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Home >> Chevrolet >> 2012 >> Suburban C2500 >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System - Non-Hybrid Greater Than/Equal To 3900 Kg (8600 Lb) GVW >> Diagnostic Information and Procedures >> DTC B2745 >> Component Testing

Component Testing

  1. Ignition OFF, disconnect the harness connector at the traction control switch or accessory switch.
  2. Test for infinite resistance between the signal terminal 1 and the ground terminal 3 with the switch in the open position.
    • If not the specified value, replace the traction control switch or accessory switch.
  3. Test for less than 5 Ω between the signal terminal 1 and the ground terminal 3 with the switch in the closed position.
    • If greater than the specified range, replace the traction control switch or accessory switch.
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