OBD-II Diagnostic Trouble Code
U0284
Lost communication with active grille air shutter module A missing message
U
Network
modules / CAN bus
modules / CAN bus
0
Generic
SAE standard
SAE standard
2
Network subsystem
84
Lost communication with active grille air shutter module A…
Severity · general guide
Moderate
Module communication fault
Code type
Generic
System
Network
Standard
ISO/SAE Controlled
Fault type
Communication Loss