Description:

This error code, EPC 523969.11, is generated when the EPC control unit detects an activated gear selector switch (upshift or downshift) during the starting procedure. This indicates that the gear selector switch is not in the correct position during startup, which could be due to a faulty switch or an operator error.

Reaction:

When this error is detected, the system may prevent the vehicle from starting or issue a warning to ensure the gear selector is in the correct position before startup.

Recommendations:

Inspect Gear Selector Switch:

• Check the condition and functionality of the gear selector switch (S102/S158). Replace the switch if it is found to be defective.

Verify Switch Position:

• Ensure that the gear selector switch is in the neutral position during startup.

Inspect Wiring and Connections:

• Inspect the wiring and connections to the gear selector 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 starting the vehicle and the importance of the gear selector switch being in the neutral position.

Reset and Test System:

• After addressing the issues, reset the system and test the gear selector switch to ensure it operates correctly and that the error code does not reoccur.

Note:

Proper positioning of the gear selector switch during startup is crucial for safe vehicle operation. Regular maintenance and inspection can prevent issues related to voltage discrepancies.