I have a 2001 VW Jetta GLS 2.0L with no AC. It has a charge in the system and the AC control requests it to activate but nothing happens any thoughts? I am from Brantford ON area. This is a great forum.
disconnect ac compressor connector, then check resistance of the clutch coil (compressor side connector) it should be within 3-4 ohm range. Then measure voltage going to ac compressor with ac on, fan set to 1 or higher when engine is running and ac compressor switch is pushed. BE CAREFUL! BOTH FANS WILL RUN AT LOW SPEED, SO WATCH YOUR HANDS
very common problem, I changed one already and the new one failed within 20 days, then I made my own from 7 relays. No more problems at all.
you say that you are getting 9+V with key in or out then try disconnecting connector at the compressor see if the compressor clutch separates this time, then connect the connector again and see if clutch moves in.
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