Inspection Procedure

HINT:

After the inspection is completed, clear the DTCs.

1. CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE) 
   1. Enter the "Vehicle Sensors" (Navigation Check Mode) (See NAVIGATION CHECK MODE  ).
   2. Check the gyro voltage.

      Standard voltage: 

      0.1 to 4.5 V 

   Fig 1: Screen Display - Vehicle Sensors
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPLACE NAVIGATION ECU 

   OK: Go to Next Step 

2. CLEAR DTC 
   1. Clear the DTCs (See DTC CHECK / CLEAR  ).
3. RECHECK DTC 
   1. Recheck for DTCs and check if the same trouble occurs again.

      HINT:

      If DTCs are detected frequently, replace the navigation ECU.

      OK: Malfunction disappears. 

   NG: REPLACE NAVIGATION ECU 

   OK: END