Description:

This diagnostic trouble code, TSC 523949.05, is triggered when the control unit measures too low a current at the signal input of the solenoid valve for raising TLS (Total Lubrication System) (Y67). This indicates that the circuit is either shorted to a supply lead or is open.

Reaction:

When this error occurs, the solenoid valve for raising the TLS may not operate correctly, potentially leading to impaired functionality of the TLS system.

Recommendations:

Inspect Solenoid Valve Circuit:

• Check for Open Circuits or Shorts:
  • Examine the wiring for any signs of open circuits or shorts to a supply lead.
  • Repair any identified issues in the circuit.

Inspect Solenoid Valve:

• Check Solenoid Valve Connections:
  • Ensure that the solenoid valve Y67 is properly connected and not damaged.
  • Replace the solenoid valve if it is faulty.

Verify Control Unit:

• Check for Control Unit Issues:
  • Inspect the control unit for any faults that could affect the current measurement.
  • Repair or replace the control unit if necessary.

Note:

Ensuring proper current flow to the solenoid valve for raising the TLS is crucial for its proper operation. Regular inspections and maintenance of the solenoid valve circuit and connections are recommended.