Volvo Engine D11L (Tier 4) Fault Code: SID 70 FMI 5 Air Inlet Heater Driver #1

Volvo Engine D11L (Tier 4) Fault Code: SID 70 FMI 5 Air Inlet Heater Driver #1

CONTROL UNIT:
Engine ECU

DETECTION CONDITIONS:
The engine control unit (E-ECU) registers that the voltage is between 7 V and 22 V ( 0.30 x Ubat and 0.91 x Ubat).

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

POSSIBLE CAUSES:
1. Defective fuse on feed cable.
2. Open circuit in preheating coil.
3. Open circuit in cable harness.