This all from the blog: OBD2 vehicle diagnostics

 

Do you need buy Ktag and Kess together?

 

KESS V2 is a ECU programming tool that is perfect for OBD use, while KTag is perfect for Jtag, BDM and all the Boot application (tricore and ST10).

 

With KESS V2 you programming directly through the OBD port of the vehicle, while with Ktag you need to take apart the ECU and open it, after you can make the read/write operation.

 

Many ECU has the advantage that can be read and write from OBD port (so KESS V2 is perfect), but there are lot ECU that need to disassemble from the car and open and this is the case for all the ECU that need to be programmed with Jtag, BDM and Boot protocols, so KTAG is needed.

 

 

Should you buy the newest ECU tuning kit: Kess 5.017+Ktag 7.020?

 

KTAG firmware 7.020:

works better, faster and more stable than old versions

1. adds 100+ ECU types & supports new car models e.g. Toyota 76FXXX, PSA 17.4.4, Ford E83, VW 17.5.5 (1766), Mercedes-Benz 276 ECU, Toyota 76F, etc.

2. more languages available English, Italian, Portuguese, French, Deutsch, Spanish)

3. better wiring description (in words not pictures).

 

Kess v2 firmware 5.017:

Compared to KESS V4.036, the KESS 5.017 has been improved a lot:

1. 100% working
2. No tokens limited
3. with original database
4. Windows 7 & Windows 8 supporting, not only Windows XP
5. supports more cars & bikes & trucks unlimited tokens, fully activated

So, with Ktag v7.020 + Kess V2 v5.017, you can read and write ECU without token limitation for OBD, Jtag, BDM and Boot use for the new models and protocols. But it cannot be used for Tricore; you need go to MPPS V21 cables.

 

Article address:  http://obd2-diag.blogspot.com/2017/07/ktag-7020-in-uk.html