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Solved ✔ Read ECU med 17.5 with ktag problem
15-09-2020, 10:15 AM, (This post was last modified: 17-09-2020, 04:45 AM by raffy haddad.)
Post: #1
ZVW  Read ECU med 17.5 with ktag problem
hello

this is my story

2 years ago i read my ECU with ktag 
all went good
this is my ecu

   

i read with this protocol

   

ok? so all good with this ECU.



so i bought a second hand , that is compatible with my car....


this ecu..

   

they are exact same inside...


same boot ...

   

inside it..

   

   

so my question is..

why do i getting this?

why can i not read it?



What do i do wrong?

I do exact same procedure when i did my first ECU (that i have now in my car)
The ECU works, i can see it in vcds

   
15-09-2020, 10:25 AM,
Post: #2
RE: Read ECU med 17.5 with ktag problem
Hello,
i had same issue with an EDC16U31.
Maybe this help: Try different values on voltage.
15-09-2020, 10:31 AM, (This post was last modified: 15-09-2020, 10:34 AM by onoff.)
Post: #3
RE: Read ECU med 17.5 with ktag problem
(15-09-2020, 10:25 AM)Bartelbee Wrote:  Hello,
i had same issue with an EDC16U31.
Maybe this help: Try different values on voltage.

(15-09-2020, 10:31 AM)onoff Wrote:  
(15-09-2020, 10:25 AM)Bartelbee Wrote:  Hello,
i had same issue with an EDC16U31.
Maybe this help: Try different values on voltage.

different values on voltage..

what do you mean?
ktags voltage power adapter?
15-09-2020, 16:48 PM, (This post was last modified: 15-09-2020, 16:53 PM by Nkhchyk.)
Post: #4
RE: Read ECU med 17.5 with ktag problem
Maybe Ecu just simple damaged? Or Ur power supply module not give proper amps.
I got some Ecu that need more Amp for be readable( Ford Sid for example) but look like it ix not Ur case as Ecu is same.
U can try to give up to 3 amps to this and see.
Start from 2 amps.
Thx
P.s. sorry i did not see that ecu is visible in diagnostic program.
Check connection and power supply
[-] The following 1 user says Thank You to Nkhchyk for this post:
  • onoff
15-09-2020, 17:10 PM,
Post: #5
RE: Read ECU med 17.5 with ktag problem
(15-09-2020, 16:48 PM)Nkhchyk Wrote:  Maybe Ecu just simple damaged? Or Ur power supply module not give proper amps.
I got some Ecu that need more Amp for be readable( Ford Sid for example) but look like it ix not Ur case as Ecu is same.
U can try to give up to 3 amps to this and see.
Start from 2 amps.
Thx
P.s. sorry i did not see that ecu is visible in diagnostic program.
Check connection and power supply

yes i will check my power supply..
i think 99% it is that...
15-09-2020, 18:58 PM, (This post was last modified: 15-09-2020, 19:47 PM by onoff.)
Post: #6
RE: Read ECU med 17.5 with ktag problem
ok the problem was the power supply...
but now when i hit read im getting this
"Ktag errore generico"
what is this?

i put bigger power supply..
now i dont have that generico...

so im getting communication error with the ecu
15-09-2020, 21:15 PM,
Post: #7
RE: Read ECU med 17.5 with ktag problem
Check the voltage between the red-black wires of ktag (switched by start reading).
[-] The following 1 user says Thank You to evgenijj for this post:
  • onoff
16-09-2020, 21:05 PM, (This post was last modified: 16-09-2020, 21:35 PM by onoff.)
Post: #8
RE: Read ECU med 17.5 with ktag problem
i can see the green led going to close and then on again
i can also see the amp going from about 0,2A to 0,5A

so its try to read it but aim still getting
getting communication error with the ecu

problem solved
must read in P128
and have 3A power


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