Inspection Procedure

1. Check for foreign matter on the display.

   OK: The display is clean. 

NG: CLEAN DISPLAY AND RECHECK TOUCH PANEL 

OK: Go to Next Step 

1. Enter the "Display Check" mode (Touch Switch Check) (See DISPLAY CHECK MODE  ).
2. Touch the display in the area where the switch malfunction occurs.

   OK: A "+" mark appears at the touched position. 

Fig 1: Diagnostic Tool Display - Touch Switch Check
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

OK: REPLACE RADIO AND NAVIGATION ASSEMBLY