Originally Posted by Busha
Where is that relay located exactly ? And also where is this IHKA part ? Is there german name or serial number for that because Im from Croatia and probably would buy it in Germany. I think that the mechanic told me that those wires which go on compressor to turn it ON have no electricity, that is why it wirks when connected on + on the battery.
Thanks a lot
1) Component and Signal Information
4) K19 Relay A/C Compressor
Now the trick is finding where that relay is.
I'll see if I can find it myself, but this is where you would probably want to look.
The + signal just magnetizes the fan clutch to "engage it" so that the drive belt spins it under load. When it doesn't have a signal, it (in a perfect world) has no load on the drive belts.
If it didn't engage when you hit with power, I would have said the clutch is bad because it doesn't engage (which in my experience means your replacing the compressor).