Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

CHECK HARNESS AND CONNECTOR ASSEMBLY) (RADIO RECEIVER TELEVISION DISPLAY

Disconnect the radio receiver connector R31 and television display assembly connector R14.

Measure the resistance according to the value(s) in the table below.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION REFERENCE TABLE

Tester connection	Condition	Specified condition
VV+ - NTSC	Always	Below 1 Ω
VA- - SGN1	Always	Below 1 Ω
VA- - SLD	Always	Below 1 Ω
VV+ - Body ground	Always	10 kΩ or higher
VV- - Body ground	Always	10 kΩ or higher

Fig 1: Identifying Radio Receiver & Television Display Assembly Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

INSPECT TELEVISION DISPLAY ASSEMBLY (OUTPUT SIGNAL)

Reconnect the television display assembly connector R14.

Fig 2: Identifying Television Display Assembly Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the waveform according to the table below.

TESTER CONNECTION SPECIFIED CONDITION REFERENCE TABLE

Tester connection	Condition	Specified condition
VV+ - Body ground	DVD display is ON	A waveform synchronized with display signals is output

HINT:

The waveform pattern may differ from that shown below due to differences in oscilloscope setting. A normal television display assembly operating condition can be determined if any waveform is output.

Reference: Oscilloscope waveform

Fig 3: Identifying Oscilloscope Waveform
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Terminal: VV+ - Body ground
  Setting: 20G mV/DIV, 10 μs/DIV.
  
  Condition: DVD display is ON.

NG: REPLACE TELEVISION DISPLAY ASSEMBLY

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