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. Check the gyro voltage
  Standard voltage: 0.1 to 4.5 V
NG: REPLACE NAVIGATION ECU (See REMOVAL )

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 (See REMOVAL )

OK: END