Volvo Engine D12D AE E3 (Tier 3) Fault Code: PID 45 FMI 5 Inlet Air Heater Status

DETECTION CONDITIONS:
The engine control unit (E-ECU) registers:
1. Output off
2. Open circuit (EB25)

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

POSSIBLE CAUSES:
1. Defective fuse for feed voltage to relay.
2. Open circuit on cable between E-ECU and relay.
3. Open circuit in relay.
4. Open circuit on feed cable to relay.