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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.
  2. Disconnect the harness connector at the B88 seat belt switch.
  3. B88 seat belt switch in the open position.
  4. Test for infinite resistance between the signal circuit terminal 1 and the ground terminal 2 at the B88 seat belt switch.
    • If there is not infinite resistance 

      Replace the B88 seat belt switch.

    • Go to next step: If there is infinite resistance 
  5. B88 seat belt switch in the closed position.
  6. Test for less than 1 Ω between the signal circuit terminal 1 and the ground terminal 2 at the B88 seat belt switch.
    • If 1 Ω or greater 

      Replace the B88 seat belt switch.

    • Go to next step: If less than 1 Ω 
  7. All OK.
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