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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the B99 Steering Wheel Angle Sensor.
  2. Test for less than 10 Ω between the low reference circuit terminal 6 and ground.
    • If greater than specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K17 Electronic Brake Control Module.
  3. Ignition ON, test for B+ between the 12 V reference terminal 1 and ground.
    • If less than the specified range, test the 12 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K17 Electronic Brake Control Module.
  4. Disconnect the harness connector at the K17 Electronic Brake Control Module.
  5. Ignition ON, test for less than 1 V between the signal circuit terminal 19 and ground.
    • If greater than the specified value, test the signal circuit for a short to voltage.
  6. Test for less than 1 V between the signal circuit terminal 18 and ground.
    • If greater than the specified value, test the signal circuit for a short to voltage.
  7. Ignition OFF, test for infinite resistance between the signal circuit terminal 19 and ground.
    • If not the specified value, test the signal circuit for a short to ground.
  8. Test for infinite resistance between the signal circuit terminal 18 and ground.
    • If not the specified value, test the signal circuit for a short to ground.
  9. Test for less than 2 Ω between the signal circuit terminal 19 at the K17 electronic brake control module harness connector and the signal circuit terminal 4 at the B99 Steering Wheel Angle Sensor.
    • If greater than the specified range, test the signal circuit for an open/high resistance.
  10. Test for less than 2 Ω between the signal circuit terminal 18 at the K17 Electronic Brake Control Module harness connector and the signal circuit terminal 3 at the B99 Steering Wheel Angle Sensor.
    • If greater than the specified range, test the signal circuit for an open/high resistance.
  11. If all circuits test normal, replace the B99 Steering Wheel Angle Sensor.
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