Inspection Procedure

HINT:

After the inspection is completed, clear the DTCs.

1. CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE) 
   1. Enter the "Navigation Check" mode (Vehicle Sensors) (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.
      Fig 1: Identifying Vehicle Sensors Display Screen

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: The readings are almost equal. 

   OK: REPLACE NAVIGATION ECU 

   NG: Go to next step. 

2. CHECK VEHICLE SPEED SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND COMBINATION METER 

   Refer to the VEHICLE SPEED SIGNAL CIRCUIT BETWEEN THE NAVIGATION ECU AND COMBINATION METER  .

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