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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 1809 (Object Detection System - Park Assist System) >> Diagnostic Information and Procedures >> Parking Assist System Malfunction >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, verify the parking assist system is enabled through the DIC.
    • If the parking assist system is manually disabled, enable the system. Refer to the vehicle owners manual for instructions on enabling the system.
  2. Observe the scan tool Park Assist Switch parameter while pressing and releasing the park assist disable switch. The parameter should change between Active and Inactive.
    • If the parameter does not cycle between the specified values, refer to Park Assist Disable Switch Circuit Malfunction below.
  3. Observe the scan tool Park Assist Switch LED parameter while pressing and releasing the park assist disable switch. The parameter should change between On and Off.
    • If the parameter does not cycle between the specified values, refer to Park Assist Disable LED Circuit Malfunction below.
  4. Transmission in REVERSE, verify one audible beep sounds and the scan tool Park Assist System Status parameter is Enable.
    NOTE:

    After completing the next step the vehicle might need to be driven in the forward direction at speed greater than 40 km/h (25 mph).

    • If not the specified values, refer to Diagnostic Aids and the scan tool Park Assist Disable History parameters to determine the cause of the inhibit.
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