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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1107 (Power Steering System) >> Diagnostic Information and Procedures >> DTC C0450 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the VES actuator harness connector.
  2. Measure for 5-10 ohms between the VES actuator terminals A and B.
    • If the resistance is outside the specified range, replace the VES actuator.
  3. Measure for infinite ohms between each VES actuator terminal and the VES actuator housing.
    • If less than the specified range, replace the VES actuator.
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