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Test TC-1: Sensor Output Inspection

  1. Connect scan tool. While test driving vehicle, monitor wheel speed on scan tool. If displayed value is correct, go to step  6 . If displayed value is not correct, go to next step.
  2. Check wheel speed sensor harness connections. Repair as necessary. After repairs, go to step  6 . If connections are okay, replace wheel speed sensor in question, and then go to next step.
  3. While test driving vehicle, monitor wheel speed on scan tool. If displayed value is correct, go to step  6 . If displayed value is not correct, go to next step.
  4. Check sensor rotors. Replace if necessary. After repairs, go to step  6 . If sensor rotors are okay, go to next step.
  5. While test driving vehicle, monitor wheel speed on scan tool. If displayed value is correct, go to next step. If displayed value is not correct, repair harness or connector between EHCU and wheel speed sensor in question. After repairs, go to next step.
  6. Reconnect all components. Ensure all components are properly installed. Verify system operation.
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