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Home >> Cadillac >> 2007 >> STS Base, 3.6 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 140 (Object Detection System) >> Diagnostic Information and Procedures >> Rear Parking Assist Inoperative - Red Indicator Flashes >> Circuit/System Testing >> Diagnostic Indicator Pattern 6
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Diagnostic Indicator Pattern 6

WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the rear object sensor control module.
  2. Ignition ON, test for 9.5 volts between the chime control circuit terminal 22 and ground.
    • If less than the specified value, test the chime control circuit for a short to ground or an open/high resistance. If all circuits test normal, replace the BCM.
    • If greater than the specified value, refer to Speaker Malfunction .
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