diagnostic code
 

hi again i have a diagnostic code of u0002 can bus communication any ideas what this is

Any other systems have DTC ?

Moudules now communicate with each other vai CAN line, and if 1 module has DTC, it will quit talking to another till fault repaired and CAN code cleared...

Engine control has fault, so we will halt comm to ESC/ABS, and maybe TCM.. Brake light switch in the ESC module wiil toss ESC/ABS light, and shut down comm with other modules.