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P0539: A/C Evaporator Temperature Sensor Circuit Intermittent

What Does P0539 Mean?

P0539 is a diagnostic trouble code indicating: A/C Evaporator Temperature Sensor Circuit Intermittent. This code relates to the vehicle speed and idle control system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

What To Do Next

  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

P0534 A/C Refrigerant Charge Loss P0535 A/C Evaporator Temperature Sensor Circuit P0536 A/C Evaporator Temperature Sensor Circuit Range/Performance P0537 A/C Evaporator Temperature Sensor Circuit Low P0538 A/C Evaporator Temperature Sensor Circuit High P0540 Intake Air Heater A Circuit P0541 Intake Air Heater A Circuit Low P0542 Intake Air Heater A Circuit High