12200411 PCM swap for 1996 to 2000 GMT400 trucks

Aloicious said:

here's a detailed article on the swap, you'll still need the pinout sheet from Lextech though. this is a very beneficial mod, especially from a tuning standpoint.
http://www.gmtruckcentral.com/articles/12200411.html

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Lextech said:

The 12200411 PCM has 2 outputs for electric fans. You can run one or two electric fans. The PCM outputs a "Ground" signal to the control side of the relay/relays.

Jeff

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Trav_69Stang said:

Does one of those outputs control the fan(s) when the a/c is turned on to get airflow across the condenser?

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blazin8556 said:

i sent a pm for the pinout. if anyone else has it can you please send it. i have a 98 z71 with vortec 350. currently has a 4l60e but may wind up with a nv4500. thanks.

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