Volvo Engine D12D AE E3 (Tier 3) Fault Code: PID 45 FMI 3 Inlet Air Heater Status

Volvo Engine D12D AE E3 (Tier 3) Fault Code: PID 45 FMI 3 Inlet Air Heater Status

DETECTION CONDITIONS:
The engine control unit (E-ECU) registers:
1. Output activated.
2. Short-circuit to Ubat. (EB25)

SYMPTOM:
1. Preheating not functioning.
2. White smoke during cold starts.
3. Difficult to start in extreme cold.

POSSIBLE CAUSES:
1. Signal line between relay and E-ECU short-circuited to Ubat.
2. Defective relay.