OBD codes / P0338
P0338
SeriousCrankshaft Position Sensor A Circuit High
Address promptly — can worsen or affect drivability.
Likely causes
- faulty position sensor
- wiring or connector fault
- damaged reluctor/tone ring
Common fixes
- replace the affected position sensor
- inspect wiring and the tone ring
Seeing P0338 on your car? Get a diagnosis specific to your exact year, make and model.
Diagnose P0338 for my vehicleGeneric OBD-II reference. Manufacturer-specific behavior varies — confirm with a scan tool and, for safety-related codes, a professional inspection.