Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE MAP DISC
1. Check that the map disc is not deformed or cracked.
  OK: No deformations or cracks appear on the map disc.
  
  Fig 1: Identifying MAP Disc
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE THE MAP DISC

OK: Go to next step.
CHECK THE MAP DISPLAY
1. Check if a touch scroll can be performed on the map display.
  OK: Touch scroll can be performed.
NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE PROBLEM SYMPTOMS TABLE )

OK: Go to next step.
NAVIGATION CHECK MODE (VEHICLE SENSORS)
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 2: Identifying Multi-Display - Vehicle Sensors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: GO TO "SPEED SIGNAL CIRCUIT (NAVIGATION ECU - COMBINATION METER ASSY)" IN THE FLOW CHART (SEE SPEED SIGNAL CIRCUIT (NAVIGATION ECU - COMBINATION METER ASSY) )

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE SEE PROBLEM SYMPTOMS TABLE )