Tech Tips
Parameters listed in the chart may be different from your readings depending on the type of instruments and other factors.
If any DTCs are displayed during a check mode DTC check, check the circuit for the DTCs listed in the table below. For details of each DTC, refer to the page indicated.
*1: MIL flashes when a catalyst damaged misfire is detected.
| DTC Code | Detection Item | Trouble Area | MIL | Memory | See page |
|---|---|---|---|---|---|
| P0010 | Camshaft Position "A" Actuator Circuit (Bank 1) | -Open or short in OCV circuit -OCV -ECM |
Comes on | DTC stored | |
| P0011 | Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1) | -Valve timing -Camshaft timing oil control valve (OCV) -OCV Filter -Camshaft timing sprocket assembly -ECM |
Comes on | DTC stored | |
| P0012 | Camshaft Position "A" - Timing Over-Retarded (Bank 1) | -Valve timing -Camshaft timing oil control valve (OCV) -OCV Filter -Camshaft timing sprocket assembly -ECM |
Comes on | DTC stored | |
| P0016 | Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) | -Mechanical system (Timing chain has jumped tooth or chain stretched) -Camshaft Timing Oil Control Valve (OCV) -OCV filter -Camshaft timing sprocket assembly -ECM |
Comes on | DTC stored | |
| P0031 | Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) | -Open in air fuel ratio sensor heater circuit -Air fuel ratio sensor (sensor 1) -Integration relay (EFI relay) -ECM |
Comes on | DTC stored | |
| P0032 | Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1) | -Short in air fuel ratio sensor heater circuit -Air fuel ratio sensor (sensor 1) -Integration relay (EFI relay) -ECM |
Comes on | DTC stored | |
| P0037 | Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2) | -Open in heated oxygen sensor heater circuit -Heated oxygen sensor (sensor 2) -Integration relay (EFI relay) -ECM |
Comes on | DTC stored | |
| P0038 | Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2) | -Short in heated oxygen sensor heater circuit -Heated oxygen sensor (sensor 2) -Integration relay (EFI relay) -ECM |
Comes on | DTC stored | |
| P0107 | Manifold Absolute Pressure / Barometric Pressure Circuit Low Input | -Open or short in manifold absolute pressure sensor circuit -Manifold absolute pressure sensor -ECM |
Comes on | DTC stored | |
| P0108 | Manifold Absolute Pressure / Barometric Pressure Circuit High Input | -Open or short in manifold absolute pressure sensor circuit -Manifold absolute pressure sensor -ECM |
Comes on | DTC stored | |
| P0112 | Intake Air Temperature Circuit Low Input | -Short in intake air temperature sensor circuit -Intake air temperature sensor (built into manifold absolute pressure sensor) -ECM |
Comes on | DTC stored | |
| P0113 | Intake Air Temperature Circuit High Input | -Open in intake air temperature sensor circuit -Intake air temperature sensor (built into manifold absolute pressure sensor) -ECM |
Comes on | DTC stored | |
| P0115 | Engine Coolant Temperature Circuit Malfunction | -Open or short in engine coolant temperature sensor circuit -Engine coolant temperature sensor -ECM |
Comes on | DTC stored | |
| P0116 | Engine Coolant Temperature Circuit Range / Performance Problem | -Thermostat (Water inlet) -Engine coolant temperature sensor |
Comes on | DTC stored | |
| P0117 | Engine Coolant Temperature Circuit Low Input | -Short in engine coolant temperature sensor circuit -Engine coolant temperature sensor -ECM |
Comes on | DTC stored | |
| P0118 | Engine Coolant Temperature Circuit High Input | -Open in engine coolant temperature sensor circuit -Engine coolant temperature sensor -ECM |
Comes on | DTC stored | |
| P0120 | Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction | -Throttle position sensor (built into throttle body assembly) -ECM |
Comes on | DTC stored | |
| P0121 | Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem | -Throttle position sensor (built into throttle body assembly) | Comes on | DTC stored | |
| P0122 | Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input | -Throttle position sensor (built into throttle body assembly) -Short in VTA1 circuit -Open in VC circuit -ECM |
Comes on | DTC stored | |
| P0123 | Throttle / Pedal Position Sensor / Switch "A" Circuit High Input | -Throttle position sensor (built into throttle body assembly) -Open in VTA1 circuit -Open in E2 circuit -Short between VC and VTA1 circuits -ECM |
Comes on | DTC stored | |
| P0136 | Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2) | -Open or short in heated oxygen sensor (sensor 2) circuit -Heated oxygen sensor (sensor 2) -Air fuel ratio sensor (sensor 1) -Gas leak from exhaust system -EGR valve assembly |
Comes on | DTC stored | |
| P0137 | Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2) | -Open in heated oxygen sensor (sensor 2) circuit -Heated oxygen sensor (sensor 2) -Gas leak from exhaust system -EGR valve assembly |
Comes on | DTC stored | |
| P0138 | Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2) | -Short in heated oxygen sensor (sensor 2) circuit -Heated oxygen sensor (sensor 2) -Air fuel ratio sensor (sensor 1) -EGR valve assembly -ECM |
Comes on | DTC stored | |
| P0171 | System Too Lean (Bank 1) | -Air induction system -Fuel injector blockage -Manifold absolute pressure sensor -Engine coolant temperature sensor -Fuel pressure -Gas leak from exhaust system -Open or short in air fuel ratio sensor (sensor 1) circuit -Air fuel ratio sensor (sensor 1) -PCV valve and hose -PCV hose connections -EGR valve assembly -ECM |
Comes on | DTC stored | |
| P0172 | System Too Rich (Bank 1) | -Fuel injector leak or blockage -Manifold absolute pressure sensor -Engine coolant temperature sensor -Ignition system -Fuel pressure -Gas leak from exhaust system -Open or short in air fuel ratio sensor (sensor 1) circuit -Air fuel ratio sensor (sensor 1) -EGR valve assembly -ECM |
Comes on | DTC stored | |
| P0220 | Throttle / Pedal Position Sensor / Switch "B" Circuit | -Throttle position sensor (built into throttle body assembly) -ECM |
Comes on | DTC stored | |
| P0222 | Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input | -Throttle position sensor (built into throttle body assembly) -Short in VTA2 circuit -Open in VC circuit -ECM |
Comes on | DTC stored | |
| P0223 | Throttle / Pedal Position Sensor / Switch "B" Circuit High Input | -Throttle position sensor (built into throttle body assembly) -Open in VTA2 circuit -Open in E2 circuit -Short between VC and VTA2 circuits -ECM |
Comes on | DTC stored | |
| P0300 | Random / Multiple Cylinder Misfire Detected | -Open or short in engine wire harness -Connector connection -Vacuum hose connections -Ignition system -Fuel injector assembly -Fuel pressure -Manifold Absolute Pressure Sensor -Engine coolant temperature sensor -Compression pressure -Valve clearance -Valve timing -PCV valve and hose -PCV hose connection -Air induction system -EGR valve assembly -ECM |
Comes on *1 |
DTC stored | |
| P0301 | Cylinder 1 Misfire Detected | -Open or short in engine wire harness -Connector connection -Vacuum hose connections -Ignition system -Fuel injector assembly -Fuel pressure -Manifold Absolute Pressure Sensor -Engine coolant temperature sensor -Compression pressure -Valve clearance -Valve timing -PCV valve and hose -PCV hose connection -Air induction system -EGR valve assembly -ECM |
Comes on *1 |
DTC stored | |
| P0302 | Cylinder 2 Misfire Detected | -Open or short in engine wire harness -Connector connection -Vacuum hose connections -Ignition system -Fuel injector assembly -Fuel pressure -Manifold Absolute Pressure Sensor -Engine coolant temperature sensor -Compression pressure -Valve clearance -Valve timing -PCV valve and hose -PCV hose connection -Air induction system -EGR valve assembly -ECM |
Comes on *1 |
DTC stored | |
| P0303 | Cylinder 3 Misfire Detected | -Open or short in engine wire harness -Connector connection -Vacuum hose connections -Ignition system -Fuel injector assembly -Fuel pressure -Manifold Absolute Pressure Sensor -Engine coolant temperature sensor -Compression pressure -Valve clearance -Valve timing -PCV valve and hose -PCV hose connection -Air induction system -EGR valve assembly -ECM |
Comes on *1 |
DTC stored | |
| P0327 | Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) | -Short in knock sensor circuit -Knock sensor -ECM |
Comes on | DTC stored | |
| P0328 | Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) | -Open in knock sensor circuit -Knock sensor -ECM |
Comes on | DTC stored | |
| P0335 | Crankshaft Position Sensor "A" Circuit | -Open or short in crankshaft position sensor circuit -Crankshaft position sensor -Crankshaft position sensor plate -ECM |
Comes on | DTC stored | |
| P0339 | Crankshaft Position Sensor "A" Circuit Intermittent | -Open or short in crankshaft position sensor circuit -Crankshaft position sensor -Crankshaft position sensor plate -ECM |
- | DTC stored | |
| P0340 | Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor) | -Open or short in sensor circuit -Camshaft position sensor -Camshaft -Jumped tooth of timing chain -ECM |
Comes on | DTC stored | |
| P0351 | Ignition Coil "A" Primary / Secondary Circuit | -Ignition system -Open or short in IGF1 or IGT (1 to 3) circuit -No. 1 to No. 3 ignition coils -ECM |
Comes on | DTC stored | |
| P0352 | Ignition Coil "B" Primary / Secondary Circuit | -Ignition system -Open or short in IGF1 or IGT (1 to 3) circuit -No. 1 to No. 3 ignition coils -ECM |
Comes on | DTC stored | |
| P0353 | Ignition Coil "C" Primary / Secondary Circuit | -Ignition system -Open or short in IGF1 or IGT (1 to 3) circuit -No. 1 to No. 3 ignition coils -ECM |
Comes on | DTC stored | |
| P0401 | Exhaust Gas Recirculation Flow Insufficient Detected | -Open or short in EGR circuit -EGR valve assembly -EGR passage -Manifold absolute pressure sensor -ECM |
- | DTC stored | |
| P0403 | Exhaust Gas Recirculation Control Circuit | -Open or short in EGR circuit -EGR valve assembly -ECM |
Comes on | DTC stored | |
| P0420 | Catalyst System Efficiency Below Threshold (Bank 1) | -Gas leak from exhaust system -Air fuel ratio sensor (sensor 1) -Heated oxygen sensor (sensor 2) -Exhaust manifold assembly (TWC: Front catalyst) -Front exhaust pipe assembly (TWC: Rear catalyst) -EGR valve assembly |
Comes on | DTC stored | |
| P0443 | Evaporative Emission Control System Purge Control Valve Circuit | -Open or short in purge VSV circuit -Purge VSV -ECM |
Comes on | DTC stored | |
| P0500 | Vehicle Speed Sensor "A" | -Open or short in speed signal circuit -Combination meter assembly (Skid control ECU, Vehicle speed sensor) -ECM |
Comes on | DTC stored | |
| P0504 | Brake Switch "A" / "B" Correlation | -Short in stop light switch signal circuit -Stop light switch assembly -STOP fuse -IGN fuse -ECM |
- | DTC stored | |
| P0505 | Idle Control System Malfunction | -Throttle body assembly -Air induction system -Ventilation hose connection -PCV hose -EGR valve assembly -ECM |
Comes on | DTC stored | |
| P0560 | System Voltage | -Open in back-up power source circuit -Battery -Battery terminals -EFI fuse -ECM |
Comes on | DTC stored | |
| P0604 | Internal Control Module Random Access Memory (RAM) Error | -ECM | Comes on | DTC stored | |
| P0606 | ECM / PCM Processor | -ECM | Comes on | DTC stored | |
| P060A | Internal Control Module Monitoring Processor Performance | -ECM | Comes on | DTC stored | |
| P060B | Internal Control Module A/D Processing 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 | -Clutch start switch assembly -Park/Neutral start switch assembly -Starter relay circuit -Ignition switch assembly *2 -Power Management ECU *3 -ECM |
Comes on | DTC stored | |
| P0657 | Actuator Supply Voltage Circuit / Open | -ECM | Comes on | DTC stored | |
| P0724 | Brake Switch "B" Circuit High | -Short in stop light switch signal circuit -Stop light switch assembly -ECM |
Comes on | DTC stored | |
| P1603*4 | Engine Stall History | -Air leak in intake system -Purge VSV -Brake booster hose not connected properly -Manifold absolute pressure sensor -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 -Air conditioning system -Power steering system -Electrical load signal system -CVT system -Park/neutral position switch -EGR valve -ECM |
- | DTC stored | |
| P1604 | Startability Malfunction | -Immobiliser system -Engine assembly (excess friction, compression loss) -Starter -Crankshaft position sensor -Engine coolant temperature sensor -Fuel pump -Fuel pump control system -Fuel pipes -Fuel injector assembly -Throttle body -Pressure regulator -Battery -Drive plate *4 -Flywheel *5 -Spark plug -Ignition coil circuit -Intake system -Camshaft timing oil control valve -Manifold absolute pressure sensor -Air fuel ratio sensor -Valve timing -Fuel -Purge VSV -EGR system -Intake valve -Exhaust valve -ECM |
- | DTC stored | |
| P1605 | Rough Idling | -Air leak in intake system -Purge VSV -Brake booster hose not connected properly -Manifold absolute pressure sensor -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 -Camshaft timing oil control valve -Knock sensor -Ignition coil assembly -Fuel injector assembly -Spark plug -Air conditioning system -Power steering system -Electrical load signal system -CVT system -Park/neutral position switch -EGR valve -ECM |
- | DTC stored | |
| P2102 | Throttle Actuator Control Motor Circuit Low | -Open in throttle actuator circuit -Throttle body assembly -ECM |
Comes on | DTC stored | |
| P2103 | Throttle Actuator Control Motor Circuit High | -Short in throttle actuator circuit -Throttle body assembly -ECM |
Comes on | DTC stored | |
| P2109 | Throttle / Pedal Position Sensor "A" Minimum Stop Performance | -Throttle body assembly | Comes on | DTC stored | |
| P2111 | Throttle Actuator Control System - Stuck Open | -Throttle actuator -Throttle body assembly -Throttle valve -ECM -Wire harness or connector |
Comes on | DTC stored | |
| P2112 | Throttle Actuator Control System - Stuck Closed | -Throttle actuator -Throttle body assembly -Throttle valve -ECM -Wire harness or connector |
Comes on | DTC stored | |
| P2118 | Throttle Actuator Control Motor Current Range / Performance | -Open in ETCS power source circuit -Battery -Battery terminals -ETCS fuse -ECM |
Comes on | DTC stored | |
| P2119 | Throttle Actuator Control Throttle Body Range / Performance | -ETCS (Electronic Throttle Control System) -ECM -Wire harness or connector |
Comes on | DTC stored | |
| P2120 | Throttle / Pedal Position Sensor / Switch "D" Circuit | -Accelerator pedal position sensor (accelerator pedal assembly) -ECM |
Comes on | DTC stored | |
| P2121 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance | -Accelerator pedal position sensor (accelerator pedal assembly) -ECM |
Comes on | DTC stored | |
| P2122 | Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input | -Accelerator pedal position sensor (accelerator pedal assembly) -Open in VCP1 circuit -Open or ground short in VPA circuit -ECM |
Comes on | DTC stored | |
| P2123 | Throttle / Pedal Position Sensor / Switch "D" Circuit High Input | -Accelerator pedal position sensor (accelerator pedal assembly) -Open in EPA circuit -ECM |
Comes on | DTC stored | |
| P2125 | Throttle / Pedal Position Sensor / Switch "E" Circuit | -Accelerator pedal position sensor (accelerator pedal assembly) -ECM |
Comes on | DTC stored | |
| P2127 | Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input | -Accelerator pedal position sensor (accelerator pedal assembly) -Open in VCP2 circuit -Open or ground short in VPA2 circuit -ECM |
Comes on | DTC stored | |
| P2128 | Throttle / Pedal Position Sensor / Switch "E" Circuit High Input | -Accelerator pedal position sensor (accelerator pedal assembly) -Open in EPA2 circuit -ECM |
Comes on | DTC stored | |
| P2135 | Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation | -Short between VTA1 and VTA2 circuits -Throttle position sensor (built into throttle body assembly) -ECM |
Comes on | DTC stored | |
| P2138 | Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation | -Short between VPA and VPA2 circuits -Accelerator pedal position sensor (accelerator pedal assembly) -ECM |
Comes on | DTC stored | |
| P2195 | Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) | -Open or short in air fuel ratio sensor (sensor 1) circuit -Air fuel ratio sensor (sensor 1) -Air fuel ratio sensor heater (sensor 1) -Integration relay (EFI relay) -Air fuel ratio sensor heater circuit -EGR valve assembly -ECM |
Comes on | DTC stored | |
| P2196 | Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) | -Open or short in air fuel ratio sensor (sensor 1) circuit -Air fuel ratio sensor (sensor 1) -Air fuel ratio sensor heater (sensor 1) -Integration relay (EFI relay) -Air fuel ratio sensor heater circuit -EGR valve assembly -ECM |
Comes on | DTC stored | |
| P2237 | Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1) | -Open or short in air fuel ratio sensor (sensor 1) circuit -Air fuel ratio sensor (sensor 1) -ECM |
Comes on | DTC stored | |
| P2238 | Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1) | -Open or short in air fuel ratio sensor (sensor 1) circuit -Air fuel ratio sensor (sensor 1) -EGR valve assembly -ECM |
Comes on | DTC stored | |
| P2239 | Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1) | -Open or short in air fuel ratio sensor (sensor 1) circuit -Air fuel ratio sensor (sensor 1) -ECM |
Comes on | DTC stored | |
| P2252 | Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1) | -Open or short in air fuel ratio sensor (sensor 1) circuit -Air fuel ratio sensor (sensor 1) -ECM |
Comes on | DTC stored | |
| P2253 | Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1) | -Open or short in air fuel ratio sensor (sensor 1) circuit -Air fuel ratio sensor (sensor 1) -ECM |
Comes on | DTC stored | |
| P2610 | ECM / PCM Internal Engine Off Timer Performance | -ECM | Comes on | DTC stored | |
| P2A00 | A/F Sensor Circuit Slow Response (Bank 1 Sensor 1) | -Open or short in air fuel ratio sensor circuit -Air fuel ratio sensor -EGR valve assembly -ECM |
Comes on | DTC stored | |
| U0129*4 | Lost Communication with Skid Control ECU | -Wire harness (CANL and CANH circuits) -ECM -Skid control ECU |
Comes on | DTC stored |
*2: w/o Entry and Start System
*3: w/ Entry and Start System
*4: for CVT
*5: for Manual Transaxle