Lexus LS400 (2000 year). Service manual — part 13

I04575

1

2

4

5

I04576

1

2

4

5

I04577

1

2

4

5

I04578

1

2

4

5

I04579

1

3

2

5

BE–134

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

1997

24.

Rear RH Door (Window Up):
INSPECT JAM PROTECTION LIMIT SWITCH

(a)

Connect the positive (+) lead from the ohmmeter to termi-
nal 4 and the negative (–) lead to terminal 5.

(b)

Connect the positive (+) lead from the battery to terminal
1 and the negative (–) lead to terminal 2.

(c)

Check that the continuity exists when the window goes
up.

(d)

Check that the no continuity exists when the window is in
the fully closed position.

If operation is not as specified, replace the motor.

25.

Rear RH Door (Window Down):
INSPECT JAM PROTECTION LIMIT SWITCH

(a)

Connect the positive (+) lead from the ohmmeter to termi-
nal 4 and the negative (–) lead to terminal 5.

(b)

Connect the positive (+) lead from the battery to terminal
2 and the negative (–) lead to terminal 1.

(c)

Check that the continuity exists when the window goes
down.

(d)

Check that the no continuity exists when the window is in
the fully opened position.

If operation is not as specified, replace the motor.

26.

Driver’s Door:
INSPECT JAM PROTECTION PULSE SWITCH

(a)

Connect the positive (+) lead from the TOYOTA electrical
tester to terminal 3 and the negative (–) lead to terminal
5.

(b)

Connect the positive (+) lead from the battery to terminal
2 and the negative (–) lead to terminal 1.

(c)

Check that pulse is generated during the motor running.

I04580

1

3

2

5

I04581

1

3

2

5

I04582

1

3

2

5

I04583

1

2

3

5

I04584

1

2

3

5

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

BE–135

1998

(d)

Reverse the polarity and check that pulse is generated.

If operation is not as specified, replace the motor.

27.

Front Passenger’s Door:
INSPECT JAM PROTECTION PULSE SWITCH

(a)

Connect the positive (+) lead from the TOYOTA electrical
tester to terminal 3 and the negative (–) lead to terminal
5.

(b)

Connect the positive (+) lead from the battery to terminal
1 and the negative (–) lead to terminal 2.

(c)

Check that pulse is generated during the motor running.

(d)

Reverse the polarity and check that pulse is generated.

If operation is not as specified, replace the motor.

28.

Rear LH Door:
INSPECT JAM PROTECTION PULSE SWITCH

(a)

Connect the positive (+) lead from the TOYOTA electrical
tester to terminal 3 and the negative (–) lead to terminal
5.

(b)

Connect the positive (+) lead from the battery to terminal
2 and the negative (–) lead to terminal 1.

(c)

Check that pulse is generated during the motor running.

(d)

Reverse the polarity and check that pulse is generated.

If operation is not as specified, replace the motor.

I04585

1

2

3

5

I04586

1

2

3

5

BE–136

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

1999

29.

Rear RH Door:
INSPECT JAM PROTECTION PULSE SWITCH

(a)

Connect the positive (+) lead from the TOYOTA electrical
tester to terminal 3 and the negative (–) lead to terminal
5.

(b)

Connect the positive (+) lead from the battery to terminal
1 and the negative (–) lead to terminal 2.

(c)

Check that pulse is generated during the motor running.

(d)

Reverse the polarity and check that pulse is generated.

If operation is not as specified, replace the motor.

30.

INSPECT JAM PROTECTION FUNCTION

NOTICE:
Never, ever be caught any part of your body when check-
ing.
HINT:
In case of performing resetting of the limit switch, do checking
after repeating up and down of the glass with automatic opera-
tion.
(a)

Confirmation of AUTO up operation:
Confirm that the window will be fully close with AUTO up
operation.

(b)

Checking of the 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 handle of the hammer stetted.

(2)

Confirm that the window will then stop going down
about 200 mm.

HINT:
In case of removing the glass, glass guide, regulator and etc.
be sure to perform checking of the jam protection function.
If the jamprotection is not function properly, adjust power win-
dow motor reset switch and pulse switch.

BE0HG–03

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

BE–137

2000

ADJUSTMENT

HOW TO RESET POWER WINDOW MOTOR (RESET SWITCH AND PULSE SWITCH)
If the jamprotection is not functioned properly, perform the following procedure.
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 (See page

BO–13

,

BO–19

).

HINT:
Place the matchmarks on the power window motor and window regulator gear.
(b)

Connect the power window motor and power window switch to wire harness of the vehicle.

(c)

Turn the ignition switch ON and operate the power window switch to idle the power window motor in
UP side direction for more than 6 rotations or less than 10 rotates (4 seconds or more).

(d)

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.

(e)

Assemble the power window regulator and door glass.

HINT:
Never rotate the motor to the down direction until the completion of the window glass installation.
(f)

Connect power window switch to wire harness and turn the ignition switch ON.

(g)

Repeat UP and DOWN operation several times manually.

(h)

Check if AUTO UP

→

AUTO DOWN operates in automatic operation.

HINT:

Take care that the jam protection function does not operate just after resetting.

Reset the regulator again when performing the reverse operating after closing the window fully by
AUTO UP operation.

(i)

Check the power window function.