Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter [09/2016 - 05/2019]: Procedure

1. Disconnect the I33 navigation receiver assembly connector.
2. Disconnect the I40 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 Navigation Receiver Assembly)
   *b	Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I33-25 (ADPG) - I40-9 (ADPG)	Always	Below 1 Ω
   I33-11 (AGND) - I40-10 (AGND)	Always	Below 1 Ω
   I33-26 (VAR+) - I40-6 (VAR+)	Always	Below 1 Ω
   I33-28 (VAL+) - I40-7 (VAL+)	Always	Below 1 Ω
   I33-27 (VA-) - I40-8 (VA-)	Always	Below 1 Ω
   I33-25 (ADPG) or I40-9 (ADPG) - Body ground	Always	10 kΩ or higher
   I33-11 (AGND) or I40-10 (AGND) - Body ground	Always	10 kΩ or higher
   I33-26 (VAR+) or I40-6 (VAR+) - Body ground	Always	10 kΩ or higher
   I33-28 (VAL+) or I40-7 (VAL+) - Body ground	Always	10 kΩ or higher
   I33-27 (VA-) or I40-8 (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 [09/2016 - 05/2019] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR