Inspection Procedure

CHECK: 

Check terminals +B.

OK: 

+B: 10 - 14 V 

CHECK: 

Check terminal ACC when turn ignition switch ACC or ON position.

OK: 

ACC: 10 - 14 V 

CHECK: 

Check terminal SYNC, VR or VG.

OK: 

SYNC, VR, VG: See "Navigation ECU" of "TERMINAL OF ECU" 

1. NG: Replace the wire harness when all terminals are faulty. Replace the wire harness when the SYNC terminal is faulty. 
2. OK: Replace the multi-display.