Multi-Display Communication Error

NAVIGATION: NAVIGATION SYSTEM: Multi-display Communication Error
- Multi-display Communication Error

INSPECTION PROCEDURE

PROCEDURE

1. IDENTIFY THE COMPONENT SHOWN BY SUB-CODE

(a) Enter the diagnostic mode.





(b) Press the "LAN Mon" switch to change the mode to "LAN Monitor" mode.

(c) Identify the component shown by the sub-code.

HINT
* For example, "110 (multi-display)" is the component shown by the sub-code as shown in the illustration.
* The sub-code will be indicated by its physical address.
NEXT -- Continue to next step.

2. CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE

(a) Inspect the power source circuit of the component shown by the sub-code.

If the power source circuit is operating normally, proceed to the next step.

Component Table:

Component Table::

NEXT -- Continue to next step.

3. INSPECT RADIO RECEIVER

(a) Disconnect the radio receiver connectors.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





NG -- REPLACE RADIO RECEIVER
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - COMPONENT SHOWN BY SUB-CODE)

HINT
* Start the check from the circuit that is nearest the component shown by the sub-code first.
* For details of the connectors, refer to "TERMINALS OF ECU" Pinout Values and Diagnostic Parameters.
(a) Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the multi-display and the component shown by the sub-code.

(1) Disconnect all connectors between the multi-display and the component shown by sub-code.

(2) Check for an open or short in the AVC-LAN circuit between the multi-display and the component shown by the sub-code.

OK:

There are no open or short circuits.





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

5. REPLACE COMPONENT SHOWN BY SUB-CODE

(a) Replace the component shown by the sub-code with a normal one and check if the same problem occurs again.

HINT
The "Bluetooth" handsfree module is built into the radio receiver. If there is a problem, replace the radio receiver.

OK:

Same problem does not occur.

NG -- REPLACE MULTI-DISPLAY

OK -- END