C1610 Code – AWC Actuator Power Supply Electronic Relay Malfunction

What are the Possible Causes of the Code B2774?
  • Faulty Positive Temperature Coefficient (PTC) Heater
  • PTC Heater harness is open or shorted
  • PTC Heater 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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