GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2003
🢒
TrailBlazer - 2WD
🢒
Body and Accessories
🢒
Entertainment
🢒 Diagnostic Trouble Code (DTC) List
DTC
Description
Module
B1397
DTC B1397
Body Control Module
B2815
DTC B2815
Body Control Module