Manual Cooling Fan Switches

[Starter986]

Rick... Pipe... thank you for the very clarity I needed. I was overthinking it. I'm no electrical wizard.

Quad... thank you for your help!!

Cheers!

[Jgkram]

Piper was spot on in his assessment. The hardest part of this modification was crawling in the footwell to hook things up to the relay panel. I must admit that I really wanted to make my modification similar to Rick's as his is more elegant but just wasn't up to it at the time and I took the easy way out. However, I have been very pleased with this modification and have used it often during stop and go traffic in the summer months. I haven't used the engine cooling fan nearly as much so that one could be left off but while your doing the mod, why not.

[Starter986]

I ran a wire from pin 85 to ground... and the high-speed fan kicked on (only tested one side).

Just purchased standard round rocker switch... but am thinking that even with the 5 prongs on the back of part #986.613.134.00 (Porsche Boxster Lock Switch Black) I could connect to two of the prongs and achieve the same result, correct? Wire to ground... wire to pin #85... abandon the other three prongs.

Yes? No?

That Porsche Boxster Lock Switch Black would look better than the rocker switch.

Thanks!

[piper6909]

Originally Posted by Starter986

I ran a wire from pin 85 to ground... and the high-speed fan kicked on (only tested one side).

Just purchased standard round rocker switch... but am thinking that even with the 5 prongs on the back of part #986.613.134.00 (Porsche Boxster Lock Switch Black) I could connect to two of the prongs and achieve the same result, correct? Wire to ground... wire to pin #85... abandon the other three prongs.

Yes? No?

That Porsche Boxster Lock Switch Black would look better than the rocker switch.

Thanks!

Those switches won't work because they're momentary switches. I.e. they don't stay closed when you pull your finger off them. An additional relay needs to be added to get those to work.

[Starter986]

Originally Posted by piper6909

Those switches won't work because they're momentary switches. I.e. they don't stay closed when you pull your finger off them. An additional relay needs to be added to get those to work.

Thanks, Pipe.

[Jgkram]

If you want to use those switches then follow Rick's instructions for adding his relay. I think I still have some of the same switches I used and if I can find them you are more than welcome to them. I used a progressive drill bit to drill the holes in the batwing.

[Starter986]

Thanks for the offer Jgkram. I appreciate it. I'll pass for now... but will revisit that addition when I get tired of the non-stock rocker switch. That said...

I'm entertaining adding a manual switch to the engine compartment fan. Entertaining meaning is already I've cut and prepared the wires. All I need is to pick up another, matching, switch.... with the exception of running the one, singular, wire from relay to switch.

I'm assuming I'm, via wire and switch, jumping pin #85 of the #8 relay in the frunk... the engine comnpartment fan blower relay. If affirmative... it's the same setup as the radiator fan switch with the exception of one relay vs. two. Now...

That wire running from the #8 relay in the trunk up to behind the center dash console. If anyone has the/ANY method, tips, or tricks to run that wire in the most expeditious manner possible... greatly I would appreciate them.

Jgkram... I like the buttons in the batwing. I removed my wing... examined it... saw the opportunity for some Dremling... and decided against it for the time being. The circuit is so simple that I could remove it in 30 seconds... when I go the wing route. However, I know I will be "entertaining" some cutting in the near future.

I didn't want to mount the switch where it would look terrible out of place. I settled on snuggling it into the side of the cubby (for owner manual) under the steering column. When I asembled the wires and end connecters I heat shrinked everything so you see no silver prongs (even heat shrunk the unused prong). The two wires from the switch I then encased in the round accordian looking sheath hiding thr wires up to under the dash. Looks clean... and doesn't attract "ricer" attention. Until I'm prepared to cut into the batwing the other, engine compartment fan switch, I'll position at the other end of the cubby.

Thanks to everyone who pointed me in the right diorection on this most-easy mod.

Now... about running that wire fron the trunk... past the engine bay... into the cabin... and to behind the center dash console...

Thank you.