Ford P0123 OBD-II Trouble Code Definition:
P0123 Throttle Position Sensor/Accelerator Position Pedal Circuit High Input
P0123 Ford OBD-II Trouble CodeDescription:
OBD Trouble Code P0123
Throttle/Pedal Position Sensor/Switch “A” Circuit High
What does the code mean? OBD-ii Code P0123 definition:
A P0123 code means that the the car’s computer has detected that the TPS (throttle position sensor) is reporting too high a voltage.
A P0123 code means that the the car’s computer has detected that the TPS (throttle position sensor) is reporting too high a voltage.
Symptoms Sumptoms of OBD code P0123
Rough idle High idle Surging other symptoms may also be present
Rough idle High idle Surging other symptoms may also be present
Causes Causes of the OBD-II code P0123
A code P0123 may mean that one or more of the following has happened: TPS not mounted securely TPS circuit short to ground or another wire Faulty TPS Damaged computer (PCM)
A code P0123 may mean that one or more of the following has happened: TPS not mounted securely TPS circuit short to ground or another wire Faulty TPS Damaged computer (PCM)
Solutions If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back. If there are symptoms such as the engine is stumbling or hesitating, carefully inspect all wiring and connectors that lead to the TPS. More than likely the problem is with the TPS wiring. Check the voltage at the TPS (refer to a service manual for your vehicle for this specific information). If the voltage spikes or is too high (over 4.65 volts with key on, engine off), then that is indicative of a problem. Carefully trace each wire from the TPS wiring harness to check for breaks, rubbing against other components, etc.