2011 Lexus ES 350FACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code Table

HINT: 

Parameters listed in the chart may not be exactly the same as your readings due to the type of instrument or other factors.

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the reference below.

SFI SYSTEM:

DTC Code Detection Item Suspected Trouble Area MIL Memory Reference
P0010 Camshaft Position "A" Actuator Circuit (Bank 1) Open or short in Oil Control Valve (OCV) for intake camshaft (bank 1) circuit
OCV for intake camshaft (bank 1)
ECM		 Comes on DTC stored Refer to DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1)
P0011 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1) Valve timing
Oil Control Valve (OCV) for intake camshaft (bank 1)
OCV filter (bank 1)
Intake camshaft timing gear assembly (bank 1)
5. ECM		 Comes on DTC stored Refer to DTC P0011: Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)
P0012 Camshaft Position "A" - Timing Over-Retarded (Bank 1) Valve timing
OCV for intake camshaft (bank 1)
OCV filter (bank 1)
Intake camshaft timing gear assembly (bank 1)
ECM		 Comes on DTC stored Refer to DTC P0012: Camshaft Position "A" - Timing Over-Retarded (Bank 1)
P0013 Camshaft Position "B" Actuator Circuit/Open (Bank 1) Open or short in OCV for exhaust camshaft (bank 1) circuit
OCV for exhaust camshaft (bank 1)
ECM		 Comes on DTC stored Refer to DTC P0013: Camshaft Position "B" Actuator Circuit/Open (Bank 1)
P0014 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1) Valve timing
OCV for exhaust camshaft (bank 1)
OCV filter (bank 1)
Exhaust camshaft timing gear assembly (bank 1)
ECM		 Comes on DTC stored Refer to DTC P0014: Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1)
P0015 Camshaft Position "B" - Timing Over-Retarded (Bank 1) Valve timing
OCV for exhaust camshaft (bank 1)
OCV filter (bank 1)
Exhaust camshaft timing gear assembly (bank 1)
ECM		 Comes on DTC stored Refer to DTC P0015: Camshaft Position "B" - Timing Over-Retarded (Bank 1)
P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) Valve timing
OCV for intake camshaft (bank 1)
OCV filter (bank 1)
Intake camshaft timing gear assembly (bank 1)
ECM		 Comes on DTC stored Refer to DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
P0017 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B) Valve timing
OCV for exhaust camshaft (bank 1)
OCV filter (bank 1)
Exhaust camshaft timing gear assembly (bank 1)
ECM		 Comes on DTC stored Refer to DTC P0017: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)
P0018 Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A) Valve timing
OCV for intake camshaft (bank 2)
OCV filter (bank 2)
Intake camshaft timing gear assembly (bank 2)
ECM		 Comes on DTC stored Refer to DTC P0018: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)
P0019 Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B) Valve timing
OCV for exhaust camshaft (bank 2)
OCV filter (bank 2)
Exhaust camshaft timing gear assembly (bank 2)
ECM		 Comes on DTC stored Refer to DTC P0019: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)
P0020 Camshaft Position "A" Actuator Circuit (Bank 2) Open or short in Oil Control Valve (OCV) for intake camshaft (bank 2) circuit
OCV for intake camshaft (bank 2)
ECM		 Comes on DTC stored Refer to DTC P0020: Camshaft Position "A" Actuator Circuit (Bank 2)
P0021 Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2) Valve timing
Oil Control Valve (OCV) for intake camshaft (bank 2)
OCV filter (bank 2)
Intake camshaft timing gear assembly (bank 2)
ECM		 Comes on DTC stored Refer to DTC P0021: Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 2)
P0022 Camshaft Position "A" - Timing Over-Retarded (Bank 2) Valve timing
OCV for intake camshaft (bank 2)
OCV filter (bank 2)
Intake camshaft timing gear assembly (bank 2)
ECM		 Comes on DTC stored Refer to DTC P0022: Camshaft Position "A" - Timing Over-Retarded (Bank 2)
P0023 Camshaft Position "B" Actuator Circuit/Open (Bank 2) Open or short in OCV for exhaust camshaft (bank 2) circuit
OCV for exhaust camshaft (bank 2)
ECM		 Comes on DTC stored Refer to DTC P0023: Camshaft Position "B" Actuator Circuit/Open (Bank 2)
P0024 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 2) Valve timing
OCV for exhaust camshaft (bank 2)
OCV filter (bank 2)
Exhaust camshaft timing gear assembly (bank 2)
ECM		 Comes on DTC stored Refer to DTC P0024: Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 2)
P0025 Camshaft Position "B" - Timing Over-Retarded (Bank 2) Valve timing
OCV for exhaust camshaft (bank 2)
OCV filter (bank 2)
Exhaust camshaft timing gear assembly (bank 2)
ECM		 Comes on DTC stored Refer to DTC P0025: Camshaft Position "B" - Timing Over-Retarded (Bank 2)
P0031 Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) Open in A/F sensor heater circuit (bank 1 sensor 1)
A/F sensor heater (bank 1 sensor 1)
A/F sensor heater relay
ECM		 Comes on DTC stored Refer to DTC P0031: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)
P0032 Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1) Short in A/F sensor heater circuit (bank 1 sensor 1)
A/F sensor heater (bank 1 sensor 1)
A/F sensor heater relay
ECM		 Comes on DTC stored Refer to DTC P0032: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
P0037 Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2) Open in HO2 sensor heater circuit (bank 1 sensor 2)
HO2 sensor heater (bank 1 sensor 2)
Engine room junction block (EFI relay)
ECM		 Comes on DTC stored Refer to DTC P0037: Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2)
P0038 Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2) Short in HO2 sensor heater circuit (bank 1 sensor 2)
HO2 sensor heater (bank 1 sensor 2)
Engine room junction block (EFI relay)
ECM		 Comes on DTC stored Refer to DTC P0038: Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)
P0051 Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1) Open in A/F sensor heater circuit (bank 2 sensor 1)
A/F sensor heater (bank 2 sensor 1)
A/F sensor heater relay
ECM		 Comes on DTC stored Refer to DTC P0051: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1)
P0052 Oxygen (A/F) Sensor Heater Control Circuit High (Bank 2 Sensor 1) Short in A/F sensor heater circuit (bank 2 sensor 1)
A/F sensor heater (bank 2 sensor 1)
A/F sensor heater relay
ECM		 Comes on DTC stored Refer to DTC P0052: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 2 Sensor 1)
P0057 Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 2) Open in HO2 sensor heater circuit (bank 2 sensor 2)
HO2 sensor heater (bank 2 sensor 2)
Engine room junction block (EFI relay)
ECM		 Comes on DTC stored Refer to DTC P0057: Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 2)
P0058 Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 2) Short in HO2 sensor heater circuit (bank 2 sensor 2)
HO2 sensor heater (bank 2 sensor 2)
Engine room junction block (EFI relay)
ECM		 Comes on DTC stored Refer to DTC P0058: Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 2)
P0101 Mass Air Flow Circuit Range/Performance Problem Mass Air Flow (MAF) meter
Air induction system
PCV hose connections		 Comes on DTC stored Refer to DTC P0101: Mass Air Flow Circuit Range/Performance Problem
P0102 Mass or Volume Air Flow Circuit Low Input Open in MAF meter circuit
Short in MAF meter circuit
MAF meter
ECM		 Comes on DTC stored Refer to DTC P0102: Mass or Volume Air Flow Circuit Low Input
P0103 Mass or Volume Air Flow Circuit High Input Short in MAF meter circuit (+B circuit)
MAF meter
ECM		 Comes on DTC stored Refer to DTC P0103: Mass or Volume Air Flow Circuit High Input
P0111 Intake Air Temperature Sensor Gradient Too High MAF meter Comes on DTC stored Refer to DTC P0111: Intake Air Temperature Sensor Gradient Too High
P0112 Intake Air Temperature Circuit Low Input Short in IAT sensor circuit
IAT sensor (built into MAF meter)
ECM		 Comes on DTC stored Refer to DTC P0112: Intake Air Temperature Circuit Low Input
P0113 Intake Air Temperature Circuit High Input Open in IAT sensor circuit
IAT sensor (built into MAF meter)
ECM		 Comes on DTC stored Refer to DTC P0113: Intake Air Temperature Circuit High Input
P0115 Engine Coolant Temperature Circuit Malfunction Open or short in ECT sensor circuit
ECT sensor
ECM		 Comes on DTC stored Refer to DTC P0115: Engine Coolant Temperature Circuit Malfunction
P0116 Engine Coolant Temperature Circuit Range/Performance Problem Thermostat
ECT sensor		 Comes on DTC stored Refer to DTC P0116: Engine Coolant Temperature Circuit Range/Performance Problem
P0117 Engine Coolant Temperature Circuit Low Input Short in ECT sensor circuit
ECT sensor
ECM		 Comes on DTC stored Refer to DTC P0117: Engine Coolant Temperature Circuit Low Input
P0118 Engine Coolant Temperature Circuit High Input Open in ECT sensor circuit
ECT sensor
ECM		 Comes on DTC stored Refer to DTC P0118: Engine Coolant Temperature Circuit High Input
P011B Engine Coolant Temperature/Intake Air Temperature Correlation IAT sensor
ECT sensor
ECM		 Comes on DTC stored Refer to DTC P011B: Engine Coolant Temperature/Intake Air Temperature Correlation
P0120 Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction Throttle position sensor (built into throttle body)
ECM		 Comes on DTC stored Refer to DTC P0120: Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction
P0121 Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem Throttle position sensor (built into throttle body)
Throttle position sensor circuit
ECM		 Comes on DTC stored Refer to DTC P0121: Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem
P0122 Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input Throttle position sensor (built into throttle body)
Short in VTA1 circuit
Open in VC circuit
ECM		 Comes on DTC stored Refer to DTC P0122: Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input
P0123 Throttle/Pedal Position Sensor/Switch "A" Circuit High Input Throttle position sensor (built into throttle body)
Open in VTA1 circuit
Open in E2 circuit
Short between VC and VTA1 circuits
ECM		 Comes on DTC stored Refer to DTC P0123: Throttle/Pedal Position Sensor/Switch "A" Circuit High Input
P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control Engine coolant temperature sensor
Cooling system
Thermostat		 Comes on DTC stored Refer to DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control
P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) Thermostat
Cooling system
ECT sensor
ECM		 Comes on DTC stored Refer to DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
P0136 Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2) Open or short in HO2 sensor (bank 1 sensor 2) circuit
HO2 sensor (bank 1 sensor 2)
HO2 sensor heater (bank 1 sensor 2)
A/F sensor (bank 1 sensor 1)
Engine room junction block (EFI relay)
Gas leakage from exhaust system		 Comes on DTC stored Refer to DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
P0137 Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2) Open in HO2 sensor (bank 1 sensor 2) circuit
HO2 sensor (bank 1 sensor 2)
HO2 sensor heater (bank 1 sensor 2)
Engine room junction block (EFI relay)
Gas leakage from exhaust system
Air fuel ratio sensor (bank 1 sensor 1)		 Comes on DTC stored Refer to DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2)
P0138 Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2) Short in HO2 sensor (bank 1 sensor 2) circuit
HO2 sensor (bank 1 sensor 2)
ECM internal circuit malfunction
A/F sensor (bank 1 sensor 1)		 Comes on DTC stored Refer to DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)
P0139 Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2) Short in HO2 sensor (bank 1 sensor 2)
HO2 sensor (bank 1 sensor 2)
ECM internal circuit malfunction		 Comes on DTC stored Refer to DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0141 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2) HO2 sensor heater (bank 1 sensor 2)
ECM		 Comes on DTC stored Refer to DTC P0141: Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P014C A/F Sensor Slow Response - Rich to Lean Bank 1 Sensor 1 Air fuel ratio sensor (bank 1 sensor 1)
Air fuel ratio sensor (bank 1 sensor 1) heater
ECM		 Comes on DTC stored Refer to DTC P014C: A/F Sensor Slow Response - Rich to Lean Bank 1 Sensor 1
P014D A/F Sensor Slow Response - Lean to Rich Bank 1 Sensor 1 Air fuel ratio sensor (bank 1 sensor 1)
Air fuel ratio sensor (bank 1 sensor 1) heater
ECM		 Comes on DTC stored Refer to DTC P014D: A/F Sensor Slow Response - Lean to Rich Bank 1 Sensor 1
P014E A/F Sensor Slow Response - Rich to Lean Bank 2 Sensor 1 Air fuel ratio sensor (bank 2 sensor 1)
Air fuel ratio sensor (bank 2 sensor 1) heater
ECM		 Comes on DTC stored Refer to DTC P014E: A/F Sensor Slow Response - Rich to Lean Bank 2 Sensor 1
P014F A/F Sensor Slow Response - Lean to Rich Bank 2 Sensor 1 Air fuel ratio sensor (bank 2 sensor 1)
Air fuel ratio sensor (bank 2 sensor 1) heater
ECM		 Comes on DTC stored Refer to DTC P014F: A/F Sensor Slow Response - Lean to Rich Bank 2 Sensor 1
P0156 Oxygen Sensor Circuit Malfunction (Bank 2 Sensor 2) Open or short in HO2 sensor (bank 2 sensor 2) circuit
HO2 sensor (bank 2 sensor 2)
HO2 sensor heater (bank 2 sensor 2)
A/F sensor (bank 2 sensor 1)
Engine room junction block (EFI relay)
Gas leakage from exhaust system		 Comes on DTC stored Refer to DTC P0156: Oxygen Sensor Circuit Malfunction (Bank 2 Sensor 2)
P0157 Oxygen Sensor Circuit Low Voltage (Bank 2 Sensor 2) Open in HO2 sensor (bank 2 sensor 2) circuit
HO2 sensor (bank 2 sensor 2)
HO2 sensor heater (bank 2 sensor 2)
Engine room junction block (EFI relay)
Gas leakage from exhaust system
Air fuel ratio sensor (bank 2 sensor 1)		 Comes on DTC stored Refer to DTC P0157: Oxygen Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0158 Oxygen Sensor Circuit High Voltage (Bank 2 Sensor 2) Short in HO2 sensor (bank 2 sensor 2) circuit
HO2 sensor (bank 2 sensor 2)
ECM internal circuit malfunction
A/F sensor (bank 2 sensor 1)		 Comes on DTC stored Refer to DTC P0158: Oxygen Sensor Circuit High Voltage (Bank 2 Sensor 2)
P0159 Oxygen Sensor Circuit Slow Response (Bank 2 Sensor 2) Short in HO2 sensor (bank 2 sensor 2)
HO2 sensor (bank 2 sensor 2)
ECM internal circuit malfunction		 Comes on DTC stored Refer to DTC P0159: Oxygen Sensor Circuit Slow Response (Bank 2 Sensor 2)
P015A A/F Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1 Air fuel ratio sensor (bank 1 sensor 1)
Air fuel ratio sensor (bank 1 sensor 1) heater
ECM		 Comes on DTC stored Refer to DTC P015A: A/F Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1
P015B A/F Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1 Air fuel ratio sensor (bank 1 sensor 1)
Air fuel ratio sensor (bank 1 sensor 1) heater
ECM		 Comes on DTC stored Refer to DTC P015B: A/F Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1
P015C A/F Sensor Delayed Response - Rich to Lean Bank 2 Sensor 1 Air fuel ratio sensor (bank 2 sensor 1)
Air fuel ratio sensor (bank 2 sensor 1) heater
ECM		 Comes on DTC stored DTC P015C: A/F Sensor Delayed Response - Rich to Lean Bank 2 Sensor 1
P015D A/F Sensor Delayed Response - Lean to Rich Bank 2 Sensor 1 Air fuel ratio sensor (bank 2 sensor 1)
Air fuel ratio sensor (bank 2 sensor 1) heater
ECM		 Comes on DTC stored Refer to DTC P015D: A/F Sensor Delayed Response - Lean to Rich Bank 2 Sensor 1
P0161 Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 2) HO2 sensor heater (bank 2 sensor 2)
ECM		 Comes on DTC stored Refer to DTC P0161: Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
P0171 System Too Lean (Bank 1) Air induction system
Injector blockage
MAF meter
ECT sensor
Fuel pressure
Gas leakage from exhaust system
Open or short in A/F sensor (bank 1 sensor 1) circuit
A/F sensor (bank 1 sensor 1)
A/F sensor heater (bank 1 sensor 1)
A/F sensor heater relay
A/F sensor heater and A/F sensor heater relay circuits
PCV valve and hose
PCV hose connections
ECM
Wire harness or connector		 Comes on DTC stored Refer to DTC P0171: System Too Lean (Bank 1)
P0172 System Too Rich (Bank 1) Injector leakage or blockage
MAF meter
ECT sensor
Ignition system
Fuel pressure
Gas leakage from exhaust system
Open or short in A/F sensor (bank 1 sensor 1) circuit
A/F sensor (bank 1 sensor 1)
A/F sensor heater (bank 1 sensor 1)
A/F sensor heater relay
A/F sensor heater and A/F sensor heater relay circuits
ECM
Wire harness or connector		 Comes on DTC stored Refer to DTC P0172: System Too Rich (Bank 1)
P0174 System Too Lean (Bank 2) Air induction system
Injector blockage
MAF meter
ECT sensor
Fuel pressure
Gas leakage from exhaust system
Open or short in A/F sensor (bank 2 sensor 1) circuit
A/F sensor (bank 2 sensor 1)
A/F sensor heater (bank 2 sensor 1)
A/F sensor heater relay
A/F sensor heater and A/F sensor heater relay circuits
PCV valve and hose
PCV hose connections
ECM
Wire harness or connector		 Comes on DTC stored Refer to DTC P0174: System Too Lean (Bank 2)
P0175 System Too Rich (Bank 2) Injector leakage or blockage
MAF meter
ECT sensor
Ignition system
Fuel pressure
Gas leakage from exhaust system
Open or short in A/F sensor (bank 2 sensor 1) circuit
A/F sensor (bank 2 sensor 1)
A/F sensor heater (bank 2 sensor 1)
A/F sensor heater relay
A/F sensor heater and A/F sensor heater relay circuits
ECM
Wire harness or connector		 Comes on DTC stored Refer to DTC P0175: System Too Rich (Bank 2)
P0220 Throttle/Pedal Position Sensor/Switch "B" Circuit Throttle position sensor (built into throttle body)
ECM		 Comes on DTC stored Refer to DTC P0220: Throttle/Pedal Position Sensor/Switch "B" Circuit
P0222 Throttle/Pedal Position Sensor/Switch "B" Circuit Low Input Throttle position sensor (built into throttle body)
Short in VTA2 circuit
Open in VC circuit
ECM		 Comes on DTC stored Refer to DTC P0222: Throttle/Pedal Position Sensor/Switch "B" Circuit Low Input
P0223 Throttle/Pedal Position Sensor/Switch "B" Circuit High Input Throttle position sensor (built into throttle body)
Open in VTA2 circuit
Open in E2 circuit
Short between VC and VTA2 circuits
ECM		 Comes on DTC stored Refer to DTC P0223: Throttle/Pedal Position Sensor/Switch "B" Circuit High Input
P0300 Random/Multiple Cylinder Misfire Detected Open or short in engine wire harness
Connector connections
Vacuum hose connections
Ignition system
Injector
Fuel pressure
MAF meter
ECT sensor
Compression pressure
Valve timing
PCV valve and hose
PCV hose connections
Air induction system
ECM		 Comes on/Blinks* DTC stored Refer to DTC P0300: Random/Multiple Cylinder Misfire Detected
P0301 Cylinder 1 Misfire Detected Open or short in engine wire harness
Connector connections
Vacuum hose connections
Ignition system
Injector
Fuel pressure
MAF meter
ECT sensor
Compression pressure
Valve timing
PCV valve and hose
PCV hose connections
Air induction system
ECM		 Comes on/Blinks* DTC stored Refer to DTC P0301: Cylinder 1 Misfire Detected
P0302 Cylinder 2 Misfire Detected Open or short in engine wire harness
Connector connections
Vacuum hose connections
Ignition system
Injector
Fuel pressure
MAF meter
ECT sensor
Compression pressure
Valve timing
PCV valve and hose
PCV hose connections
Air induction system
ECM		 Comes on/Blinks* DTC stored Refer to DTC P0302: Cylinder 2 Misfire Detecteded
P0303 Cylinder 3 Misfire Detected Open or short in engine wire harness
Connector connections
Vacuum hose connections
Ignition system
Injector
Fuel pressure
MAF meter
ECT sensor
Compression pressure
Valve timing
PCV valve and hose
PCV hose connections
Air induction system
ECM		 Comes on/Blinks* DTC stored Refer to DTC P0303: Cylinder 3 Misfire Detected
P0304 Cylinder 4 Misfire Detected Open or short in engine wire harness
Connector connections
Vacuum hose connections
Ignition system
Injector
Fuel pressure
MAF meter
ECT sensor
Compression pressure
Valve timing
PCV valve and hose
PCV hose connections
Air induction system
ECM		 Comes on/Blinks* DTC stored Refer to DTC P0304: Cylinder 4 Misfire Detected
P0305 Cylinder 5 Misfire Detected Open or short in engine wire harness
Connector connections
Vacuum hose connections
Ignition system
Injector
Fuel pressure
MAF meter
ECT sensor
Compression pressure
Valve timing
PCV valve and hose
PCV hose connections
Air induction system
ECM		 Comes on/ Blinks* DTC stored Refer to DTC P0305: Cylinder 5 Misfire Detected
P0306 Cylinder 6 Misfire Detected Open or short in engine wire harness
Connector connections
Vacuum hose connections
Ignition system
Injector
Fuel pressure
MAF meter
ECT sensor
Compression pressure
Valve timing
PCV valve and hose
PCV hose connections
Air induction system
ECM		 Comes on/Blinks* DTC stored Refer to DTC P0306: Cylinder 6 Misfire Detected
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) Short in knock sensor circuit (bank 1)
Knock sensor (bank 1)
ECM		 Comes on DTC stored Refer to DTC P0327: Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) Open in knock sensor circuit (bank 1)
Knock sensor (bank 1)
ECM		 Comes on DTC stored Refer to DTC P0328: Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0332 Knock Sensor 2 Circuit Low Input (Bank 2) Short in knock sensor circuit (bank 2)
Knock sensor (bank 2)
ECM		 Comes on DTC stored Refer to DTC P0332: Knock Sensor 2 Circuit Low Input (Bank 2)
P0333 Knock Sensor 2 Circuit High Input (Bank 2) Open in knock sensor circuit (bank 2)
Knock sensor (bank 2)
ECM		 Comes on DTC stored Refer to DTC P0333: Knock Sensor 2 Circuit High Input (Bank 2)
P0335 Crankshaft Position Sensor "A" Circuit Open or short in CKP sensor circuit
CKP sensor
CKP sensor plate
ECM		 Comes on DTC stored Refer to DTC P0335: Crankshaft Position Sensor "A" Circuit
P0339 Crankshaft Position Sensor "A" Circuit Intermittent Open or short in CKP sensor circuit
CKP sensor
CKP sensor plate
ECM		 Does not come on DTC stored Refer to DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent
P0340 Camshaft Position Sensor Circuit Malfunction Open or short in VVT sensor for intake side circuit
VVT sensor for intake side
Camshaft timing gear assembly for intake camshaft
ECM		 Comes on DTC stored Refer to DTC P0340: Camshaft Position Sensor Circuit Malfunction
P0342 Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor) Open or short in VVT sensor for intake side circuit
VVT sensor for intake side
Camshaft timing gear assembly for intake camshaft
ECM		 Comes on DTC stored Refer to DTC P0342: Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor)
P0343 Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor) Open or short in VVT sensor for intake side circuit
VVT sensor for intake side
Camshaft timing gear assembly for intake camshaft
ECM		 Comes on DTC stored Refer to DTC P0343: Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor)
P0345 Camshaft Position Sensor "A" Circuit (Bank 2) Open or short in VVT sensor for intake side circuit
VVT sensor for intake side
Camshaft timing gear assembly for intake camshaft
ECM		 Comes on DTC stored Refer to DTC P0345: Camshaft Position Sensor "A" Circuit (Bank 2)
P0347 Camshaft Position Sensor "A" Circuit Low Input (Bank 2) Open or short in VVT sensor for intake side circuit
VVT sensor for intake side
Camshaft timing gear assembly for intake camshaft
ECM		 Comes on DTC stored Refer to DTC P0347: Camshaft Position Sensor "A" Circuit Low Input (Bank 2)
P0348 Camshaft Position Sensor "A" Circuit High Input (Bank 2) Open or short in VVT sensor for intake side circuit
VVT sensor for intake side
Camshaft timing gear assembly for intake camshaft
ECM		 Comes on DTC stored Refer to DTC P0348: Camshaft Position Sensor "A" Circuit High Input (Bank 2)
P0351 Ignition Coil "A" Primary/Secondary Circuit Ignition system
Open or short in IGF1 or IGT1 circuit between ignition coil and ECM
No. 1 ignition coil
ECM		 Comes on DTC stored Refer to DTC P0351: Ignition Coil "A" Primary/Secondary Circuit
P0352 Ignition Coil "B" Primary/Secondary Circuit Ignition system
Open or short in IGF1 or IGT2 circuit between ignition coil and ECM
No. 2 ignition coil
ECM		 Comes on DTC stored Refer to DTC P0352: Ignition Coil "B" Primary/Secondary Circuit
P0353 Ignition Coil "C" Primary/Secondary Circuit Ignition system
Open or short in IGF1 or IGT3 circuit between ignition coil and ECM
No. 3 ignition coil
ECM		 Comes on DTC stored Refer to DTC P0353: Ignition Coil "C" Primary/Secondary Circuit
P0354 Ignition Coil "D" Primary/Secondary Circuit Ignition system
Open or short in IGF1 or IGT4 circuit between ignition coil and ECM
No. 4 ignition coil
ECM		 Comes on DTC stored Refer to DTC P0354: Ignition Coil "D" Primary/Secondary Circuit
P0355 Ignition Coil "E" Primary/Secondary Circuit Ignition system
Open or short in IGF1 or IGT5 circuit between ignition coil and ECM
No. 5 ignition coil
ECM		 Comes on DTC stored Refer to DTC P0355: Ignition Coil "E" Primary/Secondary Circuit
P0356 Ignition Coil "F" Primary/Secondary Circuit Ignition system
Open or short in IGF1 or IGT6 circuit between ignition coil and ECM
No. 6 ignition coil
ECM		 Comes on DTC stored Refer to DTC P0356: Ignition Coil "F" Primary/Secondary Circuit
P0365 Camshaft Position Sensor "B" Circuit (Bank 1) Open or short in VVT sensor for exhaust camshaft circuit
VVT sensor for exhaust camshaft
Exhaust camshaft
ECM		 Comes on DTC stored Refer to DTC P0365: Camshaft Position Sensor "B" Circuit (Bank 1)
P0367 Camshaft Position Sensor "B" Circuit Low Input (Bank 1) Open or short in VVT sensor for exhaust camshaft circuit
VVT sensor for exhaust camshaft
Exhaust camshaft
ECM		 Comes on DTC stored Refer to DTC P0367: Camshaft Position Sensor "B" Circuit Low Input (Bank 1)
P0368 Camshaft Position Sensor "B" Circuit High Input (Bank 1) Open or short in VVT sensor for exhaust camshaft circuit
VVT sensor for exhaust camshaft
Exhaust camshaft
ECM		 Comes on DTC stored Refer to DTC P0368: Camshaft Position Sensor "B" Circuit High Input (Bank 1)
P0390 Camshaft Position Sensor "B" Circuit (Bank 2) Open or short in VVT sensor for exhaust camshaft circuit
VVT sensor for exhaust camshaft
Exhaust camshaft
ECM		 Comes on DTC stored Refer to DTC P0390: Camshaft Position Sensor "B" Circuit (Bank 2)
P0392 Camshaft Position Sensor "B" Circuit Low Input (Bank 2) Open or short in VVT sensor for exhaust camshaft circuit
VVT sensor for exhaust camshaft
Exhaust camshaft
ECM		 Comes on DTC stored Refer to DTC P0392: Camshaft Position Sensor "B" Circuit Low Input (Bank 2)
P0393 Camshaft Position Sensor "B" Circuit High Input (Bank 2) Open or short in VVT sensor for exhaust camshaft circuit
VVT sensor for exhaust camshaft
Exhaust camshaft
ECM		 Comes on DTC stored Refer to DTC P0393: Camshaft Position Sensor "B" Circuit High Input (Bank 2)
P0420 Catalyst System Efficiency Below Threshold (Bank 1) Gas leakage from exhaust system
A/F sensor (bank 1 sensor 1)
HO2 sensor (bank 1 sensor 2)
Exhaust manifold sub-assembly RH (TWC: Front catalyst)
Front exhaust pipe assembly (TWC: Rear catalyst)		 Comes on DTC stored Refer to DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1)
P0430 Catalyst System Efficiency Below Threshold (Bank 2) Gas leakage from exhaust system
A/F sensor (bank 2 sensor 1)
HO2 sensor (bank 2 sensor 2)
Exhaust manifold sub-assembly LH (TWC: Front catalyst)
Front exhaust pipe assembly (TWC: Rear catalyst)		 Comes on DTC stored Refer to DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2)
P043E Evaporative Emission System Reference Orifice Clog Up Canister pump module
Connector/wire harness (Canister pump module - ECM)
ECM		 Comes on DTC stored Refer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up
P043F Evaporative Emission System Reference Orifice High Flow Canister pump module
Connector/wire harness (Canister pump module - ECM)
ECM		 Comes on DTC stored Refer to DTC P043F: Evaporative Emission System Reference Orifice High Flow
P0441 Evaporative Emission Control System Incorrect Purge Flow Purge VSV
Connector/wire harness (Purge VSV - ECM)
ECM
Canister pump module
Leakage from EVAP system
Leakage from EVAP line (Purge VSV - Intake manifold)		 Comes on DTC stored Refer to DTC P0441: Evaporative Emission Control System Incorrect Purge Flow
P0451 Evaporative Emission Control System Pressure Sensor Range / Performance Canister pump module
Connector/wire harness (Canister pump module - ECM)
ECM		 Comes on DTC stored Refer to DTC P0451: Evaporative Emission Control System Pressure Sensor Range/Performance
P0452 Evaporative Emission Control System Pressure Sensor/Switch Low Input Canister pump module
Connector/wire harness (Canister pump module - ECM)
ECM		 Comes on DTC stored Refer to DTC P0452: Evaporative Emission Control System Pressure Sensor/Switch Low Input
P0453 Evaporative Emission Control System Pressure Sensor / Switch High Input Canister pump module
Connector/wire harness (Canister pump module - ECM)
ECM		 Comes on DTC stored Refer to DTC P0453: Evaporative Emission Control System Pressure Sensor/Switch High Input
P0455 Evaporative Emission Control System Leak Detected (Gross Leak) Fuel tank cap (loose)
Leakage from EVAP line (Canister - Fuel tank)
Leakage from EVAP line (Purge VSV - Canister)
Canister pump module
Leakage from fuel tank
Leakage from canister		 Comes on DTC stored Refer to DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak)
P0456 Evaporative Emission Control System Leak Detected (Very Small Leak) Same as DTC P0455 Comes on DTC stored Refer to DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak)
P0500 Vehicle Speed Sensor "A" Vehicle speed sensor
Vehicle speed sensor signal circuit
Combination meter assembly
ECM
Skid control ECU
Main Body ECU
Tire pressure warning ECU
Windshield wiper relay
TCM
Display and navigation module display
DCM (telematics transceiver)
Stereo component amplifier		 Comes on DTC stored Refer to DTC P0500: Vehicle Speed Sensor "A"
P0504 Brake Switch "A"/"B" Correlation Short in stop light switch signal circuit
Stop light switch
ECM		 Does not come on DTC stored Refer to DTC P0504: Brake Switch "A"/"B" Correlation
P0505 Idle Control System Malfunction ETCS (Electronic Throttle Control System)
Air induction system
PCV hose connection
ECM		 Comes on DTC stored Refer to DTC P0505: Idle Control System Malfunction
P050A Cold Start Idle Air Control System Performance Throttle body assembly
MAF meter
Air induction system
PCV hose connections
VVT system
Air cleaner filter element
ECM
Wire harness or connector		 Comes on DTC stored Refer to DTC P050A: Cold Start Idle Air Control System Performance
P050B Cold Start Ignition Timing Performance Throttle body assembly
MAF meter
Intake system
PCV hose connections
VVT system
Air cleaner filter element
ECM
Wire harness or connector		 Comes on DTC stored Refer to DTC P050B: Cold Start Ignition Timing Performance
P0560 System Voltage Open in back-up power source circuit
ECM		 Comes on DTC stored Refer to DTC P0560: System Voltage
P0604 Internal Control Module Random Access Memory (RAM) Error ECM Comes on DTC stored Refer to DTC P0604: Internal Control Module Random Access Memory (RAM) Error
P0606 ECM/PCM Processor ECM Comes on DTC stored Refer to DTC P0606: ECM/PCM Processor
P0607 Control Module Performance Exhaust gas leak
HO2 sensor
ECM		 Comes on DTC stored Refer to DTC P0607: Control Module Performance
P060A Internal Control Module Monitoring Processor Performance ECM Comes on DTC stored Refer to DTC P060A: Internal Control Module Monitoring Processor Performance
P060D Internal Control Module Accelerator Pedal Position Performance ECM Comes on DTC stored Refer to DTC P060D: Internal Control Module Accelerator Pedal Position Performance
P060E Internal Control Module Throttle Position Performance ECM Comes on DTC stored Refer to DTC P060E: Internal Control Module Throttle Position Performance
P0617 Starter Relay Circuit High Park/Neutral Position (PNP) switch
Starter relay circuit
Cranking holding function circuit
ECM		 Comes on DTC stored Refer to DTC P0617: Starter Relay Circuit High
P062F Internal Control Module EEPROM Error ECM Comes on DTC stored Refer to DTC P062F: Internal Control Module EEPROM Error
P0630 VIN not Programmed or Mismatch - ECM / PCM ECM Comes on DTC stored Refer to DTC P0630: VIN not Programmed or Mismatch - ECM/PCM
P0657 Actuator Supply Voltage Circuit/Open ECM Comes on DTC stored Refer to DTC P0657: Actuator Supply Voltage Circuit/Open
P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input) Open or short in park/neutral position switch circuit
Park/neutral position switch
Open or short in transmission control switch circuit
ECM		 Comes on DTC stored Refer to DTC P0705: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
P0724 Brake Switch "B" Circuit High Short in stop light switch signal circuit
Stop light switch
ECM		 Comes on DTC stored Refer to DTC P0724: Brake Switch "B" Circuit High
P1603 Engine Stall History Air leak in intake system
Purge VSV
Brake booster hose not connected properly
Mass air flow meter
Engine coolant temperature sensor
Wire harness or connector
Air fuel ratio sensor
Power supply circuit (purge VSV, fuel injector assembly, ignition coil assembly)
Fuel pump
Fuel pump control system
Fuel line
Throttle body assembly
Camshaft timing oil control valve
VVT system
Air conditioning system
Power steering system
Electrical load signal system
A/T system
Park/neutral position switch
ECM		 Does not come on DTC stored Refer to DTC P1603: Engine Stall History
P1604 Startability Malfunction Immobilizer system
Engine assembly (excess friction, compression loss)
Starter assembly
Crankshaft position sensor
Camshaft position sensor
VVT sensor
Engine coolant temperature sensor
Fuel pump
Fuel pump control system
Fuel pipes
Fuel injector
Throttle body
Pressure regulator
Battery
Drive plate
Spark plug
Ignition coil circuit
Intake system
Camshaft timing oil control valve
Mass air flow meter
Air fuel ratio sensor
Valve timing
Fuel
Purge VSV
Intake valve
Exhaust valve
ECM		 Does not come on DTC stored Refer to DTC P1604: Startability Malfunction
P1605 Rough Idling Air leak in intake system
Purge VSV
Brake booster hose not connected properly
Mass air flow meter
Engine coolant temperature sensor
Wire harness or connector
Air fuel ratio sensor
Power supply circuit (purge VSV, fuel injector assembly, ignition coil)
Fuel pump
Fuel pump control system
Fuel line
Throttle body
Camshaft timing oil control valve
VVT system
Knock sensor
Ignition coil
Fuel injector
Spark plug(s)
Air conditioning system
Power steering system
Electrical load signal system
A/T system
Park/neutral position switch
ECM		 Does not come on DTC stored Refer to DTC P1605: Rough Idling
P1607 Cruise Control Input Processor ECM Comes on DTC stored Refer to DTC P1607: Cruise Control Input Processor
P2102 Throttle Actuator Control Motor Circuit Low Open in throttle actuator circuit
Throttle actuator
ECM		 Comes on DTC stored Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low
P2103 Throttle Actuator Control Motor Circuit High Short in throttle actuator circuit
Throttle actuator
Throttle valve
Throttle body assembly
ECM		 Comes on DTC stored Refer to DTC P2103: Throttle Actuator Control Motor Circuit High
P2109 Throttle/Pedal Position Sensor "A" Minimum Stop Performance Throttle body assembly Does not come on DTC stored Refer to DTC P2109: Throttle/Pedal Position Sensor "A" Minimum Stop Performance
P2111 Throttle Actuator Control System - Stuck Open Throttle actuator
Throttle body assembly
Throttle valve
ECM
Wire harness or connector		 Comes on DTC stored Refer to DTC P2111: Throttle Actuator Control System - Stuck Open
P2112 Throttle Actuator Control System - Stuck Closed Throttle actuator
Throttle body assembly
Throttle valve
ECM
Wire harness or connector		 Comes on DTC stored Refer to DTC P2112: Throttle Actuator Control System - Stuck Closed
P2118 Throttle Actuator Control Motor Current Range/Performance Open in electronic throttle control system power source circuit
Battery
Battery terminals
ETCS fuse
ECM		 Comes on DTC stored Refer to DTC P2118: Throttle Actuator Control Motor Current Range/Performance
P2119 Throttle Actuator Control Throttle Body Range / Performance Electronic throttle control system
ECM
Wire harness or connector		 Comes on DTC stored Refer to DTC P2119: Throttle Actuator Control Throttle Body Range/Performance
P2120 Throttle/Pedal Position Sensor/Switch "D" Circuit Accelerator Pedal Position (APP) sensor
ECM		 Comes on DTC stored Refer to DTC P2120: Throttle/Pedal Position Sensor/Switch "D" Circuit
P2121 Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance Accelerator Pedal Position (APP) sensor
ECM		 Comes on DTC stored Refer to DTC P2121: Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance
P2122 Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input APP sensor
Open in VCP1 circuit
Open or ground short in VPA circuit
ECM		 Comes on DTC stored Refer to DTC P2122: Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input
P2123 Throttle/Pedal Position Sensor/Switch "D" Circuit High Input APP sensor
Open in EPA circuit
ECM		 Comes on DTC stored Refer to DTC P2123: Throttle/Pedal Position Sensor/Switch "D" Circuit High Input
P2125 Throttle/Pedal Position Sensor/Switch "E" Circuit APP sensor
ECM		 Comes on DTC stored Refer to DTC P2125: Throttle/Pedal Position Sensor/Switch "E" Circuit
P2127 Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input APP sensor
Open in VCP2 circuit
Open or ground short in VPA2 circuit
ECM		 Comes on DTC stored Refer to DTC P2127: Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input
P2128 Throttle/Pedal Position Sensor/Switch "E" Circuit High Input APP sensor
Open in EPA2 circuit
ECM		 Comes on DTC stored Refer to DTC P2128: Throttle/Pedal Position Sensor/Switch "E" Circuit High Input
P2135 Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation Short between VTA1 and VTA2 circuits
Throttle position sensor (built into throttle body)
ECM		 Comes on DTC stored Refer to DTC P2135: Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation
P2138 Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation Short between VPA and VPA2 circuits
APP sensor
ECM		 Comes on DTC stored Refer to DTC P2138: Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation
P2195 Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) Open or short in A/F sensor (bank 1 sensor 1) circuit
A/F sensor (bank 1 sensor 1)
A/F sensor (bank 1 sensor 1) heater
A/F sensor heater relay
A/F sensor heater and relay circuits
Air induction system
Injector
ECM		 Comes on DTC stored Refer to DTC P2195: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1)
P2196 Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) Open or short in A/F sensor (bank 1 sensor 1) circuit
A/F sensor (bank 1 sensor 1)
A/F sensor (bank 1 sensor 1) heater
A/F sensor heater relay
A/F sensor heater and relay circuits
Air induction system
Injector
ECM		 Comes on DTC stored Refer to DTC P2196: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1)
P2197 Oxygen (A/F) Sensor Signal Stuck Lean (Bank 2 Sensor 1) Open or short in A/F sensor (bank 2 sensor 1) circuit
A/F sensor (bank 2 sensor 1)
A/F sensor (bank 2 sensor 1) heater
A/F sensor heater relay
A/F sensor heater and relay circuits
Air induction system
Injector
ECM		 Comes on DTC stored Refer to DTC P2197: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 2 Sensor 1)
P2198 Oxygen (A/F) Sensor Signal Stuck Rich (Bank 2 Sensor 1) Open or short in A/F sensor (bank 2 sensor 1) circuit
A/F sensor (bank 2 sensor 1)
A/F sensor (bank 2 sensor 1) heater
A/F sensor heater relay
A/F sensor heater and relay circuits
Air induction system
Injector
ECM		 Comes on DTC stored Refer to DTC P2198: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 2 Sensor 1)
P2237 Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1) Open in A/F sensor (bank 1 sensor 1) circuit
A/F sensor (bank 1 sensor 1)
ECM		 Comes on DTC stored Refer to DTC P2237: Oxygen (A/F) Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1)
P2238 Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1) Open or short in A/F sensor (bank 1 sensor 1) circuit
A/F sensor (bank 1 sensor 1)
ECM		 Comes on DTC stored Refer to DTC P2238: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1)
P2239 Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1) Open or short in A/F sensor (bank 1 sensor 1) circuit
A/F sensor (bank 1 sensor 1)
ECM		 Comes on DTC stored Refer to DTC P2239: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1)
P2240 Oxygen (A/F) Sensor Pumping Current Circuit/Open (Bank 2 Sensor 1) Open in A/F sensor (bank 2 sensor 1) circuit
A/F sensor (bank 2 sensor 1)
ECM		 Comes on DTC stored Refer to DTC P2240: Oxygen (A/F) Sensor Pumping Current Circuit/Open (Bank 2 Sensor 1)
P2241 Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 2 Sensor 1) Open or short in A/F sensor (bank 2 sensor 1) circuit
A/F sensor (bank 2 sensor 1)
ECM		 Comes on DTC stored Refer to DTC P2241: Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 2 Sensor 1)
P2242 Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 2 Sensor 1) Open or short in A/F sensor (bank 2 sensor 1) circuit
A/F sensor (bank 2 sensor 1)
ECM		 Comes on DTC stored Refer to DTC P2242: Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 2 Sensor 1)
P2252 Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1) Open or short in A/F sensor (bank 1 sensor 1) circuit
A/F sensor (bank 1 sensor 1)
ECM		 Comes on DTC stored Refer to DTC P2252: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1)
P2253 Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1) Open or short in A/F sensor (bank 1 sensor 1) circuit
A/F sensor (bank 1 sensor 1)
ECM		 Comes on DTC stored Refer to DTC P2253: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)
P2255 Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 2 Sensor 1) Open or short in A/F sensor (bank 2 sensor 1) circuit
A/F sensor (bank 2 sensor 1)
ECM		 Comes on DTC stored Refer to DTC P2255: Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 2 Sensor 1)
P2256 Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 2 Sensor 1) Open or short in A/F sensor (bank 2 sensor 1) circuit
A/F sensor (bank 2 sensor 1)
ECM		 Comes on DTC stored Refer to DTC P2256: Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 2 Sensor 1)
P2401 Evaporative Emission System Leak Detection Pump Control Circuit Low Canister pump module
Connector/wire harness (Canister pump module - ECM)
ECM		 Comes on DTC stored Refer to DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low
P2402 Evaporative Emission System Leak Detection Pump Control Circuit High Canister pump module
Connector/wire harness (Canister pump module - ECM)
ECM		 Comes on DTC stored Refer to DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High
P2419 Evaporative Emission System Switching Valve Control Circuit Low Canister pump module
Connector/wire harness (Canister pump module - ECM)
ECM		 Comes on DTC stored Refer to DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low
P2420 Evaporative Emission System Switching Valve Control Circuit High Canister pump module (0.02 inch orifice, leak detection pump, vent valve)
Connector/wire harness (Canister pump module - ECM)
ECM		 Comes on DTC stored Refer to DTC P2420: Evaporative Emission System Switching Valve Control Circuit High
P2610 ECM/PCM Internal Engine Off Timer Performance ECM Comes on DTC stored Refer to DTC P2610: ECM/PCM Internal Engine Off Timer Performance
U0101 Lost Communication with TCM Open or short in TCM and ECM circuit
TCM
ECM		 Comes on DTC stored Refer to DTC U0101: Lost Communication with TCM
Chapter Navigation
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Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.