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Circuit/System Testing

WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the K17 Electronic Brake Control Module, ignition ON.
  2. Test for less than 1 V between the K17 Electronic Brake Control Module harness connector terminals listed below and ground:
    • B5LF Left Front Wheel Speed Sensor - terminal 7
    • B5RF Right Front Wheel Speed Sensor - terminal 26
    • B5LR Left Rear Wheel Speed Sensor - terminal 23
    • B5RR Right Rear Wheel Speed Sensor - terminal 37
    • If 1 V or greater 

      Repair the short to voltage on the circuit.

    • Go to next step: If less than 1 V 
  3. All OK.
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