Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Prius. 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 NAVIGATION CHECK MODE ).
2. Check the gyro voltage.
  Standard voltage: 0.5 to 4.5 V
NG: REPLACE NAVIGATION ECU

Fig 1: Diagnostic Tool Display - Navigation Check Mode
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step
CLEAR DTC
1. Clear the DTCs (see DTC CHECK / CLEAR ).
RECHECK DTC
1. Recheck for DTCs and check if the same trouble occurs again.
  HINT:
  
  If DTCs are detected frequently, replace the navigation ECU.
  
  OK: Malfunction disappears.
NG: REPLACE NAVIGATION ECU

OK: END