U0002 - CONTROLLER AREA NETWORK (CAN) DATA BUS: HIGH SPEED BUS - PERFORMANCE PROBLEM/ CONFIGURATION ERROR
POST UPDATED IN October, 2021
Description of DTC code U0002 Generic
The control modules that are connected to the Controller Area Network (CAN) circuits monitor frequently the serial data communication during the car performance. They send several commands and working information to each other.
The control modules have pre-recorded information about the messages that need to be exchanged in the serial data circuits for each virtual network. These messages are monitored, as well as some messages. They are used by the receiving module as an indication of the availability of the transmission module. The monitoring timeout is 250 ms. Each of these messages contains the identification number of the transmitter module.
This code U0002 OBDII DTC is set when a supervised periodic message is not received, which includes the availability of the transmitter module