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View Full Version : 2002 mercedes w203 eis key dont initialise



drivesure
28th November, 2014, 04:45 PM
i have a mercedes w203 eisand the key do not want to iniatialise - light standing solid on ignition signal tester on the car and on the bench. car came with this problem. hc08 - can someone have a look at the dump to see if everything is ok with it. i wrote keys, 6 and key 1(used) and key 3 - all three keys not initialising on the vehicle .

here is dump - and keys generated. any advice as to what can cause this - it must be eis issue or software issue . i think strongly a software issue. thanks

puiu
28th November, 2014, 07:03 PM
Read HC08 flash too,maybe there is problem..

Puiu

autodigitec
28th November, 2014, 08:27 PM
Is the key that you made transmitting anything? Do you have any IR reader to test it?

When coil is turned on, it usually means it is still waiting to receive key message.

drivesure
28th November, 2014, 09:19 PM
yes coil is good, wrote 3 keys and coil is active because i did not initialise the keys yet... will check the flash ..

bali motor
29th November, 2014, 11:47 PM
your hardware ezs if problem. your data is ok..
check IR recever on ezs.

drivesure
30th November, 2014, 03:19 PM
i have realised my mcu 4j74y is where the problem is. i have a used mcu - 4j74y but my orange softwaredont want to write to the epprom or the flash areas. any advice - or where can buy reliable mcu for this use?