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Cooling fan turns on only once

Tiny
BETA1219
  • MEMBER
  • 1995 HONDA ACCORD
  • 2.2L
  • 4 CYL
  • 2WD
  • MANUAL
  • 189 MILES
My cooling fan only turns on once. I have to disconnect the battery terminal and connect back again. So it comes on again. AC fan is working perfect. I trouble checked both relays, all the fuss thermal fan switch. Everything is working perfect. Need help.
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Saturday, May 26th, 2018 AT 8:41 AM

13 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Hello,

You have to replace the fan control module here is the locations (below). Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
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Sunday, May 27th, 2018 AT 1:16 PM
Tiny
BETA1219
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Thank a lot Ken. If I disconnect the battery terminals for one day. And connect back again. The cooling fan turns on when I turn on the A/C. But when I turned off the A/C, and turn on again, cooling fan will not work again. A/C fan works perfect.
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Sunday, May 27th, 2018 AT 3:00 PM
Tiny
KEN L
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  • 47,643 POSTS
Yes, this sounds like the fan control module. Have you replaced it yet?
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Monday, May 28th, 2018 AT 9:38 AM
Tiny
BETA1219
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I ordered the part. It is going to arrive in three days.
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Monday, May 28th, 2018 AT 10:17 AM
Tiny
BETA1219
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What part is this?
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Monday, May 28th, 2018 AT 10:26 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The diagram shown is not a part by itself. It is a junction connector where wires are joined.
When the fan stops, give it some knock to see if it starts working again. There is a possibility the fan is running out of carbon brushes and works intermittently.
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Monday, May 28th, 2018 AT 8:58 PM
Tiny
BETA1219
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Fan control module, have to be the problem. That is corrosion, but why is the reason for that?
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Tuesday, May 29th, 2018 AT 3:28 AM
Tiny
BETA1219
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Probably need to check the ECU connector?
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Tuesday, May 29th, 2018 AT 3:34 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Yes, you found the problem, corrosion is normal after time and usage. Clean the connector contacts before installing the new part.

Let us know what happens.
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Tuesday, May 29th, 2018 AT 9:43 AM
Tiny
BETA1219
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Hi ken, I cleaned the connectors, and everything is working perfect. Thanks a lot for the help.
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Thursday, May 31st, 2018 AT 2:28 PM
Tiny
KEN L
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Nice work, we are here to help, please use 2CarPros anytime.

Cheers, Ken
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Thursday, May 31st, 2018 AT 7:21 PM
Tiny
BETA1219
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Hi ken, same problem again. Could it be the ECU?
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Tuesday, July 24th, 2018 AT 6:19 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Did you replace the radiator cooling fan motor when you did the controller? If not then the fan motor is going bad pulling too many amps through the controller and you must clean the connector thoroughly or that will cause issues as well. Here is a guide to help you see what you are in for when replacing the fan and diagrams below for your car:

https://www.2carpros.com/articles/replace-electric-fan-motor

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
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Wednesday, July 25th, 2018 AT 2:20 PM

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