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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1363 (Hybrid Controls - DTC B008A To DTC P0AF7) >> DTC P0A8E >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the Ignition to ON.
  2. Connect a DMM to the 14 volt battery.
  3. Use the APM Low Voltage Control to turn on the APM 14 volt system. Vary the voltage setpoint with the scan tool ensuring that the DMM tracks the commanded voltage.
    • If the Low Voltage Control fails, replace the APM.
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