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Home >> Buick >> 2016 >> Envision >> Repair and Diagnosis >> External Pages >> Different car >> Section 199 (Object Detection System) >> Diagnostic Information and Procedures >> Parking Assist System Malfunction >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2016 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.

Park Assist Switch

Static Test

  1. Ignition OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel.
  2. Test for infinite resistance between the signal terminal 5 and the ground terminal 2.
    • If not infinite resistance 

      Replace the S48D Multifunction Switch 2 - Instrument Panel.

    • If infinite resistance 
  3. Test for less than 10 Ω between the signal terminal 5 and the ground terminal 2 while pressing the park assist switch.
    • If not less than 10 Ω 

      Replace the S48D Multifunction Switch 2 - Instrument Panel.

    • If less than 10 Ω 
  4. All OK
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