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Circuit/System Testing

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

SGCM 36 volt Output Terminal Circuit Low

  1. If DTC is history, refer to Testing for Intermittent Conditions and Poor Connections .
  2. Ignition ON, test for greater than 22 volts at the SGCM battery positive 36 volt output voltage stud.
    • If less than the specified value, test the 36 volt cable for an open/high resistance or short to ground.

Hybrid Battery Pack Voltage Low

  1. If DTC is history, refer to Testing for Intermittent Conditions and Poor Connections .
  2. Gain access to the hybrid battery pack. Refer to Hybrid Battery Service Disconnect/Connect .
  3. Ignition OFF, test battery pack voltage for greater than 22 volts.
    • If less than the specified value, replace the battery pack.
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