Help! A/C system wiring - anyone know where this 4-wire junction is located?
 

Last big project following the 3.6 conversion was refurb and upgrade of the A/C... all the hard stuff went well, and then...

Does anyone know the location of the 4-way common connection "J/C (4 POLE) (LT)" shown circled in pic below? When A/C blower is on, this powers front condenser relay and compressor clutch via the temp (twisty knob) control switch. Meanwhile looking through docs hoping for clues.

With A/C blower turned on, power is getting through temp switch OK, and front condenser relay and fan operate - just no power to clutch terminal in engine compartment, so either the clutch wire got pulled out of this 4-pole J/C , or the wire from it to the clutch got accidentally cut (but not shorted) someplace... and clutch works fine stuffing 12V on it directly.

From the A/C clutch, the single wire goes forward separately along passenger side to front of engine compartment... can't see or feel anything up there; and the green wire that feeds power to this 4-way J/C from the temp control switch goes to a connector in the smuggler trunk (the other connector in the smuggler trunk goes to the evap blower). I know the brown ground wire in that same connector (used for the evap blower motor) runs somehow across or around the luggage compartment to a ground stud to the rear of the fuse panel area...

In the meantime, I'll run a temporary wire... at least to finish charging & testing everything...

http://forums.pelicanparts.com/uploa...1346980951.jpg

Same thing happened to me when I did my A/C project earlier this year. I spent about 10 mins tracing the thick green wire up to the middle of the harness to the rear that runs along the side of the passenger seat. Then I gave up and ran a new wire from the temp switch back. I guess I'm a quitter.

LOL, but I'm not sure I can stand to leave it that way... it worked before the conversion. I believe I've just found the pesky thing in the parts diagrams... marked by red arrow. I think "11" is the clutch wire and "1" & "3" are the front condenser blower relay and connector. Also looks like the upper left cable, connector & relay is the stuff in the smuggler trunk - the cable runs with the blower ground to the fuse boxes area, so the drawing *maybe* suggests the 4-way junction might be up front somewhere around or behind the fuse boxes.

I'm pragmatic, but I hate letting this stuff beat me... :)
http://forums.pelicanparts.com/uploa...1346984692.jpg

11 is your guy, plugs into the plastic connector at the end of 12.

Found it!
 

Dug around last night... Found the wire junction connector by tracing wiring from front condenser relay - it's below luggage fuse boxes, underneath fuel tank filler hard pipe, behind white rectangular expansion tank... and best of all, the A/C clutch wire was disconnected and folded back over it. It does look then like it was inadvertently removed during the engine conversion - there was no 4th wire connection to the junction which would have been the DME wire in the removed 3.2 harness.

Also noted a potentially exploitable difference in front condenser fan wiring/op on 993 - will post in one of the front condenser upgrade threads about that...

http://forums.pelicanparts.com/uploa...1347028228.jpg

http://forums.pelicanparts.com/uploa...1347028243.jpg