FAQs about KESS V2 V2.15 OBD2 Tuning Kit

KESS V2 V2.15 is a very popular ECU tool and is probably the most advanced tool available today. My customers feedback some problems. Here are the FAQs about below:


Frequently Asked Questions when using KESS V2

Q: I am wondering now what is the solution to unlock your ECU?

What to do to avoid your ECU become locked?

A: EDC15/16 can unlock by using KESS V2 V2.15 OBD2 Tuning Kit without Token Limitation.

When your KESS  V2 Token use up,pls follow below article to add Token.

Kess v2 fw v4.036 Add Tokens Manual


Q: I will start program EDC16, fiat/alfa/lancia, which hardware is probably better, KESS V2 or Galletto?

A: KESS v2 is better one with no token limitation and no checksum error.


Q: Which computer system can KEES V2 be installed on?

A: KESS V2 can install it on Windows 7 and Windows XP.


Q: How to update KESS V2 from Software V2.15 Hardware V3.099 to Software V2.22

Hardware V4.036?

A: Well, SE87-B can be updated to SE87-C, but need to send back the main device and pay 95USD. Please don’t update it yourself, or it will damage the firmware of KESS v2.


Q: What is the difference between KESS V2 and K-TAG?

A: Beside world-wide famous brand cars, K-TAG also supports trucks, traktors, bikes and work with a small part of motorcycle. Otherwise, KESS V2 has OBD function (means KESS V2 program ECU by OBD diagnostic cable) while K-TAG doesn’t have.

Q:Some users are confused what’s better among FGTECH Galletto 4 V54, Kess V2 and Ktag

A:Difference between FGTECH Galletto 4 V54, Kess V2 and Ktag


Q: What is the difference Between KESS V2 Tuning kit and Fgtech V53?

A: They both can do many cars, but they do cars via different ways. Fgtech V53 has BDM function, but KESS V2 does not have. KESS V2 has Anti-mediation lock module, it can do new and encrypted cars better than Fgtech V53.


Q: Someone told me that KESS V2 can’t do EDC17 well, such as Bosch EDC 17 (cp04-CP14-CAN-Med17.X) and Bosch Bosch EDC 17 C54 (Passat, Golf, Crafter, Octávia, Yeti-VW).

A: Yes, KESS V2 can’t do EDC17 at present. It can do EDC16 well, but when you do it, you need to connect the Anti-mediation lock module to read and write data for vehicles. Becuase new style vehicles have new encrypted ways.


Q: How many kinds of languages does KESS V2 support?

A: Supported language including English, German, Spanish, Italian, Portuguese, French.


Q: When KESS V2 read ECU, I got checksum error.

A: Please search “visual C++ 2005 library” on Google, then download it and install it, this error will be solved.


Q: How does KESS V2 checksums work? Does KESS V2 automatically confirm and rewrite? Does KESS v2 work with truck? Such as: Mercedes MP1/MP2/MP3 or MAN TGA.

A: After reading the software, KESS v2 will automatically calibrate checksums. KESS V2 doesn’t work with truck, because the truck voltage is too high and KESS V2 will be burnt out.

 Q:UART pinout / connections on RX KESS v2 and TX KESS v2 with USB adapters …It seems to have differences between the connections…

A:Click to know RX and TX KESS V2 UART Wiring Connection Solution

Q: How to connect KESS V2 to K-LINE med 17, do you have any manual or diagram?

A: If your car is OBD diagnostic socket, just plug the OBD cable into the car; if your car is not OBD diagnostic socket, after you select the ECU type in the KESS V2 software, the diagram will appear and show you how to connect (see the following pictures)




Q: When I use KESS V2 and choose the version 12, 8L E4, type D13B, HP 400, ECU TRW EMS2,”OK” button is not available.

A: “OK” button not available means KESS V2 doesn’t support this car model. Besides, KESS V2 only covers car models, not trucks.


Q: After I open “KSuite.exe” and ready to run KESS V2, all of the following icons are gray and locked, I can’t go on.



A: It means it doesn’t Found New Hardware, back to check whether the driver is installed successfully.  Advice you contact us to send you KESS V2 ecu chip tool video tutorial.


Q: KESS V2 has error “Connections not established”


A: The driver is not successfully installed, go to “Device Manager” to check whether it has KESS V2 driver? Advice you contact us to send you KESS V2 video tutorial.