Fault Code P0318
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0318
Rough Road Sensor 'A' Signal Circuit
This code indicates a fault in the circuit of the 'A' Rough Road Sensor, which is used to disable the misfire monitoring system under certain driving conditions. This fault does not directly affect engine performance.
Part Details
Part Name
Rough Road Sensor
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪300 - ₪900
Engine Location
Chassis
Symptoms
- Check Engine Light on
- Stability control system may behave differently
- Inconsistent cruise control operation
- No noticeable driving symptoms
Possible Causes
- 1Faulty Rough Road Sensor
- 2Short or damaged wiring to the system
- 3Loose or corroded connector
- 4Faulty Engine Control Module (ECM/PCM)
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