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Home >> Cadillac >> 2009 >> XLR Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC C0710 >> Circuit/System Testing

Circuit/System Testing

  1. Verify that DTC U2100, or U2142 are not set.
  2. 2. Verify the Yaw rate sensor and steering angle sensor mounting position is correct.
  3. Ignition OFF, disconnect the harness connector at the steering angle sensor.
  4. Ignition OFF for 60 seconds, test for less than 5 ohms between the low reference circuit terminal 6 and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance.
  5. Ignition ON, test for ignition voltage between the ignition voltage circuit terminal 5 and ground.
    • If not within the specified range, test the ignition voltage circuit for a short to ground or open/high resistance.
  6. Ignition OFF, disconnect the harness connector at the EBCM.
  7. Ignition ON, test for less than 1 volt between the following terminal listed below and ground.
    • CAN Bus High serial data circuit terminal 37
    • CAN Bus Low serial data circuit terminal 24
    • If greater than the specified value, test the appropriate serial data circuit for a short to voltage.
  8. Ignition OFF, test for infinite resistance between the following terminal listed below and ground.
    • CAN Bus High serial data circuit terminal 37
    • CAN Bus Low serial data circuit terminal 24
    • If not the specified value, test the appropriate serial data circuit for a short to ground.
  9. Test for less than 2 ohms between the appropriate serial data circuit terminals listed below.
    • CAN Bus High serial data circuit terminal 37 at the EBCM harness connector and terminal 3 at the steering angle sensor harness connector.
    • CAN Bus Low serial data circuit terminal 24 at the EBCM harness connector and terminal 1 at the steering angle sensor harness connector.
    • If greater than the specified range, test the appropriate serial data circuit for an open/high resistance.
  10. Test for infinite resistance between the CAN Bus High serial data circuit terminal 37 and the CAN Bus Low serial data circuit terminal 24.
    • If not the specified value, repair the serial data circuits for a short together.
  11. If all circuits test normal, test or replace the steering angle sensor. If DTC resets, replace the EBCM
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