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Diagnostic Trouble Code (DTC) List

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.
Diagnostic Trouble Code (DTC) List

DTC Diagnostic Procedure Module(s)
B2455 DTC B2455  OnStar® VCIM
B2470 DTC B2470  OnStar® VCIM
B2476 DTC B2476  OnStar® VCIM
B2482 DTC B2482  OnStar® VCIM
B2483 or B2484 DTC B2483 or B2484  OnStar® VCIM
U1500 DTC U1500  OnStar® VCIM
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