KESS V2 / KTAG Help

iMD said:

Hello forums.

I've been really interested to get to learn more about ecu's and tcus. So I bought th...

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• Clone software is frozen in time. The sellers advertise "V2.80" or "V2.25" like it's the newest thing, but those version numbers are often fabricated or cosmetic. The actual protocol database inside is usually from an older genuine Alientech release (often around 2016–2018 era). Alientech continuously adds new vehicles/ECUs to their genuine subscriptions — clones never get those updates.
• The Volvo V60 D4204T9 / Denso VEA support you're looking for was likely added by Alientech in a later protocol update that your clone software simply doesn't have. That's why it shows on the official list but is missing from your software.
• "Newer than official" is a lie. Clone sellers on AliExpress say this to sell units. In reality, genuine Alientech KESS V3 / KTAG is far ahead. The clones cannot connect to Alientech servers, so there are no real updates — ever.

• They work reasonably well for older, well-supported ECUs — Bosch EDC17, MED17, Siemens/Continental, Delphi, etc. on common VAG/BMW/Mercedes platforms from ~2005–2017.
• KTAG (bench/boot) clones tend to be more reliable than KESS (OBD) clones, since OBD protocols are more sensitive to timing issues.
• The BDM frame + adapters are generic hardware and perfectly fine for learning bench work.

• For bench/boot reading, look into tools with better community support — PCMFlash (with a genuine liсеnsе) covers a lot of Bosch ECUs on German cars and is reasonably priced per protocol.
• BitBox / ByteShooter for boot mode work on newer Bosch MG1/MD1 ECUs.
• Your clone KTAG can still be useful for older Bosch ECUs via BDM/JTAG that are in its protocol list — just don't expect it to cover anything recent.
• Keep the clone KESS for experimenting on cars that are actually in its database, but always verify the protocol is listed in YOUR software before attempting anything on a customer car.

Gemini said:

You're not stupid — you've just discovered the main problem with clone KESS V2 / KTAG units. Let me break it down for you:

The Clone Software Problem

That vehicle list PDF you found (tuned2race link, which is actually dead now — 404) was likely based on the genuine Alientech KESS V2 and KTAG protocol lists. The clone units you bought from AliExpress ship with сrаскed/modified firmware and software that is typically based on an older leaked version of the Alientech suite.

Here's what's going on:

• Clone software is frozen in time. The sellers advertise "V2.80" or "V2.25" like it's the newest thing, but those version numbers are often fabricated or cosmetic. The actual protocol database inside is usually from an older genuine Alientech release (often around 2016–2018 era). Alientech continuously adds new vehicles/ECUs to their genuine subscriptions — clones never get those updates.
• The Volvo V60 D4204T9 / Denso VEA support you're looking for was likely added by Alientech in a later protocol update that your clone software simply doesn't have. That's why it shows on the official list but is missing from your software.
• "Newer than official" is a lie. Clone sellers on AliExpress say this to sell units. In reality, genuine Alientech KESS V3 / KTAG is far ahead. The clones cannot connect to Alientech servers, so there are no real updates — ever.

What You Can Actually Do With Clones

That said, clones aren't completely useless for learning:

• They work reasonably well for older, well-supported ECUs — Bosch EDC17, MED17, Siemens/Continental, Delphi, etc. on common VAG/BMW/Mercedes platforms from ~2005–2017.
• KTAG (bench/boot) clones tend to be more reliable than KESS (OBD) clones, since OBD protocols are more sensitive to timing issues.
• The BDM frame + adapters are generic hardware and perfectly fine for learning bench work.

Regarding SM2 PRO

You're right that SM2 PRO has limited German car coverage in the base configuration. The additional modules (like the OBD Bench adapter, or specific protocol expansions) cost extra and the clone/grey market versions can be hit or miss.

Honest Recommendation for Learning

If you're serious about German cars specifically:

• For bench/boot reading, look into tools with better community support — PCMFlash (with a genuine liсеnsе) covers a lot of Bosch ECUs on German cars and is reasonably priced per protocol.
• BitBox / ByteShooter for boot mode work on newer Bosch MG1/MD1 ECUs.
• Your clone KTAG can still be useful for older Bosch ECUs via BDM/JTAG that are in its protocol list — just don't expect it to cover anything recent.
• Keep the clone KESS for experimenting on cars that are actually in its database, but always verify the protocol is listed in YOUR software before attempting anything on a customer car.

Bottom line: you're not doing anything wrong. The clone just doesn't have the protocols the sellers claim it does. Welcome to the frustrating world of clone tools — they're cheap for a reason.

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iMD said:

I understand but right now as it is I don't want to spend more money I just want to learn and keep g...

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• KTAG and KESS are not “general Renesas programmers”. They only support Renesas by specific device families / protocols that are included in that tool’s software and with the right physical adapter/harness.
• Even if the tool can do a “Renesas JTAG”, it may require a specific adapter (pinout) and may only work in certain modes (read/write/ID only) depending on the ECU generation.

• What exact ECU are you targeting (make/model/year + engine/ECU part number if possible)?
• Is the ECU Renesas definitely confirmed (or are you guessing)? If you have it, post the ECU HW/SW number from the label.
• What do you mean by “OBD 648 Micro Jtag(Renesas) 1048 for myKTAG or KESS”? Is it:
  - a physical adapter for KTAG/KTAG clone?
  - or a separate programmer sold as “1048”?
• Your exact KTAG/KESS clone type and software versions (you mentioned KTAG 2.25 and KESS 2.80—please confirm exact build/version screen photos if you can).