TOYOTA HIGHLANDER 2001 Service Repair Manual
Manufacturer: TOYOTA, Model Year: 2001, Model line: HIGHLANDER, Model: TOYOTA HIGHLANDER 2001Pages: 2572, PDF Size: 34.8 MB
Page 1971 of 2572
I34951
R28
Television Display AssyMulti-display Controller
Sub-assy
R311
BK115
15VL
MUTEMUTE 05-1722
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
1912 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
MUTE SIGNAL CIRCUIT (FROM TELEVISION DISPLAY ASSY)
CIRCUIT DESCRIPTION
The multi-display controller sub-assy controls the volume according to the MUTE signal from the television
display assy.
The MUTE signal is sent to reduce noise and a popping sound when modes, etc. are switched.
WIRING DIAGRAM
05CF3-02
Page 1972 of 2572
I37212
R28
Television Display Assy:
MUTE
I35962I34943
R31
MUTE
Multi-display Controller Sub-assy:
I37213
MUTER28
Television Display Assy:
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
05-1723
1913 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
MUTE - MUTEAlwaysBelow 1 W
MUTE - Body groundAlways10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
2 INSPECT TELEVISION DISPLAY ASSY
(a) Connect the television display assy connector.
(b) Measure the voltage according to the values in the table
below.
Standard:
Tester connectionConditionSpecified condition
MUTE - Body groundDVD system soundingApprox. 3.5 V
MUTE - Body groundDVD system changingBelow 1.0 V
NG REPLACE TELEVISION DISPLAY ASSY
(SEE PAGE 67-26)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(SEE PAGE 05-1704)
Page 1973 of 2572
I34952
R23R29 IP1
BR
SB
LG
PBW R G (Shielded) (Shielded)18
17
16
15
1427
23
24
25
26 15 16 17 1814
SLD1
RSL-
RSL+
RSR-
RSR+SG2
R-L-
R-L+
R-R-
R-R+ Radio Receiver AssyMulti-display Controller
Sub-assy
R23
R23
R23
R23R29
R29
R29
R29 IP1
IP1
IP1
IP1 05-1724
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
1914 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SOUND SIGNAL CIRCUIT (FROM RADIO RECEIVER ASSY)
CIRCUIT DESCRIPTION
This is the sound signal circuit from the radio receiver assy to the multi-display controller sub-assy.
WIRING DIAGRAM
05CF4-03
Page 1974 of 2572
I40203
Radio Receiver Assy:
R23
RSL-
RSL+
RSR-RSR+
SLD1
I34639
Multi-display Controller Sub-assy:
R29
R-L-
R-L+
R-R-
R-R+ SG2
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
05-1725
1915 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR(RADIO RECEIVER ASSY - MULTI-DISPLA Y
CONTROLLER SUB-ASSY)
(a) Disconnect the connector from the radio receiver assy
and multi-display controller sub-assy.
(b) Measure the resistance according to the values in the
table below.
Standard:
Tester connectionConditionSpecified condition
SLD1 - SG2AlwaysBelow 1 W
RSL- - R-L-AlwaysBelow 1 W
RSL+ - R-L+AlwaysBelow 1 W
RSR- - R-R-AlwaysBelow 1 W
RSR+ - R-R+AlwaysBelow 1 W
RSL- - Body groundAlways10 kW or higher
RSL+ - Body groundAlways10 kW or higher
RSR- - Body groundAlways10 kW or higher
RSR+ - Body groundAlways10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
Page 1975 of 2572
I40577
RSL-
RSL+RSR-RSR+
R23Radio Receiver Assy:
05-1726
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
1916 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
2 INSPECT RADIO RECEIVER 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
RSL- - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
RSL+ - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
RSR- - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
RSR+ - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
NG REPLACE RADIO RECEIVER ASSY
(SEE PAGE 67-6)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(See page 05-1704)
Page 1976 of 2572
I34948
V13
Video (Video Adapter) Terminal
(Shielded)Multi-display Controller
Sub-assy
10
R30 SGND
AUXR
AUXL11 12
Y
BR
AUXL AUXR SG7
3
1
2R30
R30
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
05-1727
1917 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SOUND SIGNAL CIRCUIT (FROM VIDEO (VIDEO ADAPTER)
TERMINAL)
CIRCUIT DESCRIPTION
This is the sound signal circuit from the video (video adapter) terminal to the multi-display controller sub-
assy.
WIRING DIAGRAM
05CF5-02
Page 1977 of 2572
I40833
Multi-display Controller Sub-assy:
R30
Video (Video Adapter) Terminal:
SGNDAUXL
AUXR
AUXR
AUXL
SG7
V13
I37215
AUXR AUXL
Video (Video Adapter) Terminal:
V13
05-1728
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
1918 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR(MULTI-DISPLA Y CONTROLLER
SUB-ASSY - VIDEO(VIDEO ADAPTER)TERMINAL)
(a) Disconnect the connector from the video (video adapter)
terminal and multi-display controller sub-assy.
(b) Measure the resistance according to the values in the
table below.
Standard:
Tester connectionConditionSpecified condition
SGND - SG7AlwaysBelow 1 W
AUXR - AUXRAlwaysBelow 1 W
AUXL - AUXLAlwaysBelow 1 W
AUXR - Body groundAlways10 kW or higher
AUXL - Body groundAlways10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
2 INSPECT VIDEO(VIDEO ADAPTER) TERMINAL
(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.
HINT:
External device system is playing (When the video (video
adapter) terminal is used).
Standard:
Tester connectionConditionSpecified condition
AUXR - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
AUXL - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
NG REPLACE VIDEO(VIDEO ADAPTER) TERMINAL
(See page 67-27)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
(See page 05-1704)
Page 1978 of 2572
I34953
(Shielded)Multi-display
Controller
Sub-assy
(Shielded) (Shielded) (Shielded)
GND1
HP2L
HP2R
GND
HP1R
HP1LSG5 SG6 R3019
20
21
7
9
8 BR
Y
R
G L
P 25
24
23
9
7
8 R28
Television Display Assy
BR
YHP2L
HP2R
HP1R
HP1L BK1
8 7 9 23 24 25
BK1
BK1
BK1
BK1
BK1R30
R30
R30
R30
R30
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
05-1729
1919 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
SOUND SIGNAL CIRCUIT (TO TELEVISION DISPLAY ASSY
(HEADPHONE))
CIRCUIT DESCRIPTION
This is the sound signal circuit from the multi-display controller sub-assy to the television display assy.
WIRING DIAGRAM
05CF6-03
Page 1979 of 2572
I37216
Multi-display Controller Sub-assy:
R30
Television Display Assy:
HP1L
GND
HP2L GND1
HP2RHP1R
HP2L HP1R
HP2R
HP1L
SG5
SG6 R28
05-1730
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
1920 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 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
GND1 - SG6AlwaysBelow 1 W
HP2L - HP2LAlwaysBelow 1 W
HP2R - HP2RAlwaysBelow 1 W
GND - SG5AlwaysBelow 1 W
HP1R - HP1RAlwaysBelow 1 W
HP1L - HP1LAlwaysBelow 1 W
HP2L - Body groundAlways10 kW or higher
HP2R - Body groundAlways10 kW or higher
HP1R - Body groundAlways10 kW or higher
HP1L - Body groundAlways10 kW or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
Page 1980 of 2572
I35265
SG6SG5 HP1L
HP1R
HP2L HP2R
R30
Multi-display Controller Sub-assy:
- DIAGNOSTICSREAR SEAT ENTERTAINMENT SYSTEM
05-1731
1921 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
HP2L - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
HP2R - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
HP1R - Body groundWhile voice sound is being producedA waveform synchronized with sound is output
HP1L - 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)