My 14 IS250, was giving an TPMS warning light error, i connected with Techstream and saw that sensor 1 was faulty and decided to replace it, due to the age of the sensors i decided to replace all 4 sensors at once before the other 3 start to give problems. i bought Denso 550-0105 TPMS sensors, looking online i saw how to register the ID on techstream going to the ID registration on utility in the TPMS section, and that's were the problems began. After i enter the ID's ,which i also notice that it does not give a timer countdown i get an initialization error. I tried connecting the TC and CG for 30 secs and still the same issue.

I am using Techstream V.12

Has anyone had this issue before? is there a way to take it out of initialization?

Thanks

 

What cable are you using?

 

i am using the Mini-VCI J2534 OBD2 Cable, i have used the cable to program the keys with the same Techstream and works fine.

 

Never used Tech stream, but Toyota/ Lexus are known to go into a closed loop and not let the TPMS ID's load to the ECU. I don't know what type of error message Tech stream would give you to indicate that though. In general on my TPMS tool it won't let me access the ECU at all.

 

I haven't had any luck programming TPMS with those cables. Ended up taking it to a shop to get mine reprogrammed when I replaced them.

 

Have had no problem loading the TPMS values with my ATEQ Quickset. Use it twice a year, to flip between summer and winter tires/wheels.

 

I had the same error until I got a different cable. I got this one: https://www.vxdiagshop.com/wholesale...i-version.html

My old cable was also a Mini-VCI J2534 OBD2, whicg could do most techstream things, but it couldn't program the tpms.

 

I believe I am having a somewhat similar problem.
I have Techstream V17 and I have also tried V11. Both ways, when I go into the main screen showing all available systems,
several of them have this asterisk next to them indicating they cannot be communicated with.
I am basically trying to reset and update the registered TPMS sensor ID's, but I am not having luck connecting:



I have the firmware 1.4.1 MINI VCI cheap cable. I am seeing the same thing for several other systems also including Immobilizer.
Is the low firmware of the cable the issue?


Robert