Volvo Engine D11L (Tier 4) Fault Code: PID 91 FMI 9 Accelerator Pedal Position, %

Volvo Engine D11L (Tier 4) Fault Code: PID 91 FMI 9 Accelerator Pedal Position, %

CONTROL UNIT:
Engine ECU

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:
Open circuit on bus communication (cable harness).