Volvo Engine D13F Fault Code: PID 45 FMI 5 Inlet Air Heater Status

Volvo Engine D13F Fault Code: PID 45 FMI 5 Inlet Air Heater Status

CONTROL UNIT:
Engine ECU

DETECTION CONDITIONS:
The engine control unit (E-ECU) registers that the voltage is between 8 V and 16 V (0.33 x Ubat and 0.66 x Ubat).

SYMPTOM:
1. Preheating not functioning.
2. Difficult to start in extreme cold.

POSSIBLE CAUSES:
1. Open circuit.
2. Defective relay.
3. Short circuit to higher voltage.

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