My A/C clutch is not engaging. The fan does turn on. AC does not work. I tried a quick charge but the clutch still hasn't engaged so I was hoping to start by being able to test out relay 384. (99' passat 1.8 turbo).
I saw the following post (at the bottom) by kenblasko. This may be a stupid question, but is this the easiest way to test the relay? Is there a way to test it with a multimeter with the relay out of the car? If not, can anyone please provide slightly better instructions to a newb to test, or perhaps an easier test? And an even dumber question, will a 12 volt battery work on the test below?
"384 is not a simple relay but a control module (probably solid state relay) that controls the A/C clutch. Pull module 384 and jumper 12 volts to the plug connector corresponding to pin 8 of 384. That puts 12 volts directly to the A/C clutch. Positive should be on connector to pin 2. If the clutch engages, then either control module 384 is bad or possibly the A/C switch on dash, the ambient temperature switch, the A/C pressure switch or blower fan switch all wired in series and connected to pin 9 of 384. If you turn A/C switch on you should get positive on connector to pin 9. Pin 3 is ground. Pin 1 goes to the ECM and pin 4 goes to the instrument panel control module."