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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1143 (Seat Heating System & Seat Cooling System) >> Diagnostic Information and Procedures >> DTC B2345 >> Circuit/System Testing >> B2345 42 or B2345 4B

B2345 42 or B2345 4B

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.

If either DTC is set current or history, the only option is module replacement.

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