Description:

This error code, TID 520959.14, indicates that shifting the transmission is not permitted because no valid operator presence signal is detected. This may occur if the operator is not seated or if there is an electrical fault in the circuit of the operator presence switch.

Reaction:

The control software will prevent shifting the transmission, making transmission operation impossible.

Recommendations:

• Ensure Operator Presence: Verify that the operator is properly seated during the operation. If the operator is not seated, the transmission will not shift.
• Inspect Operator Presence Switch: Check the operator presence switch for any electrical faults. Ensure the switch is functioning correctly and replace if necessary.
• Inspect Wiring and Connections: Examine the wiring and connections related to the operator presence switch. Repair or replace any damaged or loose connections.
• Check Seat Sensor: Verify the seat sensor is operational and properly connected. Replace the sensor if it is faulty.

Note:

Regular checks of the operator presence system and related circuits are essential to ensure reliable vehicle operation and safety.