Volvo Engine D12D AE E3 (Tier 3) Fault Code: PID91 FMI 9 Accelerator Pedal Position, %
Volvo Engine D12D AE E3 (Tier 3) Fault Code: PID91 FMI 9 Accelerator Pedal Position, %
DETECTION CONDITIONS:
The engine control unit (E-ECU) registers that the throttle pedal signal is missing or is not arriving often enough.
SYMPTOM:
None
POSSIBLE CAUSES:
1. Defective throttle position sensor.
2. Defective information bus (SAE J1708).
3. Defective vehicle control unit (V-ECU).
