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Home >> Chevrolet >> 2008 >> HHR LS, Standard >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC P0563 >> Circuit/System Verification

Circuit/System Verification

  1. Verify DTC P0563 is set as current.
    • If the DTC is history, or if high voltage DTCs are set in multiple modules, refer to Charging System Test .
  2. Engine running, record the voltage at the battery terminals. Observe the scan tool ECM Ignition 1 Signal parameter. Voltages should not differ by more than 1 volt.
    • If greater than the specified value, replace the ECM.
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