DTS Professional Vehicle Service Information - keywords accessories brake body coach connector driveline DTC electrical engine funeral HVAC limo restraints steering suspension
| Subject: | DTS Professional Vehicle Service Information |
| Models: | 2006- 2007 Cadillac DTS Professional Vehicles |
This PI was superseded to update Recommendation/Instructions. Please discard PIC4163.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Confusion experienced when servicing Cadillac DTS Professional vehicles.
Recommendation/Instructions:
General Motors supports the servicing and repair of Cadillac DTS Professional Vehicles. The three professional vehicle models can be identified by RPO B9Q Funeral Coach Package, V4U Coachbuilder Limousine Package, and W20 DTS Livery Package. All required service information can be found in SI by selecting Cadillac DTS. When a professional vehicle is ordered it comes equipped with dedicated inline connectors that upfitters connect to. Cutting and splicing into the wire harness voids the warranty. Concerns that are suspected to be caused by upfitter installed electrical components can be isolated by disconnecting the appropriate inline connectors. See the list below. Detailed information regarding these harnesses can be found in the Wiring Systems subsection. If the concern is NOT resolved with the connector disconnected, follow normal diagnostic procedures. If the concern IS resolved by disconnecting one of these connectors, contact the Cadillac Professional Vehicle Group Program Headquarters at 1-800-528-5515.
C209 Body Harness to the Cargo Door Harness (B9Q)
C322 Body Harness to the Courtesy Lamp Harness (V4U)
C323 Left Middle Window Harness to the Body Harness (V4U)
C324 Left Middle Window Harness to the Left Middle Trim Harness (V4U)
C333 Right Middle Window Harness to the Body Harness (V4U)
C334 Right Middle Window Harness to the Right Middle Trim Harness (V4U)
C335 Body Harness to the Left Middle Trim Harness (V4U)
C336 Body Harness to the Right Middle Trim Harness (V4U)
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.
