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Home >> Cadillac >> 2009 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Hybrid Engine Controls - DTC P181C To DTC P2797) >> DTC P1AE2-P1AE4, P1B05, or P1B06 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
    IMPORTANT: The HPCM must command the high voltage contactor relays closed in order for HVIC to be enabled. Fail will be displayed if any DTCs present at ignition ON prevent the HPCM from closing the high voltage contactor relays.
  1. Capture and then clear the DTC information.
  2. Ignition OFF, wait 2 minutes.
  3. Ignition ON, observe the HPCMs BECM HVIC Status and HPCM HVIC Status parameters.
    • The parameters should both indicate a PASS condition.
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