GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2003
🢒
Jimmy - 4WD
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Body and Accessories
🢒
Data Link Communications
🢒 Diagnostic Trouble Code (DTC) List
DTC
Diagnostic Procedure
Module
B1477
DTC B1477 or B1478
BCM
B1478
DTC B1477 or B1478
BCM