P0537
A/C Evaporator Temperature Sensor Circuit Low
P0537 is an OBD-II diagnostic trouble code meaning: A/C Evaporator Temperature Sensor Circuit Low. Common causes: faulty evaporator temperature sensor, open or short circuit in wiring harness. Estimated repair cost: $22–56.
Symptoms
- Incorrect operation of the air conditioning system
- Increased noise from the air conditioning compressor
- Unstable supply air temperature
- Check Engine light comes on
Causes
- Faulty evaporator temperature sensor
- Open or short circuit in wiring harness
- Poor contact in sensor connectors
- Air conditioning control unit malfunction
How to Fix
- Check the integrity of the sensor wiring harness
- Check the resistance of the evaporator temperature sensor
- Clean sensor connector contacts
- Replace evaporator temperature sensor if necessary
- Reset the error and check the system operation
Related codes
Error P0537 by Vehicle Brand
FAQ
What does the P0537 code mean?
P0537 is an OBD-II diagnostic trouble code that indicates: A/C Evaporator Temperature Sensor Circuit Low
What causes a P0537 error code?
The most common causes of P0537 include: Faulty evaporator temperature sensor; Open or short circuit in wiring harness; Poor contact in sensor connectors; Air conditioning control unit malfunction.
How do I fix a P0537 diagnostic trouble code?
To fix P0537: Check the integrity of the sensor wiring harness. Check the resistance of the evaporator temperature sensor. Clean sensor connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0537?
Limited driving only, diagnose soon
How much does it cost to fix P0537?
The estimated repair cost for P0537 is $22–56. Actual cost depends on your vehicle, location, and labor rates.
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