Display Signal Circuit between Navigation ECU and Multi-display: Procedure

1. Check digital communication cable connector
   1. Check if the digital communication cable connectors between the display and navigation module display and the multi-display have any connection problems. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE .
2. Check that the screen display is normal.

   OK

   Screen display is normal.

NG → See step   2 

OK → END 

1. Replace the multi-media module wire. Refer to DISASSEMBLY .
2. Check that the screen display is normal.

   OK

   Screen display is normal.

NG → See step   3 

OK → END 

1. Replace the digital communication cable between the display and navigation module display and the multi-media module wire.
2. Check that the screen display is normal.

   OK

   Screen display is normal.

NG → See step   4 

OK → END 

1. Replace the multi-display. Refer to DISASSEMBLY .
2. Check that the screen display is normal.

   OK

   Screen display is normal.

NG → See step   5 

OK → END