Volvo Engine D11L (Tier 4) Fault Code: PID 158 FMI 3 ECU Battery Potential

Volvo Engine D11L (Tier 4) Fault Code: PID 158 FMI 3 ECU Battery Potential

CONTROL UNIT:
Engine ECU

DETECTION CONDITIONS:
The engine control unit (E-ECU) registers that the voltage is above 39.9 V.

SYMPTOM:
Possible damage on E-ECU connected components due to high voltage.

POSSIBLE CAUSES:
1. Defective alternator.
2. External battery charger.

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