B1248

MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: B1248: AVC-LAN Communication Impossible
B1248 - AVC-LAN Communication 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.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK OPERATION

(a) Check for AVC-LAN communication DTCs.

OK:

AVC-LAN communication DTCs are not output, and there are no symptoms specified in the problem symptoms table.

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

OK -- REPLACE GATEWAY ECU