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. While driving the vehicle, compare the "SPD" indicator to the reading on the speedometer. Check if these readings are almost equal.

      OK: The readings are almost equal. 

   OK: REPLACE NAVIGATION ECU 

   Fig 1: Diagnostic Tool Display - Vehicle Sensors Screen

   Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

   NG: Go to next step 

2. PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

   Refer to "Speed signal does not change in the navigation check mode" in the PROBLEM SYMPTOMS TABLE  .

   NEXT: END