jp issue from october has a fix for this problem, so is there any further info cause a picture of the actual wiring isn't helping much.  all the wires are white or yellow but all look the same color, which wires go where?  anybody got a clue.  spent 3 weeks gathering all parts for this and now it is not working in the jeep.  hook it all up and i get a screeching door buzzer noise from the relays.  HELP!!!  

make sure you have the relays wired correctly. each speed will need it's own relay. the relays can all use the same power source and ground, but the speed selector will be the circuit switch for each relay, they can be confusing just take you time, calm down and you'll figure it out.  

thanks alot.  I'll let you know how this goes.  all you guys out there, pay attention. you may need this posting some day as jeep is not planning on fixing this problem anytime soon and this could cause a dash fire.  

already did it on mine, it was easy.  

Okay, now I have blower issues. I have been reading the threads, and checking + re-checking the jpmagazine article to confirm how to wire in the relays. But I'm not much of an electiral wizzard(barely can operate a computer) so can someone tell me how to wire in the relays.

What I understand so far, according to the article :
1) Cut 4 wires coming from blower motor/resister unit (Did that)
2) Attach blower switch to "SWITCH" spade on relay (DiD that)
3) Attach other end of wire coming from blower motor/resister to "GROUND" spade on relay. (Did that)

4) What next???? Do I need to run power to each relay? If so, where is a recommended source to tap into?

5) Can I run the power source through each relay? From one to another to another (like in series)

Hopefully after I figure out the blower switch issue, I will figure out how to make a power point on it and publish it on the internet!  

Okay, now I have blower issues. I have been reading the threads, and checking + re-checking the jpmagazine article to confirm how to wire in the relays. But I'm not much of an electiral wizzard(barely can operate a computer) so can someone tell me how to wire in the relays.

What I understand so far, according to the article :
1) Cut 4 wires coming from blower motor/resister unit (Did that)
2) Attach blower switch to "SWITCH" spade on relay (DiD that)
3) Attach other end of wire coming from blower motor/resister to "GROUND" spade on relay. (Did that)

4) What next???? Do I need to run power to each relay? If so, where is a recommended source to tap into?

5) Can I run the power source through each relay? From one to another to another (like in series)

Hopefully after I figure out the blower switch issue, I will figure out how to make a power point on it and publish it on the internet!  

error  

A relay is just a switch that is controlled electronically. They are used to supply high current without the current going through a switch. That is what you're trying to accomplish. High current to the fan that does not pass through the switch.

Then, your dash switch controls the relay and not the fan. All relays are different. But, they function the same way. Some relays have more, but there are four main terminals that need to be hooked up. Your relays should have a schematic. They should be Automotive single pole/single throw relays.

Tell me what relay you have, and I'll tell you the positions to hook up.  

error  

I went to radio shack and got (4) 30 amp auto relays. There are four spades (poles) "ON/OFF"-#86, "GROUND" -#86, "12v/out"-# 30/51, and "12v/in" - # 87. No other specific manufacture markings on the relay.

Thanks for your timely response!!!  

"ON/OFF"-#86 - 12v from Accessory On (new wire)

"Ground" #86 - low speed cut wire (to fan switch)

"12v/out"-# 30/51 - low speed cut wire (to resistor block)

"12v/in" - # 87 - ground (new wire)  

Can I buy you a BEER! It worked! Thanks a bunch, now let me see if I can do this 4 times (4 relays)  

Can I guy you a BEER! It worked! Now if I can only repeat this 4 times (4 relays)