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:
The parameters listed in the chart are for reference only.
Factors such as instrument type may cause readings to differ slightly from stated values.
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.
SFI SYSTEM:
| DTC Code | Detection Item | Trouble Areas | MIL | Memory |
|---|---|---|---|---|
| P0010 | Camshaft Position "A" Actuator Circuit (Bank 1) |
|
Comes on | DTC Stored |
| P0011 | Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1) |
|
Comes on | DTC Stored |
| P0012 | Camshaft Position "A" - Timing Over-Retarded (Bank 1) | Same as DTC P0011 | Comes on | DTC Stored |
| P0016 | Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) |
|
Comes on | DTC Stored |
| P0031 | Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 1) |
|
Comes on | DTC Stored |
| P0032 | Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 1) |
|
Comes on | DTC Stored |
| P0037 | Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2) |
|
Comes on | DTC Stored |
| P0038 | Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2) |
|
Comes on | DTC Stored |
| P0100 | Mass or Volume Air Flow Circuit |
|
Comes on | DTC Stored |
| P0101 | Mass or Volume Air Flow Circuit Range / Performance Problem | MAF meter | Comes on | DTC Stored |
| P0102 | Mass or Volume Air Flow Circuit Low Input |
|
Comes on | DTC Stored |
| P0103 | Mass or Volume Air Flow Circuit High Input |
|
Comes on | DTC Stored |
| P0110 | Intake Air Temperature Circuit |
|
Comes on | DTC Stored |
| P0112 | Intake Air Temperature Circuit Low Input |
|
Comes on | DTC Stored |
| P0113 | Intake Air Temperature Circuit High Input |
|
Comes on | DTC Stored |
| P0115 | Engine Coolant Temperature Circuit |
|
Comes on | DTC Stored |
| P0116 | Engine Coolant Temperature Circuit Range / Performance Problem | ECT sensor | Comes on | DTC Stored |
| P0117 | Engine Coolant Temperature Circuit Low Input |
|
Comes on | DTC Stored |
| P0118 | Engine Coolant Temperature Circuit High Input |
|
Comes on | DTC Stored |
| P0120 | Throttle / Pedal Position Sensor / Switch "A" Circuit |
|
Comes on | DTC Stored |
| P0121 | Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem | TP sensor (built into throttle body) | Comes on | DTC Stored |
| P0122 | Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input |
|
Comes on | DTC Stored |
| P0123 | Throttle / Pedal Position Sensor / Switch "A" Circuit High Input |
|
Comes on | DTC Stored |
| P0125 | Insufficient Coolant Temperature for Closed Loop Fuel Control |
|
Comes on | DTC Stored |
| P0128 | Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) |
|
Comes on | DTC Stored |
| P0136 | Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2) |
|
Comes on | DTC Stored |
| P0137 | Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2) |
|
Comes on | DTC Stored |
| P0138 | Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2) |
|
Comes on | DTC Stored |
| P0171 | System Too Lean (Bank 1) |
|
Comes on | DTC Stored |
| P0172 | System Too Rich (Bank 1) |
|
Comes on | DTC Stored |
| P0220 | Throttle / Pedal Position Sensor / Switch "B" Circuit |
|
Comes on | DTC Stored |
| P0222 | Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input |
|
Comes on | DTC Stored |
| P0223 | Throttle / Pedal Position Sensor / Switch "B" Circuit High Input | TP sensor (built into throttle body)
|
Comes on | DTC Stored |
| P0300 | Random / Multiple Cylinder Misfire Detected |
|
Comes on or flashes | DTC Stored |
| P0301 | Cylinder 1 Misfire Detected | Same as DTC P0300 | Comes on or flashes | DTC Stored |
| P0302 | Cylinder 2 Misfire Detected | Same as DTC P0300 | Comes on or flashes | DTC Stored |
| P0303 | Cylinder 3 Misfire Detected | Same as DTC P0300 | Comes on or flashes | DTC Stored |
| P0304 | Cylinder 4 Misfire Detected | Same as DTC P0300 | Comes on or flashes | DTC Stored |
| P0325 | Knock Sensor 1 Circuit |
|
Comes on | DTC Stored |
| P0327 | Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) |
|
Comes on | DTC Stored |
| P0328 | Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) |
|
Comes on | DTC Stored |
| P0335 | Crankshaft Position Sensor "A" Circuit |
|
Comes on | DTC Stored |
| P0339 | Crankshaft Position Sensor "A" Circuit Intermittent | Same as DTC P0335 | Does not come on | DTC Stored |
| P0340 | Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor) |
|
Comes on | DTC Stored |
| P0341 | Camshaft Position Sensor "A" Circuit Range / Performance (Bank 1 or Single Sensor) | Same as DTC P0340 | Comes on | Comes on |
| P0351 | Ignition Coil "A" Primary / Secondary Circuit |
|
Comes on | DTC Stored |
| P0352 | Ignition Coil "B" Primary / Secondary Circuit | Same as DTC P0351 | Comes on | DTC Stored |
| P0353 | Ignition Coil "C" Primary / Secondary Circuit | Same as DTC P0351 | Comes on | DTC Stored |
| P0354 | Ignition Coil "D" Primary / Secondary Circuit | Same as DTC P0351 | Comes on | DTC Stored |
| P0420 | Catalyst System Efficiency Below Threshold (Bank 1) |
|
Comes on | DTC Stored |
| P043E | Evaporative Emission System Reference Orifice Clog Up |
|
Comes on | DTC Stored |
| P043F | Evaporative Emission System Reference Orifice High Flow |
|
Comes on | DTC Stored |
| P0441 | Evaporative Emission Control System Incorrect Purge Flow |
|
Comes on | DTC Stored |
| P0450 | Evaporative Emission Control System Pressure Sensor / Switch |
|
Comes on | DTC Stored |
| P0451 | Evaporative Emission Control System Pressure Sensor Range / Performance |
|
Comes on | DTC Stored |
| P0452 | Evaporative Emission Control System Pressure Sensor / Switch Low Input |
|
Comes on | DTC Stored |
| P0453 | Evaporative Emission Control System Pressure Sensor / Switch High Input |
|
Comes on | DTC Stored |
| P0455 | Evaporative Emission Control System Leak Detected (Gross Leak) |
|
Comes on | DTC Stored |
| P0456 | Evaporative Emission Control System Leak Detected (Very Small Leak) | Same as DTC P0455 | Comes on | DTC Stored |
| P0500 | Vehicle Speed Sensor "A" |
|
Comes on | DTC Stored |
| P0504 | Brake Switch "A" / "B" Correlation |
|
Does not come on | DTC Stored |
| P0505 | Idle Control System Malfunction |
|
Comes on | DTC Stored |
| P0560 | System Voltage |
|
Comes on | DTC Stored |
| P0601 | Internal Control Module Memory Check Sum Error | ECM | Comes on | DTC Stored |
| P0604 | Internal Control Module Random Access Memory (RAM) Error | ECM | Comes on | DTC Stored |
| P0606 | ECM / PCM Processor |
|
Comes on | DTC Stored |
| P0607 | Control Module Performance | ECM | Comes on | DTC Stored |
| P0617 | Starter Relay Circuit High |
|
Comes on | DTC Stored |
| P0630 | VIN not Programmed or Mismatch - ECM /PCM | ECM | Comes on | DTC Stored |
| P0657 | Actuator Supply Voltage Circuit / Open | ECM | Comes on | DTC Stored |
| P2102 | Throttle Actuator Control Motor Circuit Low |
|
Comes on | DTC Stored |
| P2103 | Throttle Actuator Control Motor Circuit High |
|
Comes on | DTC Stored |
| P2111 | Throttle Actuator Control System - Stuck Open |
|
Comes on | DTC Stored |
| P2112 | Throttle Actuator Control System - Stuck Closed | Same as DTC P2111 | Comes on | DTC Stored |
| P2118 | Throttle Actuator Control Motor Current Range / Performance |
|
Comes on | DTC Stored |
| P2119 | Throttle Actuator Control Throttle Body Range / Performance |
|
Comes on | DTC Stored |
| P2120 | Throttle / Pedal Position Sensor / Switch "D" Circuit |
|
Comes on | DTC Stored |
| P2121 | Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance |
|
Comes on | DTC Stored |
| P2122 | Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input |
|
Comes on | DTC Stored |
| P2123 | Throttle / Pedal Position Sensor / Switch "D" Circuit High Input |
|
Comes on | DTC Stored |
| P2125 | Throttle / Pedal Position Sensor / Switch "E" Circuit |
|
Comes on | DTC Stored |
| P2127 | Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input |
|
Comes on | DTC Stored |
| P2128 | Throttle / Pedal Position Sensor / Switch "E" Circuit High Input |
|
Comes on | DTC Stored |
| P2135 | Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation |
|
Comes on | DTC Stored |
| P2138 | Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation |
|
Comes on | DTC Stored |
| P2195 | Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) |
|
Comes on | DTC Stored |
| P2196 | Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) | Same as DTC P2195 | Comes on | DTC Stored |
| P2238 | Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1) |
|
Come on | DTC Stored |
| P2239 | Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1) | Same as DTC P2238 | Come on | DTC Stored |
| P2252 | Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1) | Same as DTC P2238 | Comes on | DTC Stored |
| P2253 | Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1) | Same as DTC P2238 | Comes on | DTC Stored |
| P2401 | Evaporative Emission System Leak Detection Pump Control Circuit Low |
|
Comes on | DTC Stored |
| P2402 | Evaporative Emission System Leak Detection Pump Control Circuit High |
|
Comes on | DTC Stored |
| P2419 | Evaporative Emission System Switching Valve Control Circuit Low |
|
Comes on | DTC Stored |
| P2420 | Evaporative Emission System Switching Valve Control Circuit High |
|
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) |
|
Comes on | DTC Stored |
| HINT: *1: Does not apply to Mexican models *2: Indicates a malfunction related to the primary circuit |
||||
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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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