OBD codes / P0123
P0123
ModerateThrottle/Pedal Position Sensor A Circuit High
Get it looked at soon to avoid further wear.
Likely causes
- faulty throttle position sensor
- short to voltage
- connector fault
Common fixes
- inspect wiring
- replace the TPS/throttle body
Seeing P0123 on your car? Get a diagnosis specific to your exact year, make and model.
Diagnose P0123 for my vehicleGeneric OBD-II reference. Manufacturer-specific behavior varies — confirm with a scan tool and, for safety-related codes, a professional inspection.