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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/Vehicle - Off
  2. Disconnect the electrical connector:S48A Multifunction Switch - Instrument Panel
  3. Test for infinite resistance between the test points:
    • Signal terminal 9 & Ground terminal 1 - Switch - Not Pressed
    • Signal terminal 11 & Ground terminal 1 - Switch - Not Pressed
    • If less than infinite resistance 

      Replace the component: S48A Multifunction Switch - Instrument Panel

    • Go to next step: If infinite resistance 
  4. Test for less than 3 ohms between the test points: Signal terminal 11 & Ground terminal 1 - Lock - Pressed
    • If 3 ohms or greater 

      Replace the component: S48A Multifunction Switch - Instrument Panel

    • Go to next step: If less than 3 ohms 
  5. Test for less than 3 ohms between the test points: Signal terminal 9 & Ground terminal 1 - Unlock - Pressed
    • If 3 ohms or greater 

      Replace the component: S48A Multifunction Switch - Instrument Panel

    • Go to next step: If less than 3 ohms 
  6. All OK.
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