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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 2003 (Hybrid Controls - 3.6L (Hp5) - DTC P0AF7 To DTC P16F6) >> DTC P0AFF >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Use APM Output Device Control to verify APM operation.
  2. Turn the Ignition to ON.
  3. Connect a DMM to the 12V battery.
  4. Use the Device Control "APM set point control" to turn on the APM 14V system.
  5. Vary the voltage setpoint with the scan tool ensuring that the DMM tracks the commanded voltage.
    • If the APM set point control fails, replace the APM.
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