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CONTINUING A80 ISM ISSUES W212 722.9

NAVMERC

Member
Joined
Jul 31, 2015
Messages
49
Location
PRESTON
Car
2012 W212 E250cdi
Hi all
I got a new ISM unit installed and coded in. Got the car started and drove it for 10 miles around the city.
All was well but the SERVO or the TCU malfunctioned again. I was all coded correctly with my STAR and SCN.

Here are some error codes I'm getting

ISM A80
U010187 COMMUNICATION WITH CONTROL UNIT "TRANSMISSION " HAS A MALFUNCTION THE MESSAGE IS MISSING

Y3/8N4
P0602 CONTROL UNIT Y3/8N4 (FULLY INTEGRATED TRANSMISSION CONTROL UNIT) IS NOT CODED
P2806 COMPONENT Y3/8S1 (SELECTION RANGE SENSOR) WAS NOT TAUGHT IN
P1693 COMPONENT Y3/8N4 (FULLY INTEGRATED TRANSMISSION CONTROL UNIT) IS DEFECTIVE

BUT
TCU is new and was fully coded and working and adaptions were carried out and working fine for a month
ISM is new and was fully coded online and working with the adaptions were carried out and working fine earlier

Can anyone shed some light on this?

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