B1595

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for HDD): B1595,B15D5: No Response from Rear Seat Entertainment System
B1595 - No Response from Rear Seat Entertainment System
B15D5 - Rear Seat Entertainment System Disconnectedn

DESCRIPTION

The display and navigation module display and multi-display controller sub-assembly are connected by the MOST communication line.

When a MOST communication error occurs between the display and navigation module display and multi-display controller sub-assembly, these DTCs will be stored.





HINT
For the MOST network, the display and navigation module display is the master unit.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)

(a) Check for optional components.

(1) Check that optional components (including associated wiring) which generate radio waves are not installed.

Result:





HINT
* Electrical noise from radio waves generated by optional components or the wiring for those components may affect MOST communication.
* This DTC may be stored when an MOST communication error occurs due to electrical noise.

B -- CHECK DTC
A -- Continue to next step.

2. REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)

(a) Remove optional components (including associated wiring).

NOTICE:
Do not remove optional components or associated wiring without the permission of the customer.

NEXT -- Continue to next step.

3. CHECK DTC

(a) Clear the DTCs Navigation System (For HDD).

(b) Recheck for DTCs and check if the same DTC is output again.

OK:

No DTCs are output.

NG -- CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY POWER SOURCE)

OK -- END

4. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY POWER SOURCE)

(a) Disconnect the G16 multi-display controller sub-assembly connector.





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

Standard Resistance:





(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





Text in Illustration





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

5. CHECK HARNESS AND CONNECTOR

(a) Disconnect the G16 multi-display controller sub-assembly connector.





(b) Disconnect the O15 stereo component amplifier assembly connector.





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

Standard Resistance:





Text in Illustration





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

6. CHECK HARNESS AND CONNECTOR

(a) Disconnect the G16 multi-display controller sub-assembly connector.





(b) Disconnect the G6 display and navigation module display connector.





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

Standard Resistance:





Text in Illustration





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

7. REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY

(a) Replace the multi-display controller sub-assembly Removal.

(b) Clear the DTCs Navigation System (For HDD).

(c) Recheck for DTCs and check if the same DTC is output again.

OK:

No DTCs are output.

NG -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Removal

OK -- END