RX and TX KESS V2 UART Wiring Connection

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

Puzzle:
In a thread, i can see that:
RXD become TXD then TXD become RXD And to finish the link between 1 and 13 pins become 1 and 25…
Am i wrong?
If i’m right which are the good connections?
Uart Connection

Another one

User solution:
RX and TX unit KESS V2 the reverse at USB adapter.
Connect RX KESS v2 to TX USB Adapter, TX KESS v2 to RX USB adapter.
Especially on my picture in the upper left corner of the photo adapter and connector db25.
Pin 1 should be shorted to Gnd.

Note: TRY ON YOUR OWN RISK

Kess V2 V4.024 Truck Master 2.0.8 Free Download

Free to get Kess V2 Ksuite 2.0.8 master version clone for truck OBD ECU chip tuning at uobdii.com!!

Free download Ksuite 2.08 for truck diagnosis:
http://www.chinaautodiag.com/download/k-suite-2.08.zip
(NOTE: this software can be used on KTAG ecu programmer also, but not for truck diagnosis with it.)

Operation system:
Windows XP

Compatible device:
Kess V2 master ecu programmer truck version firmware 4.024

Truck lists in the Kess v2 2.08 FW 4.024:
(the list only available for specialized kess v2 truck master)

AGRALE BUSES
AGRALE TRUCK
ASTRA TRUCKS
CUMMINS->Power Generator (QSX 15)
DAEWOO RRUCKS->Bus (BX212), Bus (FX212)
DAF BUSES->SB 4000
DAF TRUCKS->CF65, CF75, CF85, LF45, LF55, XF105, XF95…
FIAT
FORD->Ranger, transit tt9, transit ttf
FORD TRUCKS->Cargo, F-250…
HYUNDAI->H1, H1 (II)
INTERNATIONAL TRUCKS
IVECO TRUCKS->Cursor 10/13/8, Daily, Eurocargo, New domino, Strals 10/13/8, Tector…
KING LONG BUSES->XMQ, XQM…
LAND ROVER->Defender
MAN LATIN->Constellaton
MAN TRUCKS->14, 26, 8, bud, fe, le m2000,tg-a, tg-l, tg-m, tg-s, tg-x
MERCEDES TRUCK->Actros, Atego, Axor, Accelo, Otaro,Oto, Conecto, Econic, Tourismo, Touro, Travego, Unimogo, Vario, Zetros…
NISSAN->Atleon, Cabstar, Interstar, Primaster, Primera
PETERBITLT TRUCKS->335
RENUALT->Mascott, Master (ii), Trafic (II)
RENAULT TRUCKS->Magrum, Medium, Premium
SCANIA TRUCKS-> Series 4, series g, series p, series r…
TATA TRUCKS->Novus, Prima
VOLKSWAGEN TRUCKS->Constellation, Worker
VOLVO BUSES->City, Coach, Interoity
VOLVO TRUCKS->Fe, fh, fl, fm, fmx

How to choose the best Kess V2/Ktag Master China Clones

There are too many Kess v2 and K-TAG master ECU tuning clones in China market,which one should you choose? In the following parts, uobdii.com provides you three 3 ways to pick up correct one.
Tips:
If you need fix/repair ECU, you need Ktag. If you want ECU remapping,you need both Kess v2 and Ktag.
Option 1: Check the basic information including version especially the hardware version, the tunning way (via OBD or BDM), the vehicle coverage, the language and if the price.
Details shown as following comparison table

	Kess V2 vs. K-TAG Ktag Ksuite
Item No.	SE87	SE87-B	SE87-C	SE87-D	SE80	SE80-B	SE80-D
Item Name	KESS V2	KESS V2	KESS V2	KESS V2	Ktag	Ktag	KTM100
Price	US$85	US$75	US$89.99	US$179	US$79	US$179	US$379
Version	Software V2.10 Hardware V3.099	Software version: V2.10 Hareware: V3.099	Software V2.15 Hardware V4.036	Software version: V2.15 Hareware: V4.036	Software V2.13 Hardware V5.001	Software V2.11 Hardware V6.070	Software V2.13 Hardware V7.003
Tokens	60 Tokens available, after use it up, get J-Link to add tokens.	60 Tokens available, after use it up, get J-Link to add tokens.	No Token Limitation	with token reset button, ater use up tokens, just press it to reset.	500 tokens after use it up, get J-Link to add tokens.	with token reset button, ater use up tokens, just press it to reset.	with token reset button, ater use up tokens, just press it to reset.
OS	Windows XP	Windows XP	Windows XP	Windows 7 and Windows XP	Win XP/7(partly)	Windows XP	Better Win XP
Language	English, German, Spanish, Italian, Portuguese, French	English, German, Spanish, Italian, Portuguese, French	English, German, Spanish, Italian, Portuguese, French	English/German/ Spanish/ Italian/ Portuguese/ French	English, German, Spanish, Italian, Portuguese, French	English, Italian, German, French, Portuguese, Spanish	English, Italian, Portuguese (other language is customized)
Function	read and write the Data of Engine ECU	read and write the Data of Engine ECU	read and write the Data of Engine ECU	read and write the Data of Engine ECU	read and write the Data of Engine ECU	read and write the Data of Engine ECU	read and write the Data of Engine ECU
Vehicle Coverage	World-wide famous brand cars	World-wide famous brand cars	World-wide famous brand cars	World-wide famous brand cars	World-wide famous brand cars, trucks,traktors and bikes	World-wide famous brand cars, trucks,traktors and bikes	Support both Car, Motorcyle and Truck ECU Programming
Support Truck	NO	NO	NO	NO	Yes	Yes	Yes
Support Motorcycle	Yes, work with a small part	Yes, work with a small part	Yes, work with a small part	Yes, work with a small part	Yes, work with a small part	Yes, work with a small part	Yes, work with a small part
Via BDM or OBD	Via OBD	Via OBD	Via OBD	Via OBD	Via BDM	Via BDM	Via BDM
Update	by CD	by CD	by CD	by CD	by CD	by CD	by CD
Update fee	SE87 and SE87-B,SE87-E can be updated to SE87-C, But Need to send back the main device and pay additional money.				SE80 can be updated to SE80-B, But Need to send back the main device and pay additional money.

Option 2: Customers feedback reference
This table can only show the basic information; customer feedback on kess v2 and ktag is more helpful.
Customer Feedback on Kess V2 VS Ktag:
Kess (even china good clone)…more stable than Mpps on can-line and good job on recovery…
and best ktag-trasdata-no obd but safe boot mode,pinout direct conection and bdm…
KESS V2 is a ECU programming tool that is perfect for OBD use, while KTag is perfect for Jtag, BDM and all the Boot application (tricore and ST10).
With KESS V2 you programming directly through the OBD port of the vehicle, while with Ktag you need to take apart the ECU and open it, after you can make the read/write operation.
Many ECU has the advantage that can be read and write from OBD port (so KESS V2 is perfect), but there are lot ECU that need to disassemble from the car and open and this is the case for all the ECU that need to be programmed with Jtag, BDM and Boot protocols, so KTAG is needed.
FYI, the difference between master and slave version:
If you have master version you can work directly on the program you have write on the vehicle (tuning, egr off, ….) and rewrite after directly. If you are a slave custommer (who depend of a master (who do modificated), you read the programme (cripted by genius), you send it to the master, he do what you whant (money paid) and he re-sent to you to write in the ecu machine
it is expensive for the slave user who depend of a master.

Option 3: Check the PCB
From the PCB, you can judge KESS V2/KTAG quality.
Take the best selling Ktag V6.070 (SE80-C) and Kess v2 V4.036 (SE87-C) for example.

For other PCB, just browse www.uobdii.com and search KESS V2 or ktag.
Hope this article is helpful.

Kess V2 Clone “Security code not ready” Customer Solutions

I have had V2.13 kess v2 ecu tuning kit master clone built with firmware V4.036 for about 4 months and read & write to about 8 cars. And last week, I went to send a VW Caddy EDC16. This read fine with no error’s at all.. Got the file mapped..

But today, error message “security code not ready” always came with ksuite.
read a MK5 Gold TDI EDC16—> got this error “security code not ready”
went to ID the Caddy and got the map—> got the same error “security code not ready”
tried to read it—> still the same error
changed the Speed min—> still the same error
waited 40 min in the car with the key on switch 2—> still did the same error
  

Optional solutions by other users with the same error – security code not ready
— solution 1
I had this problem once after writing with empty battery.
kess v2 4.036 master says all ok, but after this, the car crank but not start.
cooling ventilator works.
Helps to write the ecu in BDM mode. But first you need full BDM for it.
my tuner have prepaired file fo me to write it. After writing, I can read out it an make DPF off.

— solution 2
very easy!
Just change read speed to slow
But, if this does not work, leave ignition on position two for 30-40mins
Then try to read ECU without turning ignition off when KESS V2 Tuning Kit ksuite software ask.

— solution 3
connect and correctly choose driver
Choose setup, in options IDENTIFY, READ, WRITE, RECOVER, SPECIAL and SETUP
Choose SPEED, in 2 options PULL UP and SPEED
Select MINIMUM, in 2 options MINIMUM and MAXIMUM.
Note these options do not appear to be sticky so you must do this for each attempt.
It is also important to have around 14.5 volts present, best achieved with a stabilised power supply suitable for programming support, but I have had success with a heavy duty jump starter/charger connected. It might be worth mentioning that trying this with the headlamps or side lamps on in an attempt to smooth things out results in read failure every time, as does a voltage of 13 volts.

Here, i used Solution 2, only made the read speed slower. And all backed to work normally. i have used this Kess v2 ecu programmer to read a MK5 Gold TDI successfully this morning.