I need the charging cable wiring diagram, I bought one without the wall connector.

Is this an Level 1 (120V) or an L2 (240V) EVSE? Sounds like it's an L2 unit if it didn't have a plug on the end. Did you get any sort of instruction manual? Can you post pictures of it?

 

welcome to priuschat, all the best with your little project!

 

It seems like you have the raw J1772 connector and cord like this:

And you're trying to figure how to make a simple 3 prong plug to connect the other end to a standard household electrical outlet?

If that's the case- you cant. You need the control/signal circuit between the J1772 connector and your home electrical supply. That's whats in the "reset box" (along with a GFCI) on the OEM Toyota EVSE set.


SAE J1772 - Wikipedia, the free encyclopedia

And here's the full circuit with the AC source..

 

I don't have the details on what contacts do what. I have looked at some information for the J1772 standard and there is communications between the car and the controller (the box in the charging cable). This is probably the two smaller pins. Voltage levels are used to communicate the charging phase, in part to turn power on and off. There is also a square wave on this low voltage where the ration of on and off communicates the amount of power (Kw) being sent across.

 

i think ny_rob has it right ^ . you need an L1 or L2 box which contains the appropriate circuit board, with 3 wire input from wall plug. if this is correct, the good news is, you might as well get an L2, it's not that expensive.

 

That's right you need the hardware that provides a pilot signal that has to handshake with the onboard car charger
Analogy - no Introduction means no dancing

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I have a Leviton Level 2 charger. The charging cable is about 20' long with three 10 gauge wires and two 12 guage wires. Over kill for a 16a charger. Very bulky and hard to roll up and un-roll for use. I thought I placed my charger in a good position (front wall when pulling in). To make it easier, I started backing my PIP in. Still I wasn't happy. I found and purchased a 25' charging cable with J1772 made by Leviton on Amazon for $99 (same as above). This cable was longer and had the same flexibility as the Toyota factory EVSE (no 10 gauge wiring). I though it would be a easy swap. No directions and different color wiring. Still, I decided to move my Level 2 charger to a preferred location with the intentions of changing to the new charge cable. Once I relocated my charger, and ran the 20" cable, I had a perfect situation. I have the charge cable (secured) running across the top of my garage door and down the wall. Now, I'm within three feet of my PIP, and I reach up, take the J1772 out of a mounting holder and plug in. The original cable length is perfect, the bulky cable is no longer an issue. I sent the new charge cable back for credit, less shipping, and didn't have to hassle with switching it out on the charger for the original.

 

I purchased a 20 foot level 2 extension cord for my 2 plugins several months ago. I got the cord from Tucson EV. Look for the "J1772 Extension cord" on their site. It has worked out very well.
It has male and female ends so it plugs into the existing 18 foot long Leviton charger cord giving me a total reach of about 38 feet from charger to car(s).
The plug that goes into the car is not angled as ergonomically nice as the Leviton plug handle which I find perfect. The cable however is much more flexible than the Leviton. Cost in the $300 range.

 

There's virtually no way for you to use the cable you bought in any meaningful way.
Simplest thing to do would be to sell it at a loss to someone here (or ebay) or return it to Amazon and eat the shipping both ways.

 

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don't give up just yet - follow the link below and you'll see many people have put an EVSE together - all by their self;
open-evse - Open Electric Vehicle Supply Equipment (EVSE) - Google Project Hosting
If a knucklehead like me can follow these directions than anyone can build their own plug. From this link you'll find directions on how to build it in Adobe format