Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter: Procedure

1. Disconnect the E5 radio and display receiver assembly connector.
2. Disconnect the E15 No. 1 stereo jack adapter assembly connector.
3. Measure the resistance according to the value(s) in the table below.
   Fig 1: Measuring Resistance Of Radio & Display Receiver Assembly - No. 1 Stereo Jack Adapter Assembly Harness & Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E5-25 (ADPG) - E15-9 (AUXO)	Always	Below 1 Ω
   E5-11 (AGND) - E15-10 (AGND)	Always	Below 1 Ω
   E5-26 (VAR+) - E15-6 (ARO)	Always	Below 1 Ω
   E5-28 (VAL+) - E15-7 (ALO)	Always	Below 1 Ω
   E5-27 (VA-) - E15-8 (ASGN)	Always	Below 1 Ω
   E5-25 (ADPG) - Body ground	Always	10 kΩ or higher
   E5-11 (AGND) - Body ground	Always	10 kΩ or higher
   E5-26 (VAR+) - Body ground	Always	10 kΩ or higher
   E5-28 (VAL+) - Body ground	Always	10 kΩ or higher
   E5-27 (VA-) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *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)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   2