annoying electric problem of my e87,plz plz help

[stevenzx]

hi guys, plz plz help my 2008 e87 130i. it really gave me a big heahache!!
4 months ago, i got pt-can communication problem when i started the car. lots of warning lights was

on. i got someone check with ista, the ekp and jbe modules were failed, i replaced them with 2nd

hand modules and they were working well, but after one month, the same problem occoured. lots of

warning light on and the car wont go to 2nd gear.i bought a new jbe module and the car worked right

away.after another month, the car broken down again. it wont go to the 2nd gear, but when i restart

the car, sometime it was ok. it seems the jbe module is not failed at this time. i have checked all

the pt-can wiring and then are ok. i have replaced the battery and alternator with no luck. i

attached all the error codes, anyone can help me out, many many thanks!!
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