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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC C0460 or C0710: Steering Position Signal >> Circuit/System Testing

Circuit/System Testing

  1. Ignition ON.
  2. Verify that DTC U0073, U0074, U0125 or U0126 is not set.
    • If DTC U0073, U0074, U0125 or U0126 is not set 
  3. Verify that DTC C071042 or C07105A is not set.
    • If DTC C0710 42 or C0710 5A is not set 
  4. Verify the B99 Steering Wheel Angle Sensor is installed correctly.
    • If loose or incorrect installation 

      Correct the installation or replace the component.

    • If correct installation 
  5. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the B99 Steering Wheel Angle Sensor. It may take up to 2minutes for all vehicle systems to power down.
  6. Test for less than 5Ω between the ground circuit Terminal 6 and ground.
    • If 5Ω or greater 
    1. Ignition OFF.
    2. Test for less than 2Ω in the ground circuit end to end.
      • If 2Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2Ω, repair the open/high resistance in the ground connection.
    • If less than 5Ω 
  7. Ignition ON.
  8. Verify a test lamp illuminates between the 12V reference circuit Terminal 5 and ground.
    • If the test lamp does not illuminate 
    1. Ignition OFF, disconnect the harness connector at the K17 Electronic Brake Control Module.
    2. Test for infinite resistance between 12V reference circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance
    3. Test for less than 2Ω in the 12V reference circuit end to end.
      • If 2Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2Ω, replace the K17 Electronic Brake Control Module.
    • If the test lamp illuminates 
  9. Replace the B99 Steering Wheel Angle Sensor.
  10. Ignition ON.
  11. Verify that DTC C0710 is not set.
    • If DTC C0710 is set 

      Replace the K17 Electronic Brake Control Module.

    • If DTC C0710 is not set 
  12. Verify that DTC C0460 71 is not set.
    • If DTC C0460 71 is set 

      Replace the K19 Suspension Control Module.

    • If DTC C0460 71 is not set 
  13. All OK.
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