w220 new key and car locked out

[labusas]

Please need your expertise on 2001 S500 lockout, all keys lost and new key.

Problem: Customer lost all keys. Car was locked and entry was made by lifting inside door switch manually. Alarm was triggered. Made new key from EZS. Car security is ON, alarm goes off every time any door opened.

New key turns EZS and starts the car and drives until ignition is off.
Ignition OFF and key out - car keeps running and EZS won't turn again when key inserted.
To make switch work again - disconnect and connect battery cables at the passenger feet. Then it works once again.

With Star I have EZS error "B1012, Output Circuit 15"

Is this because car is in some kind of "lock out mode"?

How to fix it with STAR, developer is available, please?

Regards, Mates

[smayer]

disassemble EZS and check micro switch and solder

[labusas]

Tanks Smayer,
Solder is double checked OK. Why would micro switch fail or stick after micros were removed. Could it be from the heat? If it is a switch then what am I looking for?

Someone has more details about switch repair, that would help.

[smayer]

Post a photo from the EZS, I think you have a mechanical problem, maybe the center piece don't completely return to outside when you remove the key or the switch is stucked in on position.

[labusas]

The center plastic piece (where key goes in and pushes it in) retracts all the way out.
The yellow micro switch I didn't check and didn't take pictures :(. The car is with the worried customer now... until I figure out the solution.

[labusas]

I'm attaching files of both mcu.
Are they suppose to be the same?
They were not same when first read with ETL 908 programmer.
Could this cause the symptoms cause R1 is almost empty?

[labusas]

If anyone could contribute about resetting the alarm on w220, please.
I don't understand why a newly made key that starts the car can't disarm the alarm!
This alarm could still be a cause of the key problem and remote not working, or is it?
I'll check the microswitch next time I'm with the car.

[vanos batam]

can hight or can low on ezs problem

[makhlouf]

y have problem to download

[labusas]

Hi, Vanos. Are you saying the problem CAN HI OR LO and of alarm not resetting is inside EZS or elsewhere? I was able to access both processors of EZS with AVDI and diagnose fully with STAR which leads me to believe it's fine.

Makhlouf, what do you mean? problem with file download? it works here..

[vanos batam]

Hi, Vanos. Are you saying the problem CAN HI OR LO and of alarm not resetting is inside EZS or elsewhere? I was able to access both processors of EZS with AVDI and diagnose fully with STAR which leads me to believe it's fine.

Makhlouf, what do you mean? problem with file download? it works here..



a/c display and window` working ???

[labusas]

AC yes, window don't work

[vanos batam]

change EZS...

[labusas]

What I didn't try is to disable ATA, anti-theft alarm by closing all the doors, locking inside then turning Ignition ON and finally using inside power door switch to disable ATA.
Would that work?
Trying to figure out what the issue is:
1. EZS, fault with microswitch (maybe flux sticking)
2. ATA engaged, hense all doors function dissabled
3. something else in CAN line

[labusas]

Ok Vanos, I trust your expertise. Ordered used EZS, will write files from original to it.
Is file from R2 (main processor) enough or are both necessary?
Regards

[vanos batam]

yes....write both procesor dump.to second EZS must same part number..no problem its different mcu number..

[labusas]

Have you mates read this 1j35d with xprog original? I don't want to solder if possible on the new EZS.
If yes, what's connections are like?

[smayer]

Beter solution is desolder and use ETL 908.

[labusas]

In the pic, purple circled black part is a little melted from heat.
Would this part retract with the key operation and maybe is a cause ignition not being turned off when key is out?

[smayer]

Check if micro switch open when you remove the key. Next time remove plastic parts before desolder MCU, or protect whit aluminum tape.

[labusas]

Will do, thanks
I can't recall if It's possible to see micro switch operation without dis-assembly on this one.
>>>>
Update,
yes the micro switch operation is clearly visible without diss-assembly. If it's faulty - you'll see.

[labusas]

>>>
yes....write both procesor dump.to second EZS must same part number..no problem its different mcu number..>>>

About above that Vanos wrote. How to properly clone mcu eeprom with ETL 908?:

1. Use FULL ETL eeprom file and write back?
2. Use only area that was used for online key server which is from 0800 to 09ff ?

A very big portion of a FULL ETL eeprom is empty, will it not overwrite something?

Hope this helps many people as it does me..
Thanks very much

[puu]

Read eeprom make new key, coding.. Solved

[labusas]

Hi, to follow up,
in the end it was soldering.
I learned it's best to remove all original solder, clean with acetone or other good cleaner then add new solder. Now the soldered ON MCU will be less likely to not make a 100% connection.
Thanks so much to all who helped.

[agabna]

Hi, to follow up,
in the end it was soldering.
I learned it's best to remove all original solder, clean with acetone or other good cleaner then add new solder. Now the soldered ON MCU will be less likely to not make a 100% connection.
Thanks so much to all who helped.
hello
i think if you had das check the real value

if the windows not working the problem in mcu no 2
the data for the mcu is not the same

[labusas]

Correct, MCU 2 or confort MCU was the one.
Thanks kindly, Agabna

[labusas]

To, Agabna
I ment the soldering issue was at MCU 2.
but
Do you mean both 908 mcu's data has to be identical?
It wasn't when I first read them.
I thought 705 has to be same but not 908.
Please confirm.
Thanks

[agabna]

To, Agabna
I ment the soldering issue was at MCU 2.
but
Do you mean both 908 mcu's data has to be identical?
It wasn't when I first read them.
I thought 705 has to be same but not 908.
Please confirm.
Thanks
hello
in the link below the same ezs data you can see if they are the same our no

http://www.digital-kaos.co.uk/forums/f178/mb-s220-need-key-291796/

thanks

[agabna]

To, Agabna
I ment the soldering issue was at MCU 2.
but
Do you mean both 908 mcu's data has to be identical?
It wasn't when I first read them.
I thought 705 has to be same but not 908.
Please confirm.
Thanks

hello
yes i mean first check the soldering for mcu no 2

thanks

[labusas]

hello
in the link below the same ezs data you can see if they are the same our no

http://www.digital-kaos.co.uk/forums/f178/mb-s220-need-key-291796/

thanks

In the link EZS has 1D69J 705 and it has both mcu same, yes.
My EZS is newer with 908 and mcu's are not same.