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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the steering wheel position sensor (SWPS).
  2. Test for less than 1 ohm 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 circuits test normal, replace the EBCM.
  3. Disconnect the harness connector at the EBCM.
  4. Ignition ON, test for 0 volts between the communication circuit terminal 19 and ground at the EBCM connector.
    • If greater than the specified value, repair the communication circuit for a short to voltage.
  5. Test for 0 volts between the communication circuit terminal 18 and ground.
    • If greater than the specified value, repair the communication circuit for a short to voltage.
  6. Ignition OFF, test for infinite resistance between the communication circuit terminal 19 and ground.
    • If greater than the specified value, repair the communication circuit for a short to ground.
  7. Ignition OFF, test for infinite resistance between the communication circuit terminal 18 and ground.
    • If greater than the specified value, repair the communication circuit for a short to ground.
  8. Test for less than 1 ohm between the communication circuit terminals 19 and terminal 4.
    • If greater than the specified range, repair the communication circuit for an open/high resistance.
  9. Test for less than 1 ohm between the communication circuit terminals 18 and terminal 3.
    • If greater than the specified range, repair the communication circuit for an open/high resistance.
  10. Test for infinite resistance between the communication circuit 18 and the communication circuit 19.
    • If not the specified value, test the communication circuits for a short together.
  11. If all circuits test normal, replace the steering angle sensor.
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