2001 TOYOTA SEQUOIA battery

DI±2076
± DIAGNOSTICSREAR SEAT AUDIO SYSTEM
2270 Author: Date:
2005 SEQUOIA (RM1146U)
Remote control system does not operate
INSPECTION PROCEDURE
1 Check malfunction symptoms.
CHECK:
Check obstruction.
Check that there are no obstructions between the switch assy and the infrared ray light emission por-
tion of the rear seat audio controller.
OK:
No obstructions
NG Remove the obstructions.
OK
2 Check battery (Switch assy).
CHECK:
Check battery.
Check that the dry±cell battery used for the switch assy is not dead.
OK:
It is not dead.
NG Replace dry±cell battery.
OK
DIDAR±01

DIDAS±01
DI±2078
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2272 Author: Date:
2005 SEQUOIA (RM1146U)
REAR SEAT ENTERTAINMANT SYSTEM
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System NameSee Page
Back Door Power Window Control SystemBE±77

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 (Terminals No.)Wiring ColorTerminal DescriptionConditionSpecification
L± ± GND
(R23±7 ± R23±29)W ± YSound signal (Output)DVD system is playing
A waveform
synchronized
with sound is
output
L+ ± GND
(R23±8 ± R23±29)W ± YSound signal (Output)DVD system is playing
A waveform
synchronized
with sound is
output
R± ± GND
(R23±9 ± R23±29)W ± YSound signal (Output)DVD system is playing
A waveform
synchronized
with sound is
output
R+ ± GND
(R23±10 ± R23±29)W ± YSound signal (Output)DVD system is playing
A waveform
synchronized
with sound is
output
SG1 ± Body ground
(R23±11 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V
LMUT ± GND
(R23±12 ± R23±29)LG ± YMute signalDisc player controller is sounding
" changing modeAbove 3.5 V "
Below 1 V
+B1 ± GND
(R23±16 ± R23±29)Y ± YBatteryAlways10 to 14 V
(*1) SG3 ± Body ground
(R23±19 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V
(*1) SGN1 ± Body ground
(R23±20 ± Body ground)BR ± Body groundGroundAlwaysBelow 1 V
(*1) NTS1 ± GND
(R23±21 ± R23±29)BR ± YDisplay signalDVD system is displayedPulse genera-
tion

± 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

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

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)
A waveform
synchronized
with sound is
output
R± ± GND
(R25±4 ± R25±1)W ± YSound signal (Input)RSE system is sounding (Head-
phone)
A waveform
synchronized
with sound is
output
L+ ± GND
(R25±5 ± R25±1)W ± YSound signal (Input)RSE system is sounding (Head-
phone)
A waveform
synchronized
with sound is
output
L± ± GND
(R25±6 ± R25±1)W ± YSound signal (Input)RSE system is sounding (Head-
phone)
A waveform
synchronized
with sound is
output
ACC ± GND
(R25±7 ± R25±1)LG ± YIgnition (ACC)Ignition switch ACC10 to 14 V
BU+B ± GND
(R25±8 ± R25±1)Y ± YBatteryAlways10 to 14 V
TX+ ± GND
(R25±9 ± R25±1)LG ± YAVC±LAN
communication signalIgnition switch ACC2 to 3 V
TX± ± GND
(R25±10 ± R25±1)LG ± YAVC±LAN
communication signalIgnition switch ACC2 to 3 V
VG ± Body ground
(R25±11 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V
VR ± Body ground
(R25±12 ± Body ground)B ± Body groundGroundAlwaysBelow 1 V
SYNC ± VR
(R25±13 ± R25±12)B ± BDisplay signal
(Synchronize)Rear display is displayedPulse genera-
tion
B ± VR
(R25±14 ± R25±12)B ± BDisplay signal (Blue)Rear display is displayedPulse genera-
tion
G ± VR
(R25±15 ± R25±12)B ± BDisplay signal (Green)Rear display is displayedPulse genera-
tion
R ± VR
(R25±16 ± R25±12)B ± BDisplay signal (Red)Rear display is displayedPulse genera-
tion
3. DISC PLAYER CONTROLLER
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSpecification
SLD ± Body ground
(D23±1 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V
S.GND ± Body ground
(D23±2 ± Body ground)BR ± Body groundGroundAlwaysBelow 1 V

I28323
H10
H11
Headphone Terminal LH
Headphone Terminal RH
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2095
2289 Author: Date:
2005 SEQUOIA (RM1146U)NTSC ± GND
(D23±3 ± D23±16)
BR ± LGDisplay signal (Output)Rear display is displayed (DVD)Pulse genera-
tion
SLD ± Body ground
(D23±5 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 W
R+ ± GND
(D23±6 ± D23±16)W ± LGSound signal (Output)DVD system is sounding
A waveform
synchronized
with sound is
output
R± ± GND
(D23±7 ± D23±16)W ± LGSound signal (Output)DVD system is sounding
A waveform
synchronized
with sound is
output
L+ ± GND
(D23±8 ± D23±16)W ± LGSound signal (Output)DVD system is sounding
A waveform
synchronized
with sound is
output
L± ± GND
(D23±9 ± D23±16)W ± LGSound signal (Output)DVD system is sounding
A waveform
synchronized
with sound is
output
MUTE ± GND
(D23±10 ± D23±16)LG ± LGMute signalDVD system is soundingBelow 1 V
GND ± Body ground
(D23±16 ± Body ground)LG ± Body groundGroundAlwaysBelow 1 V
TX+ ± GND
(D23±17 ± D23±16)LG ± LGAVC±LAN
communication signalIgnition switch ACC2 to 3 V
TX± ± GND
(D23±18 ± D23±16)LG ± LGAVC±LAN
communication signalIgnition switch ACC2 to 3 V
ACC ± GND
(D23±19 ± D23±16)LG ± LGIgnition (ACC)Ignition switch ACC10 to 14 V
+B ± GND
(D23±20 ± D23±16)LG ± LGBatteryAlways10 to 14 V
4. HEADPHONE TERMINAL
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSpecification
HPR ± SGND
(H10±1 ± H10±3)BR ± ShieldedSound signal (Input)External device system sounding
(At that time of VTR jack use)
A waveform
synchronized
with sound is
output
HPL ± SGND
(H10±2 ± H10±3)BR ± ShieldedSound signal (Input)External device system sounding
(At that time of VTR jack use)
A waveform
synchronized
with sound is
output
SGND ± Body ground
(H10±3 ± Body ground)Shielded ± Body groundGroundAlwaysBelow 1 V

DIDB3±01
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2103
2297 Author: Date:
2005 SEQUOIA (RM1146U)
DIAGNOSTIC TROUBLE CODE CHART
TermsMeaning
Physical addressThree±digit code (shown in hexadecimal) which is given to each component com-
prising the AVC±LAN.
Corresponding to the function, individual symbols are specified.
Logical addressTwo±digit code (shown in hexadecimal) which is given to each function comprising
the inner system of the AVC±LAN.
HINT:
DTC of the device which is directly connected via AVC±LAN, is displayed on the ºaudio system or navigation
systemº and the ºtelevision display assyº respectively.
Titles for each unit are stated in the following order: parts name (physical address) [Name indicated by DTC]
1. MULTI±DISPLAY CONTROLLER SUB±ASSY (Physical address: 16C, 16D) [RSE±ECU]
HINT:

*1: Even if no failure is detected, this code may be stored depending on the battery condition or voltage
for starting the engine.

*2: This code is stored 180 seconds after the power supply connector is disconnected after engine
start.

*3: This code may be stored when the engine key is turned back to the ON position and then turned
again to the START position after engine start.

*4: This code may be stored when the engine key is turned back to the ON position and then turned
again to the START position in 1 minute after engine start.
(a) Logical address: 01 (Communication control)
DTCNameDiagnosisVerificationSee page
D8
*2No Response To Connection
CheckComponent shown by sub±code is or had been
disconnected from system after engine start.
1. Power source circuit (Television
display assy).
2. Power source circuit (Disc play-
er controller).
3. AVC±LAN circuit.
4. Replace television display assy.
5. Replace disc player controller.DI±2107
DI±2112
DI±2139
±
±
D9
*1Last Mode Error
Component operated (sound and/or image was
provided) before engine stop is or was discon-
nected with ignition switch in the ACC or ON posi-
tion.
1. Power source circuit (Television
display assy).
2. Power source circuit (Disc play-
er controller).
3. AVC±LAN circuit
4. Replace television display assy.
5. Replace disc player controller.DI±2107
DI±2112
DI±2139
±
±
DANo Response to ON/OFF
Instruction
No response is identified when changing mode
(audio and visual mode change).
Detected when sound and picture do not change
by button operation.
1. Power source circuit (Television
display assy).
2. Power source circuit (Disc play-
er controller).
3. AVC±LAN circuit
4. Replace television display assy.
5. Replace disc player controller.DI±2107
DI±2112
DI±2139
±
±
DB
*1Mode Status ErrorDual alarm is detected.
1. Power source circuit (Television
display assy).
2. Power source circuit (Disc play-
er controller).
3. AVC±LAN circuit
4. Replace television display assy.
5. Replace disc player controller.DI±2107
DI±2112
DI±2139
±
±