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Component Testing

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the S48C Multifunction Switch 1 - Instrument Panel.
  2. Test for infinite resistance between the signal terminal 4 and the ground terminal 2 with the switch in the open position.
    • If less than infinite resistance 

      Replace the S48C Multifunction Switch 1 - Instrument Panel.

    • Go to next step: If infinite resistance 
  3. Test for less than 2 Ω between the signal terminal 4 and the ground terminal 2 with the switch in the closed position.
    • If 2 Ω or greater 

      Replace the S48C Multifunction Switch 1 - Instrument Panel.

    • Go to next step: If less than 2 Ω 
  4. All OK.
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