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I have a 2007 Ford Edge with towing package. My wife hit a

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deer and it broke the...
I have a 2007 Ford Edge with towing package. My wife hit a deer and it broke the cooling fan assembly. I've replaced it with a new assembly. Now the fans won't come on at all. I've tested the fans with direct power and they both come on. I'm also getting voltage at the plug going into the fan control module.
Submitted: 1 year ago.Category: Ford
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10/4/2016
Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago
Mike S.
Mike S., ASE Certified Technician
Category: Ford
Satisfied Customers: 7,645
Experience: ASE Certified Master Technician
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Hi, I am Mike, welcome. I'm reviewing your question.

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Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

I believe the next step would be to retrieve the trouble codes to see which may refer to this problem because the pcm relies on a sensor to control that module and turn on the fans.

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Customer reply replied 1 year ago
I have a P0480
Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

Perform this PINPOINT TEST KN

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Customer reply replied 1 year ago
Ok, I'm getting 12.7 volts on the first test. I don't have a 1.6 ohm resistor for the next step.
Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

Skip that test then. Or go to radio shack or somewhere and get a 1.6 ohm resistor.

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Customer reply replied 1 year ago
Ok. On the next test of checking resistance between pin 4 and ground with the key off and pcm connector disconnected. I assume that means unplug the pcm at it's connections?
Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

Yes, it said "PCM connector disconnected"

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Customer reply replied 1 year ago
Ok, I get 1 on my multimeter. But it shows 1 before I ever touch it to anything. When I touch the leads together, it jumps to 4 and goes down to 0.
Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

1 what? ohm? if you zero the meter first then try again.

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Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

Even so if the reading is less than 10k ohms, that's 10,000 ohms, "REPAIR the short circuit. CLEAR the DTCs. REPEAT the self-test." That was test KN6, correct?

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Customer reply replied 1 year ago
Test KN5 no voltage from pin 4 with key on engine off with pcm disconnected.
Customer reply replied 1 year ago
Kn6 no resistance in pin 4 with pcm disconnected and key off.
Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

So you meant 1 volt?

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Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

Why would you be jumping your multimeter leads together when on dc volts?

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Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

You got me confused now. You said you were checking resistance, that's step kn6, then you say kn5, that was the voltage test.

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Customer reply replied 1 year ago
On the ohms setting my multimeter read 1 as soon as I clicked it over to ohms. When I touched the leads together it jumped to 4 ohms and then zeroed out.
Customer reply replied 1 year ago
I checked volts first (kn5). Then checked resistance (kn6).
Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

Ok, no voltage at kn5 is less than 1 volt. and the answer to kn6 is less than 10,000 ohms, so REPAIR the short circuit. CLEAR the DTCs. REPEAT the self-test

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Customer reply replied 1 year ago
Ok, so basically I'm chasing wires now.
Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

Let's back up here, at first you said 1, which I assumed meant 1 ohm, then you said no resistance. What did you mean by no resistance? zero? or infinity such as an open?

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Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

If you meant zero, then that white/blue wire is shorted to ground. That is what I interpret from that.

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Ford Mechanic: Mike S., ASE Certified Technician replied 1 year ago

Did that answer your question? If so, kindly leave me a positive rating, so I get credit. After all, you have already made the deposit.

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Mike S.
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