Description:

This error code is triggered when the transmission oil temperature cannot be determined and communicated on the CAN bus by the PTA or CCU control software. A transmitted replacement value generates this diagnostic trouble code. This fault also generates a diagnostic trouble code in the PTA and/or CCU control software, which takes priority.

Reaction:

When this code is detected, the control software may exhibit limited or no functionality.

Recommendations:

• Inspect Temperature Sensor:
  • Check the transmission oil temperature sensor for proper operation.
  • Replace the sensor if it is found to be faulty.
• Examine Wiring and Connections:
  • Inspect the wiring and connections between the sensor and the control unit for damage or loose connections.
  • Repair or replace any defective components.
• Check Software Updates:
  • Ensure that the PTA and CCU control software are up to date and compatible.
  • Update the software if necessary.
• Analyze CAN Bus Traffic:
  • Use diagnostic tools to verify that the temperature data is correctly transmitted over the CAN bus.

Note:

Proper functioning of the transmission oil temperature sensor is crucial for monitoring and maintaining optimal transmission performance. Regular maintenance and timely replacement of faulty components can prevent such issues.