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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Object Detection System >> Diagnostic Information and Procedures >> Parking Assist System Malfunction >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON, verify the park assist system is enabled through the DIC.
    • If the park 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. Command each of the park assist indicator LEDs ON and OFF with a scan tool. Each of the LEDs should turn ON and OFF as commanded.
  5. Ignition ON, vehicle in reverse, verify the scan tool Park Assist System Status parameter is Enable.
    • If not the specified value, refer to Diagnostic Aids under this test procedure and the scan tool Park Assist Disable History parameters to determine the cause of the inhibit.
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