Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter [09/2015 - 08/2019]: Procedure

1. Disconnect the J54 radio receiver assembly connector.
2. Disconnect the J57 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
   J54-16 (ADPG) - J57-1 (ADPG)	Always	Below 1 Ω
   J54-5 (AGND) - J57-7 (AGND)	Always	Below 1 Ω
   J54-7 (VAR+) - J57-2 (VAR+)	Always	Below 1 Ω
   J54-8 (VAL+) - J57-3 (VAL+)	Always	Below 1 Ω
   J54-15 (VA-) - J57-4 (VA-)	Always	Below 1 Ω
   J54-16 (ADPG) or J57-1 (ADPG) - Body ground	Always	10 kΩ or higher
   J54-5 (AGND) or J57-7 (AGND) - Body ground	Always	10 kΩ or higher
   J54-7 (VAR+) or J57-2 (VAR+) - Body ground	Always	10 kΩ or higher
   J54-8 (VAL+) or J57-3 (VAL+) - Body ground	Always	10 kΩ or higher
   J54-15 (VA-) or J57-4 (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 [09/2015 - 12/2017]  , or refer to  PROBLEM SYMPTOMS TABLE [12/2017 - 08/2019] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR