openinverter forum

my life was boring, stress and drama free, so I decided to start a side hassle and make and sell custom wire harnesses for EV Conversions, I hope to build this post up over time, so please bare with me

I hope to offer Basic unloomed, partially completed, untested Wire Harnesses for various vehicles with a focus on Sync Serial, Lexus, Toyota, etc. In addition eventually I will offer complete, loomed, and pinned, almost ready to run Wire Harness Kits, where all you have to do is buy your Zombie VCU from Damien Maguire over at EVBM.com and screw it in to the enclosure I plan to provide.

Quality - majority if not all wires, cables, plugs and connectors are used stock OEM automotive quality, I do my best to clean them, but they are not perfect shinny nor brand new

We Are Recycling - 97% of the materials come from OEM vehicles and you are helping to keep these things out of land fills

I may be a lot of things but a business man I am not, however I can not give these away for free, and I have pulled a number of harnesses from different vehicles in the local junk yards, and let me tell you it aint no picnic, that is if you are lucky enuff to have a yard that will allow you to yank your own. Often times it takes visits to two or three different vehicles to source what it takes to make one "complete" wire harness as parts are damaged or missing.

Value Added - in addition to sourcing these parts I plan to add some value by labeling all the individual plugs, cables, and even each wire to show you where it will go and where you need to plug it into. I also intend to disclose where I source the parts from to help and give back to the EV community (did I mention I am not a good business man)

Testing - when selling a partially completed harness I have no way of testing it, sure I can test for continuity but that does not ensure I have pinned it correctly, kapish, so buyer beware, however when offering more complete kits I do plan on bench testing them and even road testing them

Harness & Kit Prices

$150 - "Shorty" Lexus GS450h/LS600h Wire Harness, identified by the green 3 foot long resolver cables, ideal for bench testing and better than nothing, but may be too short for vehicle implementations

$250 - Lexus GS450h/LS600h Wire Harness (6 foot long gray resolver cables)

$350 - OEM Lexus GS450h Wire Harness (9 foot long black resolver cables)

All Lexus Wire Harnesses Include:

• Inverter Plug

• MG1 Plug

• MG2 Plug

• Shift Lever Position Sensor Plug

• ECT Solenoid Plug

• Oil Pump Plug

$150 - "Shawty" Lexus GS450h/LS600h Wire Harness (it's one or the other, as they are pinned differently)

Caution: this harness is short, may serve well as a test bench harness, or feel free to extend the wires yourself, or hewk maybe it will reach just fine depending on your component placement, please be aware the three foot long resolver cables are the limiting factor and dictate the distance between the inverter and the transmission


this one is primarily sourced from the 6th Gen (2007-2011) TOYOTA Camry Hybrid (though I end up pulling from at least two vehicles because one of the already short resolver cables is shorter than the other, so I only only keep the longer ones of the two) sourcing the resolver cables is difficult, sourcing the inverter full length harness is literally hell on wheels, here's a fun video of The Greg in the field:





How do I add value? well aside from getting my hands cut and sliced whilst pulling this junk for you in the snow and rain, I also end up repining the plugs for you as the Camry inverter connector splits the resolvers into their own section in a separate plug and the Lexus combines the two like so.

The transmission side MG1 and MG2 plugs are also different and therefor incompatible so I once again install the proper ones for you.

$250 - Lexus GS450h/LS600h Wire Harness (it's one or the other, as they are pinned differently)

the individual wires in the one pictured below have yet to be labeled

$350 - OEM Lexus GS450h Wire Harness pics coming soon

this one is comprised from two different thinned out Lexus OEM harnesses the super hard to find Engine harness ($450 on eBay plus $35 for shipping) and the Transmission harness ($250 on eBay plus $35 for shipping) to make one EV harness. You are unlikely to find the Engine harness for sale as it is the main huge wire harness that passes through the firewall and the entire car must be stripped out to get it out, hence the high price tag.

This is not my listing, I am just showing you what just the Engine harness goes for on eBay.



In this video I show you how I harvest the Transmission harness from a Lexus GS450h in the junkyard.