From: kludge@panix.com   
      
   Sail Fisherman   wrote:   
   >The air conditioning is blowing just air.   
   >Not hot but not cold.   
   >   
   >I don't think the AC compressor is engaging.   
   >But I don't know how to tell for sure.   
   >   
   >The belt is spinning the AC compressor but I don't know how to tell if the   
   >compressor clutch is actually engaged (the "knobs" are not spinning).   
   >   
   >There is a plug with two wires which is mounted on the compressor.   
   >   
   >Can I jump 12V to one of those two wires to see if the clutch engages?   
   >Will it hurt the ECU?   
      
   You could probably do that, but it would be easier to just attach a meter   
   and see if there is 12V on the thing to engage the clutch.   
      
   When the clutch engages, the effect is very clear when the hood is up.   
   The ka-chunk and then the change in running sound is very distinctive.   
      
   Note that if the system pressures are not right, the safety switches needed   
   to allow the clutch to engage may be open.   
   --scott   
   --   
   "C'est un Nagra. C'est suisse, et tres, tres precis."   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)