Display Signal Circuit between Navigation ECU and Parking Assist ECU: Procedure

1. Check for the digital communication cable connector.
   1. Check if the digital communication cable connectors between the display and navigation module display and the parking assist ECU 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 digital communication cable between the display and navigation module display and the parking assist ECU.
2. Check that the screen display is normal.

   OK

   Screen display is normal.

NG → See step   3 

OK → END 

1. Replace the parking assist ECU. Refer to REMOVAL .
2. Check that the screen display is normal.

   OK

   Screen display is normal.

NG → See step   4 

OK → END