Data Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter [12/2015 - 11/2017]: Procedure

1. Disconnect the navigation receiver assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Disconnect the No. 1 stereo jack adapter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   D137-2 (SU1-) - D184-2 (UDO-)	Always	Below 1 Ω
   D137-3 (SU1+) - D184-3 (UDO+)	Always	Below 1 Ω
   D137-5 (USG1) - D184-5 (UJSS)	Always	Below 1 Ω
   D137-2 (SU1-) - Body ground	Always	10 kΩ or higher
   D137-3 (SU1+) - Body ground	Always	10 kΩ or higher
   D137-5 (USG1) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Navigation Receiver Assembly)
   *b	Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly)

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

(Refer to PROBLEM SYMPTOMS TABLE [12/2015 - 08/2016] Refer to PROBLEM SYMPTOMS TABLE [08/2016 - 11/2017] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR