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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 910 (Object Detection System) >> Diagnostic Information and Procedures >> Information Center Telltale Malfunction >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the object alarm module.
  2. Ignition ON, with the telltale assembly supply voltage circuit connected to B+, verify that each telltale assembly indicator illuminates when each indicator control circuit terminal(s) B, C and D is connected to ground.
    • If one or two indicators of the telltale assembly does not illuminate, test the control circuit(s) for a short to ground or an open/high resistance. If the circuit(s) test normal, replace the telltale assembly information center.
    • If all the indicators of the telltale assembly does not illuminate, test the supply voltage circuit for a short to ground or an open/high resistance. If the circuit(s) test normal, replace the telltale assembly information center.
  3. If all circuits test normal, test or replace the rear object alarm module.
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