Volvo Engine D13F Fault Code: PID 172 FMI 5 Air Inlet Temperature

Volvo Engine D13F Fault Code: PID 172 FMI 5 Air Inlet Temperature

CONTROL UNIT:
Engine ECU

DETECTION CONDITIONS:
The engine control unit (E-ECU) registers that the voltage is above 4.88 V.

SYMPTOM:
Machine may be difficult to start in cold weather.

POSSIBLE CAUSES:
1. Signal line short-circuited to higher voltage.
2. Open circuit.