Open in MAF meter circuit
  2. Short in ground circuit
  3. MAF meter
  4. ECM
 Comes on DTC stored
P0103  Mass or Volume Air Flow Circuit High Input
  1. Short in MAF meter circuit (+B circuit)
  2. MAF meter
  3. ECM
 Comes on DTC stored
P0110  Intake Air Temperature Circuit
  1. Open or short in Intake Air Temperature (IAT) sensor circuit
  2. IAT sensor (built into Mass Air Flow [MAF] meter)
  3. ECM
 Comes on DTC stored
P0112  Intake Air Temperature Circuit Low Input
  1. Short in IAT sensor circuit
  2. IAT sensor (built into MAF meter)
  3. ECM
 Comes on DTC stored
P0113  Intake Air Temperature Circuit High Input
  1. Open in IAT sensor circuit
  2. IAT sensor (built into MAF meter)
  3. ECM
 Comes on DTC stored
P0115  Engine Coolant Temperature Circuit
  1. Open or short in Engine Coolant Temperature (ECT) sensor circuit
  2. ECT sensor
  3. ECM
 Comes on DTC stored
P0116  Engine Coolant Temperature Circuit Range / Performance Problem ECT sensor Comes on DTC stored
P0117  Engine Coolant Temperature Circuit Low Input
  1. Short in ECT sensor circuit
  2. ECT sensor
  3. ECM
 Comes on DTC stored
P0118  Engine Coolant Temperature Circuit High Input
  1. Open in ECT sensor circuit
  2. ECT sensor
  3. ECM
 Comes on DTC stored
P0120  Throttle / Pedal Position Sensor / Switch "A" Circuit
  1. Throttle Position (TP) sensor (built into throttle body)
  2. ECM
 Comes on DTC stored
P0121  Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem TP sensor (built into throttle body) Comes on DTC stored
P0122  Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input
  1. TP sensor (built into throttle body)
  2. Short in VTA1 circuit
  3. Open in VC circuit
  4. ECM
 Comes on DTC stored
P0123  Throttle / Pedal Position Sensor / Switch "A" Circuit High Input
  1. TP sensor (built into throttle body)
  2. Open in VTA1 circuit
  3. Open in E2 circuit
  4. Short between VC and VTA1 circuits
  5. ECM
 Comes on DTC stored
P0125  Insufficient Coolant Temperature for Closed Loop Fuel Control
  1. Cooling system
  2. ECT sensor
  3. Thermostat
 Comes on DTC stored
P0128  Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
  1. Thermostat
  2. Cooling system
  3. ECT sensor
  4. ECM
 Comes on DTC stored
P0136  Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
  1. Open or short in HO2 sensor (bank 1 sensor 2) circuit
  2. HO2 sensor (bank 1 sensor 2)
  3. HO2 sensor heater (bank 1 sensor 2)
  4. A/F sensor (bank 1 sensor 1)
  5. EFI relay
  6. Gas leakage from exhaust system
 Comes on DTC stored
P0137  Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2)
  1. Open in HO2 sensor (bank 1 sensor 2) circuit
  2. HO2 sensor (bank 1 sensor 2)
  3. HO2 sensor heater (bank 1 sensor 2)
  4. EFI relay
  5. Gas leakage from exhaust system
 Comes on DTC stored
P0138  Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)
  1. Short in HO2 sensor (bank 1 sensor 2) circuit
  2. HO2 sensor (bank 1 sensor 2)
  3. ECM internal circuit malfunction
 Comes on DTC stored
P0156  Oxygen Sensor Circuit Malfunction (Bank 2 Sensor 2)
  1. Open or short in HO2 sensor (bank 2 sensor 2) circuit
  2. HO2 sensor (bank 2 sensor 2)
  3. HO2 sensor heater (bank 2 sensor 2)
  4. A/F sensor (bank 2 sensor 1)
  5. EFI relay
  6. Gas leakage from exhaust system
 Comes on DTC stored
P0157  Oxygen Sensor Circuit Low Voltage (Bank 2 Sensor 2)
  1. Open in HO2 sensor (bank 2 sensor 2) circuit
  2. HO2 sensor (bank 2 sensor 2)
  3. HO2 sensor heater (bank 2 sensor 2)
  4. EFI relay
  5. Gas leakage from exhaust system
 Comes on DTC stored
P0158  Oxygen Sensor Circuit High Voltage (Bank 2 Sensor 2)
  1. Short in HO2 sensor (bank 2 sensor 2) circuit
  2. HO2 sensor (bank 2 sensor 2)
  3. ECM internal circuit malfunction
 Comes on DTC stored
P0171  System Too Lean (Bank 1)
  1. Air induction system
  2. Injector blockage
  3. MAF meter
  4. ECT sensor
  5. Fuel pressure
  6. Gas leakage from exhaust system
  7. Open or short in A/F sensor (bank 1 sensor 1) circuit
  8. A/F sensor (bank 1 sensor 1)
  9. A/F sensor heater (bank 1 sensor 1)
  10. A/F sensor heater relay
  11. A/F sensor heater and A/F sensor heater relay circuits
  12. PCV hose connections
  13. PCV valve and hose
  14. ECM
 Comes on DTC stored
P0172  System Too Rich (Bank 1)
  1. Injector leakage or blockage
  2. MAF meter
  3. ECT sensor
  4. Ignition system
  5. Fuel pressure
  6. Gas leakage from exhaust system
  7. Open or short in A/F sensor (bank 1 sensor 1) circuit
  8. A/F sensor (bank 1 sensor 1)
  9. A/F sensor heater (bank 1 sensor 1)
  10. A/F sensor heater relay
  11. A/F sensor heater and A/F sensor heater relay circuits
  12. ECM
 Comes on DTC stored
P0174  System Too Lean (Bank 2)
  1. Air induction system
  2. Injector blockage
  3. MAF meter
  4. ECT sensor
  5. Fuel pressure
  6. Gas leakage from exhaust system
  7. Open or short in A/F sensor (bank 2 sensor 1) circuit
  8. A/F sensor (bank 2 sensor 1)
  9. A/F sensor heater (bank 2 sensor 1)
  10. A/F sensor heater relay
  11. A/F sensor heater and A/F sensor heater relay circuits
  12. PCV hose connections
  13. PCV valve and hose
  14. ECM
 Comes on DTC stored
P0175  System Too Rich (Bank 2)
  1. Injector leakage or blockage
  2. MAF meter
  3. ECT sensor
  4. Ignition system
  5. Fuel pressure
  6. Gas leakage from exhaust system
  7. Open or short in A/F sensor (bank 2 sensor 1) circuit
  8. A/F sensor (bank 2 sensor 1)
  9. A/F sensor heater (bank 2 sensor 1)
  10. A/F sensor heater relay
  11. A/F sensor heater and A/F sensor heater relay circuits
  12. ECM
 Comes on DTC stored
P0220  Throttle / Pedal Position Sensor / Switch "B" Circuit
  1. TP sensor (built into throttle body)
  2. ECM
 Comes on DTC stored
P0222  Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input
  1. TP sensor (built into throttle body)
  2. Short in VTA2 circuit
  3. Open in VC circuit
  4. ECM
 Comes on DTC stored
P0223  Throttle / Pedal Position Sensor / Switch "B" Circuit High Input
  1. TP sensor (built into throttle body)
  2. Open in VTA2 circuit
  3. Open in E2 circuit
  4. Short between VC and VTA2 circuits
  5. ECM
 Comes on DTC stored
P0300 Random / Multiple Cylinder Misfire Detected
  1. Open or short in engine wire harness
  2. Connector connections
  3. Vacuum hose connection
  4. Ignition system
  5. Injector
  6. Fuel pressure
  7. Mass Air Flow (MAF) meter
  8. Engine Coolant Temperature (ECT) sensor
  9. Cylinder compression
  10. Valve clearance
  11. Valve timing
  12. PCV hose connection
  13. PCV hose
  14. ECM
  15. Air induction system
 Comes on or flashes
P0301 Cylinder 1 Misfire Detected Same as DTC P0300 Comes on or flashes
P0302 Cylinder 2 Misfire Detected Same as DTC P0300 Comes on or flashes
P0303 Cylinder 3 Misfire Detected Same as DTC P0300 Comes on or flashes
P0304 Cylinder 4 Misfire Detected Same as DTC P0300 Comes on or flashes
P0305 Cylinder 5 Misfire Detected Same as DTC P0300 Comes on or flashes
P0306 Cylinder 6 Misfire Detected Same as DTC P0300 Comes on or flashes
P0327  Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
  1. Short in knock sensor 1 circuit
  2. Knock sensor 1
  3. ECM
 Comes on DTC stored
P0328  Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
  1. Open in knock sensor 1 circuit
  2. Knock sensor 1
  3. ECM
 Comes on DTC stored
P0332  Knock Sensor 2 Circuit Low Input (Bank 2)
  1. Short in knock sensor 2 circuit
  2. Knock sensor 2
  3. ECM
 Comes on DTC stored
P0333  Knock Sensor 2 Circuit High Input (Bank 2)
  1. Open in knock sensor 2 circuit
  2. Knock sensor 2
  3. ECM
 Comes on DTC stored
P0335  Crankshaft Position Sensor "A" Circuit
  1. Open or short in Crankshaft Position Sensor (CKP) circuit
  2. CKP sensor
  3. Sensor plate (CKP sensor plate)
  4. ECM
 Comes on DTC stored
P0339  Crankshaft Position Sensor "A" Circuit Intermittent Same as DTC P0335 Does not come on DTC stored
P0340  Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)
  1. Open or short in VVT sensor circuit for intake camshaft
  2. VVT sensor for intake camshaft
  3. Camshaft timing pulley
  4. Jumped teeth of timing chain
  5. ECM
 Comes on DTC stored
P0342  Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor) Same as DTC P0340 Comes on DTC stored
P0343  Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor) Same as DTC P0340 Comes on DTC stored
P0345  Camshaft Position Sensor "A" Circuit (Bank 2) Same as DTC P0340 Comes on DTC stored
P0347  Camshaft Position Sensor "A" Circuit Low Input (Bank 2) Same as DTC P0340 Comes on DTC stored
P0348  Camshaft Position Sensor "A" Circuit High Input (Bank 2) Same as DTC P0340 Comes on DTC stored
P0351 (2) Ignition Coil "A" Primary / Secondary Circuit
  1. Ignition system
  2. Open or short in IGF1 or IGT circuit (1 to 6) between ignition coil with igniter and ECM
  3. No. 1 to No. 6 ignition coils with igniters
  4. ECM
 Comes on DTC stored
P0352 (2) Ignition Coil "B" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC stored
P0353 (2) Ignition Coil "C" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC stored
P0354 (2) Ignition Coil "D" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC stored
P0355 (2) Ignition Coil "E" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC stored
P0356 (2) Ignition Coil "F" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC stored
P0365  Camshaft Position Sensor "B" Circuit (Bank 1)
  1. Open or short in VVT sensor for exhaust camshaft circuit
  2. VVT sensor for exhaust camshaft
  3. Exhaust camshaft
  4. ECM
 Comes on DTC stored
P0367  Camshaft Position Sensor "B" Circuit Low Input (Bank 1)
  1. Open or short in VVT sensor for exhaust camshaft circuit
  2. VVT sensor for exhaust camshaft
  3. Exhaust camshaft
  4. Jumped teeth of timing chain
  5. ECM
 Comes on DTC stored
P0368  Camshaft Position Sensor "B" Circuit High Input (Bank 1)
  1. Open or short in VVT sensor for exhaust camshaft circuit
  2. VVT sensor for exhaust camshaft
  3. Exhaust camshaft
  4. Jumped teeth of timing chain
  5. ECM
 Comes on DTC stored
P0390  Camshaft Position Sensor "B" Circuit (Bank 2)
  1. Open or short in VVT sensor for exhaust camshaft circuit
  2. VVT sensor for exhaust camshaft
  3. Exhaust camshaft
  4. ECM
 Comes on DTC stored
P0392  Camshaft Position Sensor "B" Circuit Low Input (Bank 2)
  1. Open or short in VVT sensor for exhaust camshaft circuit
  2. VVT sensor for exhaust camshaft
  3. Exhaust camshaft
  4. Jumped teeth of timing belt
  5. ECM
 Comes on DTC stored
P0393  Camshaft Position Sensor "B" Circuit High Input (Bank 2)
  1. Open or short in VVT sensor for exhaust camshaft circuit
  2. VVT sensor for exhaust camshaft
  3. Exhaust camshaft
  4. Jumped teeth of timing belt
  5. ECM
 Comes on DTC stored
P0420  Catalyst System Efficiency Below Threshold (Bank 1)
  1. Gas leakage from exhaust system
  2. A/F sensor (bank 1 sensor 1)
  3. HO2 sensor (bank 1 sensor 2)
  4. Exhaust manifold (Three-Way Catalytic Converter [TWC])
 Comes on DTC stored
P0430  Catalyst System Efficiency Below Threshold (Bank 2)
  1. Gas leakage from exhaust system
  2. A/F sensor (bank 2 sensor 1)
  3. HO2 sensor (bank 2 sensor 2)
  4. Exhaust manifold (Three-Way Catalytic Converter [TWC])
 Comes on DTC stored
P043E  Evaporative Emission System Reference Orifice Clog Up
  1. Pump module
  2. Connector / wire harness (between pump module and ECM)
  3. Leakage from EVAP system
  4. ECM
 Comes on DTC stored
P043F  Evaporative Emission System Reference Orifice High Flow
  1. Pump module
  2. Connector / wire harness (between pump module and ECM)
  3. Leakage from EVAP system
  4. ECM
 Comes on DTC stored
P0441  Evaporative Emission Control System Incorrect Purge Flow
  1. Purge VSV
  2. Purge VSV circuit (between purge VSV and ECM)
  3. Leakage from EVAP line (between purge VSV and intake manifold)
  4. EVAP line clogged (between purge VSV and canister)
  5. ECM
 Comes on DTC stored
P0450  Evaporative Emission Control System Pressure Sensor / Switch
  1. Pump module (including pressure sensor)
  2. ECM
 Comes on DTC stored
P0451  Evaporative Emission Control System Pressure Sensor Range / Performance
  1. Pump module (including pressure sensor)
  2. Connector / wire harness (between pump module and ECM)
  3. ECM
 Comes on DTC stored
P0452  Evaporative Emission Control System Pressure Sensor / Switch Low Input
  1. Pump module (including pressure sensor)
  2. Connector / wire harness (between pump module and ECM)
  3. ECM
 Comes on DTC stored
P0453  Evaporative Emission Control System Pressure Sensor / Switch High Input
  1. Pump module (include pressure sensor)
  2. Connector / wire harness (between pump module and ECM)
  3. ECM
 Comes on DTC stored
P0455  Evaporative Emission Control System Leak Detected (Gross Leak)
  1. Fuel tank cap (loose)
  2. Leakage from EVAP line (between canister and fuel tank)
  3. Leakage from EVAP line (between purge VSV and canister)
  4. Leakage from pump module
  5. Leakage from fuel tank
  6. Leakage from canister
 Comes on DTC stored
P0456  Evaporative Emission Control System Leak Detected (Very Small Leak) Same as DTC P0455 Comes on DTC stored
P0500  Vehicle Speed Sensor "A"
  1. Open or short in speed sensor circuit
  2. Speed sensor
  3. Combination meter
  4. ECM
  5. Skid control ECU
 Comes on DTC stored
P0504  Brake Switch "A" / "B" Correlation
  1. Short in stop light switch signal circuit
  2. STOP fuse
  3. Stop light switch
  4. ECM
 Does not come on DTC stored
P0505  Idle Control System Malfunction
  1. ETCS (Electronic Throttle Control System)
  2. Air induction system
  3. PCV hose connection
  4. ECM
 Comes on DTC stored
P0560  System Voltage
  1. Open in back up power source circuit
  2. EFI No. 1 fuse
  3. ECM
 Comes on DTC stored
P0604  Internal Control Module Random Access Memory (RAM) Error ECM Comes on DTC stored
P0606  ECM / PCM Processor ECM Comes on DTC stored
P0607  Control Module Performance ECM Comes on DTC stored
P0617 Starter Relay Circuit High
  1. Park / Neutral Position (PNP) switch
  2. Starter relay circuit
  3. Ignition switch
  4. ECM
 Comes on DTC stored
P0630  VIN not Programmed or Mismatch - ECM / PCM ECM Comes on DTC stored
P0657  Actuator Supply Voltage Circuit / Open ECM Comes on DTC stored
P2102  Throttle Actuator Control Motor Circuit Low
  1. Open in throttle actuator circuit
  2. Throttle actuator
  3. ECM
 Comes on DTC stored
P2103  Throttle Actuator Control Motor Circuit High
  1. Short in throttle actuator circuit
  2. Throttle actuator
  3. Throttle valve
  4. Throttle body
  5. ECM
 Comes on DTC stored
P2111  Throttle Actuator Control System - Stuck Open
  1. Throttle actuator
  2. Throttle body
  3. Throttle valve
 Comes on DTC stored
P2112  Throttle Actuator Control System - Stuck Closed Same as DTC P2111 Comes on DTC stored
P2118  Throttle Actuator Control Motor Current Range / Performance
  1. Open in ETCS power source circuit
  2. ETCS fuse
  3. ECM
 Comes on DTC stored
P2119  Throttle Actuator Control Throttle Body Range / Performance
  1. ETCS
  2. ECM
 Comes on DTC stored
P2120  Throttle / Pedal Position Sensor / Switch "D" Circuit
  1. Accelerator Pedal Position (APP) sensor
  2. ECM
 Comes on DTC stored
P2121  Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
  1. Accelerator Pedal Position (APP) sensor
  2. ECM
 Comes on DTC stored
P2122  Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input
  1. Accelerator Pedal Position (APP) sensor
  2. Open in VCP1 circuit
  3. Open or ground short in VPA circuit
  4. ECM
 Comes on DTC stored
P2123  Throttle / Pedal Position Sensor / Switch "D" Circuit High Input
  1. Accelerator Pedal Position (APP) sensor
  2. Open in EPA circuit
  3. ECM
 Comes on DTC stored
P2125  Throttle / Pedal Position Sensor / Switch "E" Circuit
  1. Accelerator Pedal Position (APP) sensor
  2. ECM
 Comes on DTC stored
P2127  Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input
  1. Accelerator Pedal Position (APP) sensor
  2. Open in VCP2 circuit
  3. Open or ground short in VPA2 circuit
  4. ECM
 Comes on DTC stored
P2128  Throttle / Pedal Position Sensor / Switch "E" Circuit High Input
  1. Accelerator Pedal Position (APP) sensor
  2. Open in EPA2 circuit
  3. ECM
 Comes on DTC stored
P2135  Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
  1. Short between VTA1 and VTA2 circuits
  2. TP sensor (built into throttle body)
  3. ECM
 Comes on DTC stored
P2138  Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
  1. Short between VPA and VPA2 circuits
  2. APP sensor
  3. ECM
 Comes on DTC stored
P2195 (1) Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1)
  1. Open or short in A/F sensor (bank 1 sensor 1) circuit
  2. A/F sensor (bank 1 sensor 1)
  3. A/F sensor heater (bank 1 sensor 1)
  4. A/F sensor heater relay
  5. A/F sensor heater and relay circuits
  6. Air induction system
  7. Fuel pressure
  8. Injector
  9. ECM
 Comes on DTC stored
P2196 (1) Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) Same as DTC P2195 Comes on DTC stored
P2197 (1) Oxygen (A/F) Sensor Signal Stuck Lean (Bank 2 Sensor 1)
  1. Open or short in A/F sensor (bank 2 sensor 1) circuit
  2. A/F sensor (bank 2 sensor 1)
  3. A/F sensor heater (bank 2 sensor 1)
  4. A/F sensor heater relay
  5. A/F sensor heater and relay circuits
  6. Air induction system
  7. Fuel pressure
  8. Injector
  9. ECM
 Comes on DTC stored
P2198 (1) Oxygen (A/F) Sensor Signal Stuck Rich (Bank 2 Sensor 1) Same as DTC P2197 Comes on DTC stored
P2238 (1) Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1)
  1. Open or short in A/F sensor (bank 1 sensor 1) circuit
  2. A/F sensor (bank 1 sensor 1)
  3. A/F sensor heater (bank 1 sensor 1)
  4. A/F sensor heater relay
  5. A/F sensor heater and relay circuits
  6. ECM
 Comes on DTC stored
P2239 (1) Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1) Same as DTC P2238 Comes on DTC stored
P2241 (1) Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 2 Sensor 1)
  1. Open or short in A/F sensor (bank 2 sensor 1) circuit
  2. A/F sensor (bank 2 sensor 1)
  3. A/F sensor heater (bank 2 sensor 1)
  4. A/F sensor heater relay
  5. A/F sensor heater and relay circuits
  6. ECM
 Comes on DTC stored
P2242 (1) Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 2 Sensor 1) Same as DTC P2241 Comes on DTC stored
P2252 (1) Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1) Same as DTC P2238 Comes on DTC stored
P2253 (1) Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1) Same as DTC P2238 Comes on DTC stored
P2255 (1) Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 2 Sensor 1) Same as DTC P2241 Comes on DTC stored
P2256 (1) Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 2 Sensor 1) Same as DTC P2241 Comes on DTC stored
P2401  Evaporative Emission System Leak Detection Pump Control Circuit Low
  1. Pump module
  2. Connector / wire harness (between pump module and ECM)
  3. ECM
  4. Leakage from EVAP system
 Comes on DTC stored
P2402  Evaporative Emission System Leak Detection Pump Control Circuit High
  1. Pump module
  2. Connector / wire harness (between pump module and ECM)
  3. ECM
 Comes on DTC stored
P2419  Evaporative Emission System Switching Valve Control Circuit Low
  1. Pump module
  2. Connector / wire harness (between pump module and ECM)
  3. ECM
 Comes on DTC stored
P2420  Evaporative Emission System Switching Valve Control Circuit High
  1. Pump module
  2. Connector / wire harness (between pump module and ECM)
  3. ECM
  4. Leakage from EVAP system
 Comes on DTC stored
P2610  ECM / PCM Internal Engine Off Timer Performance ECM Comes on DTC stored
P2A00  A/F Sensor Circuit Slow Response (Bank 1 Sensor 1)
  1. Open or short in A/F sensor (bank 1 sensor 1) circuit
  2. A/F sensor (bank1 sensor 1)
  3. ECM
 Comes on DTC stored
P2A03  A/F Sensor Circuit Slow Response (Bank 2 Sensor 1)
  1. Open or short in A/F sensor (bank 2 sensor 1) circuit
  2. A/F sensor (bank 2 sensor 1)
  3. ECM
 Comes on DTC stored
(1) This DTC is related to the A/F sensor, although the caption in the detection item column refers to it as the heated oxygen sensor.
(2) This DTC indicates a malfunction related to the primary circuit.
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