Hey guys. I'm new here from Latvia. Hope I will find all info what I need .

Any one has info about OBD2 protocol for GS300 99' ?
So i could find tester/reader for purchase.
maybe you have something to recomend?
Or the truth is i can't read faults with any, cheap reader with PC ?

 

I use cheapest ELM327 bluetooth version with Android phone and Torque Pro app, you can also use Torque free version.
For professional grade, go Amazon and you might find one with TPMS functions so you can add TPMS sensors.

 

I also bought the ELM327 but the WiFi version for my iPhone. I use the OBD Fusion app

 

I got the module but it didn't connect to ECU.
Maybe anyone have wiring diagram ECU to OBD2 ?

 

Just search on Ebaymotors "mini vci Toyota Lexus". Best $18 I spent but the initial set up a first can be tricky. Bi-directional tests, body codes, abs codes, live data plus being able to customize some factory settings are some great features it has for Toyota, Lexus and Scion vehicles. It does have a generic OBD2 reader also.

 

Ok, but there is no guarantee that i have right wiring. Looks like previous owner have done something in obd2.
Can't find any wiring scheme from GS ECU to obd2 for GS.

 

Any have something ?