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Home >> Chevrolet >> 2006 >> HHR LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 929 (Data Communications System) >> Diagnostic Information and Procedures >> DTC B1004 >> Circuit/System Description
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Circuit/System Description

WARNING: This page is about a different car, the 2011 Chevrolet HHR. However, it is still accessible from the selected car via links, so may be relevant.

The internal fault detection is handled inside the control module.