I need some help in wiring up my replacement alternator (generator). When I removed the plug, I used a pair of channel locks and accidentally pulled two of the wires out. Now I am not sure how they go back together. It's a 50/50 guess, but I don't want to guess as I don't know what will happen if I guess wrong. I have access to the TIS website for two days and have downloaded the wiring diagrams, but they aren't making sense.

There are three wires, white, black and yellow. I know where White goes on the connector (1, on the picture) but black and yellow are on 2 & 4. Wiring diagram is showing pink going to alternator but there is no pink in my wiring

Long shot, but can anybody help with this?

 

Hopefully you've already solved this but just in case....

I have a 2003 GS430 and broke the connector as well. The diagram you're showing is a 4 wire and in your description you're talk about 3 wires so not sure.

I would suggest going to the Lexus dealer and ask for a replacement ALT terminal or check on line at lexusparts.com and try to match up the diagrams to what you have. I have the factory Electrical Manual for 2003 and it matched my wiring in my car.

You can also request to purchase a 'pigtail' which is what they call the wires replacements needed if you break them. Just want to see the diagram and it may show you what you need to know. Once I had a part number for the connector I googled it and found items on ebay etc with diagrams (after you google it, you can view ALL or just the pictures videos etc) and then I worked it out from there...

Hope it helps