Lexus RX300 (MCU15). Manual — part 136

I08156

1

2

3

6

I08157

1

2

3

6

I08158

1

2

3

6

I08159

1

2

3

6

I08160

1

2

3

6

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

BE–91

LEXUS RX300 (RM785E)

25.

INSPECT REAR LH DOOR JAM PROTECTION LIMIT
SWITCH OPERATION (Window Down)

(a)

Connect the positive (+) lead from the ohmmeter to termi-
nal 2 and the negative (–) lead to terminal 6.

(b)

Connect the positive (+) lead from the battery to terminal
1 and the negative (–) lead to terminal 3.

(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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.

26.

INSPECT REAR RH DOOR JAM PROTECTION LIMIT
SWITCH OPERATION (Window Up)

(a)

Connect the positive (+) lead from the ohmmeter to termi-
nal 2 and the negative (–) lead to terminal 6.

(b)

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

(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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.

27.

INSPECT REAR RH DOOR JAM PROTECTION LIMIT
SWITCH OPERATION (Window Down)

(a)

Connect the positive (+) lead from the ohmmeter to termi-
nal 2 and the negative (–) lead to terminal 6.

(b)

Connect the positive (+) lead from the battery to terminal
1 and the negative (–) lead to terminal 3.

(c)

Check that the continuity exists when the window goes
down.

I08161

1

2

3

6

I04579

1

2

4

6

(+)

(–)

I04580

1

2

4

6

(+)

(–)

I04581

1

2

4

6

(+)

(–)

I04582

1

2

4

6

(+)

(–)

BE–92

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

LEXUS RX300 (RM785E)

(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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.

28.

INSPECT DRIVER’S (LHD)/PASSENGER’S (RHD)
DOOR JAM PROTECTION PULSE SWITCH OPERA-
TION

(a)

Connect the positive (+) lead from the TOYOTA electrical
tester to terminal 4 and the negative (–) lead to terminal
6.

(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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.
29.

INSPECT DRIVER’S (LHD)/PASSENGER’S (RHD)
DOOR JAM PROTECTION PULSE SWITCH CIRCUIT
(See page DI–618)

30.

INSPECT PASSENGER’S (LHD)/DRIVER’S (RHD)
DOOR JAM PROTECTION PULSE SWITCH OPERA-
TION

(a)

Connect the positive (+) lead from the TOYOTA electrical
tester to terminal 4 and the negative (–) lead to terminal
6.

(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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.
31.

INSPECT PASSENGER’S (LHD)/DRIVER’S (RHD)
DOOR JAM PROTECTION PULSE SWITCH CIRCUIT
(See page DI–640)

I08162

1

3

6

7

I08163

1

3

6

7

I08164

1

3

6

7

I08165

1

3

6

7

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

BE–93

LEXUS RX300 (RM785E)

32.

INSPECT REAR LH DOOR JAM PROTECTION PULSE
SWITCH

(a)

Connect the positive (+) lead from the TOYOTA electrical
tester to terminal 7 and the negative (–) lead to terminal
6.

(b)

Connect the positive (+) lead from the battery to terminal
3 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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.

33.

INSPECT REAR RH DOOR JAM PROTECTION PULSE
SWITCH

(a)

Connect the positive (+) lead from the TOYOTA electrical
tester to terminal 7 and the negative (–) lead to terminal
6.

(b)

Connect the positive (+) lead from the battery to terminal
3 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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.
34.

CHECKING OF THE 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.

BE–94

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

LEXUS RX300 (RM785E)

(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 jam protection is not function properly, adjust power win-
dow motor reset switch and pulse switch.