AVC-LAN Circuit Between Radio Receiver and Gateway ECU

NAVIGATION: NAVIGATION SYSTEM (for DVD): AVC-LAN Circuit between Radio Receiver and Gateway ECU
- AVC-LAN Circuit between Radio Receiver and Gateway ECU

DESCRIPTION

The navigation system uses the AVC-LAN to control communication between all of its units. Each unit is connected to the AVC-LAN and communicates by sending and receiving switch signals.

When the AVC-LAN has a +B short or a GND short, communication is cut and the navigation system will not function normally.

WIRING DIAGRAM





INSEPCTION PROCEDURE

PROCEDURE

1. CHECK WIRE HARNESS (GATEWAY ECU - RADIO RECEIVER)

(a) Disconnect the G3 ECU connector.





(b) Disconnect the R1 receiver connector.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE OR DIAGNOSTIC TROUBLE CODE CHART