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Thread: Cant get fans to turn on.

  1. #1
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    Cant get fans to turn on.

    I watched a bunch of YouTube videos but I think I?m missing something. I?m new to all this any help would be great. I cant even figure out how to post my tune file
    Last edited by Leeroy; 06-17-2021 at 09:45 PM.

  2. #2
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    What kind of PCM do you have?
    Can you activate the fans with your VCM Scanner?

  3. #3
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    Quote Originally Posted by kevin87turbot View Post
    What kind of PCM do you have?
    Can you activate the fans with your VCM Scanner?
    I have what I think is called the P01 yes I can use the VCM to turn it on.
    I just notice 1st fan come on at 226 seams a little hot to me. I?ll have to let it run with the VCM scanner to see what coolant temp the ECU is seeing is different the the gage. maybe the gage is reading is not accurate I think it?s overheating but it?s actually not even up to a temperature where the radiator fans will turn on.
    Last edited by Leeroy; 06-17-2021 at 10:31 PM.

  4. #4
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    Quote Originally Posted by Leeroy View Post
    I have what I think is called the P01 yes I can use the VCM to turn it on.
    I just notice 1st fan come on at 226 seams a little hot to me. I?ll have to let it run with the VCM scanner to see what coolant temp the ECU is seeing is different the the gage. maybe the gage is reading is not accurate I think it?s overheating but it?s actually not even up to a temperature where the radiator fans will turn on.
    P01 Fan settings.jpg

    They do get pretty hot with the stock fan settings. Try some settings similar to this...

  5. #5
    what year are you working with?
    If you are working with 2002 under you will need to input 500 for the disable ac pressures and 0 for the enabless.
    Last edited by [email protected]; 06-18-2021 at 10:56 AM.

  6. #6
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    Quote Originally Posted by [email protected] View Post
    what year are you working with?
    If you are working with 2002 under you will need to input 500 for the disable ac pressures and 0 for the enabless.
    Will I still need to do this even if I don?t have AC?

  7. #7
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    Quote Originally Posted by Leeroy View Post
    Will I still need to do this even if I don?t have AC?
    No you won't.

  8. #8
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    Quote Originally Posted by kevin87turbot View Post
    No you won't.
    Just tested it the fans work good just had to lower the temp they turn on.