2001 TOYOTA SEQUOIA O2 sensor

DI±1842
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
2036 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check the jam protection pulse sensor circuit using DTC check (See page
DI±1904).
CHECK:
Check if DTC B1234 of the multiplex communication system is output.
OK:
DTC is not output.
OK Proceed to next circuit inspection shown in
problem symptoms table (See page DI±1818).
NG
2 Check jam protection pulse sensor (See page BE±69).
NG Replace the power window motor.
OK
3 Check wire harness and connector between jam protection pulse sensor and
passenger door ECU (See page IN±35).
NG Repair or replace wire harness or connector.
OK
Proceed to next circuit inspection shown in
problem symptoms table
(See page DI±1818).

I28444
R18
Remote Control Mirror RHFront Passenger Door ECU
PM+R
PMVR
PMHR F1815
17
16 L±W
LG±B
LG±R 7
6
8 M+
MV
MHF18
F18
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
DI±1845
2039 Author: Date:
2005 SEQUOIA (RM1146U)
Remote control mirror motor RH circuit (w/ Driving position
memory)
CIRCUIT DESCRIPTION
SEQUOIA features a driving position memory function, and up to 2 driver positions can be memorized.
The passenger door ECU operates 2 motors built into the remote control mirror. The motors move the mirror
to the memorized positions based on information from the position sensor.
WIRING DIAGRAM
DIDEV±01

I28445
R18
Remote Control Mirror RHFront Passenger
Door ECU
VDD
SV
SH
GNDPVC
VSSR
HSSR
RE1 9
16
10
1511
18 F18
19
12 GR±B
GR±G
GR±L
GR±RF18
F18
F18
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
DI±1847
2041 Author: Date:
2005 SEQUOIA (RM1146U)
Remote control mirror position sensor RH circuit (w/ Driving posi-
tion memory)
CIRCUIT DESCRIPTION
SEQUOIA features a driving position memory function, and up to 2 driver positions can be memorized.
The passenger door ECU operates 2 motors built into the remote control mirror. The motors move the mirror
to the memorized positions based on information from the position sensor.
WIRING DIAGRAM
DIDEW±01

DI±1848
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
2042 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check remote control mirror position sensor (See page DI±1819).
NG Replace outer mirror.
OK
2 Check wire harness and connector between remote control mirror position sen-
sor and driver door ECU (See page IN±35).
NG Repair or replace harness or connector.
OK
Proceed to next circuit inspection shown in
problem symptoms table
(See page DI±1818).

DID9G±01
I28586
From
Battery
From
Battery
From
Battery
From
DOME
FuseBack Door ECU
PWR No. 5
IG Switch
Luggage Room Light
BODY ECUECU±B
ECU±IG
Back Door Key Lock and Unlock Switch
Back Door Lock Assy
Back Door Unlock
Detection Switch
Back Door Courtesy
Light Switch
Back Door
Lock MotorDOOR
ONBRD
BECU
SIG
LGLP
ILE
BKUL
BKL
KEYE
LSWB
LSWE
BDCY
CTYE
ACT+
ACT±WIP+
WIP±
W
P
SGND
BDDN
BDUP
DSV
DS1
DS2
DSGBEAN
Driver Door
ECU
Rear Wiper Motor
Wiper
Motor
Reverse Position SW
String Position SW
Back Door Power Window Motor
Window
Motor
*1: Pulse Sensor*1*1 A/C ECU BEANBEAN
BEAN
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
DI±1851
2045 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DIAGRAM

DI57H±07
DI±1854
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
2048 Author: Date:
2005 SEQUOIA (RM1146U)
PROBLEM SYMPTOMS TABLE
REAR WIPER AND WASHER
SymptomSuspected AreaSee page
Rear wiper does not operate.
1. Wiper switch circuit
2. Rear wiper motor circuit
3. Rear wiper limit switch circuit
4. Back door power window pulse sensor circuit
5. Body ECU
6. Back door ECUDI±1704
DI±1880
DI±1885
DI±1877
IN±35
IN±35
Rear washer does not operate.1. Washer switch and washer motor circuit
2. Body ECUDI±1704
IN±35
Wiper does not operate when washer switch is ON.1. Wiper switch and washer motor circuit
2. Body ECUDI±1704
IN±35
OTHERS
SymptomSuspected AreaSee page
Back door power window does not operate.
1. Back door power window switch circuit
2. Back door power window pulse sensor circuit
3. Back door power window motor circuit
4. Body ECU
5. Back door ECUDI±1718
DI±1877
DI±1874
IN±35
IN±35
Back door lock does not operate.
1. Back door key lock and unlock switch circuit
2. Back door lock motor circuit
3. Back door unlock detection switch circuit
4. Back door courtesy light switch circuit
5. Back door key lock and unlock switch circuit
6. Back door ECUDI±1882
DI±1872
DI±1869
DI±1864
DI±1882
IN±35
Luggage room light does not come on.
1. Luggage room light circuit
2. Back door courtesy light switch circuit
3. Body door ECUDI±1867
DI±1864
IN±35
Whole functions of the back door control system do not operate.1. Power source circuit
2. Back door ECUDI±1861
IN±35

I28583
GND
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
DI±1857
2051 Author: Date:
2005 SEQUOIA (RM1146U) DSV e DSG
(B10±11 e B10±23)
LG±B e W±R
Back door pow-
er window pulse
sensor
Ignition switch ON10 to 14 V
DS1 e GND
(B10±17 e B11±3)LG±R e W±B
Back door pow-
er window pulse
sensor
Back door power window operatingPulse generation
(See waveform 1)
DS2 e GND
(B10±16 e B11±3)P e W±B
Back door pow-
er window pulse
sensor
Back door power window operatingPulse generation
(See waveform 1)
DSG e Body ground
(B10±23 e Body ground)W±R e Body
groundBack door pow-
er window pulse
sensor ground
AlwaysBelow 1 V
Waveform 1
ItemCondition
Tool setting5 V/DIV, 10 ms/DIV
Vehicle conditionBack door power window operating

DID9I±01
DI±1858
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
2052 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.
BACK±DOOR:
ItemMeasurement Item/
Display (Range)Normal ConditionDiagnostic Note
COURTSY SW
Back door courtesy
light SW signal/ON or
OFFON: Back door is open
OFF: Back door is closed±
LOCK POS SWLock position SW sig-
nal/ON or OFFON: Door lock is in unlock position
OFF: Door lock is in lock position±
WIPER TURN SW
Rear wiper reversing
position switch/ON or
OFFON: Rear wiper reverse position
OFF: Rear wiper non±reverse position±
WIPER RTRCT SWRear wiper position
switch/ON or OFFON: Rear wiper arm in store position
OFF: Rear wiper arm not in store position±
KEY SW (UNLOCK)Unlock SW linked with
the key/ON or OFFON: Back door lock is in unlock position
OFF: Back door lock is in lock position±
KEY SW (LOCK)Unlock SW linked with
the key/ON or OFFON: Back door lock is in lock position
OFF: Back door lock is in unlock position±
UP/DOOR KEY
Back door key lock
and unlock switch
linked window open
and close/AVAIL or
NOT AVL
AVAIL: Key±linked open and close SET
NOT AVL: Key±linked open and close UNSET*1
DOWN/DOOR KEY
Back door key lock
and unlock switch
linked window open
and close/AVAIL or
NOT AVL
AVAIL: Key±linked open and close SET
NOT AVL: Key±linked open and close UNSET*1
P/W POSITION
Back door power win-
dow position/CLOSE
or OPENCLOSE: Back door power window is fully closed
OPEN: Back door power window is opened±
GLASS POS±1/4
Back door power win-
dow glass position
(Fully closed ± 1/4
open): OK or CAU-
TIONOK: Power window is going UP by manual operation
CAUTION: CAUTION may be displayed even when no resis-
tance is applied in each position. In this case there is a for-
eign object stuck in that position.
±
GLASS POS±2/4
Back door power win-
dow glass position
(Fully closed ± 2/4
open): OK or CAU-
TIONOK: Power window is going UP by manual operation
CAUTION: CAUTION may be displayed even when no resis-
tance is applied in each position. In this case there is a for-
eign object stuck in that position.
±
GLASS POS±3/4
Back door power win-
dow glass position
(Fully closed ± 3/4
open): OK or CAU-
TIONOK: Power window is going UP by manual operation
CAUTION: CAUTION may be displayed even when no resis-
tance is applied in each position. In this case there is a for-
eign object stuck in that position.
±