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Inspection Procedure

  1. NAVIGATION CHECK MODE (VEHICLE SENSORS CHECK) 
  1. Enter the "Navigation Check" mode (Vehicle Sensors) (see NAVIGATION CHECK MODE (VEHICLE SENSORS)  ).
  2. While driving, compare the "Speed" indicator to the reading on the speedometer. Check if these readings are almost the same.

OK: The readings are almost the same. 

Fig 1: Vehicle Sensors Check Screen
G02938516Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE RADIO AND NAVIGATION ASSY (SEE  RADIO RECEIVER ASSY  ) 

NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  DIAGNOSTIC TROUBLE CODE CHART