Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter [03/2017 - 09/2019]: Procedure

1. Disconnect the K3 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
   K3-14 (ADPG) - K5-5 (ADPG)	Always	Below 1 Ω
   K3-10 (AGND) - K5-6 (AGND)	Always	Below 1 Ω
   K3-12 (VAR+) - K5-2 (VAR+)	Always	Below 1 Ω
   K3-11 (VAL+) - K5-3 (VAL+)	Always	Below 1 Ω
   K3-13 (VA-) - K5-4 (VA-)	Always	Below 1 Ω
   K3-14 (ADPG) or K5-5 (ADPG) - Body ground	Always	10 kΩ or higher
   K3-10 (AGND) or K5-6 (AGND) - Body ground	Always	10 kΩ or higher
   K3-12 (VAR+) or K5-2 (VAR+) - Body ground	Always	10 kΩ or higher
   K3-11 (VAL+) or K5-3 (VAL+) - Body ground	Always	10 kΩ or higher
   K3-13 (VA-) or K5-4 (VA-) - 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] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR