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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1655 (Body Control System) >> Diagnostic Information and Procedures >> DTC B1420 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The BCM monitors the battery voltage through the battery positive voltage circuit. Refer to Body Control System Schematics .

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