I was curious, do any of you know if the climate control unit on a '99 Acura CL would work in our cars? The unit looks similar in size and everything so I thought that if it did, it might be an easier swap. Sorry if this has been mentioned already somewhere else... thanks.
Originally posted by mugenpwr17 I was curious, do any of you know if the climate control unit on a '99 Acura CL would work in our cars? The unit looks similar in size and everything so I thought that if it did, it might be an easier swap. Sorry if this has been mentioned already somewhere else... thanks.
I think I've seen somewhere that the unit is not exactly the same size so it might not fit but even if it was the same size it wouldn't be easier since it's not wiring the unit that's the biggest problem it's the rest.
If everything goes well I should be able to update the write-up this weekend.
Are you guys still trying to figure out the climate control?!! Ive had mine working in my car for over 2 years now , and installed a few of them too, the ones I do FULLY FUNCTION the way they are suposed too. I will do the install for $300 labor + whatever parts that your missing.
In case anyone was curious, mine is now 100% functional (as opposed to 99%). I replaced the backlight in the defroster button so it now works perfectly.
The install is rather extensive, I would say comparable to an engine swap, I did remove my dash for it though. In case you didn't see my other thread I was able to install the evap sensor without draning the A/C though. I did it just like I said I would, black taped it to the straightened coathanger, drilled a hole in the evap housing, and fed it through.
I love this thing, especially the auto function. I don't use the A/C unless I am on the freeway though (A/C+ES motor mounts=too much vibration).
Good luck to all who attempt this and do post questions, we are here to help
Ok, i'm starting to wrap this project up....got the parts needed, most of my wiring is set (Thanks Jean!!), I just need to know what to do with the other wire that comes from each of the sensors, aside from the ones that hook on to the contol unit...anybody?
thanks.... now, should they all be spliced in the 17th pin in the JDM 20-pin connector or just hooked onto any black wire? Or does it make a difference? Thanks again
Well guys friday I started disassembling the car's interior, didn't do much friday since the bugs were after me. So saturday dash was out of the car for the second time this summer, then we had to clean up the garage before I could get the car in. So sunday got the car in the garage, removed the evaporator, blower unit, drained the coolant and we got stuck cause we didn't have a 12mm deep socket to remove the 2 bolts that holds the heater unit (the 2 bolts under the hood). So this morning I got a 12mm deep socket and when I got back from work I removed the heater unit.
I'm now at the point were I have to attach the air mix motor to the heater unit and I need a picture of a JDM heater unit with the air mix and all control cable attached to it. Anybody happen to have one?
Also for people who wired it already and the air mix motor was working the wrong way did switching the wires do the trick?
look on the temp sensor where the wires come out of it they should be labled 1 and 2 the number 2 goes to the unit and the number 1 goes to ground, it doesnt really matter though because the sensor is just a resistor and it doesnt have polarity so it will work either way. The sunlight sensor is the only sensor that the polarity maters on.
thanks caz...sorry to be asking so many questions..i'm so close to finishing this project without any prior knowledge on this type of thing.
I still have two wires left i don't know what to do with..
The blu/yel from the 20-pin, that's supposed to go to the ac pressure switch, should i connect it to the wire that used to connect to the ac thermistor, now replaced by the evaporator sensor?
And the brown/black wire to the heater valve solenoid, what do i do with it if i kept the original heater valve in the car?
Originally posted by Bertico78 thanks caz...sorry to be asking so many questions..i'm so close to finishing this project without any prior knowledge on this type of thing.
I still have two wires left i don't know what to do with..
The blu/yel from the 20-pin, that's supposed to go to the ac pressure switch, should i connect it to the wire that used to connect to the ac thermistor, now replaced by the evaporator sensor?
Yes you should connect it to the wire that use to go to the A/C thermostat.
Quote:
And the brown/black wire to the heater valve solenoid, what do i do with it if i kept the original heater valve in the car?
If you kept the original valve just don't connect that wire.
Well I put the heater back in with the air mix motor attached to it and working well (and the right way) I'll update my write-up very soon, this weekend at the most, maybe I'll do a small update tonight though.
Originally posted by caz Forbidden what did you do?!! There is a Much easier way than putting the air mix motor on the housing.
Wasn't that hard, just takes a lot of time. I wanted to put it where it's mounted on the JDM heater unit but I would've got the reverse temp problem. So that was plan B and it seems to work pretty well. How did you mount yours?
Well nobody can say that you werent determined! lol This is probably gonna bum you out but I installed mine in about 3 hours. You didnt need to take your entire car apart! I did by the way use ALL JDM parts I had thought about using sensors and motors from the acura cl but I wanted it entirely JDM and every part of it functions exactly like the jdm unit , however I chose to remote mount the air mix motor and actuate the flaps by cable instead. I am using all the JDM sensors and motors and the hot water valve as well. I can run the self diagnosis function on the unit with out getting any of the trouble indicator lights.When I first did this about 2 years ago there wasnt any wiring diagrams around it was a total mystery I had to figure it all out by looking at my stock unit and studying the circuit board of the JDM unit and then testing with a meter and power supply to figure out what wire did what, you guys got it easy today! lol Its still one of my most favorite mods
Originally posted by caz Well nobody can say that you werent determined! lol This is probably gonna bum you out but I installed mine in about 3 hours. You didnt need to take your entire car apart! I did by the way use ALL JDM parts I had thought about using sensors and motors from the acura cl but I wanted it entirely JDM and every part of it functions exactly like the jdm unit , however I chose to remote mount the air mix motor and actuate the flaps by cable instead. I am using all the JDM sensors and motors and the hot water valve as well. I can run the self diagnosis function on the unit with out getting any of the trouble indicator lights.When I first did this about 2 years ago there wasnt any wiring diagrams around it was a total mystery I had to figure it all out by looking at my stock unit and studying the circuit board of the JDM unit and then testing with a meter and power supply to figure out what wire did what, you guys got it easy today! lol Its still one of my most favorite mods
Yeah I have all JDM parts too except the power transistor and blower motor high relay, I wanted to try using some USDM parts at first so they would be easier to get but it didn't work out that well. And I finally found someone with all the JDM parts I needed. I thought about using a cable for the air mix motor too but I kept that as plan C I wouldn't have done this without the wiring diagrams, I actually had them and made a new wiring diagram with modifications to make before I had the unit itself. I don't know much about electronics, when you start talking about transistors and the like you lose me, I don't even know how to tell which way the current flows in a diode by looking at the symbol I'm just glad that I'll be finish with this project soon, I've been working on this for quite some time and I paid way more than I should have...
Well it will all be worth it when its done trust me , its a very cool peice, just be sure to put ALL the screws back in your dash so it doesnt rattle! lol
My Write Up is in my head, lol When I first did the install was when the old Hondaprelude.com site was going strong and I would get at least 4 emails a day about the climate control it was crazy, I would have over a hundred emails by the end of the month and it never let up, I just got so tired of it I just deleted them, the attention was nice but to much attention gets bothersome . this was when everybody thought all you had to get was the unit itself and you just pluged it in and it worked, lol. I had actually posted a thread that said "Warning JDM Climate Control read this before you buy" It went into some detail as to how many additional parts and how labor intensive it was and if your not really mechanicly and electricaly inclined that they would be better off passing this mod over.
I have done a few of these now and everytime I mean to take pics but always forget or I just want to get it done. I have a friend that im going to do the jdm install in his prelude so maybe ill take some pics and do a write up then or maybe I should just make a video that would be easier for everybody probably and would have more detail. So If you guys want a video of the JDM Climate control let me know and if there is still enough interest I can make one on the next car I convert so let me know what you guys think . I hate to be the party pooper here though but I would be a little more inclined to do this and go into greater detail if there was $ involved lol, so maybe let me know what a fair price for the video would be that you guys would be willing to spend, Im not trying to get rich here but my time is worth money and I can get pretty busy sometimes and Im trying to finish my lude for the magazine feature so extra cash is always welcome.
Originally posted by caz Well it will all be worth it when its done trust me , its a very cool peice, just be sure to put ALL the screws back in your dash so it doesnt rattle! lol
My dash has always rattle a lot, I'll have to check out if there's some screw missing somewhere... I just installed it this morning so I could drive the car today but I'm taking it out again tonight cause I still have a few things to do and I think I screwed up my blower's wiring when I redid it to hide the wires near the main harness. And I still have to wire the sensors. Should be done this weekend!
there's a rectangular aluminum sensor or something next to my air mix motor that has a pink and a ltgrn/red wire coming out of it, there's also a pink wire coming out of my control unit that's not featured in the wiring diagram, so i assume the pink wire should connect to that one.
does anyone know what this thing is for and whether i should connect it and where??
can you post a pic of the sensor? Normaly the Pink wire on the unit does not get used , however the wiring on the climate control had a revision in the later years, post a pic of the sensor so I know which one your talking about for sure.
You know, I was thinking about that sensor. I remember you posting a pic of it a while ago. Is it possible that it is a "final temperature sensor"? Like the CC knows how cold the evaporator is and how hot the outside air is but maybe that is used as a final measurement.
I searched and in an older post by go pre it says it goes into the heater core, but he says on the USDM there is no mount for this, so i think i'll ignore it too for now...unless someone knows for sure how it's mounted, since most of you haven't used it anyways..
I tried to post the pic but i can't find a way to, how do u guys post pics?
if you go to this thread it is in the third pic:
Well I just finished my install, finally! Well almost finished, the climate control install is done but I still have a few plastic panels to re-install. I went for a little 5 minutes ride to check that it worked okay and it seems fine. Though I haven't checked A/C yet since my system is empty and my compressor isn't connected. I'll update the write-up very soon!
Bertico78: I believe it's a sensor for the heater core but I'm not sure either. If you wanted to install it, you'd need to make a hole in the heater unit under the heater core. I thought about installing it but I decided not to in the end.
was anyone going to do a step by step write up eventually with pictures?
__________________
Brandon
Captain - my other car has two engines
1993 Prelude Si (JDM H22A with automatic to 5spd Swap) My white 93 Vtec
AIM: Mach30SiR
Congrats Jean !! I am almost done with my install too....taking a little break now....the blower and the air mix motor work perfectly You are the MAN!!!
I'm just having trouble finding the Vehicle Speed sensor(VSS) to connect that orange wire to. Is it all that necessary that i do so?
If it is, where is it??? lol
One last thing, can anyone post pics or explain exactly how the air mix motor gets mounted with the USDM air mix cable?? I have yet to figure out where or how to place it so the cable doesn't bend too much over to the side.....
I just thought of something, since the VSS connects to the speedometer, it's the #5 (orn)wire going into harness H in the gauge cluster, so i could just tap into there, right?
still not fully done just run into two problems......one, the air mix motor only opens the heater doors halfway, that's while using the USDM cable.
Second, when i press the AC button the fans in front of the engine do not engage, could that be because the evaporator and blower are still not back in the car??
Originally posted by Bertico78 still not fully done just run into two problems......one, the air mix motor only opens the heater doors halfway, that's while using the USDM cable.
When you clip the cable make sure you have the motor at full hot or full cold and the heater doors at the same place.
Quote:
Second, when i press the AC button the fans in front of the engine do not engage, could that be because the evaporator and blower are still not back in the car??
Since the evaporator is not in the car it could well be it. I don't think the compressor will engage if there's no pressure in the A/C system. So I'm thinking that if the compressor doesn't engage, maybe the A/C fan won't either...
yes the doors and the motor were aligned, at full cold, i secured the cable sleeve to the motor so that when it's fully pulled (for coldest setting) there is no space between the sleeve and the cable, but it doens't pull any further. when i set the unit for 32 degrees it will feed some cable, but not enough to fully open the doors, could this also be because the sensor doen't allow it to make it any hotter since in miami it's hot all the time??
forget that, i placed an ice bag on top of the sensor but either way the lever only yields about 1 and 1/4 inch of cable when placed at hottest setting, because of the mechanics of the motor.....even if it rotated more it would not feed more cable to open the heater doors further Has anybody solved this problem when using the USDM cable?
Today i installed the blower and the evaporator back in my car after three weeks being out. The JDM unit works awesome, but the A/C still won't engage. Once all this stuff in put back shouldn't the condenser and radiator fans engage even though the freon was emptied?? Or it will not until it's charged again?
I'm thinking i might have hooked a wrong wire or something..
Originally posted by Bertico78 Today i installed the blower and the evaporator back in my car after three weeks being out. The JDM unit works awesome, but the A/C still won't engage. Once all this stuff in put back shouldn't the condenser and radiator fans engage even though the freon was emptied?? Or it will not until it's charged again?
I'm thinking i might have hooked a wrong wire or something..
If the system is empty the compressor might not turn on since there's still no pressure in the system and the A/C pressure switch will prevent the compressor to start.
It's official!! i finally have a fully functional JDM CC!!!! It works perfect!!
Got the freon charged today...i love it, it's sweeeeet
This was the first mod i've done on my own....thank you all for the suggestions and advice!
wish i had more time and money to get my AC working. selling the car anyways, so not TOO motivated to fix it, but i think its the reason why alot of people arent buying the car.
when i get my 240, im going to have to do the climate control install in it, so i guess i will give it another try. hehe
oh snap. i just put 2 and 2 together. i was wonderind why my ac button didnt work. jez, what i THOUGHT was my jdm thermostat was really that metal square sensor that goes on the heater box. thats why i couldnt figure out why you guys were putting in in place of the usdm thermostat when its on the heater box on jdm ludes. sooo, ive been thinking this thing was the thermostat, but its NOT! hmmmmm, interesting. i might just have to start this project again. i hate leaving something unfinished. anyone have a picture of the jdm thermostat thing so i can go get one from a junkyard from an acura. i know where its at, just wanna make sure they are the same. wish somebody woulda slapped me when i was talking about that heater box sensor. what help are you guys? :-p
do u mean the evaporator sensor??
It's just a wire capped off with a rubber shrink, looks almost exactly like the usdm evap. thermostat, sorry i do not know how to upload a pic
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
to me.
just run into two problems......one, the air mix motor only opens the heater doors halfway, that's while using the USDM cable.
Linear Mode
