Notices
GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

GS450h inverter exchange

Thread Tools
 
Search this Thread
 
Old Dec 24, 2019 | 08:42 PM
  #1  
Kiwidoors's Avatar
Kiwidoors
Thread Starter
Driver School Candidate
 
Joined: Jun 2018
Posts: 8
Likes: 3
From: nz
Default GS450h inverter exchange

2009 GS 450H Right hand drive. Inverter G9200-30051 had a meltdown with exploded chips inside. Bought an inverter from the US and it is setup back to front (mirror Image). Turned it around to test and there are NO fault codes, but it will not start the engine or move. Hybrid battery is at half full. I have never driven this car as it was purchased with the blown inverter. The battery is quite new. The info power display shows battery power going to the wheels then also power from the motor, but nothing is going, engine not running and no electric thrust.
Is there a difference between LHD and RHD inverters in the plug setup. The plugs from the vehicle to the inverter can only fit in the 1 place as they all differ in shape. the 2 orange cables have a similar looking connector on the end but there is a tab on each in a different location making it impossible to mix up. The only place could be the input side from the traction battery. I have not reversed them. Is there a diagram showing where each wire goes to from the inverter in both RHD and LHD?
My car is still parked in the drive unusable.

Last edited by Kiwidoors; Jan 10, 2020 at 02:23 AM.
Reply
Old Dec 25, 2019 | 04:14 PM
  #2  
Lwerewolf's Avatar
Lwerewolf
Racer
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2019
Posts: 1,349
Likes: 264
From: Sofia
Default

Plenty of RHD inverters from Japan & the UK are available - the LHD one is a bit rare. No clue about the connector layouts.

Similar case to yours - RHD in a LHD car but still:
https://priuschat.com/threads/invert...gs450h.197632/
Reply
Old Jan 12, 2020 | 09:42 PM
  #3  
Kiwidoors's Avatar
Kiwidoors
Thread Starter
Driver School Candidate
 
Joined: Jun 2018
Posts: 8
Likes: 3
From: nz
Default

Thanks for this info. I have been in touch with Lexus New Zealand and they tell me that there is only 1 Inverter Converter suitable for my car, G9200-30170 which is a supercede to the original G900-30051. I will ask for the cost tomorrow. I recon it will be more than the car cost me. Where in Japan can we source these parts? I will look into this too.
Reply
Old Jan 15, 2020 | 04:12 PM
  #4  
Kiwidoors's Avatar
Kiwidoors
Thread Starter
Driver School Candidate
 
Joined: Jun 2018
Posts: 8
Likes: 3
From: nz
Default

Supply only in New Zealand $8005.53.
Reply
Old Jan 16, 2020 | 06:24 AM
  #5  
Lwerewolf's Avatar
Lwerewolf
Racer
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2019
Posts: 1,349
Likes: 264
From: Sofia
Default

Ehh… no, just no.

I got my LHD inverter for ~250eur (a bit lucky), highest I'd seen was ~1000eur. RHD inverters are consistently cheaper and more plentiful. I don't think anybody's ever purchased a new inverter for any Toyota hybrid... doesn't matter if it's a prius, camry, gs, etc.

I also somehow doubt that previous inverter versions won't be compatible... has the hybrid ECU & the wiring harness changed? I'm pretty damn sure that the AC/"gearbox"/HV battery have not changed.

Whatever you decide to do, keep us posted. I don't know what the situation is in NZ with regards to shipping parts from overseas, but again... plenty of RHD inverters from UK cars. G9200-30030 was used before your part, maybe it'll work here as well. I can't find what G9200-30170 is supposed to be - I recall there being multiple numbers written on the inverter assembly, will check my old one to confirm.
Reply
Old Jan 17, 2020 | 12:25 AM
  #6  
Kiwidoors's Avatar
Kiwidoors
Thread Starter
Driver School Candidate
 
Joined: Jun 2018
Posts: 8
Likes: 3
From: nz
Default

Hi,
The G9200-30051 was superceded by the G9200-30170 in the GS450H as the letter from Toyota New Zealand shows.
Has the power output of the GS450H changed since it first came out? Why so many Inverter variants? Is there a compatibility list somewhere? If not someone should start one. I did purchase one from the US and it was setup backwards, I just made it fit, plugged it in and it says everything is ready, put foot on gas and it shows power flow from the battery then from the engine but all that is a
lie because I just feel a microscopic forward movement and nothing else.

G9200-0040 in RHD


Letter from Toyota.Dear Michael

Thank you for your further contact to Toyota New Zealand regarding inverters for your 2009 Lexus GS450H, registration EYG---.

Toyota New Zealand do not have the information relating to why the previous inverter was superseded. Superseded can mean many things included but exclusive to:

  • Change of Supplier
  • Change of Manufacturer
  • Part may have had an issue
The new part (G9200-30170) will go into vehicles that originally had G9200-30051, only if there is an issue with the original part.

All genuine Lexus parts and accessories are distributed and sold through our Authorised Lexus Network, therefore we recommend you contact the Parts Department at your local Lexus Store who will be able to advise you on availability and pricing for an inverter.

Can you please be more specific in relation to what build information you are after?

Regarding your request for your service/repair history, the vehicle was regularly serviced between 2009 and 2013 having the 30k,45k,60k,75k,90k and 105,000km completed. In June 2015, the Fuel Pressure Sensor recall was completed, and in 2011, the Valve Spring recall was completed. Lexus New Zealand holds no further records on file for your Lexus since June 2015.

Once again, thank you for your enquiry. Please do not hesitate to contact us if we can be of any further assistance.




Kind regards



Kelsey Charles



Customer Services Representative, Customer Dialogue Centre | Toyota New Zealand Limited





T 0800 869 682 | customercare@toyota.co.nz | toyota.co.nz
Reply
Old Jan 17, 2020 | 12:36 AM
  #7  
Kiwidoors's Avatar
Kiwidoors
Thread Starter
Driver School Candidate
 
Joined: Jun 2018
Posts: 8
Likes: 3
From: nz
Default


G9200-30051 with deep fried chips
Reply
Old Jan 17, 2020 | 04:48 AM
  #8  
Lwerewolf's Avatar
Lwerewolf
Racer
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2019
Posts: 1,349
Likes: 264
From: Sofia
Default

Most likely a revision. All Toyota hybrid components are made by Aisin and Denso... i.e. Toyota themselves. The rx400h and 3rd gen Prius have had inverter recalls, they probably improved the GS inverters as well.

There have been no power output changes to the GS hybrids, to my knowledge. If you see different acceleration and top speed figures - the EU version comes with a 3.266 diff, the NA/JDM version comes with a 3.769 diff.

Check this:
https://priuschat.com/threads/invert...gs450h.197632/
RHD inverter in a LHD car... same symptoms as you.

Another thing of note - 30040 is the earliest LHD inverter, 30061 is the "equivalent" to 30051... might be related.

You might want to browse the russian lexus club (club-lexus.ru) and other russian sites (drom, etc) - I've seen plenty cases of inverter failures there, maybe something will pop up. Still surprised that you're having trouble getting a RHD inverter... I was looking for a LHD here for a week in Europe until one accidentally popped up, RHD is available everywhere
Reply
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks

 Michael S. Palmer
story-1

Top 10 Most Confusing Things Lexus Has Ever Done!

 Joe Kucinski
story-2

2026 Lexus ES Review: Lexus Re-Embraces Founding Principles

 Michael S. Palmer
story-3

10 Lexus Bargains That are Cheaper Than a New Toyota RAV4

 Joe Kucinski
story-4

8 Weirdest Things Lexus Has Ever Built

 Verdad Gallardo
story-5

10 Lexus Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-6

8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

 Michael S. Palmer
story-7

10 Best Lexus Models No One Remembers

 Joe Kucinski
story-8

TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

 Michael S. Palmer
story-9

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
Old Jan 26, 2020 | 08:32 PM
  #9  
Kiwidoors's Avatar
Kiwidoors
Thread Starter
Driver School Candidate
 
Joined: Jun 2018
Posts: 8
Likes: 3
From: nz
Default

Hi,
I got a G9200-30030 inverter from Lithuania for 295Euro delivered to New Zealand. Plugged the sucker in and .
All is good in the world.
Know this now.
G9200-30030 comes before
G9200-30051 follows G9200-30030
G9200-30170 follows G9200-30051
All 3 will work for a RHD 2009 GS450h.
Total GS450h Project cost to date....
Car NZ$ 1500.00
Toyota attempt battery charge (fail) NZ$ 320.00
Buy 2 Chargers and Power supply NZ$ 500.00
Buy wrong LHD inverter NZ$ 950.00
Buy right inverter NZ$ 290.00
Total NZ$ 3560.00

Its running with no faults

Time will tell.
Thank you for your very helpful input.
Live long and prosper
Reply
Old Jan 27, 2020 | 07:42 AM
  #10  
Lwerewolf's Avatar
Lwerewolf
Racer
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2019
Posts: 1,349
Likes: 264
From: Sofia
Default

Go drive that sucka and watch your speed
Do make sure that you've bled the inverter properly. There's a bleed terminal at the inverter radiator (the one in front and at the top, terminal/outlet is at the front, left side) - you're supposed to attach a clear hose to the outlet (which is pointed downwards for whatever reason, and it's not on top of the radiator... weird as hell), loosen the plug with a hex key, remove radiator cap, fill until both are level (communicating vessels, on that note - make sure the car is parked at a level spot), close the radiator bleed plug, detatch hoses/etc, bleed system (techstream, running the electric water pump on(3min) and off(1min) and topping up... the pump also starts running about 20sec after the car enters "ready" mode). LHD cars also have a bleeder terminal near the inverter and the radiator is on the other side of the car (more accurately, the inverter has been moved over)... the relocation of components on LHD gs450h's must've been an afterthought :P

The 4th (well, 2nd hybrid) gen GS450h has a separate inverter reservoir which you don't really have to bleed (like all prius models, the LS, RX, camry, just about everything)... I'm wondering whether to attempt converting mine.
Reply
Old Nov 13, 2022 | 05:32 AM
  #11  
petershen's Avatar
petershen
Pit Crew
 
Joined: Apr 2013
Posts: 174
Likes: 66
From: Singapore
Default

Originally Posted by Lwerewolf
Go drive that sucka and watch your speed
Do make sure that you've bled the inverter properly. There's a bleed terminal at the inverter radiator (the one in front and at the top, terminal/outlet is at the front, left side) - you're supposed to attach a clear hose to the outlet (which is pointed downwards for whatever reason, and it's not on top of the radiator... weird as hell), loosen the plug with a hex key, remove radiator cap, fill until both are level (communicating vessels, on that note - make sure the car is parked at a level spot), close the radiator bleed plug, detatch hoses/etc, bleed system (techstream, running the electric water pump on(3min) and off(1min) and topping up... the pump also starts running about 20sec after the car enters "ready" mode). LHD cars also have a bleeder terminal near the inverter and the radiator is on the other side of the car (more accurately, the inverter has been moved over)... the relocation of components on LHD gs450h's must've been an afterthought :P

The 4th (well, 2nd hybrid) gen GS450h has a separate inverter reservoir which you don't really have to bleed (like all prius models, the LS, RX, camry, just about everything)... I'm wondering whether to attempt converting mine.
​​​​​​
I'm quite interested to convert to the 4GS reservoir, but I noticed the 4GS has a separate radiator for the inverter coolant circuit... I'll do some measurements
If I'm reading this right, if we convert to the 4GS method, it is completely separate coolant loop not shared with the main engine loop?
Reply
Old Nov 13, 2022 | 11:18 AM
  #12  
Lwerewolf's Avatar
Lwerewolf
Racer
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2019
Posts: 1,349
Likes: 264
From: Sofia
Default

IMO not worth it. The issue is the IPM itself (degrades over time, google "IGBT solder layer degradation"). Fixed from the LS600 onwards (incl. 4th gen gs450h, the rx450h, is/gs/rc300h, NOT including ct200h/prius3).
Reply
Old Nov 13, 2022 | 03:21 PM
  #13  
petershen's Avatar
petershen
Pit Crew
 
Joined: Apr 2013
Posts: 174
Likes: 66
From: Singapore
Default

Originally Posted by Lwerewolf
IMO not worth it. The issue is the IPM itself (degrades over time, google "IGBT solder layer degradation"). Fixed from the LS600 onwards (incl. 4th gen gs450h, the rx450h, is/gs/rc300h, NOT including ct200h/prius3).
Ok I get it now... But the self bleeding reservoir is a nice thing...

Did you manage to try the 600h inverter? I saw a few RHD ones for sale on Yahoo auctions Japan
Reply
Old Nov 14, 2022 | 02:11 PM
  #14  
Lwerewolf's Avatar
Lwerewolf
Racer
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2019
Posts: 1,349
Likes: 264
From: Sofia
Default

Haven't done a thing with it, unlikely to be this year.
Reply
Old Nov 15, 2022 | 05:08 AM
  #15  
petershen's Avatar
petershen
Pit Crew
 
Joined: Apr 2013
Posts: 174
Likes: 66
From: Singapore
Default

@Lwerewolf I just read through your entire thread on openinverters.org... very interesting!

I don't have time to attempt this now, but it's definitely on my list of things to do

btw what are you using to measure inverter temps? Hybrid Assistant?
Reply



All times are GMT -7. The time now is 03:40 PM.

story-0
2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks

Slideshow: the 2026 IS 350 isn't all that new, and that's why we love it!

By Michael S. Palmer | 2026-06-04 14:35:23


VIEW MORE
story-1
Top 10 Most Confusing Things Lexus Has Ever Done!

Slideshow: 10 most confusing things Lexus has ever done.

By Joe Kucinski | 2026-06-04 09:40:55


VIEW MORE
story-2
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles

Slideshow: Our First-Drive Review of the 2026 Lexus ES!

By Michael S. Palmer | 2026-05-29 20:30:16


VIEW MORE
story-3
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4

Slideshow: 10 Lexus bargain that are cheaper than a new Toyota.

By Joe Kucinski | 2026-05-20 10:28:20


VIEW MORE
story-4
8 Weirdest Things Lexus Has Ever Built

Slideshow: From hoverboards to luxury yachts, these are the strangest projects Lexus has ever attached its badge to.

By Verdad Gallardo | 2026-05-16 11:34:36


VIEW MORE
story-5
10 Lexus Designs That Have Aged Like Fine Wine

Slideshow: Some luxury cars chase trends, but these Lexus models look better now than they did when they first rolled into showrooms.

By Verdad Gallardo | 2026-05-06 17:58:29


VIEW MORE
story-6
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

Slideshow: How to Get the Best Fuel Economy with a Hybrid and Plug-In Hybrid!

By Michael S. Palmer | 2026-05-05 20:54:44


VIEW MORE
story-7
10 Best Lexus Models No One Remembers

Slideshow: 10 best Lexus models no one remembers.

By Joe Kucinski | 2026-05-05 17:33:28


VIEW MORE
story-8
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-9
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE