Biba,
I'm so sorry. After researching your question. I forgot all about it.
To answer your question, I don't know. I looked thru a few parts books and the only switch I could find that's fitted to a pressure line is shown as being on the compressor for the Berlina/GTV 2000. However, for the Berlina 2.0, there appears to be a switch on the receiver/drier (no compressor switch). If it is a switch, it is not listed as a separate, replaceable part (not to mention that this parts book lists only key and part numbers; no part description).
Given my understanding of A/C systems, the high side pressure is related to refrigerant temperature. Measure the resistance between the two switch terminals. If zero ohms (or thereabout), my guess would be that this 'thermal switch' may a safety device to cut power to the compressor in the event the high side pressure exceeds a certain value. If the resistance is infinity, the switch may be to prevent compressor operation if the A/C system is devoid of refrigerant (or the switch is broken
). I recall though that a low system pressure switch would be on the low, or suction, side of the system, not on the high side where the receiver/drier is.
taccone,
1988 Spider wiring diagrams have been sent (sorry, no 1989).
Linear Mode
