U0121 CODE
Thread Starter
Junior Member
Joined: Oct 2017
Posts: 53
Likes: 1
2016 CLS550 4matic
U0121 CODE
I have been dealing with this code which is a failure to communicate between the ABS module and the PCM. I cleared the code so as to start from scratch. I then unplugged the ABS module to see what other codes I got that way and can use process of elimination. I got U0122 code which it a failure of system computers to talk to each other so I know that its not the ABS its self and really the module. I go to the MB site to see what part I need. I open the hood copy the numbers and its not at all what the MB site says should be in there. I swear MB makes things harder than Japanese arithmetic. The ABS part is NOT WHAT MB SAYS SHOULD BE IN HERE WTF???????
A330PYLT
A330PYLT
Thread Starter
Junior Member
Joined: Oct 2017
Posts: 53
Likes: 1
2016 CLS550 4matic
UPDATE,
I pulled the module and took it to a friends shop. Now he had this catalog or brochure of some automotive electrics repair joint. We called them and they said send it to us and if we can fix it its $379 if we cant its just a $30 bench time. I figured I would risk the $30 because to get a new on is $1000 plus it needs to be programmed to the car so add about 2 to 300 hundred more for that. The called and said they can fix it and it carries a lifetime warranty.
It should be back to me by mid next week so I will keep all posted.
A330PYLT
I pulled the module and took it to a friends shop. Now he had this catalog or brochure of some automotive electrics repair joint. We called them and they said send it to us and if we can fix it its $379 if we cant its just a $30 bench time. I figured I would risk the $30 because to get a new on is $1000 plus it needs to be programmed to the car so add about 2 to 300 hundred more for that. The called and said they can fix it and it carries a lifetime warranty.
It should be back to me by mid next week so I will keep all posted.
A330PYLT
