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Home >> GMC >> 2007 >> Acadia SLT, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> Liftgate/Liftgate Window Ajar Indicator Malfunction Manual Liftgate >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the liftgate latch assembly.
  2. Test for less than 1 ohm of resistance between the ground circuit terminal 5 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Rear Closure Ajar parameter is Inactive.
    • If not the specified value, test the signal circuit terminal 6 for a short to ground. If the circuit tests normal, replace the BCM.
  4. Install a 3A fused jumper wire between the signal circuit terminal 6 and ground. Verify the scan tool Rear Closure Ajar parameter is Active.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal replace the BCM.
  5. If all circuits test normal, test or replace the liftgate latch assembly.
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