What is this U0121 code all about?

[IamYoung45]

Hello everyone!
I am new to this forum and I really need your help.
What this U0121 code is all about? My 2016 Siwft just got into it and I am not sure how to deal with it.
I would appreciate your thoughts pls.

 

[SuzukiDriver2024]

That is for Lost comms with ABS control modul. You should check if your car's connected properly to the battery. Check the wires.

 

[JackFrost]

Yeah the U0121 code typically indicates a lost communication issue with the anti-lock brake system (ABS). It’s best to have the connections checked or scan for more detailed error info.

 

[emmanuel710]

Hello everyone!
I am new to this forum and I really need your help.
What this U0121 code is all about? My 2016 Siwft just got into it and I am not sure how to deal with it.
I would appreciate your thoughts pls.

You'll want to check the wiring and connections to the ABS module, or have a mechanic with a good scan tool diagnose it. Best of luck!