W202 EIS sometimes dead no reaction

[HeXeN]

Hi, W202 1999, sometimes eis react in 4th time key in, sometimes need to 15 times try to turn ign, sometimes when crank it immediately stops, sometimes cranking good, sometimes central locking not react, key resoldered seems to be good, radio+ir signal ok, is this eis hardware problem? Maybe someone had exactly same issue

[PierreTheron]

Yes
Mcu's in EIS busy failing it seems .

[brend]

If you want to do good job ,for this trable, need test platform for ezs .
Because if you not have this ,its just stu:stupido2:d job.
How you know like problem in EZS:questionmark:
Just thinking away?

[Isiantek]

try to resolder EIS, check tapes connecting PCB inside EIS, mechanical part - connectors inside sometimes dont connetc too

[brend]

try to resolder EIS, check tapes connecting PCB inside EIS, mechanical part - connectors inside sometimes dont connetc too

Look Post 3 better.

[HeXeN]

Problem was in key. I read ezs in car by ir, then calculate pass on bench 17minutes, make new chrome key, and all works ok.