Mike's Workshop Manuals: Service manuals for every vehicle
Home >> GMC >> 2008 >> Yukon Hybrid, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (Object Detection System) >> Diagnostic Information and Procedures >> DTC B0968 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2009 GMC Yukon XL, 2009 GMC Yukon, 2009 Chevrolet Tahoe, 2009 Chevrolet Suburban, and 2009 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the information center telltale assembly.
  2. Ignition ON, test for 9.0-12.5 V between the supply voltage circuit terminal A and ground.
    • If less than the specified range, test the supply voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the object alarm module.
    • If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the object alarm module.
  3. Command the appropriate LED ON with a scan tool and test for 10.5-12.5 V between the appropriate control circuit listed below and ground:
    • Amber 1 LED - terminal B
    • Amber 2 LED - terminal C
    • Red LED - terminal D
    • If less than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the object alarm module.
    • If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the object alarm module.
  4. If all circuits test normal, test or replace the information center telltale assembly.
scientia non olet · About Mike's Workshop Manuals