Inspection Procedure

CHECK DTC

Perform a DTC check, and check that the display and navigation assembly (EMVN) code 58-43 is not displayed.

Result

RESULT REFERENCE

Result	Proceed to
DTC 58-43 is not output	A
DTC 58-43 is output	B

A: Go to Next Step

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.
  OK:
  
  The readings are almost equal.
  
  Fig 1: Displaying Screen - Vehicle Sensors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: Go to step 3
  
  OK: REPLACE DISPLAY AND NAVIGATION ASSEMBLY (See REMOVAL )
CHECK SPEED SIGNAL
1. Refer to "Speed signal does not change in the navigation check mode" in the problem symptoms table (see PROBLEM SYMPTOMS TABLE ).
  NEXT: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )