This is kind of an old topic, but I've searched a ton and can't find a solution...or even a very recent thread.
Is it possible to have an 99-02 (specifically a 2002) ecm command the low speed fan on when the ac compressor is on? Not using the ac clutch wire.
I have 05+ truck fans installed and wired into a 2002 suburban using an ls1fans harness into pins 42 and 33 in the pcm. What is required to get the fans to come on with the ac when the vehicle is at operating temp? I have had a couple tuners tell me they can do it... But I would like to do it myself.
Thanks for any input!!