VOLVOUU Engine D13F Fault Code: PID 158 FMI 4 ECU Battery Potential
CONTROL UNIT:
Engine ECU
DETECTION CONDITIONS:
The engine control unit (E-ECU) registers that the voltage is below 5.4 V.
SYMPTOM:
The engine can not start.
POSSIBLE CAUSES:
1. Defective alternator.
2. Defective battery, battery cables.
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