Page 3481 of 4323

BE2MO±01
I08152
N14863
3 12
53
15
2
I1535121
I1535221
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE±69
3473 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT REAR DOOR POWER WINDOW SWITCH
CONTINUITY
Switch positionTester connectionSpecified condition
UP2 ± 3, 4 ± 5Continuity
OFF2 ± 3 ± 5Continuity
DOWN2 ± 4, 3 ± 5Continuity
If continuity is not as specified, replace the switch.
2. INSPECT POWER WINDOW SWITCH CIRCUIT
(Driver 's Door: See page DI±1788)
(Passenger 's Door: See page DI±1826)
(Rear Door: See page DI±1747)
(Back Door: See page DI±1747)
3. INSPECT POWER MAIN RELAY CONTINUITY
ConditionTester connectionSpecified condition
Always1 ± 2Continuity
Always3 ± 5No continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.
4. Driver 's Door:
INSPECT POWER WINDOW MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2, and check that
the motor turns clockwise.
(b) Reverse the polarity and check that the motor turns coun-
terclockwise.
If operation is not as specified, replace the power window mo-
tor.
NOTICE:
Since the jam protection may not work properly, be sure to
conduct procedures described in ºHOW TO RESET POW-
ER MOTOR (RESET AND PULSE SWITCH)º after this in-
spection.
Page 3482 of 4323

I05476
2
1
I054772
1
I153572
1
I153582
1
I15353
2
1
BE±70
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
3474 Author: Date:
2005 SEQUOIA (RM1146U)
5. Passenger 's Door:
INSPECT POWER WINDOW MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2, and check that
the motor turns clockwise.
(b) Reverse the polarity and check that the motor turns coun-
terclockwise.
If operation is not as specified, replace the power window mo-
tor.
NOTICE:
Since the jam protection may not work properly, be sure to
conduct procedures described in ºHOW TO RESET POW-
ER MOTOR (RESET AND PULSE SWITCH)º after this in-
spection.
6. Rear Right Door:
INSPECT POWER WINDOW MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminals 2, and check that
the motor turns clockwise.
(b) Reverse the polarity and check that the motor turns coun-
terclockwise.
If operation is not as specified, replace the power window mo-
tor.
7. Rear Left Door:
INSPECT POWER WINDOW MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2, and check that
the motor turns clockwise.
Page 3483 of 4323

I15354
2
1
I14317
21
I1431821
I21531
21
I21532
21
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE±71
3475 Author: Date:
2005 SEQUOIA (RM1146U)
(b) Reverse the polarity and check that the motor turns coun-
terclockwise.
If operation is not as specified, replace the power window mo-
tor.
8. Front Door:
INSPECT PTC OPERATION
(a) Disconnect the connector from the wire harness side con-
nector.
(b) Connect the negative (±) lead from the ammeter to termi-
nal 1 of the motor side connector and the positive (+) lead
to negative terminal of the battery.
(c) Connect the positive (+) lead from the battery to terminal
2 of the motor side connector, and raise the window to the
fully closed position.
(d) Continue to apply voltage and check that the current
changes from approximately 14 A to less than 1 A within
4 to 90 seconds.
(e) Disconnect the leads from the terminals.
(f) Approximately 90 seconds later, connect the positive (+)
lead from the battery to terminal 1 and the negative (±)
lead to terminal 2, and check that the window begins to
goes down.
If operation is not as specified, replace the power window mo-
tor.
9. Rear Door:
INSPECT PTC OPERATION
(a) Disconnect the connector from the wire harness side con-
nector.
(b) Connect the negative (±) lead from the ammeter to termi-
nal 1 of the motor side connector and the positive (+) lead
to negative terminal of the battery.
(c) Connect the positive (+) lead from the battery to terminal
2 of the motor side connector, and raise the window to the
fully closed position.
(d) Continue to apply voltage and check that the current
changes from approximately 14 A to less than 1 A within
4 to 90 seconds.
(e) Disconnect the leads from the terminals.
(f) Approximately 90 seconds later, connect the positive (+)
lead from the battery to terminal 1 and the negative (±)
lead to terminal 2, and check that the window begins to
goes down.
If operation is not as specified, replace the power window mo-
tor.
Page 3484 of 4323
BE±72
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
3476 Author: Date:
2005 SEQUOIA (RM1146U)
10. INSPECT JAM PROTECTION FUNCTION
NOTICE:
Be careful not to be caught any part of your body when
checking.
HINT:
When performing resetting of the limit switch, do checking after
repeating up and down of the glass with automatic operation.
(a) Confirmation of AUTO up operation:
Confirm that the window will be fully closed with AUTO up
operation.
(b) Checking operation of the jam protection function:
(1) Move up the window with AUTO up operation and
check that the window will go down when it touches
the inserted handle of the hammer.
(2) Confirm that the window will then stop going down
about 200 mm (7.87 in.).
HINT:
When removing the glass, glass guide, regulator, etc. be sure
to perform checking of the jam protection function.
If the jam protection is not functioning properly, adjust the power
window motor limit switch and pulse switch.
Page 3485 of 4323

BE264±03
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE±73
3477 Author: Date:
2005 SEQUOIA (RM1146U)
ADJUSTMENT
HOW TO RESET POWER WINDOW MOTOR (LIMIT SWITCH)
NOTICE:
If the jam protection function is not functioning properly, perform the following procedures.
HINT:
It is necessary to reset the power window motor (in initial position for the limit switch) when separating the
window regulator from the power window motor or operating the window regulator with the door glass not
installed.
(a) Remove the power window motor.
HINT:
Place matchmarks on the power window motor and window regulator gear.
(b) Connect the power window motor and power window switch to the wire harness of the vehicle.
(c) Turn the ignition switch ON.
(d) Press the power window UP switch until the motor completes 6 to 10 rotations (4 seconds of rotation
or more).
(e) Assemble the power window motor and regulator.
HINT:
Install the motor when the regulator arm is below the middle point.
Align the matchmarks on the power window motor and window regulator gear when installing the pow-
er window motor.
(f) Assemble the power window regulator and door glass.
HINT:
Never rotate the motor downward until the completion of the window glass installation.
(g) Connect the power window switch to the wire harness and turn the ignition switch ON.
(h) Repeat UP and DOWN operation several times manually.
(i) Check that AUTO UP " AUTO DOWN automatic operation is normal.
NOTICE:
The jam protection function does not operate immediately after performing reset.
If the jam protection function is triggered and the window lowers after the window has been fully
closed by AUTO UP operation (step i), reset the power window motor again.
(j) Check the power window function.
Page 3486 of 4323
BE073±07
I28413
Back Door Power
Window Switch
Instrument Panel J/B
Back Door Key Lock
and Unlock Switch
Back Door Control Switch
Back Door Power Window Regulator
Assembly
Back Door Power Window Motor Body ECU
(Located behind the
Instrument Panel)
Back Door ECU
(Located inside of the back door trim board)
BE±74
± BODY ELECTRICALBACK DOOR POWER WINDOW CONTROL SYSTEM
3478 Author: Date:
2005 SEQUOIA (RM1146U)
BACK DOOR POWER WINDOW CONTROL SYSTEM
LOCATION
Page 3487 of 4323

BE2MM±01
I18616
I18690
2
3 1DOWN UP
I27714
I27715
± BODY ELECTRICALBACK DOOR POWER WINDOW CONTROL SYSTEM
BE±75
3479 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT BACK DOOR POWER WINDOW SWITCH
CONTINUITY
Switch positionTester connectionSpecified condition
UP3 ± 6Continuity
OFF±No continuity
DOWN3 ± 5Continuity
If continuity is not as specified, replace the switch.
2. INSPECT BACK DOOR KEY LOCK AND UNLOCK
SWITCH CONTINUITY (Back Door Control Switch)
Switch positionTester connectionSpecified condition
UP1 ± 3Continuity
OFF±No continuity
DOWN2 ± 3Continuity
If continuity is not as specified, replace the switch.
3. INSPECT BACK DOOR POWER WINDOW MOTOR OP-
ERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 4 and check that
the motor turns clockwise.
(b) Connect the positive (+) lead from the battery to terminal
4 and the negative (±) lead to terminal 1 and check that
the motor turns counterclockwise.
If operation is not as specified, replace the back door power
window motor.
Page 3488 of 4323

I28582
Back Door ECU:
A
1716
I28583
GND BE±76
± BODY ELECTRICALBACK DOOR POWER WINDOW CONTROL SYSTEM
3480 Author: Date:
2005 SEQUOIA (RM1146U)
4. INSPECT BACK DOOR POWER WINDOW PULSE
SENSOR (Using oscilloscope)
(a) Remove the back door ECU with the connectors still con-
nected.
(b) Connect the oscilloscope to terminals A±16 and A±17
and body ground.
(c) Operate the back door power window switch.
(d) Check the signal waveform according to the condition (s)
in the table below.
ItemCondition
Tool setting5V/DIV, 10 ms/DIV
Vehicle conditionIgnition switch ON
OK:
As shown in the illustration
5. INSPECT JAM PROTECTION FUNCTION
NOTICE:
Be careful not to get any part of your body caught when
checking.
HINT:
When performing resetting of the limit switch, do checking after
repeating up and down of the glass with automatic operation.
(a) Confirmation of AUTO up operation:
Confirm that the window will close fully with AUTO up op-
eration.
(b) Checking operation of the jam protection function:
(1) Raise the window with AUTO up operation and
check that the window goes down when it touches
the inserted handle of the hammer.
(2) Confirm that the window will then stop going down
after about 200 mm (7.87 in).
HINT:
When removing the glass, glass guide, regulator, etc. be sure
to perform a check of the jam protection function.
If the jam protection is not functioning properly, adjust the power
window motor switch and pulse switch.