Mike454SS

iTrader: (4)

I'm trying to repair a 2002 8.1 truck wiring harness. I am 99% sure the alternator L terminal connects to PCM red 15. Can anyone tell me what PCM pin the alternator F-Terminal connects to?

Is it the same for a 5.3/6.0 truck as well?

xx_ED_xx

iTrader: (17)

I can when i get home. got all data access

Mike454SS

iTrader: (4)

Pretty sure I figured it out on my own, but if you wouldn't mind verifying that I'm correct, I would REALLY appreciate it. The alternator F terminal, which should be the grey wire from the alternator, goes to PCM C2 pin 52 (red 52) and the L terminal, which should be the brown wire, goes to PCM C2 15 (red 15).

The wiring diagrams I found for a 2002 5.3 liter Yukon are the same as the ones I found for a 2002 8.1 liter 2500HD.

1Bear

iTrader: (1)

You've got it. Brown wire to Red (C2) 15 and Gray wire to Red (C2) 52.
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Mike454SS

iTrader: (4)

Sweet, thank you.

Mike454SS

iTrader: (4)

So I guess I can just run F-Body code and not worry about the F terminal...alternator will work just like it does in an F-Body with just the L terminal hooked up.