Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus RX 350. 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 "Vehicle Sensors" (Navigation Check Mode) (See NAVIGATION CHECK MODE ).
  
  Fig 1: Diagnostic Tool Display - Vehicle Sensors Screen
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
OK: REPLACE NAVIGATION ECU

NG: Go to Next Step
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Refer to "Speed signal does not change in the navigation check mode" in the problem symptoms table (See PROBLEM SYMPTOMS TABLE ).

NEXT: END