bladest

hi, all,can someone tell me what is the best lexus gs 4th generation scan tool?
Exept from the dealership software and hardware for diagnostic advanced what after market one you can reccomend?

asciarra21

Hi there, I use the tech stream like the dealer does.
I bought it on eBay for like $50.
it’s basically an adapter that goes from the OBDII to your laptop usb.
You install the software it comes with and that’s it.

I was able to make different changes like turn on or off the DRL, and monitor the transmission temp while doing a level check.
And of course read and clear codes.

Hope this helps.

bladest

hi can you provide picture of your tool, and model exactly, also in order to use toyota lexus tech stream,dont you need subscription for their online service or something ? Can you clarify please?

Are you sure about your techscream i see on ebay prices range from 2000$ for used and up.....
i think you need some subscription.... at least some of them writes with 12month subscription.?

6speediroc

I use a Bluetooth reader with the Torque pro app on my phone:
I also use the 'ebay' Techstream if I need to reprogram TPMS or see data the Torque Pro app can't get: https://www.clublexus.com/forums/gs-...l#post10745116

asciarra21

This runs on your laptop with the software provided and connects via the cable.
It is recommended to not update or connect online while using this tool.
For me it works perfect for what I need it for.

bladest

is this chinese stuff , same level as dealer diagnostic for lexus gs 2014 year hybrid ?
Can it at least diagnose fully if the car engine , transmission or battery have some issues?
Full dealer scan diagnostic not repair of the error codes?

peasodos

iTrader: (1)

It's the full dealer software(Toyota Techstream), no subscriptions. Most electronics or electrical components are made in China, like your cellphone, the OBDII to USB cable is no different. You can do all the same diagnostics the dealer can do. This was one of the first things I purchased when I bought my GS several years ago. I have a 2013 GS 450h.

asciarra21

It most likely is Chinese stuff.
But like I mentioned before, what I need it for it works just fine.
The absolute main reason I bought it for, was to monitor the transmission temp when I am adjusting the fluid level.

Hope this helps and good luck with your search.

Also to Peasodos’ point, it is the same software that the dealer uses. But one will have to understand what they are looking at/for in order to fully utilize the equipment.

bladest

So it can scan fully the car - the reason i am asking is since the nearest non dealership is in different country it will be much more convinient for me to have full dealer scan at decent price
can this tool have combined with dr prius or not?

peasodos

iTrader: (1)

The Cable is Chinese, the Software is the original Toyota Techstream. I bought the cable for about $20 and torrented the latest version of Techstream. The older versions are exactly the same, new one just adds compatibility for the latest years for Toyota/Scion/Lexus vehicles.

peasodos

iTrader: (1)

Yes. You don't need any Dr. Prius garbage Toyota Techstream does everything that can do, plus much more since it's the dealer diagnostic software.

bladest

Is there specific version of the cable and firmware which i should look since in europe i found this cable with red marks?
Firmware V 2.0.4 is this good or too low?
https://i.ebayimg.com/images/g/G9UAA...Gp/s-l1600.png cable look like that.

Is there a option to see how much life left on the hybrid battery / or cells life or something with tech stream?

peasodos

iTrader: (1)

Yeah the color of the cable doesn't matter, they are all basically the same. They all come with the firmware on the disk.

asciarra21

Peasodos, I haven’t tried this on my 2019 GS4, but it has worked on every other Toyota, Scion and Lexus I have tried it on.

Do you mind me asking where you got the latest version of the tech stream software?

Thank you

peasodos

iTrader: (1)

I googled it and found it on a random site, don't remember, If you also search techstream on eBay most sellers have the latest version or close too it.