Error reading BOSCH EDC17C46 KTAG.

[Sefior]

Hello.
I am trying to read/write EDC17C46 ECU.

It gives me an error:

"Communication error with the ECU: control all connections; if the problem persists, send the LOG file to the assistance"

I tried to read with P199 and P269, both is the same..

Anyone knows why and how I can read/write this ECU?

[bersch8688]

Rework your Hardware Ktag PCB

[ilkertdi]

Hello.
I am trying to read/write EDC17C46 ECU.

It gives me an error:

"Communication error with the ECU: control all connections; if the problem persists, send the LOG file to the assistance"

I tried to read with P199 and P269, both is the same..

Anyone knows why and how I can read/write this ECU?

If you use clone ktag, this ecu have been remapped an other tuner via other tool..
Yes youre ktag not read because ecu's file has did changed so ktag is not connect ecu.
Use An other tool. Same like x17-kess-fgtech-cmd and more...

[Sefior]

Rework your Hardware Ktag PCB

Thing is, I tried to read it, after trying to read it like 30 times it worked to read it once, (by luck maybe?) then I tried to read it again, did not work..

What could it be?

[Sefior]

If you use clone ktag, this ecu have been remapped an other tuner via other tool..
Yes youre ktag not read because ecu's file has did changed so ktag is not connect ecu.
Use An other tool. Same like x17-kess-fgtech-cmd and more...

No man, I have 2 ECU's that are the same, they are both not remapped with another tool before.

Kess also gives me error, WAKE UP error.

[rivalryan]

Try with independent power supply to ECU instead of KTAG cable.

[Sefior]

Try with independent power supply to ECU instead of KTAG cable.

How do you mean? Got a picture/video of example?

[carmageddon]

sure is not voltage problem, i did always this ecu with 12V 1000 mA.

have you checked the right position of the wire inside your DB15? maybe this pics can help you to check

[maajkii]

or just solder boot pin, maybe bad connection.
happend to my once or twice.

[rivalryan]

Pin 3 +15 = 12v pin 2 = gnd. connect to these with bench power supply or similar instead of using K-tag to power up ECU, leave everything else the same.

I have had to do this a few times and thats with genuine k-tag too.

Also as Maajkii sys check wire on both Boot pins.