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Cooling fans not working

Tiny
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No, I told you on that relay of pic I sent you only 3 have power going through it.
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Thursday, July 9th, 2020 AT 11:19 AM
Tiny
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3 little holes.
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Thursday, July 9th, 2020 AT 11:20 AM
Tiny
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Which it’s these three.
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Thursday, July 9th, 2020 AT 11:22 AM
Tiny
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Okay, I attached your answers that told me all the terminals had voltage.

Still, only 2 should have voltage, not 3.

Roy
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Thursday, July 9th, 2020 AT 12:16 PM
Tiny
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Okay so only two should I get you now. Okay, so yea udk man I might have to take it in so where because I do not know the deal.
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Thursday, July 9th, 2020 AT 12:30 PM
Tiny
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I understand. Tracing electrical takes time and you need the experience to determine the issue.

Roy
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Thursday, July 9th, 2020 AT 12:36 PM
Tiny
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Yea, thanks a lot. I don't know where to take it but I got to see.
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Thursday, July 9th, 2020 AT 12:40 PM
Tiny
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Ask the shops if they can do electrical work. Some will say yes and some will say no. Check with them first.

Roy
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Thursday, July 9th, 2020 AT 1:02 PM
Tiny
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They are telling me that computer is not reading it, so I would have to install a new one.
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Friday, July 10th, 2020 AT 1:41 PM
Tiny
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But I was thinking if I install a switch for fan to turn on would it effect anything?
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Friday, July 10th, 2020 AT 1:42 PM
Tiny
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The reason the ECM cannot see it is the wiring issue, not the computer. If you replace it, the same issue will be present.

Roy
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Friday, July 10th, 2020 AT 2:39 PM
Tiny
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They said something that it’s not getting the ground, but if I put a switch to make them go on for now would damage anything?
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Friday, July 10th, 2020 AT 2:44 PM
Tiny
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With a shorted wiring harness, it will not work. You may cause more damage.

You would need to run separate wires from a switch to the fans themselves. Do not use the existing harness. You would need a fused power wire to the switch and then run a wire to the fan. You will also need a ground for the fan motor as well. The second wire in the connector is the ground.

Roy
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Friday, July 10th, 2020 AT 3:01 PM
Tiny
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Okay, I was just saying so. If I decide to do that and he told me that the PCM is not getting the ground when it needs to.
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Friday, July 10th, 2020 AT 3:02 PM
Tiny
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Correct. The ECM cannot ground a wire without a signal from the wire.

Roy
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Friday, July 10th, 2020 AT 3:13 PM
Tiny
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So that means a wire is doing something or what?
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Friday, July 10th, 2020 AT 3:43 PM
Tiny
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There is harness damage as I have stated many times. Somewhere in the harness the wires are damaged either shorted together giving power where they should not and some are broken not sending power where needed.

Roy
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Friday, July 10th, 2020 AT 3:50 PM

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