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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC B2745: Traction Control Switch Circuit Short to Ground >> Component Testing

Component Testing

  1. Ignition OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel.
  2. Test for infinite resistance between the signal circuit Terminal 11 and the ground circuit Terminal 15 with the switch in the open position.
    • If less than infinite resistance 

      Replace the S48D Multifunction Switch 2 - Instrument Panel.

    • If infinite resistance 
  3. Test for less than 2Ω between the signal circuit Terminal 11 and the ground circuit Terminal 15 with the switch in the pressed or closed position.
    • If 2Ω or greater 

      Replace the S48D Multifunction Switch 2 - Instrument Panel.

    • If less than 2Ω 
  4. All OK.
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