Visual Mute Signal Circuit between Navigation ECU and Multi-display [08/2015 - 08/2021]: Procedure

1. Disconnect the H11 multi-media module receiver assembly connector.
2. Disconnect the H27 multi-display assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H11-10 (VMTF) - H27-11 (VMTI)	Always	Below 1 Ω
   H11-10 (VMTF) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

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
   H11-10 (VMTF) - 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-media Module Receiver Assembly)

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

(Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2019] , or refer to PROBLEM SYMPTOMS TABLE [08/2019 - 08/2021] )

Result: 

NG 

REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY 

(Refer to REMOVAL [08/2015 - 08/2021] )