Navigation System Avc-Lan Circuit Between Navigation Ecu And Multi-Display
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
REPLACE NAVIGATION ECU
NAVIGATION SYSTEM - AVC-LAN Circuit between Navigation ECU and Multi-Display |
DESCRIPTION
Each unit of the navigation system connected to the AVC-LAN (communication bus) communicates by transferring the signals from each switch.When +B and GND shorts occur in this AVC-LAN, the navigation system will not function normally as communication is discontinued.In the AVC-LAN, the multi-display becomes the communication master, and the radio receiver assembly has enough resistance necessary for transmitting the communication.
WIRING DIAGRAM
INSPECTION PROCEDURE
Replace the navigation ECU with a normal one and check if the same problem occurs again.
- OK:
- Same problem does not occur.
| OK |
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| PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN DIAGNOSTIC TROUBLE CODE CHART |
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