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Home >> Cadillac >> 2011 >> Escalade EXT >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 1106 (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 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that DTC B1325 is not set.
  2. Verify that DTC B0958, B0959, B0960 or B0961 is not set.
  3. Ignition ON and with the transmission range in REVERSE, verify that the scan tool Sensor Feed Voltage Output parameter is between 7.2 V - 9.2 V.
    • If less than the specified range, test the supply voltage circuit terminal 4 for a short to ground or an open/high resistance. If the circuit tests normal, replace the rear object alarm module.
    • If greater than the specified range, test the supply voltage circuit terminal 4 for a short to voltage. If the circuits test normal, replace the object alarm module.
  4. If all circuits test normal, replace the suspect object alarm sensor.
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