OBD-II Diagnostic Trouble Code
U0191
Lost Communication With Audio/Video Control Module “B”
U
Network
modules / CAN bus
modules / CAN bus
0
Generic
SAE standard
SAE standard
1
Network subsystem
91
Lost Communication With Audio/Video Control Module “B”
Severity · general guide
Moderate
Module communication fault
Code type
Generic
System
Network
Standard
ISO/SAE Controlled
Fault type
General