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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 996 (Rear Wheel Steering System) >> Diagnostic Information and Procedures >> DTC C0527: Rear Wheel Steering Control Module >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

If the wiring harness to the steering gear motor is damaged in any way, it MUST be replaced. You can only service the connectors and terminals.

Use a scan tool to monitor the outputs of the hall-affect sensor 12 volt reference circuit. If the voltage of this circuit does not measure between 11.75-12.00 volts, inspect the harness connector of the rear wheel steering control module. Inspect the harness connector for intermittent or poor connections. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

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