TOYOTA HIGHLANDER 2001 Service Repair Manual

I34954
Multi-display
Controller
Sub-assy
(Shielded)
R31 R28
Television Display Assy
BK1(Shielded)
SLD
HPL-
HPL+
HPR-
HPR+30
29
28
27
26P
LG
SB
BR BR W G20
16
17
18
19 26 27 28 29 30
SLD1
HPL-
HPL+
HPR-
HPR+ BK1
BK1
BK1 BK1
R31
R31
R31
R31 05-1732
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
1922 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SOUND SIGNAL CIRCUIT (TO TELEVISION DISPLAY ASSY
(WIRELESS HEADPHONE))
CIRCUIT DESCRIPTION
This is the sound signal circuit from the television display assy to the multi-display controller sub-assy.
WIRING DIAGRAM
05CF7-03

I37217
Multi-display Controller Sub-assy:
R28
Television Display Assy:
HPL+
SLD1
HRL+HPR-HPL-
HRL+ HPL-
HPR-
HPL+
R31
SLD
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
05-1733
1923 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR(MULTI-DISPLA Y CONTROLLER
SUB-ASSY - TELEVISION DISPLAY ASSY)
(a) Disconnect the connector from the multi-display control-
ler sub-assy and television display assy.
(b) Measure the resistance according to the values in the
table below.
Standard:
Tester connectionConditionSpecified condition
SLD - SLD1AlwaysBelow 1 W
HPL- - HPL-AlwaysBelow 1 W
HPL+ - HPL+AlwaysBelow 1 W
HPR- - HPR-AlwaysBelow 1 W
HPR+ - HPR+AlwaysBelow 1 W
HPL- - Body groundAlways10 kW or higher
HPL+ - Body groundAlways10 kW or higher
HPR- - Body groundAlways10 kW or higher
HPR+ - Body groundAlways10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK

I35265
HPR-HPL-
SLD1
HPL+ HPR+
Multi-display Controller Sub-assy:
R31
05-1734
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
1924 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
2 INSPECT MULTI-DISPLA Y CONTROLLER SUB-ASSY
(a) Connect the connector.
(b) Using an oscilloscope, check the signal waveform be-
tween the terminals according to the conditions, as
shown in the chart.
Standard:
Tester connectionConditionSpecified condition
HPL- - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
HPL+ - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
HPR- - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
HPR+ - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
NG REPLACE MULTI-DISPLA Y CONTROLLER
SUB-ASSY (See page 67-23)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(See page 05-1704)

I34955
(Shielded)Multi-display
Controller
Sub-assy
(Shielded) R28
Television Display Assy
BK1
SG4
AL-
AR-
AL+
AR+ 10
14
12
13
11G
W
R
BG
W
R
B 10
14
12
13
116
R31
2
4
3
5 SGND
AL-
AR-
AL+
AR+BK1
BK1
BK1
BK1R31
R31
R31
R31
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
05-1735
1925 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SOUND SIGNAL CIRCUIT (FROM TELEVISION DISPLAY ASSY)
CIRCUIT DESCRIPTION
This is the sound signal circuit from the television display assy to the multi-display controller sub-assy.
WIRING DIAGRAM
05CF8-02

I37217
Multi-display Controller Sub-assy:
R31
Television Display Assy:
R28
AL-
AL+
AR+ AR-SGND
AL-
AL+
AR- AR+ SG4
05-1736
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
1926 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR(TELEVISION DISPLAY ASSY -
MULTI-DISPLA Y CONTROLLER SUB-ASSY)
(a) Disconnect the connector from the television display assy
and multi-display controller sub-assy.
(b) Measure the resistance according to the values in the
table below.
Standard:
Tester connectionConditionSpecified condition
SGND - SG4AlwaysBelow 1 W
AL- - AL-AlwaysBelow 1 W
AR- - AR-AlwaysBelow 1 W
AL+ - AL+AlwaysBelow 1 W
AR+ - AR+AlwaysBelow 1 W
AL- - Body groundAlways10 kW or higher
AR- - Body groundAlways10 kW or higher
AL+ - Body groundAlways10 kW or higher
AR+ - Body groundAlways10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK

I37213
AR-
AL+
AL-
AR+
R28
Television Display Assy:
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
05-1737
1927 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
2 INSPECT TELEVISION DISPLAY ASSY
(a) Connect the connector.
(b) Using an oscilloscope, check the signal waveform be-
tween the terminals according to the conditions, as
shown in the chart.
Standard:
Tester connectionConditionSpecified condition
AL- - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
AR- - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
AL+ - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
AR+ - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
NG REPLACE TELEVISION DISPLAY ASSY
(See page 67-26)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(See page 05-1704)

I34946
(Shielded)Multi-display
Controller
Sub-assy
(Shielded)R30 R28
Television Display Assy
BK1
R2
G2
B2
SYN2 VR2
VG2 G
W
R
Y
B G
W
R
Y
B13
14
15
17
16
18 R
G
B
SYNCVR
VG22
21
20
18
19
1717 18
19 20 21
22
BK1
BK1
BK1
BK1
BK1R30
R30
R30
R30
R30 05-1738
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
1928 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DISPLAY SIGNAL CIRCUIT (TO TELEVISION DISPLAY ASSY)
CIRCUIT DESCRIPTION
This is the display signal circuit from the multi-display controller sub-assy to the television display assy.
WIRING DIAGRAM
05CF9-02

I37216
Multi-display Controller Sub-assy:
R30
Television Display Assy:
R28
VR
VG
B SYNC R
G
VR2
VG2
B2 SYN2R2
G2
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
05-1739
1929 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR(TELEVISION DISPLAY ASSY -
MULTI-DISPLA Y CONTROLLER SUB-ASSY)
(a) Disconnect the connector from the television display assy
and multi-display controller sub-assy.
(b) Measure the resistance according to the values in the
table below.
Standard:
Tester connectionConditionSpecified condition
R - R2AlwaysBelow 1 W
G - G2AlwaysBelow 1 W
B - B2AlwaysBelow 1 W
SYNC - SYN2AlwaysBelow 1 W
VR - VR2AlwaysBelow 1 W
VG - VG2AlwaysBelow 1 W
R - Body groundAlways10 kW or higher
G - Body groundAlways10 kW or higher
B - Body groundAlways10 kW or higher
SYNC - Body groundAlways10 kW or higher
VR - Body groundAlways10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(See page 05-1704)

I34949
Multi-display Controller
Sub-assy
R31 R28
Television Display Assy
BK1
SGN2 9
8
10 16 32 31
(Shielded)G
R BR
32 31
16NTS2
SG9 (Shielded)Y S. GND
NTSC
SGBK1
BK1R31
R31 05-1740
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
1930 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DISPLAY SIGNAL CIRCUIT (FROM TELEVISION DISPLAY ASSY)
CIRCUIT DESCRIPTION
This is the display signal circuit from the television display assy to the multi-display controller sub-assy.
WIRING DIAGRAM
05CFA-02

I37217
Multi-display Controller Sub-assy:
Television Display Assy:SGN2
SG9
NTS2
S. GND NTSC SG
R31
R28
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
05-1741
1931 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR(TELEVISION DISPLAY ASSY -
MULTI-DISPLA Y CONTROLLER SUB-ASSY)
(a) Disconnect the connector from the television display assy
and multi-display controller sub-assy.
(b) Measure the resistance according to the values in the
table below.
Standard:
Tester connectionConditionSpecified condition
S. GND - SGN2AlwaysBelow 1 W
NTSC - NTS2AlwaysBelow 1 W
SG - SG9AlwaysBelow 1 W
NTSC - Body groundAlways10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(See page 05-1704)