For 1990-2009 cars only
Service All Wheel Drive Mesage DTC C0399 - keywords 4477 AWD module wire
| Subject: | Service All Wheel Drive Message DTC C0399 |
| Models: | 2008 Cadillac CTS |
| Equipped With AWD |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Customer may comment of a service all wheel drive message on in the DIC. Technicians may find a current or history DTC C0399 in the transfer case control module (TCCM).
Recommendation/Instructions:
If SI diagnostics does not lead to a resolution inspect the wiring harness at the right rear cylinder head for chaffing. Also inspect the wiring harness at the stand off bracket near the rear of the left cylinder head.
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.
