LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2007 >> Escalade AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> Lift Gate/Lift Gate Window Ajar Indicator Malfunction >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect both the liftgate and liftglass ajar switches.
  2. Ignition OFF, test for less than 1 ohm of resistance between the low reference circuit and ground.
    • If greater than 1 ohm, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Liftgate Ajar Switch parameter is Inactive.
    • If not Inactive, test the signal circuit for a short to ground. If the circuit tests normal, replace the BCM.
  4. Ignition ON, check to see that the rear access open message is not displayed.
    • If the message is displayed in the DIC, replace the IPC.
  5. Ignition ON, install a 3-amp fused jumper wire between the signal circuit and ground. Verify the scan tool Liftgate Ajar Switch parameter is Active.
    • If not Active, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal replace the BCM.
  6. Ignition ON, check to see that the rear access open message is displayed.
    • If the message is not displayed in the DIC, replace the IPC.
  7. If all circuits test normal, test or replace the liftgate ajar switch or the liftglass ajar switch.
scientia non olet · About LEMON Manuals