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Home >> GMC >> 2007 >> Yukon Base, 4.8 C >> Repair and Diagnosis >> External Pages >> Different car >> Section 955 (Object Detection System) >> Diagnostic Information and Procedures >> DTC B1E3A >> Circuit/System Testing
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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 ON and the scan tool installed, verify that DTC B1325 is not current.
  2. Ignition ON and the scan tool installed, verify that DTC B0958, B0959, B0960 or B0961 is not current.
  3. Ignition ON and with the transmission range in REVERSE, verify that the scan tool Sensor Feed Voltage Output parameter is between 7.2-9.2 V.
    • If less than 7.2 V, test the supply voltage circuit of the object alarm sensor for a short to ground or an open/high resistance. If the circuit tests normal, replace the object alarm module.
    • If greater than 9.2 V, test the supply voltage circuit of the object alarm sensor for a short to voltage. If the circuits test normal, replace the object alarm module.
  4. If all circuits test normal, test or replace the suspect object alarm sensor.
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