Wiring diagram needed

julian · Post by **julian** » Sun Nov 11, 2007 8:56 am

I am after a factory air-con wiring diagram. Time to get serious about my non functioning A/C before a forecast 36deg day next weekend.
Either post here, PM, or julianbarson{AT}hotmail{dot}com
Thanks

Chris_Rogers · Post by **Chris_Rogers** » Sun Nov 11, 2007 5:07 pm

so is this a JDM AC unit or JDM car? what part do you need help on?

julian · Post by **julian** » Sun Nov 11, 2007 7:26 pm

From my other thread, quoting the last owner of my car:

Gremlins wrote:my memory of the aircon side of things is not real good, but the aircon wiring in your car is stock standard australian delivered touring wagon wiring. It is a seperate wiring loom as the vehicles at the time were sold with airconditioning as an option.

Just need to know:
where the in dash switch leads to,
where the fan switch in the dash goes to,
where (if any) thermostats get their signals from,
etc,etc

Thanks.

dale147 · Post by **dale147** » Fri Nov 30, 2007 10:31 pm

email me at [email protected] Julian and I'll send you a copy of the diagram you need.

Cheers
Dale

dale147 · Post by **dale147** » Fri Nov 30, 2007 10:33 pm

I'll send you a copy of the wiring diagram over the weekend if you still need it Julian. Is it for an outback your chasing?

Cheers
Dale

julian · Post by **julian** » Sat Dec 08, 2007 11:31 pm

Sorry Dale, didn't see you had replied. I sorted the problem, and all is good and cool. Ta anyway.

Busdriver · Post by **Busdriver** » Fri Jan 11, 2008 8:34 pm

Does anyone have a wiring diagram for the A/C switch circuit of a 91 L series wagon? My switch has no power getting to it and I think it is my heater fan switch playing up, as when it was working it would only work when the heater fan was turned on and I was wondering about hot wiring 12 volts direct to my A/C switch.

I have a Gregorys, No. 501, but it does not have a wiring diagram in it that shows A/C.
Any help appreciated.

Chris_Rogers · Post by **Chris_Rogers** » Fri Jan 11, 2008 8:55 pm

also check the fan speed resistor in those. this is a ADM one I take it with teh AC retrofitted?

Busdriver · Post by **Busdriver** » Fri Jan 11, 2008 9:20 pm

Dunno, looks original but not familiar with ADM? Above the glove box, near the relay, it has a chrome knob like an adjustment for the T/stat? Does that help?

Fan working O/K, so I think the resistor is good.Only the A/C wont turn on, and no power to the A/C switch.
Also tried the two wires at the high/low pressure cutout switch joined together and did nuthin either.

Chris_Rogers · Post by **Chris_Rogers** » Fri Jan 11, 2008 9:43 pm

take a pic of the engine bay and the two body plugs on top of the firewall. that will tell me.

can you manually fire the compressor? IE +12v to the compressor coil (via a fuse of course.) if so track back from there. most of those looped the COMP via the limit switches then to a thermoswitch on the inside core (to stop freezing of the core.) so I would start there. jumper the inner one as well as the low/high limit and check the COMP control lead with a meter (D/C the compressor.) and if it shows up there then the inside switch is buggered..

there is a work around for it but I'll get to that once you have done the above.

Busdriver · Post by **Busdriver** » Fri Jan 11, 2008 9:52 pm

Thanks Chris, I will take some pics tomorrow hopefully, and get back to you after I have tried all of the above.

Appreciate your help,espec as it looks like you have got enough to do ATM with that new beast of yours !

BTW, gotta love that spare, Original Jap issue?

Busdriver · Post by **Busdriver** » Sat Jan 12, 2008 2:34 pm

Done what you suggested Chris and it looks like the switch is no good.
Got pics for you, but not sure how to attach.
Since I can hotwire the Comp, any reason y I cant just run a new power feed to the comp through a new switch?

Oh, and according to the label behind the glove box it is Prestige Auto air brand.

Chris_Rogers · Post by **Chris_Rogers** » Mon Jan 14, 2008 12:08 pm

can't permanently wire the compressor on.. coil will freeze up. do this:

find a 96 inpreza and grab the evap switch off it - it is a little black box with 3 wires going into it. grab the harness also.

that has 3 wires on it.
one goes to your switch the next to ground and the third to a relay. that relay will power the compressor. the relay output is +ve so you will have to wire accordingly. from there unplug the old switch and plug it into the relay in this fashion:

30- supply
87 - compressor
86- - gnd
85 - EVAP switch

that will cycle the compressor on/off.

problems - ask