2G: Radiator fans will not turn on.

Funfettie · 06-04-2012, 12:36 PM

I cant get my fans to turn on at all. the car is a 98 GSX, just swapped in a new radiator and mishimoto fan shroud, followed this wiring scematic from luv2rallye

Passenger side (radiator) fan wires on harness side of connector are:
lo positive (+12V) = white/black (white with black stripe)
lo negative (goes to ground) = black
hi positive (+12V) = white/blue
hi negative (goes to ground on M/T, switched on/off to ground by the 5th radiator fan relay LO2 on A/T) = blue/green

Driver side (A/C) fan wires on harness side of connector are:
lo positive (+12V) = blue
lo negative (goes to ground) = blue/black
hi positive (+12V) = blue/white
hi negative (goes to ground) = black

nothing Connected the fans directly to the battery, and they work. when i turn the fans on with DSMlink, i can hear the relay click, or turn on. what could be wrong?? no fuses are blown, everything looks good? what should i do? everything worked fine with the stock fans, AC button is on so the driver side fan should work, but nope.

thanks!
Tanner

garrettjames70 · 06-04-2012, 03:21 PM

My advice would be to eliminate the factory wiring all together. Run a relay to both fans and a power lead to the battery. I can send you a diagram of how to do it if you are interested. I had problems with my 96 overheating due to the humidity in MI during the summer and the only real fix was to keep the fans on all the time. I have never had issues with the battery being drained from this.