DTC Descriptors
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
This diagnostic procedure supports the following DTCs:
- DTC U0100 Lost Communication With Engine Control Module (ECM)
- DTC U0101 Lost Communication With Transmission Control Module (TCM)
- DTC U0105 Lost Communication With Fuel Injector Control Module (FICM)
- DTC U0106 Lost Communication With Glow Plug Control Module