Description:

This diagnostic trouble code, TSC 523974.04, is triggered when the TSC (TLS front-wheel drive axle) detects too low a voltage (less than 0.25 volts) at the signal output of the TLS oil pressure sensor (B167).

Reaction:

When this error occurs, the TLS system may not accurately measure oil pressure, potentially leading to incorrect pressure regulation and operational issues.

Recommendations:

Inspect Oil Pressure Sensor:

• Check Sensor Output:
  • Verify the signal output of the TLS oil pressure sensor B167 to ensure it is within the expected range.
  • Replace the sensor if necessary.

Inspect Sensor Circuit:

• Check for Circuit Issues:
  • Examine the wiring and connections of the oil pressure sensor for any signs of damage, loose connections, or corrosion.
  • Repair or replace any faulty components in the circuit.

Verify Hydraulic System:

• Check Hydraulic Pressure:
  • Ensure the hydraulic system is functioning correctly and providing accurate pressure readings.
  • Repair any issues in the hydraulic system that may affect pressure readings.

Note:

Maintaining the correct voltage range for the oil pressure sensor is essential for accurate TLS operation. Regular inspections and maintenance of the sensor and its circuit are crucial to prevent operational issues.