John Deere 524173.07 – Main Control Module (OIC - Operator Interface Control / Cab Module), EPC, UIC, TIA, or PTQ: Clutch Pedal Potentiometer, Adjustment Error

The control unit detects a constant voltage signal from a lightly applied clutch pedal over a continuous period of at least 10 minutes, indicating a mechanical adjustment error. It can also occur if the reverse drive lever is in gear while the clutch pedal potentiometer is faulty, or if the enable pressure sensor detects a pressure lower than the system pressure.

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 5080R
• 5090R
• 5100R
• 5080RN
• 5090RN
• 5100RN
• 6230
• 6330
• 6430
• 7715
• 7815
• 7720
• 7820
• 7920

1. 1

   Perform a system reset by placing the tractor in park, shutting off the engine, and restarting to see if the active code clears

2. 2

   Cycle the clutch pedal several times to see if the sensor sweeps correctly or if the code clears

3. 3

   Inspect the physical clutch pedal linkage to ensure it is properly adjusted to manufacturer specifications and is not hanging up or resting slightly depressed

4. 4

   Use a diagnostic tool to confirm that the voltage signals from the clutch pedal potentiometer (Sensor B65) are within the expected range

5. 5

   Inspect all wiring harnesses and connectors related to the clutch pedal potentiometer, reverse drive lever sensors, and enable pressure sensor for signs of damage, corrosion, or loose pins

6. 6

   Verify the operation of the enable pressure sensor (Sensor B105) to ensure it is detecting correct pressure levels

1. 1

   Adjust the Pedal

   If the pedal is resting slightly engaged, adjust the clutch pedal linkage to factory specifications so the potentiometer reads a true 'zero' when released.

2. 2

   Replace the Potentiometer

   If the clutch pedal potentiometer (B65) is physically damaged, has a dead spot, or fails the voltage sweep test, remove and replace it.

3. 3

   Replace Associated Sensors

   If the enable pressure sensor (B105) or reverse drive lever sensors are providing incorrect readings and wiring is intact, replace the faulty sensor.

4. 4

   Repair Wiring

   Splice or replace any damaged wiring or connectors found during the visual inspection.

5. 5

   Software Update

   Ensure the tractor's control software is up-to-date, as updates can sometimes correct how the module interprets signals from the clutch pedal potentiometer.

6. 6

   Calibrate and Test

   After replacing components, clear the codes, perform any required transmission/pedal calibrations via the diagnostic monitor, and test drive to ensure the code does not return.