W204 ESL fault...can they be fixed ?

[joemajdalani]

mercis,Dave11764 is looking for new ESL NEC mcu,i recommended the legend

[MarkPRP]

He wants $100 for an NEC..

I can sell you one Dave..

[dave11674]

how much mark
drop me a pm mate

dave

[dave11674]

4th one in past couple of weeks and same again
wont lock when writing factory image to nec via k line
following PDF from ST
wont lock !!

LOG
Reading...

Version ROM: E03006
ESL State: Unlocked

Service Hash 2D96ABAB31CF4864
Key #1 Hash DBA2518062B23D54 enabled
Key #2 Hash DBA2518062B23D54 enabled
Key #3 Hash DBA2518062B23D54 enabled
Key #4 Hash DBA2518062B23D54 enabled
Key #5 Hash DBA2518062B23D54 enabled
Key #6 Hash DBA2518062B23D54 enabled
Key #7 Hash DBA2518062B23D54 enabled
Key #8 Hash DBA2518062B23D54 enabled
Transport TP C2E901F0EDBA7C5C OK

ESL is repairable - change motor only!

SSID: 00000000

Removing TP...
TP removed.
Error locking the ESL.

not good this
its driving me crazy
cant make money like this !

dave

[dave11674]

ok so these motors that are not spinning i tested them in my vice and applied 12v to them
they all spin up
so im thinking its a contact fault here
when i write factory to ESL after i rebuild it waits for motor to move and make contact with both switches to say write ok
but if no connection from the board to the motor it cant turn and make the 2 switches to say its locked
hmmmm
i think i need to modify this ESL
and make better contact to the pins
ill add wires if i have to
just to see if it grafts

cant hurt

dave

[darkshiningg]

ok so these motors that are not spinning i tested them in my vice and applied 12v to them
they all spin up
so im thinking its a contact fault here
when i write factory to ESL after i rebuild it waits for motor to move and make contact with both switches to say write ok
but if no connection from the board to the motor it cant turn and make the 2 switches to say its locked
hmmmm
i think i need to modify this ESL
and make better contact to the pins
ill add wires if i have to
just to see if it grafts

cant hurt

dave

im not done much on esl renew..im using MI
last time i received a esl unit and someone had opened b4..
i tried to read the esl dump file but nothing came out..
getting information and it show ok...all key unlock ...im not sure that the nec chip inside esl is in locked mode or not cause i didnt have tools to check this ...
lastly i changed used nec chip inside esl + motor .... virgin it and program it ...job done

if not mistake ..i gt measure the esl ground pin...there got a FET between the motor relay ground to the socket ground..if the esl is in locked mode ...the FET will cut the ground.....so the relay wont hv ground on it...

hope this info will help you..

[joemajdalani]

When you read ESL with MI you can see in bottom of screen if ESL has error or not.

[darkshiningg]

When you read ESL with MI you can see in bottom of screen if ESL has error or not.

when i get info...all yes..only activated is no..so i thought this esl is programmed by to other eis..
when i try to read dump..it only show read error command 7f..esl is not locked..
try to calculate dealee pasword, password found ..
get info again after renew ...same result