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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the yaw rate/lateral accelerometer.
  2. Test for less than 25 ohms between the ground circuit terminal 6 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, test for 11.8-12.2 volts between the 12-volt reference circuit terminal 1 and ground.
    • If less than the specified range, test the 12-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the yaw rate/lateral accelerometer sensor.
  4. Test for 2.2-2.8 volts between the CAN circuit terminal 4 and ground.
    • If greater than the specified range, test the CAN circuit for a short to voltage. If the circuit tests normal, replace the yaw rate/lateral accelerometer sensor.
    • If less than the specified range, test the CAN circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the yaw rate/lateral accelerometer sensor.
  5. Test for 2.2-2.8 volts between the CAN circuit terminal 5 and ground.
    • If greater than the specified range, test the CAN circuit for a short to voltage. If the circuit tests normal, replace the yaw rate/lateral accelerometer sensor.
    • If less than the specified range, test the CAN circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the yaw rate/lateral accelerometer sensor.
  6. Test for infinite ohm between the CAN circuit High, and Low terminals 4 and 5.
    • If less than the specified range, test the CAN circuits for a shorted to each other. If the circuit tests normal, replace the EBCM.
  7. If all circuits test normal, test or replace the EBCM.
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