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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 739 (Power Steering System) >> Diagnostic Information and Procedures >> Diagnostic Starting Point - Power Steering System >> System Diagnosis

System Diagnosis

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

After incorrect system operation has been verified, and that aftermarket devices or intermittent conditions are not the cause, begin the system diagnosis with the Diagnostic System Check - Vehicle. The Diagnostic System Check - Vehicle will provide the following information:

  1. The identification of the control modules that control the Power Steering System.
  2. The ability of those control modules to communicate via the serial data circuit.
  3. The presence of any stored DTCs in those control modules and there status.

The use of the Diagnostic System Check - Vehicle will identify the correct procedure for diagnosing the malfunction and where the procedure is located. Refer to Diagnostic System Check - Vehicle .

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