Inspection Procedure

WARNING: This page is about a different car, the 2005 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.

CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSY - MULTI-DISPLAY)

Disconnect the multi-display connector M3 and multi-display controller sub-assy connector R15.

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

Standard:

MULTI-DISPLAY CONNECTOR AND MULTI-DISPLAY CONTROLLER SUB-ASSY CONNECTOR TERMINALS RESISTANCE

Tester connection	Condition	Specified condition
SGD1 - SGN1	Always	Below 1 Ω
NTSC - NTS1	Always	Below 1 Ω
SG - SG3	Always	Below 1 Ω
NTSC - Body ground	Always	10 kΩ or higher
SGD1 - Body ground	Always	10 kΩ or higher
SG - Body ground	Always	10 kΩ or higher

Fig 1: Disconnecting Multi-Display Connector M3

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Disconnecting Multi-Display Controller Sub-Assy Connector R15

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step.

INSPECT MULTI-DISPLAY CONTROLER SUB-ASSY (OUTPUT SIGNAL)

Reconnect the multi-display controller sub-assy connector R15.

Measure the waveform according to the table below.

Standard:

TESTER CONNECTION AND SPECIFIED CONDITION

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

Fig 3: Disconnecting Multi-Display Connector M3

NG: REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSY (SEE MULTI-DISPLAY CONTROLLER SUB-ASSY )
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

HINT:

The waveform pattern may differ from that shown in the illustration below due to differences in oscilloscope setting. A normal multi-display controller sub-assy operating condition can be determined if any waveform is output.

Oscilloscope wave

Terminal: NTSC-Body ground

Setting: 500 mV/DIV 10 mus/DIV

Condition: DVD display is ON.

Fig 4: Oscilloscope Waveform Graph