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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1742 (Power Steering System) >> Diagnostic Information and Procedures >> DTC C0000 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The Power Steering Control Module (PSCM) receives a vehicle speed message from the Transmission Control Module (TCM) w/auto trans, or Engine Control Module (ECM), w/manual trans, via a class 2 serial data circuit. The PSCM uses this vehicle speed message, and other inputs, to determine the desired amount of steering assist.

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