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C1223 Code – Left Rear Wheel Speed Sensor Input Signal Is Zero

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What are the Possible Causes of the Code C1223?
  • Faulty Hub Assembly (Left Rear Wheel Speed Sensor is part of hub assembly)
    • Faulty Left Rear Wheel Speed Sensor
  • Left Rear Wheel Speed Sensor harness is open or shorted
  • Left Rear Wheel Speed Sensor circuit poor electrical connection

    • Need help with this OBD II code? Our mechanics are available within west Michigan to help. Outside of our service area? Visit our Car Help Section where you can ask questions and get answers.

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