LockDown2259

Hello i have a problem with my a/c system

when i put power directly to the a/c it blows cold air. But when i try to activate it from inside the car nothing happens.

I have replaced the relay behind the dashboard and also the clima control panel still no sucess. I had a fault code on the high pressure sensor and changed that also with a used one. But maybe the used one dont work? And system is full og gass. Someone that can help me?

georgeb944

Use VCDS to test the AC clutch, relay and control head via the output tests.

Prospeeder

Is the ECON light stuck on? Is there any faults being logged? If you go to the measure blocks, and find one thats compressor status and it will say if its being commanded on or not. If you find another, like A/c readiness or something, it will give a number designation regarding a fault reason the compressor is not being commanded on. using vagcom, if you hover over it with the mouse, it should tell you what each code means. 0 means the compressor is on, another means pressure is to high, or low, or ambient temp is too low, or engine temp is too high, or RPM signal missing. Ect.