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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1128 (Keyless Entry System & Remote Functions) >> Diagnostic Information and Procedures >> DTC B3121 >> Action Taken When the DTC Sets

Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

The rear compartment keyless entry antenna is ignored

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