Inspection Procedure

1. Disconnect the F29 display connector.
2. Disconnect the F25 receiver connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   F29-4 (VV-) - F25-2 (GND)	Always	Below 1 Ω
   F29-1 (VV+) - F25-1 (NTSC)	Always	Below 1 Ω
   F29-4 (VV-) - Body ground	Always	10 kΩ or higher
   F29-1 (VV+) - Body ground	Always	10 kΩ or higher
   F25-3 (SLD) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 1: Identifying Display And Navigation Module Display And Radio Receiver Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Reconnect the F25 receiver connector.
2. Check the waveform of the radio receiver using an oscilloscope.

   Measurement Condition 

   WAVEFORM REFERENCE
   
   

   Item	Content
   Terminal No. (Symbol)	NTSC (F25-1) - Body ground
   Tool Setting	0.2V/DIV., 10μsec./DIV.
   Condition	DVD played on radio receiver

   OK: Waveform is as shown in the illustration. 

NG: REPLACE RADIO RECEIVER ASSEMBLY  (See REMOVAL )

Fig 2: Identifying Radio Receiver Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  (See PROBLEM SYMPTOMS TABLE  )