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C1166 Code – Suction Valve 1

What are the Possible Causes of the Code C1166?
  • Faulty Anti-Lock Brake System (ABS) Actuator and Electric Unit (Control Unit)
  • ABS Actuator and Electric Unit harness is open or shorted
  • ABS Actuator and Electric Unit 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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