Description:

This error code, EPC 001079.03, is generated when the EPC measures more than 5.2 volts at the positive lead of the power supply to the 5-volt components (clutch pedal potentiometer B65, accelerator pedal potentiometer B79, hand throttle potentiometer B96, and enable pressure sensor B105). This indicates that the circuit is shorted to a positive supply lead or there is an internal interruption at the control unit.

Reaction:

When this error is detected, the affected components may receive too high a voltage, potentially causing malfunction or damage to the clutch, accelerator, hand throttle, and pressure sensor operations.

Recommendations:

Inspect for Short Circuits:

• Check the 5-volt power supply circuit for any signs of shorting to a positive supply lead. Repair any detected faults.

Verify Control Unit:

• Inspect the control unit for any internal interruptions or faults that could be causing the high voltage. Replace the control unit if necessary.

Inspect Wiring and Connections:

• Check the wiring and connections to the 5-volt components (B65, B79, B96, B105) for any signs of damage or loose connections. Repair or replace as necessary.

Test Affected Components:

• Use diagnostic tools to test the clutch pedal potentiometer, accelerator pedal potentiometer, hand throttle potentiometer, and enable pressure sensor for any signs of overvoltage damage.

Reset and Test System:

• After addressing the issues, reset the system and monitor the voltage levels to ensure they remain within the normal operating range.

Note:

Regular inspection and maintenance of the 5-volt power supply circuit and components can help prevent overvoltage issues and ensure reliable operation.