So I've searched for answers all through here and cant find anything concrete, I believe that is contributed to varying wiring colors through the years on the Toyota side.
I have an '03 5.3l LM7 with a 4 pin GM alternator that came with that motor originally, going into an '82 2F truck.
The original toyota alternator had a large white wire with ring terminal (this originally went to the lug on the alternator), it the had a green plug with a 10-12ga white wire and a small yellow wire. The large white wire runs to the charge light fuse, the yellow wire I am unsure about.
I always see posts about a yellow black wire at this location as well, this part confuses me.
I'm going to be running new large gauge line from the alt to the starter lug (then to the battery), the old toyota white wire that went on the alt lug I removed at the splice near the batter as it is still tied to the batter but wont be needed since I'm running new from the GM alternator to the battery.
From there I need assistance, the charge light relay circuit is a bit odd but from what I gather the small yellow wire get tapped into the "S" pin on the GM alt plug.
The other white wire that was in the toyota plug I am unsure what to do with!
Pic below for reference, thanks!
I have an '03 5.3l LM7 with a 4 pin GM alternator that came with that motor originally, going into an '82 2F truck.
The original toyota alternator had a large white wire with ring terminal (this originally went to the lug on the alternator), it the had a green plug with a 10-12ga white wire and a small yellow wire. The large white wire runs to the charge light fuse, the yellow wire I am unsure about.
I always see posts about a yellow black wire at this location as well, this part confuses me.
I'm going to be running new large gauge line from the alt to the starter lug (then to the battery), the old toyota white wire that went on the alt lug I removed at the splice near the batter as it is still tied to the batter but wont be needed since I'm running new from the GM alternator to the battery.
From there I need assistance, the charge light relay circuit is a bit odd but from what I gather the small yellow wire get tapped into the "S" pin on the GM alt plug.
The other white wire that was in the toyota plug I am unsure what to do with!
Pic below for reference, thanks!
