Navigation System Avc-Lan Circuit Between Radio Receiver And Multi-Display
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT RADIO RECEIVER ASSEMBLY
CHECK WIRE HARNESS (RADIO RECEIVER ASSEMBLY - MULTI-DISPLAY)
NAVIGATION SYSTEM - AVC-LAN Circuit between Radio Receiver 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
| 1.INSPECT RADIO RECEIVER ASSEMBLY |
Disconnect the L53 receiver connector.
Measure the resistance of the receiver.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
L53-9 (TXM+) - L53-10 (TXM-)
| Always
| 60 to 80 Ω
|
| | REPLACE RADIO RECEIVER ASSEMBLY |
|
|
| 2.CHECK WIRE HARNESS (RADIO RECEIVER ASSEMBLY - MULTI-DISPLAY) |
Disconnect the L53 receiver connector.
Disconnect the L47 multi-display connector.
Measure the resistance of the wire harness side connectors.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
L53-9 (TXM+) - L47-2 (TX+)
| Always
| Below 1 Ω
|
L53-10 (TXM-) - L47-1 (TX-)
| Always
| Below 1 Ω
|
L53-9 (TXM+) - Body ground
| Always
| 10 kΩ or higher
|
L53-10 (TXM-) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS AND CONNECTOR |
|
|
| OK |
|
|
|
| PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN DIAGNOSTIC TROUBLE CODE CHART |
|
