Massey Ferguson 00.1.37 – Dash: Issue With Signal Voltage From Clutch Pedal Sensor

This indicates that the controller is receiving an out-of-range, missing, or erratic electrical voltage signal from the clutch pedal position sensor (potentiometer).

• 5710SL
• 5711SL
• 5712SL
• 5713SL
• T4
• 4707
• 4708
• 4709
• 4710
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626
• 7714
• 7715
• 7716
• 7718
• 7719
• 7720
• 7722
• 7724
• 7726

1. 1

   Check Input Voltage: Verify that the sensor is receiving the correct supply voltage from the Dash module (typically a 10-30V input depending on the specific tractor's electrical architecture).

2. 2

   Check Output Signal: Back-probe the sensor to monitor the output signal voltage while depressing the clutch pedal. A healthy potentiometer should provide a smooth, linear voltage sweep (typically between 0.5V and 4.5V).

3. 3

   Inspect Wiring and Connectors: Check the wiring harness between the clutch pedal sensor and the instrument panel for chafing, corrosion, or loose pins. The service manual notes that shorts to +12V or ground will trigger related signal voltage codes.

4. 4

   Check Top-of-Clutch (TOC) Switch: Ensure the physical pedal switch isn't mechanically stuck or locked in the open position.

1. 1

   Disconnect Battery

   Always disconnect the battery before servicing electrical sensors to prevent short circuits.

2. 2

   Remove the Faulty Sensor

   Locate the clutch pedal sensor/potentiometer on the clutch pedal assembly linkage. Disconnect the electrical harness and unbolt the sensor bracket/fork.

3. 3

   Install the New Sensor

   Mount the replacement OEM sensor and reconnect the wiring harness. Ensure the mechanical linkage or fork is properly aligned with the pedal pivot.

4. 4

   Perform Sensor Calibration

   According to the Massey Ferguson service manual (e.g., MF 5700 SL / 6700 S series), calibration of the clutch pedal potentiometer must be carried out every time the clutch pedal switch, sensor, or instrument panel is replaced or modified. This is done via the tractor's onboard diagnostic screen or dealer service tool.

5. 5

   Clear Codes and Test

   Clear the 00.1.37 fault code from the Dash module and perform a road test to verify smooth transmission engagement and ensure the code does not return.