Adding Integrated Trailer brake Controller RPO JL1 - keywords connector electric hydraulic itbc tow towing wire wiring
| Subject: | Adding Integrated Trailer Brake Controller RPO JL1 |
| Models: | 2007-2008 Chevrolet Silverado |
| 2007-2008 GMC Sierra |
This PI was superseded to update model years. Please discard PIT4332A.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some customers may request that dealers install the factory Integrated Trailer Brake Controller on their 2007 or 2008 Full Size pickup when the vehicle was ordered without RPO JL1.
Recommendation/Instructions:
This is to advise you that if the vehicle does not have RPO JL1, it can not be retro-fitted with a factory trailer brake controller.
Bulletin 06-08-45-008 or later advises how to install an aftermarket trailer brake controller on vehicles NOT equipped with RPO JL1.
Bulletin 07-08-45-001 or later advises how to install an aftermarket trailer brake controller under certain conditions if the vehicle IS equipped with RPO JL1.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
