Question about Mazda 626

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Here what is probably a simple question to you experts.......on my car, my relay switch to my radiator's fan went out...now, here's the deal... Radiator Fan has a positive and negative wire. Car battery has a positive and negative side. Toggle switch has a positive and negative side.. as you may have gotten the picture, how should the wiring go, in order for the toggle switch to control the power to the fan, until i can get the relay switch replace? (of course the desired result is to turn the fan on and off, at will)

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  • Master
  • 3,489 Answers

To wire this properly, you want to run a grond to the frame somewhere and simply control the power side with the toggle. You will not hook the negative to any toggle. Make sure the toggle is rated to at least 30amp so you don't burn the switch. If you need anything else, please let me know.

Posted on May 13, 2010

  • 17 more comments 
  • wb_luv_2000 May 13, 2010

    ok, can you talk to me a little more on the elementary side? in order words, like in a wiring path.( example, from the fan, the positive and negative goes where, from the battery and switch, the same thing please)

  • Kori Policy
    Kori Policy May 13, 2010

    Okay. take the negative and attatch it to the hegative side of the battery or to the frame(which ever is easier for you). Take the positive and run one into the car from the battery, hook it to the toggle and then a wire out to the fan. All you need is a 2 prong toggle, but if it is a 3 prong, the power goes to the middle and the wire going to the fan will go to top or bottom(doesn't matter).

  • wb_luv_2000 May 13, 2010

    ok, let me see if i got this.......from what i just read,

    the positive from the battery, goes to the positive of the toggle switch and the negative from the

    toggle switch, goes to the negative of the fan.....



    if this is true, what is to be done to the negative side of the battery and the positive side of the fan?

  • Kori Policy
    Kori Policy May 13, 2010

    No. The negative goes to the battery or frame from the fan. Never to the toggle! The runs from the battery, to the toggle and back out to the positive on the fan. Picture the negative from the fan going directly to the battery. Then you are running a wire from the positive side of the battery to the inside of the car and to the toggle. From the toggle to the positive side of the fan. The switch simply connects the positive side only to turn the fan on.

  • wb_luv_2000 May 13, 2010

    ok, now , let me recap.pls be patient with me..



    BATT (Positive side goes to switch, negative side goes to negative to the fan)

    FAN( Negative side connected to batt negative side, positive side to toggle switch)

    SWITCH( Positive side to batt and to the fan...Negative side OPEN)

  • Kori Policy
    Kori Policy May 13, 2010

    Okay, I see where we are getting lost. I would rather be patient then to have you start a fire so, no problem and take your time. There is no negative side of the toggle. The toggle simply acts as a controlled break in the wire. So really you are only running one wire into the car and one out of the car. The negative is simply going from the fan to the battery. The toggle is the equivilant of taking 2 wires and touching them together to make the connection.

  • wb_luv_2000 May 13, 2010

    actually, that is what i just recapped.



    Batt pos into the car, to the switch pos.

    and then from the switch pos back outside to the fan pos, thus leaving the negative side of the switch, UNTOUCHED..

    THEN the BATT negative side to the fan's negative side....

  • Kori Policy
    Kori Policy May 13, 2010

    You got it! I'll be here if you have anymore questions.

  • wb_luv_2000 May 13, 2010

    i really do appreciate your help.....i'm rather new to this website and i see it can be very helpful..

  • Kori Policy
    Kori Policy May 13, 2010

    Well, I really do appreciate that. I can't personally work on cars or Military operations anymore due to a physical impairment. I love to teach so as long as people are receptive, I'm happy to help.

  • wb_luv_2000 May 13, 2010

    ohhhhhh, one more thing....so it has to be a 30 amp, or more toggle switch, CORRECT?.......so if this is the case, i suppose that on a 2 prong switch, the ON, is pos and the OFF is neg............On a 3 prong switch, the Middle is the pos and either 1 or 3, should be UNTOUCHED.....

  • Kori Policy
    Kori Policy May 13, 2010

    On a 2 prong, just hook the fan side up to one prong and the power(positive) side up to the other. On a 3 prong switch, the power(positive)side will be in the middle and the fan(positive side) will be on either top or bottom. It doesn't matter just as long as you remember which way to flip it when you need the fan on. And again, just take a wire from the negative side of the fan and run it to the negative side of the battery. Yes you will want a switch rated around 30amp.

  • wb_luv_2000 May 13, 2010

    thank you very very much........gotta run now, got work to do. lol lol lol

  • wb_luv_2000 May 14, 2010

    hey, it's me again..i'm having one hell of a problem finding a 30 amp toggle switch...the highest i'm founding is 20 amp. now there's one place that i found that has a 30 amp toggle switch, but it was based on the amt of voltage usage......ok guy, any suggestions or ideals??

  • wb_luv_2000 May 14, 2010

    by the way, the switch i was found, is



    Contact Current Rating:
    30 Amps at 125 Volts ..

  • Kori Policy
    Kori Policy May 14, 2010

    A 20amp switch will work. You weren't planning on using a household switch were you? Just make sure it is for automotive use and you will be fine.

  • wb_luv_2000 May 14, 2010

    oh no, i'lll be using a toggle switch.........so now, does this switch have to also be for automotive use as well??

  • Kori Policy
    Kori Policy May 14, 2010

    The switch should be rated for 12v - 24v.

  • wb_luv_2000 May 15, 2010

    again thanks.......back to the drawing board. lol lol

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