New Holland 38 – TRANS: Shuttled to Reverse Without Wheel Speed Signal

The machine shifted to reverse mode when no wheel speed signal was detected. This indicates a loss of input from the system that monitors wheel speed, leading to unintended gear engagement.

1. 1

   Wheel speed sensor

2. 2

   Signal wiring to the controller

3. 3

   Controller input for wheel speed

1. 1

   Inspect

   Check the wheel speed sensor for damage or disconnection.

2. 2

   Test

   Verify the signal wiring between the wheel speed sensor and the controller for continuity and proper connection.

3. 3

   Evaluate

   Assess the controller's input for wheel speed to determine if it is receiving or processing the signal correctly.