Fan Blower Bypass - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 01-07-2008
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Fan Blower Bypass

I am not sure if this is possible, but i was wondering if there was a way to bypass the resistor, or fan speed controller on EATC models, just to get the fan to come on. I just installed the EATC and due to a bad fan speed controller I have no heat and i need heat so my windows do not fog up. I thought since the high speed of the fan is supposed to bypass the fan speed controller if the controller failed a certain way, which mine failed completely and will not even allow the high speed to come on. I thought maybe hooking power up to the fan blower, or using some other wire? I don't know, but I was foolish and installed the EATC without taking all of the precautions.
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Old 01-07-2008
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can you just hook the 2 wires together at the connectors?
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Old 01-07-2008
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i was going to try and hook them together, but i do not want to short anything out
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Old 01-07-2008
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put a 25 amp fuse in line
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Old 01-07-2008
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hmm i hate to wreck anything, i might just wait until i get a different fan speed controller
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Old 01-07-2008
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I may have a good fan speed controller......let me look tomorrow when I get home from work......you are talking about the resistor right?
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Old 01-07-2008
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yes, the one for the EATC. They cost 69 dollars from Ford, and im not 100% sure that is my problem
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Old 01-07-2008
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I got a new one because I thought mine was bad.......it wasn't so I left the new one in......I will look and if I do you can have it if you pay for shipping......


You might have a couple wires wrong.....take a picture of your fan speed controller wires and I will take a look
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Old 01-07-2008
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ok i will take a picture i am pretty sure i did it right, but a second opinion is always welcome.
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Old 01-07-2008
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I thought I did it right too, but I had it wrong......not saying you do for sure
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  #11  
Old 01-07-2008
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Here is how i have it hooked up.
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Just like the how to said
OR/BK Truck = BR/OR Controller
GR/WH Truck = WH/PK Controller
YE/RD Truck = TN/OR Controller

I remember reading that you had it hooked up wrong, but i dont remember how you had it
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Old 01-07-2008
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is the o/b from the truck the one that goes into the harness? It looks like the o/b wire to the truck is capped off and not attached to anything.....it looks like the controllers o/b wore is plugged into the other plug which goes to nothing
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Old 01-07-2008
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the OR/BK wire from the trucks harness is connected to the BR/OR wire on the FSC connector. The OR/BK wire from the FSC connector is connected to the blower motor OR/BK wire. The OR/BK wire that was originally hooked up to the blower motor is taped off.
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