0411 "Fan 3 option" for a trans cooler fan??
Thread Starter
TECH Enthusiast
iTrader: (1)
Joined: Jul 2010
Posts: 554
Likes: 0
From: CroSSby, TexaSS
0411 "Fan 3 option" for a trans cooler fan?? Anyone ever done this before? I know in VCM Scanner my PCM's OS shows a Fan 3 option.. I'm guessing you can enable this and use one of the PCM's pinouts to control it? instead of running the fan off a manual switch..
What I'm trying to do is turn off or turn on the fan via MPH OR Temp. purely for in town driving purposes only. On the freeway the fan would shut off automatically based on speed or temp drop.
I would use a temperature based probe and relay but the fins on my B&M trans cooler do not allow for that.
What I'm trying to do is turn off or turn on the fan via MPH OR Temp. purely for in town driving purposes only. On the freeway the fan would shut off automatically based on speed or temp drop.
I would use a temperature based probe and relay but the fins on my B&M trans cooler do not allow for that.
Last edited by greenvortec97; Jul 20, 2013 at 11:57 AM.
Thread Starter
TECH Enthusiast
iTrader: (1)
Joined: Jul 2010
Posts: 554
Likes: 0
From: CroSSby, TexaSS
Correct.....but he could also use the fan relay's 12v+ output to additionally act as the trans cooler relay's 12v+ "switched" power feed to energize the cooler relay's coil. There are a few ways to do it....but by not "tying in" to the PCM's floating-ground output, there will be less chance of over-burdening the PCM itself, and having an unhappy result.
