Inspection Procedure

NAVIGATION CHECK MODE
1. Enter the "Navigation Check Mode".
2. Check the gyro voltage.
  Standard: 0.1 to 4.5 V
  
  Fig 1: Identifying Gyro Voltage
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPLACE NAVIGATION ECU (SEE REPLACEMENT )
2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN DIAGNOSTIC TROUBLE CODE CHART (SEE DIAGNOSTIC TROUBLE CODE CHART )