B1248 AVC-LAN communication is impossible

DESCRIPTION

This DTC is detected when communication between the AVC-LAN (radio receiver assembly or multi-display assembly) and multiplex network gateway ECU stops for more than 10 seconds.

DTC No.	DTC Detection Condition	Trouble Area
B1248	AVC-LAN communication is impossible	AVC-LAN (radio receiver assembly or multi-display assembly) Wire harness

INSPECTION PROCEDURE

1. CHECK OPERATION

1. Check for AVC-LAN communication DTCs.

   OK:

   AVC-LAN communication DTCs are not output.
   

NG	GO TO "DIAGNOSTICS TROUBLE CODE CHART" OF AUDIO SYSTEM OR NAVIGATION SYSTEM

OK
GO TO "PROBLEM SYMPTOMS TABLE" OF AUDIO SYSTEM OR NAVIGATION SYSTEM