Description:

This diagnostic trouble code (TCU 524155.05) is generated if the control unit registers a resistance at the CR proportional solenoid valve that does not correspond with the switch status of the reverse clutch. This indicates that the circuit of the proportional solenoid valve is open. If diagnostic trouble code TCU 524154.05 is also stored, it indicates a general problem with the supply voltage of the proportional solenoid valves (lead 6046).

Reaction:

When this error code is detected, the equipment may experience issues with the operation of the reverse clutch, leading to potential performance problems. The system might enter a protective mode to prevent further issues, resulting in limited operational capabilities or warnings displayed to the operator.

Recommendations:

1. Address Related DTCs:

• Process TCU 524154.05 First: Resolve any issues related to the general supply voltage before addressing this code.

2. Inspect Solenoid Valve Circuit:

• Check for Open Circuit: Inspect the wiring for any signs of disconnection or breaks in the circuit.
• Ensure Secure Connections: Make sure all connections are secure and free of corrosion.

3. Test the Solenoid Valve:

• Measure Current: Use a multimeter to measure the current at the signal input of the CR proportional solenoid valve.
• Replace if Faulty: Replace the solenoid valve if it is not drawing sufficient current.

4. Examine Wiring and Connectors:

• Inspect for Damage: Check the wiring and connectors associated with the solenoid valve for damage or disconnection.
• Repair or Replace: Repair or replace any damaged components.

5. Verify Control Unit Functionality:

• Test Control Unit: Ensure that the control unit is correctly processing the solenoid valve signals.
• Update Software: Update the control unit software if necessary.

Note:

Maintaining the solenoid valve and its associated circuitry is crucial for accurate reverse clutch operation. Regular inspections and prompt repairs can help prevent issues related to low current readings.