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Diagnostic Trouble Code Chart

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DIAGNOSTIC TROUBLE CODE CHART

DTC Code Detection Item Trouble Area MIL Memory
P0010  Camshaft Position "A" Actuator Circuit (Bank 1)
  1. Open or short in Oil Control Valve (OCV) (bank 1) circuit
  2. Oil Control Valve (OCV) (bank 1)
  3. ECM
 Comes on DTC stored
P0011  Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)
  1. Oil Control Valve (OCV)
  2. Valve timing
  3. OCV filter
  4. Camshaft timing tube assembly
  5. ECM
 Comes on DTC stored
P0012  Camshaft Position "A" - Timing Over-Retarded (Bank 1) Same as P0011 Comes on DTC stored
P0016  Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
  1. Mechanical system (jumped tooth of timing belt, belt stretched)
  2. ECM
 Comes on DTC stored
P0018  Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A) Same as P0016 Comes on DTC stored
P0020  Camshaft Position "A" Actuator Circuit (Bank 2)
  1. Open or short in OCV (bank 2) circuit
  2. OCV (bank 2)
  3. ECM
 Comes on DTC stored
P0021  Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2) Same as P0011 Comes on DTC stored
P0022  Camshaft Position "A" - Timing Over-Retarded (Bank 2) Same as P0011 Comes on DTC stored
P0031  Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)
  1. Open in Air Fuel Ratio (A/F) sensor (bank 1 sensor 1) heater circuit
  2. Air Fuel Ratio(A/F) sensor heater (bank 1 sensor 1)
  3. A/F relay
  4. ECM
 Comes on DTC stored
P0032  Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor D
  1. Short in A/F sensor (bank 1 sensor 1) heater circuit
  2. A/F sensor heater (bank 1 sensor 1)
  3. A/F 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. Heated Oxygen (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  Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1)
  1. Open in A/F sensor (bank 2 sensor 1) heater circuit
  2. A/F sensor heater (bank 2 sensor 1)
  3. A/F relay
  4. ECM
 Comes on DTC stored
P0052  Oxygen (A/F) Sensor Heater Control Circuit High (Bank 2 Sensor 1)
  1. Short in A/F sensor (bank 2 sensor 1) heater circuit
  2. A/F sensor heater (bank 2 sensor 1)
  3. A/F 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 n HO2 sensor heater circuit
  2. HO2 sensor heater (bank 2 sensor 2)
  3. EFI relay
  4. ECM
 Comes on DTC stored
P0100  Mass Air Flow Circuit Malfunction
  1. Open or short in Mass Air Flow (MAF) meter circuit
  2. Mass Air Flow (MAF) meter
  3. ECM
 Comes on DTC stored
P0101  Mass Air Flow Circuit Range / Performance Problem
  1. Mass Air Flow (MAF) meter
 Comes on DTC stored
P0102  Mass Air Flow Circuit Low
  1. Open in MAF meter circuit
  2. Short in ground circuit
  3. MAF meter
  4. ECM
 Comes on DTC stored
P0103  Mass Air Flow Circuit High
  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. Intake Air Temperature (IAT) sensor (built into MAF meter)
  3. ECM
 Comes on DTC stored
P0111  Intake Air Temperature Sensor Gradient Too High Mass air flow meter 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. Engine Coolant Temperature (ECT) sensor
  3. ECM
 Comes on DTC stored
P0116  Engine Coolant Temperature Circuit Range / Performance Problem
  1. Cooling system
  2. Engine Coolant Temperature (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
  1. Throttle Position (TP) sensor (built into throttle body)
 Comes on DTC stored
P0122  Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input
  1. Throttle Position (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. Throttle Position (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. Engine Coolant Temperature (ECT) sensor
  2. Cooling system
  3. Thermostat
 Comes on DTC stored
P0128  Thermostat Malfunction
  1. Thermostat
  2. Cooling system
  3. Engine Coolant Temperature (ECT) sensor
  4. ECM
 Comes on DTC stored
P0136  Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
  1. Open or short in Heated Oxygen (HO2) sensor circuit
  2. Heated Oxygen (HO2) sensor (bank 1 sensor 2)
  3. Heated Oxygen (HO2) sensor heater (bank 1 sensor 2)
  4. Air Fuel Ratio (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
P0141  Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
  1. Open or short in HO2 sensor heater circuit
  2. HO2 sensor heater (bank 1 sensor 2)
  3. EFI relay
  4. ECM
 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
P0161  Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
  1. Open or short in HO2 sensor heater circuit
  2. HO2 sensor heater (bank 2 sensor 2)
  3. EFI relay
  4. ECM
 Comes on DTC stored
P0171  System Too Lean (Bank 1)
  1. Air induction system
  2. Injector blockage
  3. Mass Air Flow (MAF) meter
  4. Engine Coolant Temperature (ECT) sensor
  5. Fuel pressure
  6. Gas leakage in exhaust system
  7. Open or short in Air Fuel Ratio (A/F) sensor(bank 1 sensor 1)
  8. Air Fuel Ratio (A/F) sensor(bank 1 sensor 1)
  9. Air Fuel Ratio (A/F) sensor heater (bank 1 sensor 1)
  10. A/F relay
  11. A/F sensor heater and A/F relay circuits
  12. Ventilation hose connections
  13. Ventilation 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 in 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 relay
  11. A/F sensor heater and A/F 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 in 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 relay
  11. A/F sensor heater and A/F relay circuits
  12. Ventilation hose connections
  13. Ventilation 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 in exhaust system
  7. Open or short in N 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 relay
  11. A/F sensor heater and A/F relay circuits
  12. ECM
 Comes on DTC stored
P0220  Throttle / Pedal Position Sensor / Switch "B" Circuit
  1. Throttle Position (TP) sensor (built into throttle body)
  2. ECM
 Comes on DTC stored
P0222  Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input
  1. Throttle Position (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. Throttle Position (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
P0230  Fuel Pump Primary Circuit
  1. Open or short in fuel pump relay circuit
  2. Fuel pump relay
  3. ECM
 - DTC stored
P0300  Random / Multiple Cylinder Misfire Detected
  1. Open or short in engine wire harness
  2. Connector connection
  3. Vacuum hose connection
  4. Ignition system
  5. Fuel injector
  6. Fuel pressure
  7. Mass Air Flow (MAF) meter
  8. Engine Coolant Temperature (ECT) sensor
  9. Compression pressure
  10. Valve clearance
  11. Valve timing
  12. Ventilation hose connections
  13. Ventilation valve and hose
  14. ECM
 Comes on/ Blinks* DTC stored
P0301  Cylinder 1 Misfire Detected Same as P0300 Comes on/ Blinks* DTC stored
P0302  Cylinder 2 Misfire Detected Same as P0300 Comes on/ Blinks* DTC stored
P0303  Cylinder 3 Misfire Detected Same as P0300 Comes on/ Blinks* DTC stored
P0304  Cylinder 4 Misfire Detected Same as P0300 Comes on/ Blinks* DTC stored
P0305  Cylinder 5 Misfire Detected Same as P0300 Comes on/ Blinks* DTC stored
P0306  Cylinder 6 Misfire Detected Same as P0300 Comes on/ Blinks* DTC stored
P0307  Cylinder 7 Misfire Detected Same as P0300 Comes on/ Blinks* DTC stored
P0308  Cylinder 8 Misfire Detected Same as P0300 Comes on/ Blinks* DTC stored
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 (CKP) sensor circuit
  2. Crankshaft position (CKP) sensor
  3. Signal Plate (crankshaft position sensor plate)
  4. ECM
 Comes on DTC stored
P0339  Crankshaft Position Sensor "A" Circuit Intermittent
  1. Open or short in crankshaft position (CKP) sensor circuit
  2. Crankshaft position (CKP) sensor
  3. Signal plate (crankshaft position sensor plate)
  4. ECM
 - DTC stored
P0340  Camshaft Position Sensor Circuit Malfunction
  1. Open or short in VVT sensor circuit
  2. VVT sensor
  3. Intake camshaft
  4. Timing belt has a jumped tooth
  5. ECM
 Comes on DTC stored
P0345  Camshaft Position Sensor "A" Circuit (Bank 2) Same as P0340 Comes on DTC stored
P0351  Ignition Coil "A" Primary / Secondary Circuit
  1. Open or short in IGF1 or IGT1 circuit between No. 1 ignition coil and ECM
  2. No. 1 ignition coil (primary ignition)
  3. Ignition system
  4. ECM
 Comes on DTC stored
P0352  Ignition Coil "B" Primary / Secondary Circuit
  1. Open or short in IGF2 or IGT2 circuit between No. 2 ignition coil and ECM
  2. No. 2 ignition coil (primary ignition)
  3. Ignition system
  4. ECM
 Comes on DTC stored
P0353  Ignition Coil "C" Primary / Secondary Circuit
  1. Open or short in IGF2 or IGT3 circuit between No. 3 ignition coil and ECM
  2. No. 3 ignition coil (primary ignition)
  3. Ignition system
  4. ECM
 Comes on DTC stored
P0354  Ignition Coil "D" Primary / Secondary Circuit
  1. Open or short in IGF1 or IGT4 circuit between No. 4 ignition coil and ECM
  2. No. 4 ignition coil (primary ignition)
  3. Ignition system
  4. ECM
 Comes on DTC stored
P0355  Ignition Coil "E" Primary / Secondary Circuit
  1. Open or short in IGF2 or IGT5 circuit between No. 5 ignition coil and ECM
  2. No. 5 ignition coil (primary ignition)
  3. Ignition system
  4. ECM
 Comes on DTC stored
P0356  Ignition Coil "F" Primary / Secondary Circuit
  1. Open or short in IGF1 or IGT6 circuit between No. 6 ignition coil and ECM
  2. No. 6 ignition coil (primary ignition)
  3. Ignition system
  4. ECM
 Comes on DTC stored
P0357  Ignition Coil "G" Primary / Secondary Circuit
  1. Open or short in IGF1 or IGT7 circuit between No. 7 ignition coil and ECM
  2. No. 7 ignition coil (primary ignition)
  3. Ignition system
  4. ECM
 Comes on DTC stored
P0358  Ignition Coil "H" Primary / Secondary Circuit
  1. Open or short in IGF2 or IGT8 circuit between No. 8 ignition coil and ECM
  2. No. 8 ignition coil (primary ignition)
  3. Ignition system
  4. ECM
 Comes on DTC stored
P0412  Secondary Air Injection System Switching Valve "A" Circuit
  1. Open in air switching valve drive circuit
  2. Short between air switching valve circuit and +B circuit
  3. Short between air switching valve circuit and body ground
  4. Air injection control driver
  5. Air switching valve
  6. ECM
 Comes on DTC stored
P0418  Secondary Air Injection System Control "A" Circuit
  1. Open in air pump drive circuit
  2. Short between air pump circuit and +B circuit
  3. Short between air pump circuit and body ground
  4. Air injection control driver
  5. Air pump
  6. ECM
 Comes on DTC stored
P0420  Catalyst System Efficiency Below Threshold (Bank 1)
  1. Gas leakage from exhaust system
  2. Air Fuel Ratio (A/F) sensor(bank 1 sensor 1)
  3. Heated Oxygen (HO2) sensor (bank 1 sensor 2)
  4. Three-way catalytic converter
 Comes on DTC stored
P0430  Catalyst System Efficiency Below Threshold (Bank 2)
  1. Gas leakage on exhaust system
  2. A/F sensor (bank 2 sensor 1)
  3. HO2 sensor (bank 2 sensor 2)
  4. Three-way catalytic converter
 Comes on DTC stored
P043E  Evaporative Emission System Reference Orifice Clog Up
  1. Canister pump module (reference orifice, leak detection pump, vent valve)
  2. Connector/wire harness (canister pump module - ECM)
  3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  4. ECM
 Comes on DTC stored
P043F  Evaporative Emission System Reference Orifice High Flow
  1. Canister pump module (reference orifice, leak detection pump, vent valve)
  2. Connector/wire harness (canister pump module - ECM)
  3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  4. ECM
 Comes on DTC stored
P0441  Evaporative Emission Control System Incorrect Purge Flow
  1. Purge VSV
  2. Connector/wire harness (purge VSV - ECM)
  3. Canister pump module
  4. Leakage from EVAP system
  5. Leakage from EVAP line (purge VSV - intake manifold)
  6. ECM
 Comes on DTC stored
P0450  Evaporative Emission Control System Pressure Sensor Malfunction
  1. Canister pump module
  2. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  3. ECM
 Comes on DTC stored
P0451  Evaporative Emission Control System Pressure Sensor Range / Performance
  1. Canister pump module
  2. Connector/wire harness (canister pump module - ECM)
  3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  4. ECM
 Comes on DTC stored
P0452  Evaporative Emission Control System Pressure Sensor / Switch Low Input
  1. Canister pump module
  2. Connector/wire harness (canister pump module - ECM)
  3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  4. ECM
 Comes on DTC stored
P0453  Evaporative Emission Control System Pressure Sensor / Switch High Input
  1. Canister pump module
  2. Connector/wire harness (canister pump module - ECM)
  3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  4. ECM
 Comes on DTC stored
P0455  Evaporative Emission Control System Leak Detected (Gross Leak)
  1. Fuel cap (loose)
  2. Leakage from EVAP line (canister - fuel tank)
  3. Leakage from EVAP line (purge VSV - canister)
  4. Canister pump module
  5. Leakage from canister
 Comes on DTC stored
P0456  Evaporative Emission Control System Leak Detected (Very Small Leak)
  1. Fuel cap (loose)
  2. Leakage from EVAP line (canister - fuel tank)
  3. Leakage from EVAP line (purge VSV - canister)
  4. Canister pump module
  5. Leakage from canister
 Comes on DTC stored
P0500  Vehicle Speed Sensor "A"
  1. Combination meter
  2. Open or short in vehicle speed sensor circuit
  3. Vehicle speed sensor
  4. Skid control ECU
  5. ECM
 - DTC stored
P0504  Brake Switch "A" / "B" Correlation
  1. Short in stop light switch signal circuit
  2. STOP fuse
  3. Stop light switch assembly
  4. ECM
 - DTC stored
P0505  Idle Control System Malfunction
  1. ETCS
  2. Air induction system
  3. Ventilation hose connections
  4. ECM
 Comes on DTC stored
P0560  System Voltage
  1. Open in back-up power source circuit
  2. EFI fuse
  3. ECM
 Comes on DTC stored
P0604  Random Access Memory (RAM) ECM Comes on DTC stored
P0606  ECM/PCM Processor
  1. ECM
  2. Heated Oxygen (HO2) sensor (bank 1, 2 sensor 2)
 Comes on DTC stored
P0607  Control Module Performance ECM Comes on DTC stored
P0617  Starter Relay Circuit High
  1. Short in Park/ Neutral position (PNP) switch circuit
  2. Park/Neutral position switch
  3. Ignition switch
  4. ECM
 Comes on DTC stored
P0630  VIN not Programmed or Mismatch - ECM / PCM
  1. ECM
 Comes on DTC stored
P0657  Actuator Supply Voltage Circuit / Open ECM Comes on DTC stored
P1340  Camshaft Position Sensor "A" (Bank 1 Sensor 2)
  1. Open or short in camshaft position sensor circuit
  2. Camshaft position sensor
  3. Camshaft timing pulley LH
  4. ECM
 Comes on DTC stored
P1440  Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 1
  1. Open or short in VSV for air injection control system (bank 1)
  2. VSV power source
  3. VSV for air injection system (bank 1)
  4. ECM
 Comes on DTC stored
P1441  Stuck Open in Secondary Air Injection Vacuum Switching Valve Bank 1
  1. VSV for air injection control system (bank 1)
  2. No. 2 air switching valve (bank 1)
  3. VSV for air injection system (bank 1)
  4. ECM
 Comes on DTC stored
P1442  Stuck Close in Secondary Air Injection Vacuum Switching Valve Bank 1
  1. VSV for air injection system circuit (bank 1)
  2. Vacuum hose (VSV for air injection system - No. 2 air switching valve)
  3. Air injector pipe (No. 2 air switching valve - exhaust manifold)
  4. No. 2 air switching valve (bank 1)
  5. VSV for air injection system (bank 1)
  6. ECM
 Comes on DTC stored
P1443  Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 2
  1. Open or short in VSV for air injection system circuit (bank 2)
  2. VSV power source
  3. VSV for air injection system (bank 2)
  4. ECM
 Comes on DTC stored
P1444  Stuck Open in Secondary Air Injection Vacuum Switching Valve Bank 2
  1. VSV for air injection system circuit (bank 2)
  2. No. 2 air switching valve (bank 2)
  3. VSV for air injection system (bank 2)
  4. ECM
 Comes on DTC stored
P1445  Stuck Close in Secondary Air Injection Vacuum Switching Valve Bank 2
  1. VSV for air injection system circuit (bank 2)
  2. Vacuum hose (VSV for air injection system - No. 2 air switching valve)

  1. 4. Air injection pipe (No. 2 air switching valve - exhaust manifold)
  2. 5. No. 2 air switching valve (bank 2)
  3. 6. VSV for air injection system (bank 2)
  4. 7. ECM
 Comes on DTC stored
P1613  Secondary Air Injection Driver Malfunction
  1. Air injection control driver (AID)
  2. Open in air injection control driver ground circuit
  3. Open or short in diagnostic information signal circuit (AID - ECM)
  4. Open or short in air pump and air switching valve command signal circuit (AID - ECM)
  5. Open or short in AID power source circuit
  6. 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 valve
  3. Throttle body
 Comes on DTC stored
P2112  Throttle Actuator Control System - Stuck Closed Same as 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. APP sensor
  2. ECM
 Comes on DTC stored
P2122  Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input
  1. APP sensor
  2. Open in VCP1 circuit
  3. Open or ground short VPA1 circuit
  4. ECM
 Comes on DTC stored
P2123  Throttle / Pedal Position Sensor / Switch "D" Circuit High Input
  1. APP sensor
  2. Open in EPA circuit
  3. ECM
 Comes on DTC stored
P2125  Throttle / Pedal Position Sensor / Switch "E" Circuit
  1. APP sensor
  2. ECM
 Comes on DTC stored
P2127  Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input
  1. APP sensor
  2. Open in VCP2 circuit
  3. Open or ground short VPA2 circuit
  4. ECM
 Comes on DTC stored
P2128  Throttle / Pedal Position Sensor / Switch "E" Circuit High Input
  1. 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 circuit
  2. Throttle Position (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 VTA1 and VPA2 circuits
  2. APP sensor
  3. ECM
 Comes on DTC stored
P2195  Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1)
  1. Open or short in Air Fuel Ratio (A/F) sensor(bank 1 sensor 1) circuit
  2. Air Fuel Ratio (A/F) sensor(bank 1 sensor 1)
  3. Air Fuel Ratio (A/F) sensor heater (bank 1 sensor 1)
  4. A/F relay
  5. A/F sensor heater and relay circuits
  6. Air induction system
  7. Fuel pressure
  8. Fuel injector
  9. ECM
 Comes on DTC stored
P2196  Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) Same as P2195 Comes on DTC stored
P2197  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 relay
  5. A/F sensor heater and relay circuits
  6. Air induction system
  7. Fuel pressure
  8. Fuel injector
  9. ECM
 Comes on DTC stored
P2198  Oxygen (A/F) Sensor Signal Stuck Rich (Bank 2 Sensor 1) Same as P2197 Comes on DTC stored
P2237  Oxygen (A/F) Sensor Pumping Current Circuit / Open (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. ECM
 Comes on DTC stored
P2238  Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1)
  1. Open or short in Air Fuel Ratio (A/F) sensor(bank 1 sensor 1) circuit
  2. Air Fuel Ratio (A/F) sensor(bank 1 sensor 1)
  3. Air Fuel Ratio (A/F) sensor heater (bank 1 sensor 1)
  4. A/F relay
  5. A/F sensor heater and relay circuits
  6. ECM
 Comes on DTC stored
P2239  Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1) Same as P2238 Comes on DTC stored
P2240  Oxygen (A/F) Sensor Pumping Current Circuit / Open (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
P2241  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 relay
  5. A/F sensor heater and relay circuit
  6. ECM
 Comes on DTC stored
P2242  Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 2 Sensor 1) Same as P2241 Comes on DTC stored
P2252  Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1) Same as P2238 Comes on DTC stored
P2253  Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1) Same as P2238 Comes on DTC stored
P2255  Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 2 Sensor 1) Same as P2241 Comes on DTC stored
P2256  Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 2 Sensor 1) Same as P2241 Comes on DTC stored
P2401  Evaporative Emission Leak Detection Pump Stuck OFF
  1. Canister pump module (reference orifice, leak detection pump, vent valve)

  1. 3. Connector/wire harness (canister pump module - ECM)
  2. 3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  3. 4. ECM
 Comes on DTC stored
P2402  Evaporative Emission Leak Detection Pump Stuck ON
  1. Canister pump module (reference orifice, leak detection pump, vent valve)

  1. 3. Connector/wire harness (canister pump module - ECM)
  2. 3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  3. 4. ECM
 Comes on DTC stored
P2419  Evaporative Emission System Switching Valve Control Circuit Low
  1. Canister pump module (reference orifice, leak detection pump, vent valve)

  1. 3. Connector/wire harness (canister pump module - ECM)
  2. 3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  3. 4. ECM
 Comes on DTC stored
P2420  Evaporative Emission System Switching Valve Control Circuit High
  1. Canister pump module (reference orifice, leak detection pump, vent valve)
  2. Connector/wire harness (canister pump module - ECM)
  3. ECM
 Comes on DTC stored
P2430  Secondary Air Injection System Air Flow / Pressure Sensor Circuit Bank 1
  1. Pressure sensor
  2. Open or short in pressure sensor circuit
  3. ECM
 Comes on DTC stored
P2431  Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance Bank 1
  1. Pressure sensor
  2. Open or short in pressure sensor circuit
  3. ECM
 Comes on DTC stored
P2432  Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low Bank 1
  1. Pressure sensor
  2. Open or short in pressure sensor circuit
  3. ECM
 Comes on DTC stored
P2433  Secondary Air Injection System Air Flow / Pressure Sensor Circuit High Bank 1
  1. Pressure sensor
  2. Open or short in pressure sensor circuit
  3. ECM
 Comes on DTC stored
P2440  Secondary Air Injection System Switching Valve Stuck Open Bank 1
  1. Air switching valve
  2. No. 2 air switching valve (bank 1 and/or 2)
  3. VSV for air injection system (bank 1 and/or 2)
  4. Air injection control driver
  5. Air injection control driver circuit
  6. ECM
 Comes on DTC stored
P2441  Secondary Air Injection System Switching Valve Stuck Close Bank 1
  1. Vacuum hoses (throttle body - VSVs for air injection system)
  2. Air switching valve
  3. Air injection pipe (No. 2 air switching valve - exhaust manifold)
  4. Air injection hose
  5. No. 2 air switching valve (bank 1 and/or 2)
  6. VSV for air injection system (bank 1 and/or 2)
  7. Air injection control driver
  8. Air injection control driver circuit
  9. ECM
 Comes on DTC stored
P2444  Secondary Air Injection System Pump Stuck On Bank 1
  1. Short in air pump circuit
  2. Pressure sensor
  3. Air injection control driver
  4. Open or short in pressure sensor circuit
  5. ECM
 Comes on DTC stored
P2445  Secondary Air Injection System Pump Stuck Off Bank 1
  1. Air pump fuse
  2. Vacuum hose
  3. Air pump assembly
  4. Air injection control driver
  5. Open in air pump circuit
  6. Air injection system piping
  7. Pressure sensor
  8. Open or short in pressure sensor circuit
  9. ECM
 Comes on DTC stored
P2610  ECM / PCM Internal Engine Off Timer Performance
  1. ECM
 Comes on DTC stored
P2A00  A/F Sensor Circuit Slow Response (Bank 1 Sensor 1)
  1. Open or short in Air Fuel Ratio (A/F) sensor(bank 1 sensor 1) circuit
  2. Air Fuel Ratio (A/F) sensor(bank 1 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
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