Alwhite00

iTrader: (1)

I have a 4 pin alternator from a 2000 or so chevy truck. What do i need to do to get it to charge? I obviously have the big wire from the batt to the main lug but not sure where to hook up the wire to energize it to start charging. A diagram would be great if someone has one. I think I need a diode??

76larkman

look over Lt1Swap.com, I believe the pcm energizes the altenator.

Alwhite00

iTrader: (1)

I do have the wire from the pcm but do not know what pin it goes on or if I need a diode.

alowerlevel

iTrader: (1)

The Wire from C2 (red) pin 15 on the pcm should go to pin B on the Alt, no diode

Alwhite00

iTrader: (1)

My alternator has P L F S on the connector - Any ideas?