key TOYOTA SEQUOIA 2001 Service Manual PDF

I18742
Body ECU
IEW±BIND 12
A17
BR
J8
J/CGR 9
1F 1D6
C6C5 Combination Meter
16
B5 Security Instrument Panel J/B
± DIAGNOSTICSBODY CONTROL SYSTEM
DI±1731
1925 Author: Date:
2005 SEQUOIA (RM1146U)
Theft deterrent indicator circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is preparing to set, this circuit turns on the indicator light. When the system
has been set, it continually turns the indicator light on for 1 second and turns it off for 1 second, and thus
blinking the indicator light.
This theft deterrent indicator sends a key judgment of the immobilizer to the transponder key ECU.
WIRING DIAGRAM
DI579±09

I28523
Back Door ECU
Sub J/B No. 3 ILE
B118
BF18
BD29
WWWW
J30J/C
J29 FMInstrument Panel J/BBody ECU
1G6
1G5
1M10
1E3
1G13
1G14
1E81M6
1J5ILE B73
1F 10
1M7W
3C
3A3A
3D6 6
16 6I17
Ignition Key
Cylinder Light
12W
R
R6R
J48R
J/C
J49
BC1 LF R
D13 Door Courtesy
Light Rear RH
12
D17 Door Courtesy
Light Switch Rear RH2 1
W±B
BA161
2
2
IN1R
A AJ21
J/C R
R 1B±O
2 1 D8 Diode
(Interior Light No. 1)BC17
R±YR±YW±B RW±B W±BRRRW (*1)
W (*2)
W
R
12 S8 Step Light
V7 Vanity Light RH
V6 Vanity Light LH
R11 Rear Interior Light
(*4) (*3) To Dome Fuse
W±B
W±B
W
G±R(*2)
(*2)
(*2) 1
2
4
de f g bc aR
(*2)
3ON
DoorOFF R
R DI±1760
± DIAGNOSTICSBODY CONTROL SYSTEM
1954 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM
(*1): w/o Sliding Roof, RSE and RSA
(*2): w/ Sliding Roof, RSE or RSA
(*3): w/ Sliding Roof w/ RSE or RSA
(*4): w/ Sliding Roof w/o RSE and RSA

DIDEK±01
I28584
From
Battery
From
Ignition Switch To Rear
Power Window
SW RH PWR No. 3
Power Main
Driver Door ECU
(Power Window Master Switch)To Rear
Power Window
SW LH PWR No. 4From
Battery From
Battery
ECU±IG
PWR No.1
ECU±B IG +BSIG
BDR
CPUB
CPU
Window
Lock
Switch WLSW
MPX1
GND
MPX2 Passenger
Door ECU
Body ECUDriver Door Power Window Motor
DOWN
UP
Pulse Sensor
Limit Switch DU
DDN
PLS
LMT
SGND
CTYB
Driver Side Door
Courtesy LightRemote Control Mirror LH
DM+R
DMHR
DMVRLEFT
RIGHT
DOWN UP
DVC
VSSR
HSSR
LE1 LSWD
KL
KUL
BEAN Door Unlock
Detection Switch
Door Key Lock and
Unlock Switch
LSWEDOWN
UPOUT
IN PCYLEngine Room J/B
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
DI±1779
1973 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DIAGRAM

DI1PC±06
DI±1782
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
1976 Author: Date:
2005 SEQUOIA (RM1146U)
PROBLEM SYMPTOMS TABLE
POWER WINDOW CONTROL SYSTEM
SymptomSuspected AreaSee page
All the power windows do not operate.
4. Power source circuit
5. Window lock switch circuit
6. Body ECUDI±1788
DI±1805
IN±35
Power window does not operate.
1. Power source circuit
2. Power window motor circuit
3. Window lock switch circuit
4. Driver door ECUDI±1788
DI±1798
DI±1805
IN±35
Auto up (or down) function does not operate.1. Power source circuit
2. Driver door ECUDI±1788
IN±35
Jam protection function and auto up (or down) function do not
operate.1. Jam protection limit switch circuit
2. Jam protection pulse sensor circuit
3. Driver door ECUDI±1800
DI±1803
IN±35
OTHER
SymptomSuspected AreaSee page
Door parts do not function.1. Power source circuit
2. Driver door ECUDI±1788
IN±35
Door key related function does not operate.1. Door key lock and unlock switch circuit
2. Driver door ECUDI±1794
IN±35
Courtesy light does not come on.
(driver's)1. Door courtesy light circuit
2. Driver door ECUDI±1796
IN±35
Remote control mirror LH does not operate.
(w/ Driving position memory)1. Remote control mirror motor LH circuit
2. Remote control mirror position sensor LH circuit
3. Driver door ECUDI±1808
DI±1810
IN±35
Door lock control does not operate.
1. Door unlock detection switch circuit
2. Door lock motor circuit
3. Driver door ECUDI±1791
DI±1720
IN±35

DI±1784
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
1978 Author: Date:
2005 SEQUOIA (RM1146U) MPX2 e ±
(8 e ±)
W±L e ±Multiplex communica-
tion lineMultiplex communication circuit±
KL e LSWE
(22 e 9)LG±B e W±BDoor key lock and un-
lock switch (LOCK)Door key lock and unlock switch LOCKBelow 1 V
KL e LSWE
(22 e 9)LG±B e W±BDoor key lock and un-
lock switch (LOCK)Door key lock and unlock switch OFF or UNLOCK10 to 14 V
KUL e LSWE
(10 e 9)LG±R e
W±BDoor key lock and un-
lock switch (UNLOCK)Door key lock and unlock switch UNLOCKBelow 1 V
KUL e LSWE
(10 e 9)LG±R e
W±BDoor key lock and un-
lock switch (UNLOCK)Door key lock and unlock switch OFF or LOCK10 to 14 V
LSWD e LSWE
(24 e 9)R±Y e W±BDoor unlock detection
switchDriver door is locked10 to 14 V
LSWD e LSWE
(24 e 9)R±Y e W±BDoor unlock detection
switchDriver door is unlockedBelow 1 V
WLSW e GND
(7 e 13)R±L e W±BWindow lock switchDriver side window lock switch position UNLOCKBelow 1 V
WLSW e GND
(7 e 13)R±L e W±BWindow lock switchDriver side window lock switch position LOCK10 to 14 V
SGND e Body Ground
(4 e Body Ground)W±B e Body
GroundGroundAlwaysBelow 1 V
LSWE e Body Ground
(9 e Body Ground)W±B e Body
GroundGroundAlwaysBelow 1 V
DM+R (*1) e GND
(15 e 13)L±W e W±BOuter mirror motorRemote control mirror is not operatedBelow 1 V
DM+R (*1) e GND
(15 e 13)L±W e W±BOuter mirror motorRemote control mirror is operated DOWN or RIGHT10 to 14 V
DMVR (*1) e GND
(17 e 13)BR±B e
W±BOuter mirror motorRemote control mirror is not operatedBelow 1 V
DMVR (*1) e GND
(17 e 13)BR±B e
W±BOuter mirror motorRemote control mirror is operated UP or RIGHT10 to 14 V
DMHR (*1) e GND
(16 e 13)BR±R e
W±BOuter mirror motorRemote control mirror is not operatedBelow 1 V
DMHR (*1) e GND
(16 e 13)BR±R e
W±BOuter mirror motorRemote control mirror is operated LEFT or DOWN10 to 14 V
DVC (*1) e LE1
(11 e 12)BR±W e L±ROuter mirror position
sensorIgnition switch OFFBelow 1 V
DVC (*1) e LE1
(11 e 12)BR±W e L±ROuter mirror position
sensorIgnition switch ON4.8 to 5.2 V
VSSR (*1) e LE1
(18 e 12)BR±Y e L±ROuter mirror position
sensorIgnition switch ON, outer mirror position full DOWN0.5 to 1.8 V
VSSR (*1) e LE1
(18 e 12)BR±Y e L±ROuter mirror position
sensorIgnition switch ON, outer mirror position full UP3.5 to 4.5 V
HSSR (*1) e LE1
(19 e 12)L±B e L±ROuter mirror position
sensorIgnition switch ON, outer mirror position full OUT0.5 to 1.8 V
HSSR (*1) e LE1
(19 e 12)L±B e L±ROuter mirror position
sensorIgnition switch ON, outer mirror position full IN3.5 to 4.5 V
*1: w/ Driving position memory

DIDEM±01
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
DI±1785
1979 Author: Date:
2005 SEQUOIA (RM1146U)
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
According to the DATA LIST displayed by the hand±held tester, you can read the value of the switch, sensor,
actuator and so on without parts removal. Reading the DATA LIST as the first step of troubleshooting is one
of the methods to shorten labor time.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) According to the display on the tester, read the DATA LIST.
D±DOOR:
ItemMeasurement Item/Dis-
play (Range)Normal ConditionDiagnostic Note
D P/W AUTO SW
Driver door power win-
dow auto SW signal/
ON or OFFON: Driver door power window auto UP/DOWN SW is ON
OFF: Driver door power window auto UP/DOWN SW is
OFF
±
P P/W AUTO SW
Driver door power win-
dow auto SW signal/
ON or OFFON: Driver door power window auto UP/DOWN SW is ON
OFF: Driver door power window auto UP/DOWN SW is
OFF
±
LIMIT SWJam protection limit SW/
ON or OFFON: Window is almost fully open
OFF: Window is open*1
LOCK POS SWLock position SW signal/
ON or OFFON: Door lock is in unlock position
OFF: Door lock is in lock position±
*1: If the jam protection limit switch is turned ON, the jam protection function will stop.
Even if the switch is not turned ON when the windows are almost fully open, the window will not fully close
as jam protection operates at upper window positions during automatic±up operation.
HINT:
The following data list can be used when the power window is operated through manual±up operation during
the ACTIVE TEST.
ItemMeasurement Item/Display (Range)Normal ConditionDiagnostic Note
GLASS POS±1/4
Detects things caught in the P/W / OK or
CAUTION
(Displayed during the active test)OK: Nothing caught in the range between
fully open and 1/4 open*2
GLASS POS±2/4
Detects things caught in the P/W / OK or
CAUTION
(Displayed during the active test)OK: Nothing caught in the range between
1/4 open and 2/4 open*2
GLASS POS±3/4
Detects things caught in the P/W / OK or
CAUTION
(Displayed during the active test)OK: Nothing caught in the range between
2/4 open and 3/4 open*2
GLASS POS±OPEN
Detects things caught in the P/W / OK or
CAUTION
(Displayed during the active test)OK: Nothing caught in the range between
3/4 open and fully open*2
HINT:
*2: If the CAUTION is displayed without applying any resistance in each range, there must be something
caught somewhere in that range.
ItemMeasurement Item/Display (Range)Normal ConditionDiagnostic Note
UP/DOOR KEY (*1)
Driver door key lock and unlock switch
linked window open and close/AVAIL or
NOT AVLAVAIL: Key±linked open and close SET
NOT AVL: Key±linked open and close UN-
SET
±
DOWN/DOOR KEY (*1)
Driver door key lock and unlock switch
linked window open and close/AVAIL or
NOT AVLAVAIL: Key±linked open and close SET
NOT AVL: Key±linked open and close UN-
SET
±

DI±1786
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
1980 Author: Date:
2005 SEQUOIA (RM1146U)
*1: When the ignition key is not in the key cylinder and the back door is locked, turning and holding the key
in the back door key cylinder in the lock position for 1.5 seconds or more activates the driver door ECU to
operate the power window motor and close the power window.
Similarly, turning and holding the key in the back door key cylinder in the unlock position for 1.5 seconds or
more when the back door is unlocked will open the power window.
ItemMeasurement Item/Display (Range)Normal ConditionDiagnostic Note
MIR POS SEN VVertical mirror position/Min.: 0, Max.: 5Within range from 0 to 5 V±
MIR POS SEN HVertical mirror position/Min.: 0, Max.: 5Within range from 0 to 5 V±
2. ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand±held tester allows the relay, actuator and so on to operate
without removal. Performing the ACTIVE TEST as the first step of troubleshooting is one of the methods to
shorten labor time.
It is possible to display the DATA LIST during the ACTIVE TEST.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) According to the display on the tester, perform the ACTIVE TEST.
D±DOOR:
ItemTest DetailsDiagnostic Note
P/W UP/DOWNDrive the P/W Motor UP/DOWN
During this ACTIVE TEST, jam protection, caught
detection can be monitored.
(Refer to the DATA LIST for details)
MIRR UP/DOWNMirror motor vertical operation UP/OFF/DOWN±
MIRR RIGHT/LEFTMirror motor horizontal operation RIGHT/OFF/
LEFT±

DI1PA±08
I28392
Power Window Master Switch
 Driver Door ECU
 Power Window Switch
 Door Lock Control Switch
 Window Lock Switch
Door Courtesy LightDoor Lock Assembly
 Door Lock Motor
 Door Unlock Detection
Switch Power Window Motor
 Pulse Sensor
 Limit Switch
Door Courtesy Light Switch
Driver door ECU is the same with power window master switch.
Door Key Lock and
Unlock Switch Remote Control Mirror
(w/ Driving Position Memory)
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
DI±1787
1981 Author: Date:
2005 SEQUOIA (RM1146U)
PARTS LOCATION

I18711
D20
Door Unlock Detection
SW Front LHD22
Driver Door ECU
LSWD
LSWE 24
9 R±Y
W±B
34
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
DI±1791
1985 Author: Date:
2005 SEQUOIA (RM1146U)
Door unlock detection switch circuit
CIRCUIT DESCRIPTION
The door unlock detection switch is built in the door lock motor. This switch is ON when the door lock knob
is in the unlock position and OFF when the lock knob is in the lock position. The ECU detects the door lock
knob conditions in this circuit. It is used as one of the operating conditions for the key confinement prevention
function.
WIRING DIAGRAM
DI1PG±16

I18710
D22
Driver Door ECU
D20
Door Key Lock and
Unlock SW Front LH
LSWE
KUL
KL 9
10
22 W±B
LG±R
LG±B 3
6
5 DI±1794
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
1988 Author: Date:
2005 SEQUOIA (RM1146U)
Door key lock and unlock switch circuit
CIRCUIT DESCRIPTION
The door key lock and unlock switch is built in the door lock motor. When the key is turned to the lock side,
terminal 5 of the switch is grounded and when the key is turned to the unlock side, terminal 6 of the switch
is grounded.
The door key lock and unlock switch can be checked using the DTC check (refer to DI±1904).
WIRING DIAGRAM
DI1PH±17