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Home >> Chevrolet >> 2009 >> HHR LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Power Steering System) >> Diagnostic Information and Procedures >> DTC C0845 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X2 harness connector at the PSCM.
  2. Verify that a test lamp does not illuminate between the ignition circuit terminal 6 and ground.
    • If the test lamp illuminates, test the ignition circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  3. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 6 and ground.
    • If the test lamp does not illuminate, test the ignition circuit for a short to ground or and open/high resistance. If the circuit tests normal, replace the BCM.
  4. If all circuits test normal, replace the steering column.
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