03-04 Full Size Truck and Utility No Communication with Any Modules, Multiple U-DTCs, or IPC Warning Indicators - kw ABS DIC intermittent light lamp driver seat wire repair brake indicator cut fuse

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Owners may comment on varies IPC warning indicator coming on, DIC may display unknown driver, memory seat may not recall, and in some cases No Start. This concern maybe caused by a chaffed/pinched wiring harness under left front seat. The concern could be very intermittent and you may be able to duplicate the concern by moving the drivers seat to various positions. In some cases the pinch can only be seen by removing the conduit covering to examine the wires.

Repair and reroute wire harness as necessary.

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Please follow this diagnosis 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. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.

(03-04 Chevrolet All Full Size Trucks and Utilities) and (03-04 GMC All Full Size Trucks and Utilities) and (03-04 Cadillac All Full Size Utilities)

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