Parallel fam mod FAIL

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05-07-2010, 12:38 PM

reppin651

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Parallel fam mod FAIL

I ran the hot wire from the fan to the a/c fan. However being in a rush i just taped into the hot wire of the a/c fan and left it connected to the car harness. So my problem now is the fan runs constantly and does not turn off even when the keys are out. Did I short something and what do I do to fix it.

05-07-2010, 12:40 PM

Jeff_Ciesielski

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The fan circuit is a switched ground with constant power. Google the "hakuna" fan mod. I think it is on the m.net garage as well.

Last edited by Jeff_Ciesielski; 05-07-2010 at 02:53 PM.

05-07-2010, 02:50 PM

BarbyCar

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Umm....
https://www.miataturbo.net/useful-saved-posts-8/parallel-fan-wiring-instructions-1316/

05-07-2010, 02:58 PM

thagr81 us

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With 'fail' being in all caps I was expecting burnt up engine bay pics...

05-07-2010, 03:16 PM

AbeFM

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I ran a wire from one relay to another, so they both turn on. Very simple, very cheap, worked for....5 years till I got an MS and redid it. You just need like 10 feet of very fine wire (I used one strand from leftover ethernet)