E-Fan Setup for 411 PCM

[Booztd 3]

Guys

I've been searching for a few weeks now about how to properly setup the 411 PCM for dual fans @ single speed, with little luck.

After playing around with the tune for several days I'm resorting to this thread.

I have my wiring harness pinned for both fan outputs as follows:

Fan 1 - Pin 41 (blue connector)
Fan 2 - Pin 33 (red connector)

These two leads supply the ground for the coil on my individual relays.

Currently, the #1 fan works as commanded. I've changed the ECT's around and the fan reacts as it should. However, I cannot get fan #2 to come on. I have swapped the fans to opposing relays and the other fan will work, so I know this is not a mechanical issue, nor a mix-up on fan #2's wiring.

I have the following setup in HPT









Obviously the ECT setting for Fan #2 is not optimal, I just had it set low for testing purposes (not having to wait till engine gets hot to trigger it on)

If anyone can shed some light on something I might be missing thats preventing Fan #2 from being triggered I'd greatly appreciate it.

[thebeewantsboost]

on my 2001 s10 with the 0411 computer. the pin is not 41 its 42. so check to see if you are getting a ground signal when manually turning on the fans through the scanner. if thats correct, do you hear the a/c clicking repeatedly? if you do its because some of your settings are telling it to turn on and turn off at the same parameter ie: enable/disable by a/c pressure both at 500psi

[vltrb-0]

on my 2001 s10 with the 0411 computer. the pin is not 41 its 42. so check to see if you are getting a ground signal when manually turning on the fans through the scanner. if thats correct, do you hear the a/c clicking repeatedly? if you do its because some of your settings are telling it to turn on and turn off at the same parameter ie: enable/disable by a/c pressure both at 500psi

i concur pin 42

as said log the status bit post the log

i had a very similar issue, post the log and we'll go from there

[Booztd 3]

Pin 41/42 was a typo

My Fan #1 is setup on Pin 42 (Blue Connector (Green Wire) That fan works as it should

[thebeewantsboost]

check to see if it's sending a ground when using the scanner, i think fan 2 is, "fan high"

[Lextech]

I think you have Fan 1 and 2 bassackwards.

Jeff