For Reference Only: In addition to mating with the Inverter harness on the passenger side via the two Resolver Plugs, the transmission harness mates with it in a second spot on the driver side via a long and narrow fuse block adapter thingie this is just for demonstration purposes, we end up not us...

worth noting is the difference in the two transmission resolver plugs (gray is 8 pins, black on has 10 pins) which mate with the matching set coming from the Inverter, the black one runs to Motor Generator 2 aka MG2 it has two extra pins, those blue/red wires they are for positive power going to the...

so one of the first mysteries that I solved was: How does the transmission harness connect to the Inverter harness? What magical and mysterious black box sits between the two, if any? and once again the Lexus "components" schematic provided minimal help, as they completely neglected to eve...

and here is the star of our show, Mr. Inverter himself

anatomy of the Lexus GS450h Inverter Harness

and yes this one comes with the coveted Inverter plug part number 82821-50640

so once again we turn to the craptacular Lexus wire harness diagram to identify the Inverter Harness aka the Engine Room Main Wire

Note: everything points to the light blue inverter harness

don't get too hung up on the part numbers many different part numbers will work/fit, the difference in part numbers does not only depend on the year of your Lexus but the options on that vehicle like what kinds of headlights it is equipped with, I am not making this stuff up, I spoke to a parts rep ...

with the transmission harness thinned out I quickly realized it take Two To Tango so I went out and paid $300 dollars for a $235 dollar Inverter harness official name is Engine Room Main Wire Part Numbers: 82111-30K62 fits 2008-2009 (this is the used one that I just bought)​ costs $7,144 new ​ 82111...

What's that? Did I make an excruciating boring video about the transmission wire harness? Of course I did!

and here is all that we do need (we don't need that plug in upper left of the pic, I just kept it to keep everything together)

and here's all the crap we don't need from that Engine Wire harnesss

so here are those two Resolver cables separated from the Engine Wire aka transmission harness, this alone to me was worth $250 and you will understand once you attempt to crimp these to the plugs, ha ha

but at the heart of this wire harness are the two complete home runs of the Resolver cables, one per motor this is the transmission end, each plug looks the same (8 pins each) IMG_5603.JPG However on the other end MG2 (black plug) gets two extra pins, these are for positive power leads for the Inver...

on the other side of the transmission lives the Safety Neutral Switch (gray) connector
so in total we get 5 transmission connectors with this harness

the best way to try and identify this transmission harness in crappy pics is to look for this squigly plastic harness section that runs along the driver side of the transmission, it contains 4 plugs 1. MG1 Resolver connector (gray) 2. MG2 Resolver connector (gray) 3. Shift Solenoids connector (gray)...

I made the mistake of looking for the Inverter plug in the low resolution pics of the eBay listing, and you can easily mistake the two ECM Engine Control Module plugs (one is larger than the other) for the Inverter plug

so first I laid it out and then I began to "thin" it out IMG_5568.JPG this is as if you were standing in front of the vehicle looking down on the engine bay IMG_5570.JPG part of this harness is a small completely separate Fuel Injector harness IMG_5592.JPG so here it is again minus that Fu...

I decided to purchase the " Engine Wire " harness which is the technical name for what we call the Transmission Wiring Harness on eBay for $250 bucks, expensive - yes, needed - absolutely! It's the green aka olive one below (I know that schematic/diagram is horrible, but Lexus never breaks...

perfect thank you so much, so all is working as it should, and since my rig is a 1971 and pre dates CAN Bus by a few months, ha ha no need for me to tap that signal Yeah, no CAN in mine either but I'm sending R, N, D via CAN to my Arduino and using the P tap for a custom display that gives me volta...

perfect thank you so much, so all is working as it should, and since my rig is a 1971 and pre dates CAN Bus by a few months, ha ha no need for me to tap that signal

Got my motor spinning today beautifully forward and reverse, and the Ver 2 VCU (not ZombieVerter) recognizes both signals and shows me that on the Menu when I press D, however it never recognizes Park Park is a bit different as the signal goes from the Safety Neutral Switch to the Inverter unlike th...

So a little progress, but not much. Had @paaa over to trade a battery box for some soldering skills and we got both of our ZombieVerters finished. Had some trouble with IC21 & IC22 but got them in the end. IMG_1585.jpg Got the VCU powered up with basic 12V and connected to it fine but no other ...

kevpatts wrote: ↑Tue Sep 21, 2021 6:16 pm Battery disassembled. More work than you think it will be!

IMG_1504.jpg (42.76 KiB) Viewed 7202 times

that looks Wife Approved, love it!

we're not done yet, but we're getting there, had to stop for the night as it started to rain outside and it was getting dark

please keep in mind we are not going for perfection, this is just a stop gap until the right header comes back in stock