U0626
Lost Communication With A/C Refrigerant Pressure Sensor A
U0626 is an OBD-II diagnostic trouble code meaning: Lost Communication With A/C Refrigerant Pressure Sensor A. Common causes: open or short circuit in the sensor circuit, refrigerant pressure sensor malfunction. Estimated repair cost: $17–89.
Symptoms
- Air conditioner doesn't work
- Check Engine Light Is On
- Cooling fan runs constantly
- Inability to activate air recirculation mode
Causes
- Open or short circuit in the sensor circuit
- Refrigerant pressure sensor malfunction
- Poor contact in the sensor connector
- Problems with the air conditioning ECU
- Wiring harness damage
How to Fix
- Check the integrity of the sensor circuit
- Inspect connectors and contacts for corrosion
- Check the functionality of the pressure sensor
- Scan the system for additional errors
- If necessary, replace the refrigerant pressure sensor
Related codes
Error U0626 by Vehicle Brand
FAQ
What does the U0626 code mean?
U0626 is an OBD-II diagnostic trouble code that indicates: Lost Communication With A/C Refrigerant Pressure Sensor A
What causes a U0626 error code?
The most common causes of U0626 include: Open or short circuit in the sensor circuit; Refrigerant pressure sensor malfunction; Poor contact in the sensor connector; Problems with the air conditioning ECU.
How do I fix a U0626 diagnostic trouble code?
To fix U0626: Check the integrity of the sensor circuit. Inspect connectors and contacts for corrosion. Check the functionality of the pressure sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0626?
Yes, but get it checked soon
How much does it cost to fix U0626?
The estimated repair cost for U0626 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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