Description:

This error code, EPC 000158.04, is generated when the control unit registers a supply voltage of less than 9 volts. Low supply voltage can indicate an issue with the battery, wiring, or alternator.

Reaction:

When this error is detected, the control unit and other electronic components may not receive adequate power to function correctly. This can lead to poor performance, unexpected shutdowns, or malfunctioning of various systems.

Recommendations:

Check Battery Charge:

• Measure the voltage of the battery. Ensure it is fully charged and in good condition. Replace the battery if it is unable to hold a charge.

Inspect Alternator Output:

• Verify that the alternator is providing sufficient voltage to charge the battery and power the control unit. Replace or repair the alternator if it is undercharging.

Examine Electrical Connections:

• Check all electrical connections for signs of corrosion, loose connections, or damage. Repair or replace any faulty connections.

Inspect Wiring:

• Examine the wiring between the battery, alternator, and control unit for any damage or faults. Repair or replace any defective wiring.

Reset and Monitor System:

• After addressing the issues, reset the control unit and monitor the supply voltage to ensure it remains within the normal range.

Note:

Regular maintenance of the electrical system, including checking battery health, inspecting connections, and ensuring proper alternator function, is essential to prevent low voltage issues and ensure reliable operation of electronic components.