DAS Mux repair

[toniz]

Hi guys,

My star decided to call it quits today.
Green light on, but when connected to the laptop, Virtual machine freezes and becomes inoperative. If i disconnect the serial cable from either side, VM comes back immediately. If i disconnect car cable, it unfreezes for a second and freezes back up.
Has anyone managed to repair one of these units yet? It's a clone but has been working for over a year. I use laptop with true serial. Second laptop same story.
Serial cable tested, all good.

Any feedback is highly appreciated.

Toni

[eduardo74]

Few issues:
probably have operating system issue,
or maybe your VM file is damaged,
or if you are using external disk maybe bad sectors,
or if you are using external disk, USB cable defective?

[toniz]

I have a back up of the VM file, and tried already, but no success.
I haven't tried another HDD, but will do so, and will post results.

[toniz]

Yep, another HDD and problem is the same.

[DB_member]

What do you get from the CAESAR test? Can you test your multiplexer with another laptop with native Windows/Star installation?

[toniz]

I can not do a proper Caesar test, as the VM freezes once the MUX is connected.
If i play with the Com port settings, it sometimes unfreezes, but then i get error 102 - Com port initialization error at Caeasar. If i unplug car cable the VM unfreezes for a second, if i do test in that second i get 104 Download not possible. And with Mux disconnected, i get com port OK, but No hardware detected.
Like i said , it's been working all along, i have a back up of the VM file, from day one.
I don't have laptop with native installation, but it clearly looks like the Mux has a problem on the serial port. Tried re soldering the board, but no change.

[DB_member]

I can not do a proper Caesar test, as the VM freezes once the MUX is connected.

I missed this point, strange how the serial communication issue can freeze the computer completely. Would be interesting to see what happens with a non-VM setup.

A pity that instructions to fix typical multiplexer issues are rare. After all, broken multiplexers are not that rare, specifically those cheaper ones. I've seen several posts referring to the "104 D2Download not possible" fault.

[toniz]

Did borrow another MUX today (original one, supplied by Actia), used my cables, no freezing but i do get error 9551 , and Caesar - 104 download not possible.

I wonder if i can make it work, i have a car to finish urgently.

Alternatively, i do have Xentry 01.2011, i can attempt to do native install.
How difficult is this? Does it require any keys, etc.?
Should the original MUX work with this?

[DB_member]

Did borrow another MUX today (original one, supplied by Actia), used my cables, no freezing but i do get error 9551 , and Caesar - 104 download not possible.

I wonder if i can make it work, i have a car to finish urgently.

Alternatively, i do have Xentry 01.2011, i can attempt to do native install.
How difficult is this? Does it require any keys, etc.?
Should the original MUX work with this?

How did you conclude it was an original Actia mux? If it reads like that on the label, it could still be a clone. What I'm after is that your cable might not be compatible with that mux.

If you had another mux for testing, why did you not test your mux (and cables) with the computer that came with this mux?

Assuming your VM backup copy is good and you had at least one good mux with correct cables, it does sound like your COM port settings are still not correct. Could you have a look at the host computer COM port settings as well as the VM COM port settings and report?

[toniz]

How did you conclude it was an original Actia mux? If it reads like that on the label, it could still be a clone. What I'm after is that your cable might not be compatible with that mux.

If you had another mux for testing, why did you not test your mux (and cables) with the computer that came with this mux?

Assuming your VM backup copy is good and you had at least one good mux with correct cables, it does sound like your COM port settings are still not correct. Could you have a look at the host computer COM port settings as well as the VM COM port settings and report?

I know that they have it on lease from the local dealer.
Also, it is using round rs485 on both ends of the PC cable.
And did not want to try my mux on their station to avoid any possible damage.
Anyway, in the process of doing a fresh 01.2011 installation, and will post results.

Thanks

[eduardo74]

Round box with label RS485 is fake, there is nothing inside, just cable pass thru. :-)
Opened more than 5 of this, all is empty, but cable is on both sides of box sometimes cause problems

[DB_member]

Round box with label RS485 is fake, there is nothing inside, just cable pass thru. :-)
Opened more than 5 of this, all is empty, but cable is on both sides of box sometimes cause problems

I've seen square boxes that are empty inside, the same box that on a good mux has a converter inside.

But I believe toniz was referring to the round connector at each end of the cable, the one the genuine diagnosis computer is using (thus no RS232 converter needed). Even this mainly proves that the laptop is genuine but it would be unlikely that one would use a clone with a genuine laptop, I assume.

[eLKa]

I`ve repaired some multiplexers; for proper diagnose You should connect ceasar to laptop without VMware and run ceasar test; cloned multiplexers that I saw had rs232 &rs485 integrated circuits inside black square box; post here attatchment with your test; I hope it helps in diagnose;
regards an sorry for my english

[toniz]

Got my new Mux today, and all good and working with the old hard and VM file.
I guess the old mux just died.
Now i just need to figure out, how to get it working on native 01.2011 installation.

I tried the old Mux, caeser test from the laptop (no VM), but always get - Device not in state ready, or no device selected. With the new one Caeser test goes all OK.

Thanks everyone for the input.

Still would be nice yo repair the old unit.

[ChengLynn]

Hello to all members of this great forum, i have a big problem with my mux!
It works any more.:banghead:
I have make Ceasar test and upload it to this thread.
I have a second mux and it works fine with the same cables, so i think the cables are ok.
If anybody know how to repair it, or have a step by step guide for mux repair, it was great if you help me to repair my mux. I know that my mux is not the best quality because it was very cheap.

Many thanks for your help!
best regards Cheng

[elkostv]

Check this resistors and diodes which i make with red color ore bether change all resisors becouse they are bad produced ,they are mostly problem with this mux and raport what hapened later.

Regards

[xrhstaras77]

Me i change transistor TIP42C end BCP56 end resistors with nuber 331, 222, 153, end diode (red) ...is 5,1volt end 7,5volt ....now my system work.
(This system is very very bad. The problem is with 24volt, with trucks. The TIP42C end resistor 331 ...baked)

[RROBHI]

Greetings to all members here- all the best in the new year,

I have a genuine Mercedes multiplexer Part D3, who worked with Compact 4 PC (touch screen IS BROKEN NOW and some components on main board is burned out,repair is too expencive) multiplexer is still valid and work fine,but I need the connection cable that will connect the classic PC through COM port RS-232 (i have IBM T 30, with com port). I bought the cable through e-Bay, but he is wearing a black box on which was written 232-485, with this cable can not be connected to the star 2000 multiplexer with computer! this is cable for C3 mux and this hawe difrent wiring sheme! , whether someone has a wiring diagram for this star 2000 cable without black box ? , the connectors are the same, with one side connects to the RS 232 and the other on the multiplexer,

thanks in advance for your help

[DB_member]

Greetings to all members here- all the best in the new year,

I have a genuine Mercedes multiplexer Part D3, who worked with Compact 4 PC (touch screen IS BROKEN NOW and some components on main board is burned out,repair is too expencive) multiplexer is still valid and work fine,but I need the connection cable that will connect the classic PC through COM port RS-232 (i have IBM T 30, with com port). I bought the cable through e-Bay, but he is wearing a black box on which was written 232-485, with this cable can not be connected to the star 2000 multiplexer with computer! this is cable for C3 mux and this hawe difrent wiring sheme! , whether someone has a wiring diagram for this star 2000 cable without black box ? , the connectors are the same, with one side connects to the RS 232 and the other on the multiplexer,

thanks in advance for your help

Did you check what is inside the black box with the label "RS232 - RS485"? If it is empty, you need another cable, one which comes with high quality multiplexers (if you were my neighbour, I would sell you the spare one I have).

If the cable seems to have a real RS485 converter, either the cable or the mux or your laptop serial port is broken. IBM T30 laptops sometimes have issues with the serial port. It would be useful to check the laptop with another multiplexer set that is known to work from a serial port.

I guess the mux is unlikely broken if it was working fine until your tablet got broken.

[kappaca]

hello someone and managed to repair the mux I have the same problem

[snelle rabbit]

Check this resistors and diodes which i make with red color ore bether change all resisors becouse they are bad produced ,they are mostly problem with this mux and raport what hapened later.

Regards



hello,

i have the same mux and is broken.
those resistors from 100 and 102, does anybody know the value of these.

i desoldered them and the one with 100 gives me 10 ohm
the one with 102 gives me 1000 ohm.

is this correct ?


thanks and regards

[sapperjon]

100 it`s 10*10^0=10 ohm, 102 it`s 10*10^2=1000 ohm or 1 kohm.

[evgenijm]

hello,

i have the same mux and is broken.
those resistors from 100 and 102, does anybody know the value of these.

i desoldered them and the one with 100 gives me 10 ohm
the one with 102 gives me 1000 ohm.

is this correct ?


thanks and regards

Check the TIP32 (TIP42) transistor

[snelle rabbit]

Check the TIP32 (TIP42) transistor


i will change the tip 42 to, also i replace the 7805 and 7808


thanks for the quick response

regards:beer:

[cbp]

hello DK members.
I also have a dead MUX, this one is a clone china type.
It works fine with 38 pin cars, but not with OBDII.
DK member Hurtman helped me to find the problem. Thanks for that mate.
here is the caesar test I did.
Device: Part D
Toolkit-Resultcode: 1
SDconnect Toolkit - device diagnostic - Part D
==============================================
CAESAR STOS+ Rev.:2.12 from Jun 16 2005
generated protocol file from 01.08.2011 09:12
SystemCheck :
Check serial ... 0 Ok
CAESAR HW Detection :
D2Access ... 0 Ok
D2DownLoad ... 0 Ok
CAESAR Part D2 detected on COM2 with baudrate: 19200
CAESAR version check :
D2CheckSNVER ... 0 Ok
User is Daimler-Benz AG
User Authentification 1
Classification 0
Serial Number 028594
Authorization Level 4
Part D
Hardware Authentification 011205
Hardware Date 031205
Special EEPROM check :
D2 Special EEPROM check:
Inst. date registered ... 0 Ok
D2 Special CAN Test :
Special Test ... 3001 Error in CAN1 environment on Part D2 board
CAESAR version check :
D2CheckSNVER ... 0 Ok
User is Daimler-Benz AG
User Authentification 1
Classification 0
Serial Number 028594
Authorization Level 4
Part D
Hardware Authentification 011205
Hardware Date 031205
Slave check :
D2 Slave check
D2 Processor ... 0 Ok C165 (mask step CA) is mounted.
D2 RAM ... 0 Ok
D2 FLASH ... 0 Ok
D2 EEPROM ... 0 Ok
D2 SERCTL1 ... 0 Ok
D2 UART1/2 ... 0 Ok
D2 ADC ... 2500 Error ADC
D2 Display Power Supply :
D2 Power Battery ... Voltage KL30 = 12.5 V
D2 Power Ignition ... Voltage KL15 = 00.3 V
D2 Voltage K-Lines :
D2 State K-Lines (35) ... Total 1 (+), 34 (-)
Please notice in red are the faults.


Special Test ... 3001 Error in CAN1 environment on Part D2 board ( I read that are caused by dead CAN CHIPS ( 2 of them on all MUXs)
D2 ADC ... 2500 Error ADC ( I read that this caused by a bad MAX192BCWP)
Here is my dilemma:

a) I am not sure which are the CAN chips..i am guessing that the AN82527 are the ones that need to be replaced, since they are the only ones that are SERIAL COMMUNICATIONS CONTROLLER AREA NETWORK PROTOCOL chips found on the board. ( image 1)
b) I did found the MAX192BCWP)
c) main question is, which ones should I replace first? the CAN chips or the MAX192BCWP, or should I change all of them?
Any ideas are very welcome.
Cheers.

[cbp]

I fix the MUX !!!!!
I changed the 2 CAN chips, and MAX.
Now the caesar test is perfect !!!
I need to test the vehicles, but so far looks pretty dam good !!
elfdiagnostic
==============
Device: Part D
Toolkit-Resultcode: 1
SDconnect Toolkit - device diagnostic - Part D
==============================================
CAESAR STOS+ Rev.:2.12 from Jun 16 2005
generated protocol file from 06/02/2012 15:10
SystemCheck :
Check serial ... 0 Ok
CAESAR HW Detection :
D2Access ... 0 Ok
D2DownLoad ... 0 Ok
CAESAR Part D2 detected on COM2 with baudrate: 19200
CAESAR version check :
D2CheckSNVER ... 0 Ok
User is Daimler-Benz AG
User Authentification 1
Classification 0
Serial Number 028594
Authorization Level 4
Part D
Hardware Authentification 011205
Hardware Date 031205
Special EEPROM check :
D2 Special EEPROM check:
Inst. date registered ... 0 Ok
D2 Special CAN Test :
Special Test ... 0 Ok
CAESAR version check :
D2CheckSNVER ... 0 Ok
User is Daimler-Benz AG
User Authentification 1
Classification 0
Serial Number 028594
Authorization Level 4
Part D
Hardware Authentification 011205
Hardware Date 031205
Slave check :
D2 Slave check
D2 Processor ... 0 Ok C165 (mask step CA) is mounted. D2 RAM ... 0 Ok
D2 FLASH ... 0 Ok
D2 EEPROM ... 0 Ok
D2 SERCTL1 ... 0 Ok
D2 UART1/2 ... 0 Ok
D2 ADC ... 0 Ok
D2 Display Power Supply :
D2 Power Battery ... Voltage KL30 = 11.6 V
D2 Power Ignition ... Voltage KL15 = 00.3 V
D2 Voltage K-Lines :
D2 State K-Lines (35) ... Total 0 (+), 35 (-)
Thanks to NIKI85 that he posted on another DK thread the solution to one of the faults.
Thanks to Hurtman that posted also another fix for the problem.
And of course thanks to all DK members gurus !!!
Cheers.

[kappaca]

selfdiagnostic
-----------------
error;device 'o(-1) ins't in state available

device part D
toolkit-resultcode:-1

[AEN]

Most likely, there is no connection between PC and MUX

[gmatj]

Most likely, there is no connection between PC and MUX

Agree - and most probable cause the rs232 chips are gone

[evgenijm]

My star C3 isn't tested. At first the strip runs quickly, and then at the end stops and in 7 minutes, gives out errors.


http://lostpics.net/img/2012-06/29/bi9f28otkv9cy5ge8sf01yan7.jpghttp://www.picshare.ru/view/172441/http://www.picshare.ru/view/172441/

[kenancatli]

hello
I have problem with benz star c4
It works fine with 38 pin cars, but not with OBDII
I have same problem, where buy you this chip? new can AN82527 chip and MAX192BCWP chip before solder programming?
best regards

[xrhstaras77]

DO NOT KNOW

[aluyg]

Hello to all members ! There is a plexer and can not communicate with. When you join you can see the power car but the Communication does not come l?tre.B?rmif?le help would be great.

[gmatj]

hello
I have problem with benz star c4
It works fine with 38 pin cars, but not with OBDII
I have same problem, where buy you this chip? new can AN82527 chip and MAX192BCWP chip before solder programming?
best regards

Have you tried FindChips.com Online Electronic Component Distributor Inventory Search (http://www.findchips.com) ???
They have both.

[gmatj]

Hello to all members ! There is a plexer and can not communicate with. When you join you can see the power car but the Communication does not come l?tre.B?rmif?le help would be great.

Could be lots of things going wrong - Most probable communication has gone due to fault RS-232 chips on the Mux

[PremierD]

:eek:........................

[gmatj]

:eek:........................


:beer::knuddel:

[kuzmichh]

Maybe it help someone for repair Caesar

[Pzolee]

Hi.

Please C3 interface serial cable pinout.
Thank you

[Mar1us]

Hello, resoldering the components on all 3 pcb's of Chinese MUX C4 sorted the problems for me.

[adaptine]

Hello, I got the same mux as the one posted on first page and I'm wondering if its correct that the U103 and U107 should both be MAX232? Are there no RS485 tranciever?

[mexanico1971]

HI people !
I got this C3 to try to fix !
I have install native acronis image 9.2013 but no luck to connect C3 width PC !
I cut the wires of the cable and put one max232 in mux pcb !
here some pics !

any one have try it made this ?!
is the connections good ?!

BR

[mexanico1971]

OK !
now the PC and Xentry see the MUX !
today I solved problem of DAS key !
and green bar again !

BR

[mexanico1971]

HI again !

I found the sheme to conect diretely to the pcb of the C3 !
Only 8 wires use in COM port pins 2-9, pin 1 is not use, and pin 9 must be conected with pin 4.
Pinout of 10 pin for round cable:
1 - GND (to pin 5 COM)
2 - Vcc to adapter
3 - Tx+
4 - Tx-
5 - Rx+
6 - Rx-
7 - to pin 6 COM (DSR)
8 - to pin 7 COM (RTS)
9 - to pin 8 COM (CTS)
10 - to pins 4,9 COM (DTR,RI)

Do not use pin 2 (Vcc), find wire to pin 14 U107 and conect to pin 2 COM (RX),
find wire to pin 13 U107 and conect to pin 3 COM (TX)

but here in the midle box o the cable is diferent !

see midle pic of post before


come on guys, no one does trick"s on is on tools ?!

[eduardo74]

Hey guys any idea why K line not working when trying w203? CAN working perfectly, but k-line not, cannot enter in any module?

[adaptine]

My star C3 isn't tested. At first the strip runs quickly, and then at the end stops and in 7 minutes, gives out errors.


http://lostpics.net/img/2012-06/29/bi9f28otkv9cy5ge8sf01yan7.jpghttp://www.picshare.ru/view/172441/http://www.picshare.ru/view/172441/

Hello. I have the same issue as this. When starting the test, I can hear one relay click, and after 7 minutes the test finishes. Where should I look?
Mux is powered from an external powersupply with the 4 wire lead. +12v on red, 0v on black, white and yellow unplugged.

[paranox]

thank you man

[zanovo]

Hello, colleagues.

SDConnect C4 works fine with Xentry-DAS 03.2015 with SN:333333
After XDOS 12.2015 was installed, I try to update MUX using SDTOOLKIT with next result:

00_ClearCeFlashDisc.zip - OK
01 Bootimage 2_3.zip - OK
02_CSD_2_10.zip - Sdconnect is not connected to the diagnosis computer. (512)
02_CSD_2_11.zip - Sdconnect is not connected to the diagnosis computer. (512)
03_PmPic29_Cpld 13.zip - OK
11_CaesarEngine_090.zip - DCDI_eErrorCode=201 (201)
21_WlanRoamingEnable.zip - OK
22_WlanRoamingDisable.zip - OK
31_CyclicLogger_ON.zip - OK
32_CyclicLogger_OFF.zip - OK
99_SD_Fuso_CaesarEngine090.zip - DCDI_eErrorCode=201 (201)

Some items finish update with errors. The device still working OK.
Please suggest what could be wrong? How to fix this problem?

[maxpolska]

Update only 00_ClearCeFlashDisc.zip - OK

And Start Xentry Model S220 065
Update start Automatic please wait until the end

finished

[Breket]

Hi,


I get this unit from my friend. Someone tried to repair it but without success. I read on forum make test and replace max232 and t42. But before everything I am asking can you check photos and give comments. Also, I do not have software for it and link for corresponding SW will be great.


I can't attach photos here (too large), so here is the link on gdrive:
https://drive.google.com/drive/folders/1dw1BWjM7oAagr1sl9VJ_k47orKFoB3CD?usp=sharing

[cloviskit]

Hallo everyone.
Should anyone have a problem with their multiplexer, do not throw away, I can fix for and revive it. Just pm me

[erdilmen]

Hello, colleagues.

SDConnect C4 works fine with Xentry-DAS 03.2015 with SN:333333
After XDOS 12.2015 was installed, I try to update MUX using SDTOOLKIT with next result:

00_ClearCeFlashDisc.zip - OK
01 Bootimage 2_3.zip - OK
02_CSD_2_10.zip - Sdconnect is not connected to the diagnosis computer. (512)
02_CSD_2_11.zip - Sdconnect is not connected to the diagnosis computer. (512)
03_PmPic29_Cpld 13.zip - OK
11_CaesarEngine_090.zip - DCDI_eErrorCode=201 (201)
21_WlanRoamingEnable.zip - OK
22_WlanRoamingDisable.zip - OK
31_CyclicLogger_ON.zip - OK
32_CyclicLogger_OFF.zip - OK
99_SD_Fuso_CaesarEngine090.zip - DCDI_eErrorCode=201 (201)

Some items finish update with errors. The device still working OK.
Please suggest what could be wrong? How to fix this problem?
i have same problem with ur bro, did u solved it ?

[tonyaki2]

hi...i have a problem my c3 with w203 coupe...cant connect car gateway error on das....half communicate car...cant connect ecu and ezs...but see serial esp control but cant connect....what is the problem my multiplexer this my selftest logs....
CAESAR STOS+ Rev.:2.12 from Jun 16 2005
generated protocol file from 05.09.2015 16:42
SystemCheck :
Check serial ... 0 Ok
CAESAR HW Detection :
D2Access ... 0 Ok
D2DownLoad ... 0 Ok




CAESAR Part D2 detected on COM2 with baudrate: 19200
CAESAR version check :
D2CheckSNVER ... 0 Ok
User is Daimler-Benz AG
User Authentification 1
Classification 0
Serial Number 027685
Authorization Level 3
Part D
Hardware Authentification 011200
Hardware Date 040301
Special EEPROM check :
D2 Special EEPROM check:
Inst. date registered ... 0 Ok
D2 Special CAN Test :
Special Test ... 0 Ok
CAESAR version check :
D2CheckSNVER ... 0 Ok
User is Daimler-Benz AG
User Authentification 1
Classification 0
Serial Number 027685
Authorization Level 3
Part D
Hardware Authentification 011200
Hardware Date 040301
Slave check :
D2 Slave check
D2 Processor ... 0 Ok C165 (mask step CA) is mounted.
D2 RAM ... 0 Ok
D2 FLASH ... 0 Ok
D2 EEPROM ... 0 Ok
D2 SERCTL1 ... 0 Ok
D2 UART1/2 ... 0 Ok
D2 ADC ... 0 Ok
D2 Display Power Supply :
D2 Power Battery ... Voltage KL30 = 14.7 V
D2 Power Ignition ... Voltage KL15 = 14.0 V
D2 Voltage K-Lines :
D2 State K-Lines (35) ... Total 5 (+), 30 (-)
wich parts need check it? please help me 16pinodb cable are ok checked...

[alex1313]

Hello everybody,

I recently purchased a c3 off ebay, (the one made by actia - original one i believe). it was without the cables which i purchased separately. I read up on threads downloaded the 9.2014 software and installed it and ran it on a dell e5500, (after installing win xp) which has a native serial port configuring the ports as suggested. (com2, 115000 bitrate). Connected the mux with the cables i purchased, one obd ii and one rs232 with the box in the middle (it isnt empty - i checked) of the cable. Problem is as soon as i go into das the mux disconnects. I applied all the patches and the blacklist fixes (even manually) but cannot connect to the vehicle.

i ran a caesar test and here are the results:
SDconnect Toolkit - device diagnostic - Part D
Page 1 of 1
SDconnect Toolkit - device diagnostic
CAESAR STOS+ Rev.:2.12 from Jun 16 2005 generated protocol file from 17.12.2018 09:58
SystemCheck :
Check serial ... 0 Ok
CAESAR HW Detection : D2Access ... 0 Ok
D2DownLoad ... 0 Ok
CAESAR Part D2 detected on COM2 with baudrate: 19200
CAESAR version check : D2CheckSNVER ... 0 Ok
User is Daimler-Benz AG User Authentification 1 Classification 0
Authorization Level 3 Part D
Hardware Authentification 010202
Hardware Date 041900
Special EEPROM check : D2
Special EEPROM check: Inst. date registered ... 0 Ok
D2 Special CAN Test : Special Test ... 0 Ok
CAESAR version check : D2CheckSNVER ... 0 Ok
User is Daimler-Benz AG User Authentification 1
Classification 0
Authorization Level 3
Part D
Hardware Authentification 010202
Hardware Date 041900
Slave check : D2
Slave check D2
Processor ... 0 Ok C165 (mask step CA) is mounted.
D2 RAM ... 0 Ok
D2 FLASH ... 0 Ok
D2 EEPROM ... 0 Ok
D2 SERCTL1 ... 0 Ok
D2 UART1/2 ... 0 Ok
D2 ADC ... 0 Ok
D2 Display Power Supply :
D2 Power Battery ... Voltage KL30 = 11.8 V
D2 Power Ignition ... Voltage KL15 = 00.3 V
D2 Voltage K-Lines : D2 State K-Lines (35) ... Total 1 (+), 34 (-)
Testresult for Part D:


I changed the bin files to the d2,d,and t as well as the calfix872 for d2,d,and t. Changed com port from 1 to 2 in bios, no change either. Changed baud rates no connection too. With the d2 configuration it proceeds one screen after it disconnects, saying i should manually choose the data. All it reads is voltage. I proceed and it cannot read any units. With the T configuration it doesnt disconnect but the unlock icon changes to locked, and then an error appears. (applied also the blacklist patch for the 9/2014 installation).

Any help please?

[misiek1205]

Hello, maybe it will be helpful for someone. I had a error (1.3)-3.515.2005 and i could not connect to any modules in my car W203. The DAS showed only the battery voltage and the serial number of ESP module. I found broken relay in my mux C3 (I attach a picture). Now after change to new everything works good without ESP module (shows the same error). Maybe someone known which relays are responibility about ESP communication?
611873

[tonyaki2]

i try it repair and replaced this relay but the same problem....cant connect ecu and ezs...but see serial esp control but cant connect....which parts need check?

[ptikkala]

Here similar problem with SD Connect C4. Older cars like 2000-2003 doesnt work. I get stuck at the screen where it says turn on ignition. Any ideas for this error?

[agstronic]

il mio c3 mux errore di comunicazione 501-9565
hanno una soluzione grazie

[Mackhack]

Does anyone have the pinout from the MAX202CWE to the 19 pin round connector? I'm trying to diagnose this chip to see if that is the reason why this old Part D mux is not communicating with the laptop.

Thank you.