EPC 524029.04 – B65 Clutch Pedal Potentiometer, Voltage at Channel 1 Too Low

EPC 524029.04 (EPC )

Code: 524029.04



This error code, EPC 524029.04, is generated when the control unit measures a voltage of less than 0.3 volts at the signal input from channel 1 of the clutch pedal potentiometer (B65, lead 6114). This indicates a problem at the signal lead or with the potentiometer supply voltage.


When this error is detected, the system may not accurately interpret the clutch pedal position, leading to potential issues with clutch operation and overall vehicle performance.


Inspect Wiring and Connections:

  • Check the wiring and connections to the clutch pedal potentiometer for any signs of damage, loose connections, or corrosion. Pay special attention to the signal lead and supply voltage connections. Repair or replace as necessary.

Test Clutch Pedal Potentiometer:

  • Use diagnostic tools to test the clutch pedal potentiometer (B65) for proper functionality. Replace the potentiometer if it is found to be defective.

Verify Signal Voltage:

  • Measure the voltage at channel 1 (lead 6114) to ensure it is within the correct range (above 0.3 volts). Investigate and resolve any sources of insufficient voltage.

Check Supply Voltage:

  • Ensure that the supply voltage to the potentiometer is stable and within the correct range.

Reset and Test System:

  • After addressing the issues, reset the system and test the clutch pedal potentiometer to ensure it operates correctly and that the error code does not reoccur.


Maintaining stable signal and supply voltages is crucial for the accurate operation of the clutch pedal potentiometer. Regular inspections and maintenance help prevent voltage issues.

Control Units: John Deere

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