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Home >> Buick >> 2020 >> Envision Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 173 (Antilock Brake System) >> Diagnostic Information and Procedures >> Traction Control/Stability Control Indicator Malfunction >> Component Testing
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Component Testing

WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the S75 Traction Control Switch.
  2. Test for infinite resistance between the signal terminal 1 and the ground terminal 3 with the switch in the open position.
    • If less than infinite resistance 

      Replace the S75 Traction Control Switch.

    • Go to next step: If infinite resistance 
  3. Test for less than 2 Ω between the signal circuit terminal 1 and the ground terminal 3 with the switch in the closed position.
    • If 2 Ω or greater 

      Replace the S75 Traction Control Switch.

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