Data Signal Circuit between Radio Receiver and Stereo Jack Adapter [03/2017 - ]: Procedure

1. Disconnect the K135 radio and display receiver assembly connector.
2. Disconnect the K5 No. 1 stereo jack adapter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K135-2 (US1-) - K5-9 (UDO-)	Always	Below 1 Ω
   K135-3 (US1+) - K5-10 (UDO+)	Always	Below 1 Ω
   K135-5 (USO1) - K5-12 (UJSS)	Always	Below 1 Ω
   K135-2 (US1-) or K5-9 (UDO-) - Body ground	Always	10 kΩ or higher
   K135-3 (US1+) or K5-10 (UDO+) - Body ground	Always	10 kΩ or higher
   K135-5 (USO1) or K5-12 (UJSS) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [03/2017 - 06/2017]  , or refer to  PROBLEM SYMPTOMS TABLE [06/2017 - 08/2018]  , or refer to  PROBLEM SYMPTOMS TABLE [08/2018 - 09/2019]  , or refer to  PROBLEM SYMPTOMS TABLE [09/2019 - 10/2020]  , or refer to  PROBLEM SYMPTOMS TABLE [10/2020 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR