TOYOTA SEQUOIA 2001 Service Repair Manual

± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
DI±1839
2033 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
HINT:
When using the hand±held tester, start the inspection from step 1 and when not using the hand±held tester,
start from step 2.
1 Check jam protection limit switch using hand±held tester.
PREPARATION:
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
CHECK:
According to the display on the tester, read the DATA LIST.
P±DOOR:
ItemMeasurement Item/Dis-
play (Range)Normal conditionDiagnostic Note
LIMIT SWJam protection limit SW/
ON or OFFON: Window is almost fully open
OFF: Window is open*1
*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.
OK:
Indication on the tester switches between ON and OFF in accordance with the jam protection
limit switch status.
OK Proceed to next circuit inspection shown in
problem symptoms table (See page DI±1818).
NG
2 Check jam protection limit switch (Jam protection function) (See page BE±69).
NG Replace the power window motor.
OK

DI±1840
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
2034 Author: Date:
2005 SEQUOIA (RM1146U)
3 Check wire harness and connector between jam protection limit switch and pas-
senger 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).

I28442
W±B
L±R 5
3 Pulse SensorSGND
PLS 18
17Front Passenger
Door ECU P7
Power Window Motor
Front RH
*1: w/ Driving Position Memory
*2: w/o Driving Position MemoryF18
F18
(*1) (*2)4
3
F18
F18
(*1) (*2)
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
DI±1841
2035 Author: Date:
2005 SEQUOIA (RM1146U)
Jam protection pulse sensor circuit
CIRCUIT DESCRIPTION
The jam protection pulse sensor, built in the power window motor, outputs a ON/OFF pulse when the motor
rotates.
WIRING DIAGRAM
DI1QD±07

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).

I28443
F18
Front Passenger Door ECUD22
Driver Door ECU
WLSW 7
R±L E
J7 J/C
E
J6
R±L
R±LII15
LSW7
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
DI±1843
2037 Author: Date:
2005 SEQUOIA (RM1146U)
Window lock switch circuit
CIRCUIT DESCRIPTION
The power window lock switch circuit can be checked using the DTC check (refer to DI±1904).
The window lock switch is built in the passenger door ECU. Voltage applied to the LSW terminal of the pas-
senger door ECU is shut off when the window lock switch is turned to the LOCK position. The power main
relay stops power supply to the other power window control switches.
WIRING DIAGRAM
DI1PE±16

DI±1844
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
2038 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
HINT:
When using the hand±held tester, start the inspection from step 1 and when not using the hand±held tester,
start from step 2.
Check if DTC B1223 of the multiplex communication system is output. When the DTC is not output, proceed
to the following procedures and when it is output, perform inspection (see page DI±1904).
1 Check window lock switch using hand±held tester.
PREPARATION:
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
CHECK:
According to the display on the tester, read the DATA LIST.
P±DOOR:
ItemMeasurement Item/Dis-
play (Range)Normal conditionDiagnostic Note
P P/W AUTO SWP/W auto SW signal/
ON or OFFON: P/W auto UP/DOWN SW is ON
OFF: P/W auto UP/DOWN SW is OFF±
LOCK POS SWLock position SW signal/
ON or OFFON: Door lock is in unlock position
OFF: Door lock is in lock position±
OK:
Indication on the tester switches between ON and OFF in accordance with the window lock
switch status.
OK Proceed to next circuit inspection shown in
problem symptoms table (See page DI±1818).
NG
2 Check wire harness and connector between passenger door ECU and driver
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

DI±1846
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
2040 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check remote control mirror motor (See page BE±115).
NG Replace outer mirror motor.
OK
2 Check wire harness and connector between remote mirror motor 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).

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).