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Home >> Cadillac >> 2009 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Automatic Transmission - 2ML70 - DTC P0969 To DTC P2730) >> DTC P2534 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF, disconnect the transmission 24-way inline harness connector, then the transmission 16-way in line harness connector at the transmission, verify that a test lamp does not illuminate between the ignition voltage circuit terminal 12 and ground.
    • If the test lamp illuminates, test the IGN voltage circuit for a short to voltage.
  2. Ignition ON, verify that a test lamp illuminates between the ignition voltage circuit terminal 12 and ground.
    • If the test lamp does not illuminate, test the ignition voltage circuit for a short to ground or an open/high resistance.
    • If the circuit tests normal replace the control solenoid (w/body and TCM) valve assembly.