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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 561 (Body Control System) >> Diagnostic Information and Procedures >> DTC B1397 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

The body control module (BCM) provides an internal 12-volt reference for the steering wheel controls supply voltage circuit.