Diagnostic Trouble Code (DTC) Information

ECM-9180 ACCELERATOR PEDAL (AP) POSITION SENSOR
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION

Condition
The electronic throttle module has registered a fault in the PWM signal from the accelerator pedal (AP) position sensor. Diagnostic trouble code (DTC) ECM-9180 is stored in the engine control module (ECM).

Substitute value
- the accelerator pedal (AP) is ignored when braking.
The following only applies in combination with diagnostic trouble codes (DTC) ECM-911A and/or ECM-912A:
- the throttle unit in mechanical limp home mode, the throttle disc in the fixed position.

Possible source
- short-circuit to supply voltage in the signal cable
- short-circuit to ground in the signal cable
- open-circuit in the signal cable
- loose connections
- defective accelerator pedal (AP) position sensor
- defective engine control module (ECM)
- defective throttle unit.

Fault symptom[s]
- the accelerator pedal (AP) is ignored when braking
- the ETS warning lamp lights (C70 and S/V70 -2000 only).
The following only applies in combination with diagnostic trouble codes (DTC) ECM-911A and/or ECM-912A:
- uneven idle
- jerks during engine braking
- very poor accelerator response
- maximum speed approximately 50 km/h.