PowertrainP0318
SeriousSeverity: Serious - have it checked soon
Rough Road Sensor A Signal Circuit
Key terms: Catalytic converter: cleans the exhaust gases · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions
1What it means in plain English
This range covers ignition and engine-speed signals, including misfires and crankshaft or camshaft position sensors.
2Common causes
- Worn or fouled spark plug
- Faulty ignition coil
- Vacuum or intake air leak
- Low fuel pressure
- Faulty crankshaft or camshaft position sensor
- Low engine compression
3Can I drive?
A failing crankshaft or camshaft sensor can cut the engine without warning, and a flashing check-engine light points to a misfire that can damage the catalytic converter. If the light is flashing, stop as soon as it is safe and have the car towed. Otherwise drive gently to a workshop; if it stalls or will not restart, have it towed.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 29
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P0318 | Rough Road Sensor A Signal Circuit SAE | Powertrain |
| BAIC Motor | P0318 | Deteced Misfire on Dad Loop Brand | Powertrain |
| Mercedes-Benz | P0318 | Rough Road Sensor A Signal Circuit SAE | Powertrain |
| BYD | P0318 | Rough road hardware not present Brand | Powertrain |
| Chery | P0318 | Rough Road Sensor A Signal Circuit Brand | Powertrain |
| Daewoo | P0318 | Rough Road Sensor A Signal Circuit Brand | Powertrain |
| DFFS | P0318 | Rough Road Sensor A Signal Circuit Brand | Powertrain |
| DFFX | P0318 | Rough Road Sensor A Signal Circuit Brand | Powertrain |
| DFXK | P0318 | Rough Road Sensor A Signal Circuit Brand | Powertrain |
| EOBD | P0318 | Kareda tee anduri 'A' signaaliahel Brand | Powertrain |
| Geely | P0318 | Rough Road Sensor A Signal Circuit Brand | Powertrain |
| GM | P0318 | Rough road sensor circuit Brand | Powertrain |
| Great Wall | P0318 | Deteced Misfire on Dad Loop Brand | Powertrain |
| Hafei | P0318 | Rough Road Sensor A Signal Circuit Brand | Powertrain |
| Holden | P0318 | Rough Road Sensor Circuit Brand | Powertrain |
| Honda | P0318 | Rough Road Sensor A Signal Circuit SAE | Powertrain |
| Hyundai | P0318 | Rough Road Sensor A Signal Circuit SAE | Powertrain |
| Isuzu | P0318 | Rough Road Sensor A Signal Circuit SAE | Powertrain |
| Land Rover | P0318 | Rough road sensor A signal circuit Brand | Powertrain |
| Mitsubishi | P0318 | APS(main/sub) correlation Brand | Powertrain |
| Opel | P0318 | Rough road sensor circuit Brand | Powertrain |
| Peugeot | P0318 | Rough Road Sensor A Signal Circuit SAE | Powertrain |
| Proton | P0318 | APS(main/sub) correlation Brand | Powertrain |
| Saab | P0318 | Rough road sensor circuit Brand | Powertrain |
| MG (SAIC) | P0318 | Rough Road Sensor A Signal Circuit Brand | Powertrain |
| Smart | P0318 | Rough Road Sensor A Signal Circuit SAE | Powertrain |
| Tata | P0318 | Rough Road Sensor 'A' Signal Circuit Brand | Powertrain |
| Toyota | P0318 | Rough Road Sensor A Signal Circuit Brand | Powertrain |
| Volkswagen | P0318 | Rough-road torque limit signal from ABS: electrical failure; Short to plus Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Related codes
Browse Pxxx codes or P031xx codes.