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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 595 (Rear Wheel Steering System) >> Diagnostic Information & Procedures >> Service 4W Steer Indicator Inoperative >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The instrument panel cluster (IPC) illuminates the Service 4-Wheel Steer indicator. The rear wheel steering control module sends a Class 2 serial data message to the IPC in order to comm and the indicator ON or OFF.

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