Volvo Engine D12D AE E3 (Tier 3) Fault Code: PID 45 FMI 4 Inlet Air Heater Status
Volvo Engine D12D AE E3 (Tier 3) Fault Code: PID 45 FMI 4 Inlet Air Heater Status
DETECTION CONDITIONS:
The engine control unit (E-ECU) registers:
1. Output off.
2. Short-circuit to frame ground. (EB25)
SYMPTOM:
Induction air is warm due to continuously activated relay.
POSSIBLE CAUSES:
1. Frame ground cable between relay and E-ECU short-circuited.
2. Defective relay.
