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Home >> GMC >> 2007 >> Acadia SLE, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Object Detection System >> Diagnostic Information and Procedures >> Information Center Telltale Malfunction >> Circuit/System Testing

Circuit/System Testing

  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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