Description:

This error code is triggered if the control software receives a switch combination from an undefined position of the reverse drive lever over an extended period. This condition occurs when signals from a direction switch (forward or reverse) are received together with signals from a movement switch or power-zero switch for too long. It may also indicate that the reverse drive lever is being held in an intermediate position for an extended period.

Reaction:

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

Recommendations:

• Check Lever Positioning: Ensure the reverse drive lever is not being held in an intermediate position for too long.
• Inspect Switches: Verify the proper function of the power-zero switch, move switch, and direction switches. Replace any faulty switches.
• Test Control Software: Use diagnostic tools to check the control software for errors in interpreting switch positions.
• Examine Wiring and Connections: Look for any issues with wiring and connections that might cause incorrect signal combinations.
• Seek 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 critical for vehicle operation. Timely maintenance and inspections can help prevent these faults.