U0605
Lost communication With A/C Refrigerant Sensor A
U0605 is an OBD-II diagnostic trouble code meaning: Lost communication With A/C Refrigerant Sensor A. Common causes: open or short circuit in the sensor circuit, refrigerant sensor malfunction. Estimated repair cost: $17–56.
Symptoms
- The air conditioner does not work or does not work correctly
- Check Engine Light Is On
- No cold air from vents
- The climate control system goes into emergency mode
Causes
- Open or short circuit in the sensor circuit
- Refrigerant sensor malfunction
- Connector problems or contact corrosion
- Air conditioning control module malfunction
- ECU software error
How to Fix
- Check the integrity of the wiring to the refrigerant sensor
- Check connectors and contacts for oxidation
- Test the refrigerant sensor with a multimeter
- Reset the error and check for its reappearance
- If necessary, replace the refrigerant sensor
Related codes
Error U0605 by Vehicle Brand
FAQ
What does the U0605 code mean?
U0605 is an OBD-II diagnostic trouble code that indicates: Lost communication With A/C Refrigerant Sensor A
What causes a U0605 error code?
The most common causes of U0605 include: Open or short circuit in the sensor circuit; Refrigerant sensor malfunction; Connector problems or contact corrosion; Air conditioning control module malfunction.
How do I fix a U0605 diagnostic trouble code?
To fix U0605: Check the integrity of the wiring to the refrigerant sensor. Check connectors and contacts for oxidation. Test the refrigerant sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0605?
Yes, but get it checked soon
How much does it cost to fix U0605?
The estimated repair cost for U0605 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat