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Thread: "HELLCAT SWAPPED CAR How can i make fan turn on when the key is on the ON position.

  1. #1
    Tuner in Training
    Join Date
    Apr 2019
    Posts
    10

    Question "HELLCAT SWAPPED CAR How can i make fan turn on when the key is on the ON position.

    I have a hellcat swap and i want my radiator fan to run as soon as i turn the key to the on position.

    Anyone know how to do that? I am using the pcm to send power to the fan. i have the hellcrate harness. Just curious what setting in HPtuners would allow me to do it.

  2. #2
    Advanced Tuner
    Join Date
    Mar 2018
    Location
    Illinois
    Posts
    873
    You could drop all the low speed fan temps to accomplish this. But then the low speed fan will always be on. In hp tuners hit cntrl+N and type fan or go to system/fan.
    fans.JPG

    If you want pin outs go here:
    http://connectors.dcctools.com/home.htm
    For wiring diagrams go here:
    https://www.roswell-nm.gov/1112/Chil...Repair-Library

    BTW there is an OBD2 device sold by zautomotive called the tazer that has a cooldown feature that turns the fan and intercooler during KOEO. Although, it requires the factory instrument cluster to be used.
    https://zautomotive.com/product/tazer/
    Last edited by Homer; 06-23-2019 at 11:42 PM.