Programming and Relearning

Programmable Parameters
The instrument cluster will display TBC FAULT if it is receiving communications from the trailer brake control (TBC) module but has not been configured for a trailer brake system. If the instrument cluster displays TBC FAULT and there are no DTCs stored in the TBC module, follow these steps to verify and/or modify the TBC module programmable parameter in the instrument cluster.
1. Identify the vehicle using the normal IDS process.
2. Select Programming and press the check box.
3. Select Module Programming and press the check box.
4. Select Programmable Parameters and press the check box.
5. Select Personality and press the check box.
6. Follow the on-screen directions.

7. NOTE: The scan tool will display either EQUIPPED or NOT EQUIPPED to the left of TBC-IC.

Highlight TBC-IC.
8. If the instrument cluster needs to be configured for a trailer brake system, choose EQUIPPED and press the check box.