Tech Tips
Factors such as instrument type may cause readings to differ slightly from the stated values. If any DTCs are output during a check mode DTC check, check the trouble area for the DTCs listed in the table below. For details of each DTC, refer to the "See page" indicated.
*: The MIL flashes when catalyst-damaging misfire is detected.
| DTC Code | Detection Item | Trouble Area | MIL | Memory | See page |
|---|---|---|---|---|---|
| P0010/39 | Camshaft Position "A" Actuator Circuit (Bank 1) | - Open or short in Oil Control Valve circuit - Oil control valve - ECM |
Comes on | DTC stored | |
| P0011/59 | Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1) | - Valve timing - Oil control valve - OCV filter - Camshaft timing gear assembly - ECM |
Comes on / - | DTC stored | |
| P0012/59 | Camshaft Position "A" - Timing Over-Retarded (Bank 1) | - Valve timing - Oil control valve - OCV filter - Camshaft timing gear assembly - ECM |
Comes on / - | DTC stored | |
| P0016/18 | Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) | - Mechanical system (Timing chain has jumped tooth or chain stretched) - ECM |
Comes on / - | DTC stored | |
| P0031 | Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) | - Open in Air-fuel Ratio (A/F) sensor heater circuit - A/F sensor - A/F Relay - ECM |
Comes on | DTC stored | |
| P0032 | Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1) | - Short in Air-fuel Ratio (A/F) sensor heater circuit - A/F sensor - A/F relay - ECM |
Comes on | DTC stored | |
| P0037 | Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2) | - Heated oxygen sensor (bank 1 sensor 2) heater circuit - ECM |
Comes on | DTC stored | |
| P0038 | Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2) | - Heated oxygen sensor (bank 1 sensor 2) heater circuit - ECM |
Comes on | DTC stored | |
| P0100/31 | Mass Air Flow Circuit Malfunction | - Open or short in Mass Air Flow (MAF) meter circuit - MAF meter - ECM |
Comes on | DTC stored | |
| P0102/31 | Mass or Volume Air Flow Circuit Low Input | - Open in MAF meter circuit - Short in ground circuit - MAF meter - ECM |
Comes on | DTC stored | |
| P0103/31 | Mass or Volume Air Flow Circuit High Input | - Short in MAF meter circuit (+B circuit) - MAF meter - ECM |
Comes on | DTC stored | |
| P0110/24 | Intake Air Temperature Circuit | - Open or short in Intake Air Temperature (IAT) sensor circuit - IAT sensor (built into MAF meter) - ECM |
- | DTC stored | |
| P0112/24 | Intake Air Temperature Circuit Low Input | - Short in IAT sensor circuit - IAT sensor (built into MAF meter) - ECM |
Comes on / - | DTC stored | |
| P0113/24 | Intake Air Temperature Circuit High Input | - Open in IAT sensor circuit - IAT sensor (built into MAF meter) - ECM |
Comes on / - | DTC stored | |
| P0115/22 | Engine Coolant Temperature Circuit | - Open or short in Engine Coolant Temperature (ECT) sensor circuit - ECT sensor - ECM |
Comes on | DTC stored | |
| P0116 | Engine Coolant Temperature Circuit Range / Performance Problem | - ECT sensor - Cooling system |
Comes on | DTC stored | |
| P0117/22 | Engine Coolant Temperature Circuit Low Input | - Short in ECT sensor circuit - ECT sensor - ECM |
Comes on | DTC stored | |
| P0118/22 | Engine Coolant Temperature Circuit High Input | - Open in ECT sensor circuit - ECT sensor - ECM |
Comes on | DTC stored | |
| P0120/41 | Throttle / Pedal Position Sensor / Switch "A" Circuit | - Throttle Position (TP) sensor (built into throttle body) - ECM |
Comes on | DTC stored | |
| P0121/41 | Throttle Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem | - TP sensor (built into throttle body) | Comes on | DTC stored | |
| P0122/41 | Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input | - TP sensor (built into throttle body) - Short in VTA1 circuit - Open in VC circuit - ECM |
Comes on | DTC stored | |
| P0123/41 | Throttle / Pedal Position Sensor / Switch "A" Circuit High Input | - TP sensor (built into throttle body) - Open in VTA1 circuit - Open in E2 circuit - Short between VC and VTA1 circuit - ECM |
Comes on | DTC stored | |
| P0130/21 | Oxygen Sensor Circuit (Bank 1 Sensor 1) | - Open or short in heated oxygen sensor (sensor 1) circuit - Heated oxygen sensor (sensor 1) - ECM |
- | DTC stored | |
| P0135/21 | Oxygen Sensor Heater Circuit (Bank 1 Sensor 1) | - Open in heated oxygen sensor (sensor 1) heater circuit - Heated oxygen sensor heater (sensor 1) - MAIN relay - ECM |
- | DTC stored | |
| P0136 | Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2) | - Open or short in heated oxygen (HO2) sensor (sensor 2) circuit - Heated oxygen sensor (sensor 2) - Heated oxygen sensor heater (sensor 2) - A/F sensor (sensor 1) - A/F sensor heater (sensor 1) - A/F relay - MAIN relay - Gas leakage from exhaust system |
Comes on | DTC stored | |
| P0137 | Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2) | - Open in HO2 sensor (sensor 2) circuit - Heated oxygen sensor (sensor 2) - Heated oxygen sensor heater (sensor 2) - MAIN relay - Gas leakage from exhaust system |
Comes on | DTC stored | |
| P0138 | Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2) | - Short in heated oxygen sensor (sensor 2) circuit - Short in heated oxygen sensor (sensor 2) - ECM internal circuit malfunction |
Comes on | DTC stored | |
| P0171 | System Too Lean (Fuel Trim) | - Air induction system - Injector blockage - MAF meter - ECT sensor - 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) - MAIN relay - A/F sensor heater and A/F relay circuits - PCV hose connections - PCV valve and hose - ECM |
Comes on | DTC stored | |
| P0172 | System Too Rich (Fuel Trim) | - 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) - MAIN relay - A/F sensor heater and A/F relay circuits - ECM |
Comes on | DTC stored | |
| P0220/41 | Throttle / Pedal Position Sensor / Switch "B" Circuit | - TP sensor (built into throttle body) - ECM |
Comes on | DTC stored | |
| P0222/41 | Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input | - TP sensor (built into throttle body) - Short in VTA2 circuit - Open in VC circuit - ECM |
Comes on | DTC stored | |
| P0223/41 | Throttle / Pedal Position Sensor / Switch "B" Circuit High Input | - TP sensor (built into throttle body) - Open in VTA2 circuit - Open in E2 circuit - Short between VC and VTA2 circuit - ECM |
Comes on | DTC stored | |
| 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 clearance - Valve timing - PCV hose connections - PCV hose - ECM |
Comes on / Blinks* | DTC stored | |
| P0301 | Cylinder 1 Misfire Detected | - Same as DTC P0300 | Comes on / Blinks* | DTC stored | |
| P0302 | Cylinder 2 Misfire Detected | - Same as DTC P0300 | Comes on / Blinks* | DTC stored | |
| P0303 | Cylinder 3 Misfire Detected | - Same as DTC P0300 | Comes on / Blinks* | DTC stored | |
| P0304 | Cylinder 4 Misfire Detected | - Same as DTC P0300 | Comes on / Blinks* | DTC stored | |
| P0327/52 | Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) | - Short in knock sensor circuit - Knock sensor - ECM |
Comes on | DTC stored | |
| P0328/52 | Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) | - Open in knock sensor circuit - Knock sensor - ECM |
Comes on | DTC stored | |
| P0335/13 | Crankshaft Position Sensor "A" Circuit | - Open or short in Crankshaft Position (CKP) sensor circuit - CKP sensor - CKP sensor plate (crankshaft) - ECM |
Comes on | DTC stored | |
| P0339/13 | Crankshaft Position Sensor "A" Circuit Intermittent | - Same as DTC P0335/13 | - | DTC stored | |
| P0340/12 | Camshaft Position Sensor Circuit Malfunction | - Open or short in camshaft position sensor circuit - Camshaft position sensor - Camshaft timing gear - Jumped tooth of timing chain - ECM |
Comes on | DTC stored | |
| P0341/12 | Camshaft Position Sensor "A" Circuit Range / Performance (Bank 1 or Single Sensor) | - Same as DTC P0340/12 | Comes on | DTC stored | |
| P0351/14 | Ignition Coil "A" Primary / Secondary Circuit | - Ignition system - Open or short in IGF or IGT circuit (1 to 4) between ignition coil and ECM - No. 1 to No. 4 ignition coils - ECM |
Comes on | DTC stored | |
| P0352/15 | Ignition Coil "B" Primary / Secondary Circuit | - Same as DTC P0351/14 | Comes on | DTC stored | |
| P0353/14 | Ignition Coil "C" Primary / Secondary Circuit | - Same as DTC P0351/14 | Comes on | DTC stored | |
| P0354/15 | Ignition Coil "D" Primary / Secondary Circuit | - Same as DTC P0351/14 | Comes on | DTC stored | |
| P0412 | Secondary Air Injection System Switching Valve "A" Circuit | - Air switching valve - Air injection control driver - ECM |
Comes on | DTC stored | |
| P0418 | Secondary Air Injection System Control "A" Circuit | - Air pump - Air injection control driver - ECM |
Comes on | DTC stored | |
| P0420 | Catalyst System Efficiency Below Threshold (Bank 1) | - Gas leakage from exhaust system - A/F sensor (sensor 1) - Heated oxygen sensor (sensor 2) - Front exhaust pipe (TWC) |
Comes on | DTC stored | |
| P0443 | Evaporative Emission Control System Purge Control Valve Circuit | - Open or short in VSV for EVAP circuit - VSV for EVAP - ECM |
Comes on | DTC stored | |
| P0500/42 | Vehicle Speed Sensor Malfunction | - Open or short in vehicle speed sensor circuit - Vehicle speed sensor - Combination meter - ECM - Skid control ECU |
Comes on | DTC stored | |
| P0504/51 | Brake Switch "A" / "B" Correlation | - Short in stop light switch signal circuit - STOP fuse - Stop light switch - ECM |
- | DTC stored | |
| P0505 | Idle Control System Malfunction | - Throttle body - Air induction system - PCV hose and PCV valve - ECM |
Comes on | DTC stored | |
| P0560 | System Voltage | - Open in backup power source circuit - ECM |
Comes on | DTC stored | |
| P0604/89 | Internal Control Module Random Access Memory (RAM) Error | ECM | Comes on | DTC stored | |
| P0606/89 | ECM / PCM Processor | ECM | Comes on | DTC stored | |
| P0607/89 | Control Module Performance | ECM | Comes on | DTC stored | |
| P060A | Internal Control Module Monitoring Processor Performance | ECM | Comes on | DTC stored | |
| P060D | Internal Control Module Accelerator Pedal Position Performance | ECM | Comes on | DTC stored | |
| P060E | Internal Control Module Throttle Position Performance | ECM | Comes on | DTC stored | |
| P0617 | Starter Relay Circuit High | - PNP switch - Starter relay circuit - Ignition switch - ECM |
Comes on | DTC stored | |
| P0657/89 | Actuator Supply Voltage Circuit / Open | ECM | Comes on | DTC stored | |
| P1613 | Secondary Air Injection Driver Malfunction | - Air injection driver - ECM |
Comes on | DTC stored | |
| P2102/41 | Throttle Actuator Control Motor Circuit Low | - Open in throttle actuator circuit - Throttle actuator - ECM |
Comes on | DTC stored | |
| P2103/41 | Throttle Actuator Control Motor Circuit High | - Short in throttle actuator circuit - Throttle actuator - Throttle valve - Throttle body assembly - ECM |
Comes on | DTC stored | |
| P2111/41 | Throttle Actuator Control System - Stuck Open | - Throttle actuator - Throttle body assembly - Throttle valve |
Comes on | DTC stored | |
| P2112/41 | Throttle Actuator Control System - Stuck Closed | - Same as DTC P2111/41 | Comes on | DTC stored | |
| P2118/89 | Throttle Actuator Control Motor Current Range / Performance | - Open in ETCS power source circuit - ETCS fuse - ECM |
Comes on | DTC stored | |
| P2119/89 | Throttle Actuator Control Throttle Body Range / Performance | - ETCS - ECM |
Comes on | DTC stored | |
| P2120/19 | Throttle / Pedal Position Sensor / Switch "D" Circuit | - Accelerator Pedal Position (APP) sensor - ECM |
Comes on | DTC stored | |
| P2121/19 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance | - APP sensor circuit - APP sensor - ECM |
Comes on | DTC stored | |
| P2122/19 | Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input | - APP sensor - Open in VCP1 circuit - Open or ground short VPA circuit - ECM |
Comes on | DTC stored | |
| P2123/19 | Throttle / Pedal Position Sensor / Switch "D" Circuit High Input | - APP sensor - Open in EPA circuit - ECM |
Comes on | DTC stored | |
| P2125/19 | Throttle / Pedal Position Sensor / Switch "E" Circuit | - APP sensor - ECM |
Comes on | DTC stored | |
| P2127/19 | Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input | - APP sensor - Open in VCP2 circuit - Open or ground short VPA2 circuit - ECM |
Comes on | DTC stored | |
| P2128/19 | Throttle / Pedal Position Sensor / Switch "E" Circuit High Input | - APP sensor - Open in EPA2 circuit - ECM |
Comes on | DTC stored | |
| P2135/41 | Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation | - Short between VTA1 and VTA2 circuits - TP sensor (built into throttle body) - ECM |
Comes on | DTC stored | |
| P2138/19 | Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation | - Short between VPA and VPA2 circuits - APP sensor - ECM |
Comes on | DTC stored | |
| P2195 | Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) | - Open or short in A/F sensor (sensor 1) circuit - A/F sensor (sensor 1) - A/F sensor heater (sensor 1) - A/F relay - A/F sensor heater and A/F relay circuits - Air induction system - Fuel pressure - Injector - ECM |
Comes on | DTC stored | |
| P2196 | Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) | Same as DTC P2195 | Comes on | DTC stored | |
| P2237 | Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1) | - Open or short in A/F sensor circuit - A/F sensor - ECM |
Comes on | DTC stored | |
| P2238 | Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1) | Same as DTC P2237 | Comes on | DTC stored | |
| P2239 | Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1) | Same as DTC P2237 | Comes on | DTC stored | |
| P2252 | Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1) | Same as DTC P2237 | Comes on | DTC stored | |
| P2253 | Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1) | Same as DTC P2237 | Comes on | DTC stored | |
| P2A00 | A/F Sensor Circuit Slow Response (Bank 1 Sensor 1) | - Open or short in A/F sensor (sensor 1) circuit - A/F sensor (sensor 1) - A/F sensor heater (sensor 1) - A/F relay - A/F sensor heater and A/F relay circuits - Air induction system - Fuel pressure - Injector - PCV valve and hose - PCV hose connections - ECM |
Comes on | DTC stored |