U0626

Lost Communication With A/C Refrigerant Pressure Sensor A

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

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

U0625 U0627 U0121