Toyota Sequoia (2005). Manual - part 872

BE264–03

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

BE–73

3477

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.

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 ELECTRICAL

BACK DOOR POWER WINDOW CONTROL SYSTEM

3478

BACK DOOR POWER WINDOW CONTROL SYSTEM

LOCATION

BE2MM–01

I18616

I18690

2

3

1

DOWN

UP

I27714

I27715

–

BODY ELECTRICAL

BACK DOOR POWER WINDOW CONTROL SYSTEM

BE–75

3479

INSPECTION

1.

INSPECT BACK DOOR POWER WINDOW SWITCH
CONTINUITY

Switch position

Tester connection

Specified  condition

UP

3 – 6

Continuity

OFF

–

No continuity

DOWN

3 – 5

Continuity

If continuity is not as specified, replace the switch.

2.

INSPECT BACK DOOR KEY LOCK AND UNLOCK
SWITCH CONTINUITY (Back Door Control Switch)

Switch position

Tester connection

Specified  condition

UP

1 – 3

Continuity

OFF

–

No continuity

DOWN

2 – 3

Continuity

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.

I28582

Back Door ECU:

A

17

16

I28583

GND

BE–76

–

BODY ELECTRICAL

BACK DOOR POWER WINDOW CONTROL SYSTEM

3480

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.

Item

Condition

Tool setting

5V/DIV, 10 ms/DIV

Vehicle condition

Ignition 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.