Visual Mute Signal Circuit between Navigation Receiver Assembly and Multi-display [08/2014 - ]: Procedure

1. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H93-11 (VMTI) - Body ground	Engine switch on (ACC) Screen display changes	3.5 V or higher → Below 1 V → 3.5 V or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Multi-display Assembly)

NG → See step   2 

OK → See step   4 

1. Disconnect the H97 multi-media module receiver assembly connector.
2. Disconnect the H93 multi-display assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-10 (VMTF) - H93 -11 (VMTI)	Always	Below 1 Ω
   H97-10 (VMTF) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the multi-display assembly with a new or known good one. Refer to REMOVAL [08/2014 - ] .
2. Check that the screen display is normal.

   OK

   Screen display is normal.

NG → See step   5 

OK → END