2001 TLC Alternator Wiring (1 Viewer)

[rockymtnred]

After spending hours trying to find the answer and frying an alternator, I figured I'd make my first post after many years on this forum and ask...

2001 Toyota Land Cruiser

I replaced the alternator. The positive lead is on the side secured by a bolt. The plug is in the rear of the alternator. The plug broke.

I rewired the plug according to a diagram I found on another thread and... well... I fried that alternator. So I'm on round 2 now.

There are 3 wires that come from the truck and are supposed to feed into that plug:
1. Black and Orange
2. Orange and Blue
3. White and Blue

I had them so they fed into the alternator(through the plug) in the aforementioned order from left to right if I am looking at the rear of the alternator.

If I turn the ignition to accessories and put a multimeter on each wire, I get the following readings:

1. Black and Orange- 11.6
2. Orange/(Red?) and Blue- 11.6
3. White and Blue- 11

I also ran a test on the alternator hooked up to the battery only. Positive to the positive lead on the side, negative wired to one of the bolt holes in the alternator as a ground. I then ran the multimeter across each of the leads that the plug is supposed to insert onto(alternator is male end).
From left to right, the readings were:
Left lead - 11.8
Middle Lead- 10.8
Right lead- 0

Does anyone have any advice on wiring this thing?

I've read the 0 lead on the alternator is supposed to be the (L) wire- which I have routed to the black and orange wire but have also seen some people state that L should be the lead with the lower reading....

Happy to hear any advice.

 

[leveeguy]

Colors are
1. B-O Black -Orange
2. R-L Red- Blue
3. W-L White -Blue

Unsure if this helps, could you possibly have wires 1 & 3 in incorrect slots ?

 

[rockymtnred]

View attachment 4001551Colors are
1. B-O Black -Orange
2. R-L Red- Blue
3. W-L White -Blue

Unsure if this helps, could you possibly have wires 1 & 3 in incorrect slots ?

Thanks for the comment!
If this is official for 2001, definitely a possibility....

I can't figure out which order the alternator leads are placed; hence the test direct to the battery. But I saw a couple different posts about which one would be which based on the volts going through each lead. Where is this diagram from?

 

[leveeguy]

Diagram is from my 2001 Land Cruiser EWD