Description:

This operator information (diagnostic trouble code), EPC 523961.07, is generated when the EPC control unit detects an active signal from the park lock switch (range shift lever in park position) while the reverse drive lever is not in neutral position. This can also occur when the operator moves the reverse drive lever to the forward or reverse position while the range shift lever is in park position.

Reaction:

When this error is detected, the system alerts the operator about the incorrect position of the reverse drive lever, potentially preventing the vehicle from moving while the park lock is engaged.

Recommendations:

Verify Reverse Drive Lever Position:

• Ensure that the reverse drive lever is in the neutral position when the park lock is engaged.

Inspect Park Lock Switch:

• Check the functionality of the park lock switch to ensure it accurately detects the park position of the range shift lever.

Inspect Wiring and Connections:

• Inspect the wiring and connections to the reverse drive lever and park lock switch for any signs of damage, loose connections, or corrosion. Repair or replace as necessary.

Educate Operator:

• Ensure that the operator understands the correct procedure for using the reverse drive lever and park lock.

Reset and Test System:

• After addressing the issues, reset the system and test the reverse drive lever and park lock to ensure proper operation and that the error code does not reoccur.

Note:

Proper usage and understanding of the reverse drive lever and park lock mechanisms are essential for safe vehicle operation. Regular maintenance and inspections help ensure accurate functioning.