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B2274 Code – ACC Monitor Malfunction

What are the Possible Causes of the Code B2274?
  • Faulty ACC Relay
  • Faulty Certification ECU (Smart Key ECU Assembly)
  • Certification ECU harness is open or shorted
  • Certification ECU 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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