KTag EDC17C74 not identifying/reading ECU

[mttlr]

Hello guys,


i have a 2018 golf mk7.5 gtd dsg DGCA with a Bosch EDC17C74 (04L 907 309 R) (0 281 031 66) and i'm using Ktag 7.020 Red with SW V2.25. Unfortunately, Ktag cant read anything from this ECU. I use protocol and pinout 705 (boot pin with probe pen and bdm frame) and it doesen't even identify it, always ending up in a communication error.


The ECU is still working like a charm in my car after opening.


I already checked:

• GPT Cable pinout is correct
• D-SUB Cable pinout is correct
• tried powering ECU via KTAG with 12V 1A, 12V 1,5A, 12V 3,0A
• tried powering ECU with external 12V power supply
• tried different pinout found in the internet by dimsport where CAN-HI and -LO go to pin 51 and 52

When getting ID with Kess, it shows:
HW Ver. 04L907309R
Upg. SW 04L906026RK 7727
Engine R4 2.0l TDI


I also already tried reading it with a friends Ktag (also red, same versions) and its also not working / identifying.


I already searched the whole internet for days and i'am despairing...
Do you guys have another suggestions or things i could try to make it work?


Greetings from germany!

[gwiazdamb]

Hello guys,


i have a 2018 golf mk7.5 gtd dsg DGCA with a Bosch EDC17C74 (04L 907 309 R) (0 281 031 66) and i'm using Ktag 7.020 Red with SW V2.25. Unfortunately, Ktag cant read anything from this ECU. I use protocol and pinout 705 (boot pin with probe pen and bdm frame) and it doesen't even identify it, always ending up in a communication error.


The ECU is still working like a charm in my car after opening.


I already checked:

• GPT Cable pinout is correct
• D-SUB Cable pinout is correct
• tried powering ECU via KTAG with 12V 1A, 12V 1,5A, 12V 3,0A
• tried powering ECU with external 12V power supply
• tried different pinout found in the internet by dimsport where CAN-HI and -LO go to pin 51 and 52

When getting ID with Kess, it shows:
HW Ver. 04L907309R
Upg. SW 04L906026RK 7727
Engine R4 2.0l TDI


I also already tried reading it with a friends Ktag (also red, same versions) and its also not working / identifying.


I already searched the whole internet for days and i'am despairing...
Do you guys have another suggestions or things i could try to make it work?


Greetings from germany!

It turns out that your CAN is wrong there are 2 lines

[mttlr]

Thanks for replying, but i tried these two pinouts, the one where CAN goes to 30 and 31, and the one with 51 and 52.

Both options are not working

[gwiazdamb]

Check pick up voltage to 14V

Boot connected

[mttlr]

14,4V doesn‘t work either…

[mttlr]

Yes, boot connected via probe pen, proper connection, measured resistance of pen to clamp via multimeter, I’ll try 14v tomorrow and will report

[Panathaole]

Hello guys,


i have a 2018 golf mk7.5 gtd dsg DGCA with a Bosch EDC17C74 (04L 907 309 R) (0 281 031 66) and i'm using Ktag 7.020 Red with SW V2.25. Unfortunately, Ktag cant read anything from this ECU. I use protocol and pinout 705 (boot pin with probe pen and bdm frame) and it doesen't even identify it, always ending up in a communication error.


The ECU is still working like a charm in my car after opening.


I already checked:

• GPT Cable pinout is correct
• D-SUB Cable pinout is correct
• tried powering ECU via KTAG with 12V 1A, 12V 1,5A, 12V 3,0A
• tried powering ECU with external 12V power supply
• tried different pinout found in the internet by dimsport where CAN-HI and -LO go to pin 51 and 52

When getting ID with Kess, it shows:
HW Ver. 04L907309R
Upg. SW 04L906026RK 7727
Engine R4 2.0l TDI


I also already tried reading it with a friends Ktag (also red, same versions) and its also not working / identifying.


I already searched the whole internet for days and i'am despairing...
Do you guys have another suggestions or things i could try to make it work?


Greetings from germany!

Really you expect to read 2018 pass protected ecu with ktag clone? ( Maybe the very earliest version....)

[mttlr]

Really you expect to read 2018 pass protected ecu with ktag clone? ( Maybe the very earliest version....)

So you say i shouldnt expect my shitty clone, being able to read this ecu? I already thought of this at some point, but i didn't want to admit it

[br556hre]

Have you tried using protocol 675 (tc1797+no FLASH), or 739 (tc1791/tc1793+M58BW032FB) OR 748(tc1791/tc1793+no FLASH)?
image_2022-10-17_192704131.jpg

adding info pdf for all plugins

[mttlr]

I‘ll try when I’m home from work and will report

[peechie]

Buy pcmflash its a great tool for all VAG EDC17 and via OBD port, its good price

[mttlr]

Yeah, that’s what i‘m going to do when neither of this works

[gwiazdamb]

Buy pcmflash its a great tool for all VAG EDC17 and via OBD port, its good price

I confirm pcmflash very beaver prog without undressing it reads on the table
and the price is decent

[Panathaole]

For one ecu i don't think is worth to buy an ori tool..... just give the ecu to a tuner, or in a shop with ori tool to read it, the cost should be very low.. (and the risk too....)

[Henno1488]

There are much different EDC17C74 from VAG
My 04L907309R H22 and H24 did work fine with KTag clone
However 04L907309P could not been read with same tool and same wiring