NAVIGATION SYSTEM > AVC-LAN Circuit between Multi-display and Television Camera ECU

for Preparation Click here


DESCRIPTION

Each unit of the rear view monitor system connected to the AVC-LAN (communication bus) communicates by transferring the signals from each switch.
When +B and GND shorts occur in the AVC-LAN, the rear view monitor system will not function normally as communication is discontinued.

WIRING DIAGRAM


E108356E03


INSPECTION PROCEDURE

1.CHECK WIRE HARNESS (TELEVISION CAMERA ECU - MULTI-DISPLAY)
E107575E05

  1. Disconnect the L64 ECU connector.

  1. Disconnect the L46 multi-display connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L64-29 (TX+) - L46-18 (TX2+)
    		Always
    		Below 1 Ω
    L64-30 (TX+) - L46-19 (TX2+)
    		Always
    		Below 1 Ω
    L64-29 (TX+) - Body ground
    		Always
    		10 kΩ or higher
    L64-30 (TX+) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE