I had the 86 SDL A/C checked out since it has been working intermittantly. Mech says, High side 155, Low side 45 lbs. Temps 51 degrees @ idle. Says I need Push Button Unit. $350 !!

Since he's getting pressure and temps, he had to jump something (compressor) to get these readings. Question is, what to jump and how ???? It appears that he made a slit on a blue/green 16 guage wire running next to the fuel filter coming up from the Compressor and dissapearing into the firewall.

Is this the +12 ? Wish I had a wiring diagram to make sure. I don't want to fry anything. I would just like to verify it's the PB unit before spending the $350 bucks + $125 to put it in.

I searched but never found anything difinitive.

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1986 SDL
My Other Car is a Porsche. When it stops leaking, I'm out of oil.