OBD-II Diagnostic Trouble Code
U2603
Invalid signal received from another control module, Bus signal/message faults, Message missing
U
Network
modules / CAN bus
modules / CAN bus
2
Generic
SAE standard
SAE standard
6
Network subsystem
03
Invalid signal received from another control module, Bus signal/message…
Severity · general guide
Moderate
Module communication fault
Code type
Volvo
System
Network
Model
XC40
Years
2022