i want to put this in my car too....but heres the catch..I dont care if it works like it should ie climate control....just that i can turn the AC on and off..blow cold air..and control fan speed..and also turn on heat...but it doesnt have to keep the temp the same..do i need the sensors to do that..basically it would work like mine does now, except be digital and look better..let me kow...peace
Originally posted by go pre just picked up a jdm control unit off ebay for 50 bucks.. looks like I might try this conversion too. which parts are you positive that you can use from the CL so far? i'd like to start searching for some of the other stuff now while i'm waiting for the unit to get here.
You can use all 4 sensors from the CL, though I don't know how the 2 interior ones blend in the dash, I was supposed to get a power transistor from a CL but the guy didn't send me the right thing so I guess I'll have to call them back and wait so I'm not 100% sure about that... for the air mix control motor as long as the connection is the same it should work but I don't have that motor yet
Originally posted by redpreludevtec9 are you saying you have to remove the evaporator and the heater blower or just one of them?
If you want to control the fan you have to remove the blower resistor, the Helm says you can remove it without removing the blower but I tried and I decided to remove the blower it was easier, and you have to remove the evaporator to remove the blower, also there's a sensor for the evaporator so you'll have to remove the evaporator to put it in.
Originally posted by PreludeRacer023 i want to put this in my car too....but heres the catch..I dont care if it works like it should ie climate control....just that i can turn the AC on and off..blow cold air..and control fan speed..and also turn on heat...but it doesnt have to keep the temp the same..do i need the sensors to do that..basically it would work like mine does now, except be digital and look better..let me kow...peace
Well once you can control the air mix and the blower you pretty much done the hardest part, sensors would just be a few more wire to add. Though I don't think you'd need the sensors if you don't want the auto function but after you done the rest why not connect the extra wires for the sensors?
can any of these parts be had from the acura dealer? if so do you know how much they run? also, do you have any pics of what these parts look like? thanks.
You can check on www.acuraautomotiveparts.net for a 1997 CL, I think any model should have the parts, there's a section for the sensors, it has the 3 sensors you need in there, then there are a few parts in the heater blower section, the heater unit and the A/C unit I think, parts go up to about 250$ I think. The problem is that if you buy the parts new from Acura you might not have the correct connectors or stuff and parts like the transistor don't come with any wires on it, I'll put a diagram of the parts in my write-up soon
Yes this unit is almost complete, though you'd probably missing the power transistor and blower motor high relay and the rest of the parts for the heater valve, also the complete wiring harness would probably be useless other than for the connectors but from what he wrote all the sensors already come with all the plugs and a few inches of wires
does yours blow air yet? i hooked mine up according to your writeup today, the recirc motor and rear defrost work ok, but i can't get it to blow air. actually, i didn't hook up all of the mode control motor wires because there were a couple that were the same color and i couldn't decide which to splice into. i think it was the blue/red and the yellow/green wires on the usdm harness that had 2 of each of those colors. is there any way i can test with the multimeter for which wire i need?
the BLU/RED that's in the corner of the connector on the side that has only 3 wires is the No. 1 wire don't use that one for the mode control motor, use the one that's on the opposite end of the connector, for the YEL/GRN use the No. 16 wire, it'S in the opposite corner of the No. 1
Mine doesn't blow air yet, I was waiting for a part from the scrap yard but they sent me the wrong one and when I called back they said they didn't have one so I'll have to find one somewhere else, my car is going to get painted next week, so I won't be able to continue working on this but I'll try to find the parts and when I get my car back I'll be able to hook that up and I'll update my write-up
yeah, i would have gone by the pinouts on the connector but i snipped it off before i started anyway, I was looking in the helms and it seems that the fan control wires are on the 5-wire usdm harness. i'm assuming these will have to hook up to some wires on the jdm harness. are you going off of a schematic for matching these wires or are you just testing each one? it would be really helpful to have a schematic for the jdm harnesses.
if you have any other info on what wires to hook up i'd be interested in hearing it.. maybe i can let you know if they work. I already cut my harness so I'm pretty much without a climate control until i get it hooked up
ouch... I should have said in my write up to cut the wires one by one as you connect them, it makes things easier
There's quite some changes in the blower control wiring first of all you need the blower motor high relay and a power transistor (these are 2 parts I don't have right now but I'll be ordering soon), the biggest problem will be finding connectors for those, I'm gonna try a fog light sub-harness for the relay but for the transistor I guess I'll have to solder to wires to it. You won't be using the 5 wires connector at all. I'll try to add the blower control in my write up sometime this weekend.
Well I just updated my write-up with the blower control wiring, please note that I haven't test it out yet though since I don't have all the parts yet, I'll test it out when my car will be back from the body shop cause I'll probably have the parts by then. If somebody tries it let me know.
thanks for updating the writeup.. btw, wouldn't it be possible to just use an ordinary transistor and relay for the blower circuit? they can't be that much different from the ones you buy at radioshack, especially the relay.
For the relay I plan on using a Prelude fog light relay so I can get the sub harness to connect it, but I guess as long as the relay is 12V it should be ok. For the transistor I have no idea how they mesure that or anything so I'm gonna use one from an Acura CL or at from another Honda/Acura to be on the safe side. Also for the transistor the thing is it goes in the blower unit (I guess it's only so it doesn't get too hot or something like that)
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anyway, I was looking in the helms and it seems that the fan control wires are on the 5-wire usdm harness. i'm assuming these will have to hook up to some wires on the jdm harness. are you going off of a schematic for matching these wires or are you just testing each one? it would be really helpful to have a schematic for the jdm harnesses.
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