Description:

This error code is generated if the control software receives signals from an undefined position of the reverse drive lever (intermediate position) over an extended period. It occurs when one park lock switch (corner park or center park) signal is received along with the neutral switch or power zero switch signal for too long. This code can also be triggered if the reverse drive lever is held in an intermediate position for too long.

Reaction:

The control software will have limited or no functionality of the reverse drive lever, affecting the vehicle’s ability to change directions.

Recommendations:

• Check Lever Positioning: Ensure that the reverse drive lever is not being held in an intermediate position for too long.
• Inspect Switches: Verify the proper operation of the park lock switch, neutral switch, and power zero switch. Replace any switches that are faulty.
• Test Control Software: Use diagnostic tools to check for errors in the control software’s interpretation of switch positions.
• Examine Wiring and Connections: Look for any issues with wiring and connections that might cause incorrect signal combinations.
• Consult Technical Support: If the issue persists, contact John Deere technical support for further diagnostics and resolution.

Note:

Proper functioning of the reverse drive lever and associated switches is essential for vehicle control and safety. Regular inspections and maintenance can help prevent these faults.