New Holland CP – Transmission Control Unit (TCU) or Central Controller (XCM): Clutch Pedal required / Depress The Clutch Pedal To Re-Enable The Transmission

The transmission controller has disabled the transmission and requires the operator to depress the clutch pedal (or cycle the shuttle lever to neutral) to re-enable it. This is triggered by operator error (e.g., shifting without the clutch, excessive speeds) or system faults such as a faulty clutch pedal potentiometer, shuttle lever neutral switch, wiring harness issue, or central controller fault.

• TM115
• TM120
• TM135
• TM165
• TM175
• TM190
• TS90
• TS100
• TS115
• 7740
• 7840
• T6.6020
• T6.6040
• T6.6060
• MXM Series

1. 1

   Perform a basic reset by depressing the clutch pedal fully to the floor or cycling the shuttle lever to neutral to rule out operator sequence error.

2. 2

   Access the diagnostic menu to check for accompanying potentiometer voltage codes (e.g., F11/2011, F12/2012, or E11).

3. 3

   Test the clutch pedal potentiometer by checking the 5-volt reference circuit and verifying that the voltage sweeps smoothly as the pedal is depressed.

4. 4

   Test the clutch pedal disconnect switch for continuity (continuity between the two central pins when not activated, and between the two outer pins when activated).

5. 5

   Inspect the wiring harness and connectors between the clutch pedal potentiometer, shuttle lever neutral switch, and the central controller for shorts, open circuits, or corrosion.

1. 1

   Disconnect Battery

   Always disconnect the battery before servicing electrical transmission components.

2. 2

   Replace Faulty Sensor

   Locate the clutch pedal potentiometer (or disconnect switch) at the base of the clutch pedal assembly. Unplug the harness, unbolt the sensor, and install the replacement.

3. 3

   Inspect Mechanical Linkage

   Ensure the clutch pedal spring is intact and the pedal returns fully to the top of its travel.

4. 4

   Perform Transmission / Clutch Calibration

   Warm the transmission oil (must be above 10°C/50°F). Enter the transmission calibration mode (usually by holding the upshift and downshift buttons while starting the engine). Navigate to the clutch calibration channel (e.g., HA Clutch Pedal Position). Depress the clutch pedal, select forward on the shuttle lever, and gradually release the clutch pedal to teach the controller the engagement points.