2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

logicon wiring

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Old Jan 15, 2005 | 06:03 PM
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From: chicago land
Exclamation logicon wiring

ok i need heat so i am putting my logicon back in. suprisingly it only took 10 minutes to get the long harness plugged in. no i have the large plug connected in the back so the lights work and the button to take air from outside or from inside turns the motor. now my stereo was stolen and for some reason they felt it was necessary to cut the other plug. so now i have 4 wires with no harness. i was wondering what wire need to be connected to what part of the female plug on the logicon. there is a blue/yellow stripe, blue/orange stripe, green/white stripe, green/red stripe. it is an s4, and i need to find a plug i can cut from something else to use for this or if there is a way to connect those wires to eachother to turn the blower on. if anyone can help me it would be great, its supposed to be 8* tommorrow.
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Old Jan 15, 2005 | 06:27 PM
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From: chicago land
bump, anybody have there logicon out right now? i just need to know what wire is where on the harness
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Old Jan 15, 2005 | 06:36 PM
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From: chicago land
i bet icemark knows the wires by heart but hasnt read this post
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Old Jan 15, 2005 | 06:51 PM
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From: chicago land
one more question, what way do i tie the lever for heat, my logicon temp control wont work so im ziptieing the stupid thing
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Old Jan 15, 2005 | 08:12 PM
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From: chicago land
also, i was searching through icemarks posts on this and he said you can activate the air mix motor buy running power to the yellow and green/white wire to set it on heat. if hes talking about the plug up above the airmix motor, i cant even see the wires or get the harness free to pull it out a couple inches to work on it. if anyone can help me get heat i will be on here for a long time tonight because i realy need help
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Old Jan 15, 2005 | 09:09 PM
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From: Rohnert Park CA
Originally Posted by Mint87RX7
there is a blue/yellow stripe, blue/orange stripe, green/white stripe, green/red stripe.
This is the small 5 pin plug right??

Blue/Yellow is High speed blower relay
Blue/orange is the blower transistor
LtGrn/White is the refrigerant pressure switch
Grn/Red is regular speed blower motor

Looking at the plug on the back of the logicon it is like this like this:
LG/W _ L/O
_ G/R L/Y
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Old Jan 15, 2005 | 09:53 PM
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From: chicago land
god thank you so much, you know how you said in another post that you can run power to the air mix plugs yellow wire and ground the green and white? well it work but it takes hours to get the damn plug in a position you can get to to do it, nobody ever try it, you will get mad and throw stuff. again thanks icemark
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Old Jan 15, 2005 | 10:05 PM
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From: chicago land
well i guess that unless i find a plug that will fit in the back of the logicon, its not going to work anyway. is there any way to wire a switch to one of the wires to kick on the blower? i know this could all be fixed much easier by replacing the bad parts but i need it to work tomorrow and then i will fix it right this week
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Old Jan 15, 2005 | 10:26 PM
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From: chicago land
could i just run 12v to the green/red or would that just fry the blower?
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Old Jan 15, 2005 | 11:08 PM
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From: chicago land
how about the blue/orange wire?
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Old Jan 16, 2005 | 12:52 AM
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From: chicago land
ok well i got it to vent warm air in without the blower but i broke a lot off plastic and my parts car has a different color interior
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Old Jan 16, 2005 | 10:22 AM
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From: Rohnert Park CA
Originally Posted by Mint87RX7
how about the blue/orange wire?
No, it is a variable voltage wire
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Old Jan 16, 2005 | 10:23 AM
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From: Rohnert Park CA
Originally Posted by Mint87RX7
could i just run 12v to the green/red or would that just fry the blower?
well, that switches polarity based on what is on the LtGrn/Blk wire
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