2001 TOYOTA SEQUOIA Service Repair Manual

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Page 2289 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DIDAZ±01
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2087
2281 Author: Date:
2005 SEQUOIA (RM1146U)
PROBLEM SYMPTOMS TABLE
TELEVISION DISPLAY ASSY
SymptomSuspect AreaSee page
Black screen.

DIDAZ±01
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2087
2281 Author: Date:
2005 SEQUOIA (RM1146U)
PROBLEM SYMPTOMS TABLE
TELEVISION DISPLAY ASSY
SymptomSuspect AreaSee page
Black screen.
1. Power source circuit (multi±display controller sub±assy)
2. Power source circuit (television display assy)
3. AVC±LAN circuitDI±2110
DI±2107
DI±2139
Display screen not stabilized (Synchronous error).
1. Power source circuit (television display assy)
2. Power source circuit (multi±display controller sub±assy)
3. Display signal circuit (multi±display controller sub±assy
± television display assy)
4. Television display assy
5. Multi±display controller sub±assyDI±2107
DI±2110
DI±2115
±
±
Color on display screen is unusual (RGB signal error).
1. Rear display color bar check of display check mode
2. Display signal circuit (multi±display controller sub±assy
± television display assy)
3. Television display assy
4. Multi±display controller sub±assyDI±2085
DI±2115
±
±
DISC PLAYER CONTROLLER
SymptomSuspect AreaSee page
Only DVD screen is not displayed or not stabilized.
1. Power source circuit (multi±display controller sub±assy)
2. Power source circuit (disc player controller)
3. Display signal circuit (multi±display controller sub±assy
± disc player controller)
4. Display signal circuit (multi±display controller sub±assy
± radio and navigation assy)
5. Disc player controller
6. Multi±display controller sub±assyDI±2110
DI±2112
DI±2117
DI±2119
±
±
Only DVD is not heard or the sound quality is poor.
1. Power source circuit (multi±display controller sub±assy)
2. Power source circuit (disc player controller)
3. Sound signal circuit (multi±display controller sub±assy ±
disc player controller)
4. w/o Navigation system:
Sound signal circuit (multi±display controller sub±assy ±
radio receiver assy)
w/ Navigation:
Sound signal circuit (multi±display controller sub±assy ±
radio and navigation assy)
5. Mute signal circuit
6. Multi±display controller sub±assy
7. Disc player controllerDI±2110
DI±2112
DI±2137
DI±2123
DI±2125
DI±2153
±
±
VTR TERMINAL
SymptomSuspect AreaSee page
Only display screen input from the external device is not stabi-
lized.
1. Power source circuit (multi±display controller sub±assy)
2. Power source circuit (television display assy)
3. Display signal circuit (multi±display controller sub±assy
± television display assy)
4. VTR terminal
5. Multi±display controller sub±assyDI±2110
DI±2107
DI±2115
±
±

Page 2290 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±2088
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2282 Author: Date:
2005 SEQUOIA (RM1146U) Only sound quality input from the external device is poor or no
sound can be heard.
1. Power source

DI±2088
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2282 Author: Date:
2005 SEQUOIA (RM1146U) Only sound quality input from the external device is poor or no
sound can be heard.
1. Power source circuit (multi±display controller sub±assy)
2. Power source circuit (television display assy)
3. Sound signal circuit (multi±display controller sub±assy ±
VTR terminal)
4. VTR terminal
5. Multi±display controller sub±assyDI±2110
DI±2107
DI±2131
±
±
The operation the external device cannot be performed
1. Power source circuit (multi±display controller sub±assy)
2. Power source circuit (television display assy)
3. VTR terminal set signal circuit
4. VTR terminal
5. Multi±display controller sub±assyDI±2110
DI±2107
DI±2155
±
±
RSE SYSTEM
SymptomSuspect AreaSee page
Quality of sound from wireless headphone is poor or no sound
can be heard (all sound).
1. Power source circuit (multi±display controller sub±assy)
2. Power source circuit (television display assy)
3. Sound signal circuit (multi±display controller sub±assy ±
television display assy)
4. Mute signal circuit (radio receiver assy ± multi±display
controller sub±assy)
5. Mute signal circuit (disc player controller ± multi±display
controller sub±assy)
6. Multi±display controller sub±assy
7. Television display assyDI±2110
DI±2107
DI±2135
DI±2147
DI±2153
±
±
Quality of sound from headphone connected to headphone termi-
nal is poor or no sound can be heard (all sound).
1. Power source circuit (multi±display controller sub±assy)
2. Power source circuit (television display assy)
3. Sound signal circuit (multi±display controller sub±assy ±
headphone terminal)
4. Mute signal circuit
5. Multi±display controller sub±assy
6. Television display assyDI±2110
DI±2107
DI±2133
DI±2147
±
±
Quality of sound from wireless headphone is poor or no sound
can be heard (DVD sound only).
1. Power source circuit (disc player controller)
2. Sound signal circuit (multi±display controller sub±assy ±
disc player controller)
3. Disc player controller
4. Multi±display controller sub±assyDI±2112
DI±2137
±
±
Quality of sound from headphone connected is poor or no sound
can be heard (DVD sound only).
1. Power source circuit (disc player controller)
2. Sound signal circuit (multi±display controller sub±assy ±
disc player controller)
3. Disc player controller
4. Multi±display controller sub±assyDI±2112
DI±2137
±
±

Page 2291 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2089
2283 Author: Date:
2005 SEQUOIA (RM1146U) Quality of sound from wireless headphone is poor or no sound
can be heard (radio sound only).
1. w/o

Page 2292 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DIDB0±01
I28662
R23
R22R21
DI±2090
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2284 Author: Date:
2005 SEQUOIA (RM1146U)
TERMINALS OF ECU
1. MULTI±DISPLAY CONTROLLER SUB±ASSY
Symbols (Termina

Page 2293 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2091
2285 Author: Date:
2005 SEQUOIA (RM1146U)R±L± ± GND
(R23±23 ± R23±29)
W ± YSound signal (Input)RSE system is playing
A waveform
synchro

± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2091
2285 Author: Date:
2005 SEQUOIA (RM1146U)R±L± ± GND
(R23±23 ± R23±29)
W ± YSound signal (Input)RSE system is playing
A waveform
synchronized
with sound is
output
R±L+ ± GND
(R23±24 ± R23±29)W ± YSound signal (Input)RSE system is playing
A waveform
synchronized
with sound is
output
R±R± ± GND
(R23±25 ± R23±29)W ± YSound signal (Input)RSE system is playing
A waveform
synchronized
with sound is
output
R±R+ ± GND
(R23±26 ± R23±29)W ± YSound signal (Input)RSE system is playing
A waveform
synchronized
with sound is
output
SG2 ± Body ground
(R23±27 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V
RMUT ± GND
(R23±28 ± R23±29)LG ± YMute signalAudio source is changingBelow 1 V
GND ± Body ground
(R23±29 ± Body ground)Y ± Body groundGroundAlwaysBelow 1 V
TX± ± GND
(R23±30 ± R23±29)LG ± YAVC±LAN
communication signalIgnition switch ACC2 to 3 V
TX+ ± GND
(R23±31 ± R23±29)LG ± YAVC±LAN
communication signalIgnition switch ACC2 to 3 V
ACC ± GND
(R23±32 ± R23±29)LG ± YIgnition (ACC)Ignition switch in the ACC position10 to 14 V
MUTE ± GND
(R22±1 ± R23±29)LG ± YMute signalDisc player controller is changingBelow 1 V
AL± ± GND
(R22±2 ± R23±29)W ± YSound signal (Input)DVD system is playing
A waveform
synchronized
with sound is
output
AL+ ± GND
(R22±3 ± R23±29)W ± YSound signal (Input)DVD system is playing
A waveform
synchronized
with sound is
output
AR± ± GND
(R22±4 ± R23±29)W ± YSound signal (Input)DVD system is playing
A waveform
synchronized
with sound is
output
AR+ ± GND
(R22±5 ± R23±29)W ± YSound signal (Input)DVD system is playing
A waveform
synchronized
with sound is
output
SG4 ± Body ground
(R22±6 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V
NTS2 ± GND
(R22±8 ± R23±29)BR ± YDisplay signalDVD system is displayedPulse genera-
tion
SGN2 ± Body ground
(R22±9 ± Body ground)BR ± Body groundGroundAlwaysBelow 1 V
SG9 ± Body ground
(R22±10 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V
+B ± GND
(R22±11 ± R23±29)LG ± YBatteryAlways10 to 14 V

Page 2294 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±2092
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2286 Author: Date:
2005 SEQUOIA (RM1146U)ACC3 ± GND
(R22±12 ± R23±29)
LG ± YIgnition (ACC)Ignition switch in the ACC position10 to 14 V
T

DI±2092
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2286 Author: Date:
2005 SEQUOIA (RM1146U)ACC3 ± GND
(R22±12 ± R23±29)
LG ± YIgnition (ACC)Ignition switch in the ACC position10 to 14 V
TX3± ± GND
(R22±13 ± R23±29)LG ± YAVC±LAN
communication signalIgnition switch ACC2 to 3 V
TX3+ ± GND
(R22±14 ± R23±29)LG ± YAVC±LAN
communication signalIgnition switch ACC2 to 3 V
GND4 ± Body ground
(R22±15 ± Body ground)LG ± Body groundGroundAlwaysBelow 1 V
HPL± ± GND
(R22±16 ± R23±29)W ± YSound signal (Output)RSE system is playing
A waveform
synchronized
with sound is
output
HPL+ ± GND
(R22±17 ± R23±29)W ± YSound signal (Output)RSE system is playing
A waveform
synchronized
with sound is
output
HPR± ± GND
(R22±18 ± R23±29)W ± YSound signal (Output)RSE system is playing
A waveform
synchronized
with sound is
output
HPR+ ± GND
(R22±19 ± R23±29)W ± YSound signal (Output)RSE system is playing
A waveform
synchronized
with sound is
output
SLD1 ± Body ground
(R22±20 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V
+B2 ± GND
(R21±1 ± R23±29)Y ± YBatteryAlways10 to 14 V
ACC2 ± GND
(R21±2 ± R23±29)LG ± YIgnition (ACC)Ignition switch in the ACC position10 to 14 V
GAUX ± GND
(R21±3 ± R23±29)LG ± YGroundExternal device system is playing
(At that time of VTR jack use)
A waveform
synchronized
with sound is
output
TX2± ± GND
(R21±4 ± R23±29)LG ± YAVC±LAN
communication signalIgnition switch ACC2 to 3 V
TX2+ ± GND
(R21±5 ± R23±29)LG ± YAVC±LAN
communication signalIgnition switch ACC2 to 3 V
GND1 ± Body ground
(R21±6 ± Body ground)Y ± Body groundGroundAlwaysBelow 1 V
SG5 ± Body ground
(R21±7 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V
HP1L ± GND
(R21±8 ± R23±29)BR ± YSound signal (Input)External device system is playing
(At that time of VTR jack use)
A waveform
synchronized
with sound is
output
HP1R ± GND
(R21±9 ± R23±29)BR ± YSound signal (Input)External device system is playing
(At that time of VTR jack use)
A waveform
synchronized
with sound is
output
SG7 ± Body ground
(R21±10 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V
AUXL ± GND
(R21±11 ± R23±29)BR ± YSound signalExternal device system is playing
(At that time of VTR jack use)
A waveform
synchronized
with sound is
output

Page 2295 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual I28286
R25
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2093
2287 Author: Date:
2005 SEQUOIA (RM1146U)AUXR ± GND
(R21±12 ± R23±29)
BR ± YSound signalExternal device system is playing
(At

Page 2296 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual I28287
D23
DI±2094
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2288 Author: Date:
2005 SEQUOIA (RM1146U)R+ ± GND
(R25±3 ± R25±1)
W ± YSound signal (Input)RSE system is sounding (Head-
phone

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