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 U0111 Lost Communication With Energy Storage Control Module (ESCM)
- DTC U0120 Lost Communication With Starter/Generator Control Module (SGCM)
- DTC U0131 Lost Communication With Electro-Hydraulic Power Steering (EHPS) Module
- DTC U0293 Lost Communication With Hybrid Control Module (HCM)