AC not working after Meth install.

Joined
20 March 2009
Messages
1,348
Location
Toronto/Cancun
Hey guys,
Well I think I screwed up my AC somehow.
After I installed my meth kit, which is working flawlessly , I took my car for a drive and when I turned the knob for the AC It didn't worked right away , it took a little while. then the lights on the AC unit went out, Then it just started blowing on the fastest speed and still that way now.

I think the AC relay might of blown?!
I have three gauges taking power from the radio switch-power wire and now the meth LED light and the meth control box are being powered from the same wire, would that be drawing to much power hence making the AC relay blow?

Any help on the subject will be appreciate it.

Which one is the relay I should be checking under the hood?

Thanks,

-MSR
 
I though abot that, but the unit was working flawlessly the same morning just before running the wires for the meth kit.

Its just blowing on the fastest setting constant.

I undo all the wiring I did for the Meth kit just to see if the wiring had been the problem, but no luck.

I am thinking a short maybe?

-MSR
 
I had a similar issue with my CCU recently however my symptoms where different. It was simply just dead. I almost sent it to Briank a second time but he had just refurbed it last year so I was even more doubtful it was a CCU problem. It turned out to be something else and I found the culprit but if your CCU has never been refurbished now is as good a time as any. I'd start first if it was me.

I know it seems like a super unlikely incident but in this case with the intermittent CCU problems you mention it's likely time for a refurb. With that said there is a fuse in the kickpanel that controls ignition power to the CCU, ABS, TCS, Radiator fan. The fuse may be fine but perhaps something is wrong in that circuit somewhere. It all depends where you tapped into 12v Ignition for your Meth kit.

EDIT: Jebus, i realized this was my 2000th post.
 
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Several of us have been thru this CCU problem of blowing high all the time or other various quirky CCU behavior. Like I was saying.. if it was completely off then go check the fuses and relays and such. If it's behaving funny then the control board on the CCU is likely the culprit.

You can also order the capacitors yourself and change them on the CCU board. There's a few DIYs on here for that. Not for the faint of heart I must say...
 
Ok, everybody but me was right. ;)

I tried swapping relays , checked fuses and everything checked ok.

Then I took the unit out ,opened it up and seems like a couple capacitors are leaking.

I will get in contact with Brian to see if he can fix/rebuilt the unit for me.

I am relieve that the unit it self is the problem and not the wiring, I was really worry, I am tracking on Sunday and I wouldt want a short catching fire.
Here a couple iPhone pics.
 

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And waiting can make it more risky/difficult to repair. Send it in right away, or consider cleaning up the ooze in the interim with some very gentle swabbing with isopropyl alcohol. The electrolyte is corrosive and will eventually eat away any trace it covers, so simply soldering in new capacitors may not be enough. When I repaired mine, I had to run a lead from one capacitor over to another pin on the backside of the board because the trace was destroyed. Luckily it was just one, and luckily it wasn't so bad that I couldn't figure out where the lead needed to go. Destroy enough of the board, and you might really have to guess. I replaced all caps, but I took good pics of the board with traces visible just in case I might need them sometime in the distant future. Simple continuity testing will tell if the traces are good.
 
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