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Home >> Chevrolet >> 2008 >> Impala Police >> Repair and Diagnosis >> Brakes >> Anti-Lock Brake System And Traction Control System >> Diagnostic Information and Procedures >> DTC C0710 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the steering angle sensor.
  2. Test for less than 1 ohm of resistance between the low reference circuit terminal 1 and ground.
    • If greater than the specified range, test for an open/high resistance in the ground circuit. If the circuit tests normal, replace the EBCM.
  3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 2 and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM.
  4. Ignition OFF, disconnect the harness connector at the EBCM.
  5. Ignition ON, test for 0 volts between the EBCM Bus- communication terminal 33 and ground.
    • If greater than the specified value, test the communication circuit for a short to voltage.
  6. Test for 0 volts between the EBCM Bus- communication circuit terminal 21 and ground.
    • If greater than the specified value, test the communication circuit for a short to voltage.
  7. Ignition OFF, test for infinite resistance between the EBCM Bus- communication circuit terminal 33 and ground.
    • If not the specified value, test the communication circuit for a short to ground.
  8. Test for infinite resistance between the EBCM Bus- communication circuit terminal 21 and ground.
    • If not the specified value, test the communication circuit for a short to ground.
  9. Test for less than 1 ohm of resistance between the EBCM communication circuit terminal 33 and Yaw Lateral Accelerometer Sensor terminal 2.
    • If greater than the specified range, test the communication circuits for an open/high resistance.
  10. Test for less than 1 ohm of resistance between the EBCM communication circuit terminal 21and Yaw Lateral Accelerometer terminal 3.
    • If greater than the specified range, test the communication circuits for an open/high resistance.
  11. Test for infinite resistance between the EBCM communication circuit terminal 21and terminal 33.
    • If not the specified value, test the communication circuits for a short together.
  12. If all circuits test normal, replace the steering wheel position sensor.

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