Inspection Procedure
WARNING: This page is about a different car, the 2003 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
- Check the navigation ECU.
CHECK:
Check voltage terminal +B.
OK:
- +B: 10 - 14 V
CHECK:
Check voltage terminal ACC when turning the ignition switch to ACC or ON position.
OK:
- ACC: 10 - 14 V
CHECK:
Check voltage terminals SYNC, VR or VG.
OK:
- SYNC, VR, VG: See of
- NG : Repair or replace the wire harness when all terminals are faulty. Replace the navigation ECU when the SYNC terminal is faulty.
- OK : Replace the multi-display.