Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Trouble Code Chart
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 malfunction code is displayed during the DTC check in check mode, check the circuit for the code listed in the table below.
| DTC | Description |
|---|---|
| DTC P0010 | Camshaft Position "A" Actuator Circuit (Bank 1) |
| DTC P0011 | Camshaft Position "A" -Timing Over-Advanced or System Performance (Bank 1) |
| DTC P0012 | Camshaft Position "A" -Timing Over- Retarded (Bank 1) |
| DTC P0016 | Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) |
| DTC P0031, P0032 | Oxygen (A/F) Sensor Heater Control Circuit Low/High (Bank 1 Sensor 1) |
| DTC P0037, P0038 | Oxygen Sensor Heater Control Circuit Low/High (Bank 1 Sensor 2) |
| DTC P0100, P0102, P0103 | Mass or Volume Air Flow Circuit Malfunction Low/High Input |
| DTC P0101 | Mass or Volume Air Flow Circuit Range/Performance Problem |
| DTC P0110, P0112, P0113 | Intake Air Temperature Circuit Low/High Input |
| DTC P0115, P0117, P0118 | Engine Coolant Temperature Circuit Low/High Input |
| DTC P0116 | Engine Coolant Temperature Circuit Range/Performance Problem |
| DTC P0120, P0122, P0123, P0220, P0222, P0223, P2135 | Throttle/Pedal Position Sensor/Switch "A & B" Circuit Malfunction Low/High Input & Throttle/Pedal Position Sensor/Switch "A & B" Voltage Correction |
| DTC P0121 | Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem |
| DTC P0125 | Insufficient Coolant Temperature for Closed Loop Fuel Control |
| DTC P0128 | Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) |
| DTC P0136 | Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2) |
| DTC P0171, P0172 | System too Lean/Rich (Bank 1) |
| DTC P0300, P0301, P0302, P0303, P0304 | Random/Multiple Cylinder Misfire Detected & Cylinder 1-4 Misfire Detected |
| DTC P0327, P0328 | Knock Sensor 1 Circuit Low/High Input (Bank 1 or Single Sensor) |
| DTC P0335, P0339 | Crankshaft Position Sensor "A" Circuit Malfunction/Intermittent |
| DTC P0340, P0341 | Camshaft Position Sensor "A" Circuit Range/Performance (Bank 1 or Single Sensor) |
| DTC P0351, P0352, P0353, P0354 | Ignition Coil "A-D" Primary/Secondary Circuit |
| DTC P0420 | Catalyst System Efficiency Below Threshold (Bank 1) |
| DTC P0441, P0446, P2418 | Evaporative Emission Control System Incorrect Purge Flow/Vent Control Circuit/Valve Control Circuit/Open |
| DTC P0442, P0455, P0456 | Evaporative Emission Control System Leak Detected (Small Leak/Gross Leak/Very Small Leak) |
| DTC P0442, P0455, P0456 | Evaporative Emission Control System Leak Detected (Small Leak/Gross Leak/Very Small Leak) |
| DTC P0451, P0452, P0453 | Evaporative Emission Control System Pressure Sensor/Switch Range/Performance Low/High Input |
| DTC P0500 | Vehicle Speed Sensor Malfunction |
| DTC P0504 | Brake Switch "A"/"B" Correlation |
| DTC P0505 | Idle Air Control System |
| DTC P0560 | System Voltage |
| DTC P0604, P0606, P0607, P0657 | Internal Control Module Random Access Memory (RAM) Error, ECM/PCM Processor, Control Module Performance & Actuator Supply Voltage Circuit/Open |
| DTC P0617 | Starter Relay Circuit High |
| DTC P0630 | VIN NOT PROGRAMMED OF MISMATCH - ECM/PCM |
| DTC P0705 | Transmission Range Sensor Circuit Malfunction (PRNDL Input) |
| DTC P2102, P2103 | Throttle Actuator Control Motor Circuit Low/High |
| DTC P2111, P2112 | Throttle Actuator Control System-Stuck Open/Closed |
| DTC P2118 | Throttle Actuator Control Motor Current Range/Performance |
| DTC P2119 | Throttle Actuator Control Throttle Body Range Performance |
| DTC P2120, P2122, P2123, P2125, P2127, P2128, P2138 | Throttle/Pedal Position Sensor/Switch "D & E" Circuit Low/High Input & Throttle/Pedal Position Sensor/Switch "D & E" Voltage Correlation |
| DTC P2121 | Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance |
| DTC P2195, P2196: | Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) & Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) |
| DTC P2238, P2239, P2252, P2253 | Oxygen Sensor Pumping Current Circuit Low/High (for A/F sensor) (Bank 1 Sensor 1) |
| DTC P2238, P2239, P2252, P2253 | Oxygen Sensor Pumping Current Circuit Low/High (for A/F sensor) (Bank 1 Sensor 1) |
| DTC P2A00 | A/F Sensor Circuit Slow Response (Bank 1 Sensor 1) |
For reference only the following charts also contain "Transmission Diagnostic Trouble Codes". Refer to the appropriate transmission diagnostic article for testing and repair: AUTOMATIC TRANSAXLE (U140F) - DIAGNOSTICS or AUTOMATIC TRANSAXLE (U241E) - DIAGNOSTICS .
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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.
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