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Diagnostic Code Index

WARNING: This page is about a different car, the 2008 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX

DTC Description
DTC B1023  B1023 00: Integral Switch Performance
DTC B3130  B3130 00: All Door Unlock Circuit
DTC B3135  B3135 00: All Door Lock Circuit