Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

HINT

After the inspection is completed, clear the DTCs

CHECK VEHICLE SENSOR (NAVIGATION CHECK MODE)
1. Enter the "Navigation Check" mode (Vehicle Sensors) (See OPERATION CHECK )
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: Diagnosis Display - Vehicle Sensor (Navigation Check Mode)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: Go to step 2

OK: REPLACE NAVIGATION ECU (See REMOVAL )
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Refer to "Speed Signal does not Change in the Navigation Check Mode" in Problem Symptoms Table (See PROBLEM SYMPTOMS TABLE )

NEXT: END