tC 2007

2.4L L4 VIN - Std 4

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Trouble Code: P0037



Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2)

Possible Causes:



Open in HO2 sensor heater circuit
 
HO2 sensor heater
 
Engine room junction block (EFI relay)
 
ECM
 

Trouble Code: P0038



Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)

Possible Causes:



Short in HO2 sensor heater circuit
 
HO2 sensor heater
 
Engine room junction block (EFI relay)
 
ECM
 

Trouble Code: P0100



Mass or Volume Air Flow Circuit

Possible Causes:



Open or short in MAF meter circuit
 
MAF meter
 
ECM
 

Trouble Code: P0101



Mass Air Flow Circuit Range / Performance Problem

Possible Causes:



Mass Air Flow (MAF) meter
 
Air induction system
 
PCV hose connections
 

Trouble Code: P0102



Mass or Volume Air Flow Circuit Low Input

Possible Causes:



Open in MAF meter circuit
 
Short in MAF meter circuit
 
MAF meter
 
ECM
 

Trouble Code: P0103



Mass or Volume Air Flow Circuit High Input

Possible Causes:



Open in Mass Air Flow (MAF) meter power source circuit
 
Open or short in VG circuit
 
MAF meter
 
ECM
 

Trouble Code: P0110



Intake Air Temperature Circuit Malfunction

Possible Causes:



Open or short in IAT sensor circuit
 
IAT sensor (built into MAF meter)
 
ECM
 

Trouble Code: P0111



Intake Air Temperature Sensor Gradient Too High

Possible Causes:



MAF Meter
 

Trouble Code: P0112



Intake Air Temperature Circuit Low Input

Possible Causes:



Short in IAT sensor circuit
 
IAT sensor (built into MAF meter)
 
ECM
 

Trouble Code: P0113



Intake Air Temperature Circuit High Input

Possible Causes:



Open in IAT sensor circuit
 
IAT sensor (inside MAF meter)
 
ECM
 

Trouble Code: P0115



Engine Coolant Temperature Circuit Malfunction

Possible Causes:



Open or short in ECT sensor circuit
 
ECT sensor
 
ECM
 

Trouble Code: P0116



Engine Coolant Temperature Circuit Range / Performance Problem

Possible Causes:



Thermostat
 
ECT sensor
 

Trouble Code: P0117



Engine Coolant Temperature Circuit Low Input

Possible Causes:



Short in ECT sensor circuit
 
ECT sensor
 
ECM
 

Trouble Code: P0118



Engine Coolant Temperature Circuit High Input

Possible Causes:



Open in ECT sensor circuit
 
ECT sensor
 
ECM
 

Trouble Code: P011B



Engine Coolant Temperature / Intake Air Temperature Correlation

Possible Causes:



IAT sensor
 
ECT sensor
 
ECM
 

Trouble Code: P0120



Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction

Possible Causes:



Throttle position sensor (built into throttle body)
 
ECM
 

Trouble Code: P0121



Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem

Possible Causes:



Throttle position sensor (built into throttle body)
 
Throttle position sensor circuit
 
ECM
 

Trouble Code: P0122



Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input

Possible Causes:



Throttle position sensor (built into throttle body)
 
Short in VTA1 circuit
 
Open in VC circuit
 
ECM
 

Trouble Code: P0123



Throttle / Pedal Position Sensor / Switch "A" Circuit High Input

Possible Causes:



Throttle position sensor (built into throttle body)
 
Open in VTA1 circuit
 
Open in E2 circuit
 
Short between VC and VTA1 circuits
 
ECM
 

Trouble Code: P0125



Insufficient Coolant Temperature for Closed Loop Fuel Control

Possible Causes:



Engine coolant temperature sensor
 
Cooling system
 
Thermostat
 

Trouble Code: P0128



Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

Possible Causes:



Thermostat
 
Cooling system
 
ECT sensor
 
ECM
 

Trouble Code: P0136



Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)

Possible Causes:



HO2 sensor (sensor 2)
 
HO2 sensor heater (sensor 2)
 
Air-Fuel Ratio (A/F) sensor (sensor 1)
 
Gas leakage from exhaust system
 
Fuel pressure
 
PCV valve and hose
 
Air induction system
 

Trouble Code: P0137



Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2)

Possible Causes:



Open in HO2 sensor (sensor 2) circuit
 
HO2 sensor (sensor 2)
 
HO2 sensor heater (sensor 2)
 
Air-Fuel Ratio (A/F) sensor (sensor 1)
 
Gas leakage from exhaust system
 

Trouble Code: P0138



Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)

Possible Causes:



Short in HO2 sensor (sensor 2) circuit
 
HO2 sensor (sensor 2)
 
ECM internal circuit malfunction
 
A/F sensor (sensor 1)
 

Trouble Code: P0139



Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)

Possible Causes:



Short in HO2 sensor (sensor 2)
 
HO2 sensor (sensor 2)
 
ECM internal circuit malfunction
 

Trouble Code: P0141



Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

Possible Causes:



Open or short in HO2 sensor heater circuit
 
HO2 sensor heater (sensor 2)
 
EFI relay
 
ECM
 

Trouble Code: P0171



System Too Lean (Bank 1)

Possible Causes:



Air induction system
 
Injector blockage
 
MAF meter
 
ECT sensor
 
Fuel pressure
 
Gas leakage from exhaust system
 
Open or short in A/F sensor (bank 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
 

Trouble Code: P0172



System Too Rich (Bank 1)

Possible Causes:



Injector leakage or blockage
 
MAF meter
 
ECT sensor
 
Ignition system
 
Fuel pressure
 
Gas leakage from exhaust system
 
Open or short in A/F sensor (sensor 1) circuit
 
A/F sensor (sensor 1)
 
A/F sensor heater (sensor 1)
 
A/F sensor heater relay
 
A/F sensor heater and A/F sensor heater relay circuits
 
ECM
 

Trouble Code: P0220



Throttle / Pedal Position Sensor / Switch "B" Circuit

Possible Causes:



Throttle position sensor (built into throttle body)
 
ECM
 

Trouble Code: P0222



Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input

Possible Causes:



Throttle position sensor (built into throttle body)
 
Short in VTA2 circuit
 
Open in VC circuit
 
ECM
 

Trouble Code: P0223



Throttle / Pedal Position Sensor / Switch "B" Circuit High Input

Possible Causes:



Throttle position sensor (built into throttle body)
 
Open in VTA2 circuit
 
Open in E2 circuit
 
Short between VC and VTA2 circuits
 
ECM
 

Trouble Code: P0300



Random / Multiple Cylinder Misfire Detected

Possible Causes:



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
 

Trouble Code: P0301



Cylinder 1 Misfire Detected

Possible Causes:



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
 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



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
 

Trouble Code: P0303



Cylinder 3 Misfire Detected

Possible Causes:



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
 

Trouble Code: P0304



Cylinder 4 Misfire Detected

Possible Causes:



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
 

Trouble Code: P0327



Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)

Possible Causes:



Short in knock sensor circuit
 
Knock sensor
 
ECM
 

Trouble Code: P0328



Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)

Possible Causes:



Open in knock sensor circuit
 
Knock sensor
 
ECM
 

Trouble Code: P0335



Crankshaft Position Sensor "A" Circuit

Possible Causes:



Open or short in CKP sensor circuit
 
CKP sensor
 
CKP sensor plate
 
ECM
 

Trouble Code: P0339



Crankshaft Position Sensor "A" Circuit Intermittent

Possible Causes:



Open or short in CKP sensor circuit
 
CKP sensor
 
CKP sensor plate
 
ECM
 

 
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