P0121

P0121

Diagnosis information - Control unit DME (DFI)

Accelerator pedal Potentiometer implausible

Diagnostic conditions
- Ignition on > 3 Second(s)
- then Accelerator pedal complete depress > 3 Second(s)
- then Accelerator pedal complete undo
- then Idle speed > 10 Second(s)

Possible fault causes
- Short circuit to B+/ground/between lines or open circuit in the lines CLOSED Potentiometer 1 or 2
- Accelerator pedal Potentiometer 1 or 2 Faulty

Fault setting condition(s)
- The two potentiometer values differ too greatly from each other
- It is not clear which value is incorrect.

Fault effects
- no engine's throttle response, engine speed 1000 1/min