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Here are the connections on the one I made (tested on a 02 Avalanche PCM)


PCM connections
Pin 1 to ground
Pin 15 to DLC pin 9
Pin 19 to 12v switched
Pin 20 to 12v
Pin 60 to ground
Pin 59...

Nice.....

Can you post a pic of what you have now?

Thank you HPTuners :cheers:

Here you go.

Pins Function

58 Data
19 Switched 12v
20, 61 12v
21, 60 Ground

What make and model? I will see if I have the pin out for it.

How old? Mine is for a 2002.

All my parts came form a junk yard. I used the directions from the link I posted to make it.

got a link?

For power I have an old computer power supply that a mounted a cig lighter into.

here is where I go my info from

http://www.groomlakelabs.com/index.php?q=gallery&g2_itemId=2782

and a pic of mine....

E-mail sent :D

When I installed Efans from a 2005 Tahoe into my 2002 Avalanche I wired the fans to turn on hi speed (fans connected in parallel) from the PCM (2002 only has one pin for Efans) I used a separate...

It was -44 yesterday :eek: I will be in Wasilla/Anchorage next weekend (the 20th)

Where in AK? I am in Fairbanks :hi:

MY truck
2002 Avalanche Z71
5.3L
4L60E +vette and 4th gear servos +longer pin
3.42
Gibson Dual Sport
K&N FIPK II
2005 Tahoe electric cooling fans
101,xxx