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U1736 Code – Lack of Acknowledgment For Telltales

What are the Possible Causes of the Code U0684?
  • Faulty Catalyst Temperature Bank 1 Sensor 1
  • Catalyst Temperature Bank 1 Sensor 1 harness is open or shorted
  • Catalyst Temperature Bank 1 Sensor 1 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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