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Home >> Chevrolet >> 2007 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 635 (Variable Effort Steering System) >> Diagnostic Information and Procedures >> DTC C0450 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2007 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.

With the engine ON, while turning the steering wheel, use a scan tool to command VES actuator ON. The steering wheel should take more effort to turn. Command the VES actuator OFF. The steering wheel should take less effort to turn.

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