Inspection Procedure

WARNING: This page is about a different car, the 2007 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.

CHECK REAR SEAT ENTERTAINMENT SYSTEM

Check if the vehicle is equipped with the rear seat entertainment system.

Result:

REAR SEAT ENTERTAINMENT SYSTEM

Result	Proceed to
w/ Rear seat entertainment system	A
w/o Rear seat entertainment system	B

NG: Go to step 4

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (DISC PLAYER CHANGER - TELEVISION DISPLAY)

Disconnect the D24 changer connector.
Disconnect the R27 display connector.

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

Standard resistance

DISC PLAYER CHANGER - TELEVISION DISPLAY

Tester Connection	Condition	Specified Condition
D24-13 (SGD1) - R27-9 (SLD)	Always	Below 1 Ω
D24-16 (NTS1) - R27-11 (NTSC)	Always	Below 1 Ω
D24-32 (SG-) - R27-10 (SGN1)	Always	Below 1 Ω
D24-16 (NTS1) - Body ground	Always	10 kΩ or higher
D24-32 (SG-) - Body ground	Always	10 kΩ or higher

Fig 1: Identifying Harness & Connector (Disc Player Changer - Television Display)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

INSPECT TELEVISION DISPLAY

Fig 2: Identifying Television Display

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Reconnect the R27 display connector.

Check the waveform of the television display using an oscilloscope.

OK: Waveform as shown.

Fig 3: Identifying Signal Waveform

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TELEVISION DISPLAY

Item	Content
Measurement terminal	NTSC (R27-11) - Body ground
Measurement setting	0.2V/DIV., 10 μsec./DIV.
Condition	DVD is played on television display

NG: REPLACE TELEVISION DISPLAY

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - DISC PLAYER CHANGER)

Disconnect the M22 display connector.
Disconnect the D24 changer connector.

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

Standard resistance

MULTI-DISPLAY - DISC PLAYER CHANGER

Tester Connection	Condition	Specified Condition
M22-1 (NTSC) - D24-27 (NTSC)	Always	Below 1 Ω
M22-4 (SG) - D24-28 (SG)	Always	Below 1 Ω
M22-5 (SGD1) - D24-29 (SGND)	Always	Below 1 Ω
M22-1 (NTSC) - Body ground	Always	10 kΩ or higher
M22-4 (SG) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

INSPECT DISC PLAYER CHANGER

Fig 4: Identifying Disc Player Changer

Reconnect the D24 changer connector.

Check the waveform of the disc player changer using an oscilloscope.

OK: Waveform as shown.

Fig 5: Identifying Signal Waveform

DISC PLAYER CHANGER

Item	Content
Measurement terminal	NTSC (D24-27) - Body ground
Measurement setting	0.2V/DIV., 10 μsec./DIV.
Condition	DVD is played on disc player changer

NG: REPLACE DISC PLAYER CHANGER

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