Wiring Altima fans, a write-up

[matt4pl]

i wanted stock funcionality, where as most of the installs ive read about have the fans wired to turn on high with the car, which wastes power, shortens the life span of the fans, etc

this would make a nice sticky maybe?

now i have a diagram to post up of exactly what i did

here's the stock diagram, taken from the FSM i believe ( used the chiltons, its simpler, also, my diagram is based off the chiltons)



and this is the modified one



i tapped two 30A relays, one each into the stock relays, to control the power to the 2nd fan. i ran power from the terminal inside the fuse box in the engine bay to those relays, then out to the 2nd fan





then i ran the two new power wires out to the 2nd fan, made a notch in one of the covers for the stock harness, put the wires through there



I ran the ground wires to the battery but it's not neccessary, since you can ground them to the chassis anywhere or in my case, run them to one of the aftermarket ground wire connections on the motor

1st fan gets plugged into the stock plug



2nd fan gets wired to the two newly installed relays, the green wires are the power wires i believe



you have to pop out the stock relays, which is kidna a PITA, but its all fairly simple

Thanks to my buddy Paul (adikt on the forums) for figuring out the wiring for this, and helping with the wiring, as well as Konrad (shift knob, not on NICO i think) for pics and arguing about this