Lexus LS400 (2000 year). Manual — part 12

I03446

1

2

I03447

1

2

I03448

1

2

I03449

1

2

I03450

1

2

BE–130

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

1993

14.

Driver’s door:
INSPECT POWER WINDOW MOTOR PTC THERM-
ISTOR OPERATION

(a)

Disconnect the connector from the driver door ECU.

(b)

Connect the positive (+) lead from the ammeter to termi-
nal 1 on the wire harness side connector and the negative
(–) lead to negative terminal of the battery.

(c)

Connect the positive (+) lead from the battery to terminal
2 on the wire harness side connector, and raise the win-
dow to the fully position.

(d)

Continue to apply voltage, and check that the current
changes to less than 1 A with 4 to 90 seconds.

(e)

Disconnect the leads from terminals.

(f)

Approximately 60 seconds later, connect the positive (+)
lead from the battery to terminal 1 and negative (–) lead
to terminal 2, and check that the window begins to de-
scend.

If operation is not as specified, replace the motor.

15.

Front Passenger’s door:
INSPECT POWER WINDOW MOTOR PTC THERM-
ISTOR OPERATION

(a)

Disconnect the connector from the front passenger door
ECU .

(b)

Connect the positive (+) lead from the ammeter to termi-
nal 2 on the wire harness side connector and the negative
(–) lead to negative terminal of the battery.

(c)

Connect the positive (+) lead from the battery to terminal
1 on the wire harness side connector, and raise the win-
dow to the fully position.

(d)

Continue to apply voltage and check that the current
changes to less than 1 A within 4 to 90 seconds.

(e)

Disconnect the leads from the terminals.

(f)

Approximately 60 seconds later, connect the positive (+)
lead from the battery to terminal 2 and the negative (–)
lead to terminal 1, and check that the window begins to
descend.

If operation is not as specified, replace the motor.

16.

Rear LH door:
INSPECT POWER WINDOW MOTOR PTC THERM-
ISTOR OPERATION

(a)

Disconnect the connector from the Rear LH door ECU.

(b)

Connect the positive (+) lead from the ammeter to termi-
nal 1 on the wire harness side connector and the negative
(–) lead to negative terminal of the battery.

(c)

Connect the positive (+) lead from the battery to terminal
2 on the wire harness side connector, and raise the win-
dow to the fully position.

I03451

1

2

I03452

1

2

I03453

1

2

I04563

1

2

4

5

I04564

1

2

4

5

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

BE–131

1994

(d)

Continue to apply voltage and check that the current
changes to less than 1 A within 4 to 90 seconds.

(e)

Disconnect the leads from the terminals.

(f)

Approximately 60 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
descend.

If operation is not as specified, replace the motor.

17.

Rear RH door:
INSPECT POWER WINDOW MOTOR PTC THERM-
ISTOR OPERATION

(a)

Disconnect the connector from the Rear RH door ECU.

(b)

Connect the positive (+) lead from the ammeter to termi-
nal 2 on the wire harness side connector and the negative
(–) lead to negative terminal of the battery.

(c)

Connect the positive (+) lead from the battery to terminal
1 on the wire harness side connector, and raise the win-
dow to the fully position.

(d)

Continue to apply voltage and check that the current
changes to less than 1 A within 4 to 90 seconds.

(e)

Disconnect the leads from the terminals.

(f)

Approximately 60 seconds later, connect the positive (+)
lead from the battery to terminal 2 and the negative (–)
lead to terminal 1, and check that the window begins to
descend.

If operation is not as specified, replace the motor.

18.

Driver’s 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
2 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.

I04565

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2

4

5

I04566

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2

4

5

I04567

1

2

4

5

I04568

1

2

4

5

I04569

1

2

4

5

BE–132

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

1995

19.

Driver’s 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
1 and the negative (–) lead to terminal 2.

(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.

20.

Front Passenger’s 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.

21.

Front Passenger’s 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.

I04570

1

2

4

5

I04571

1

2

4

5

I04572

1

2

4

5

I04573

1

2

4

5

I04574

1

2

4

5

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

BE–133

1996

(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.

22.

Rear LH 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
2 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.

23.

Rear LH 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
1 and the negative (–) lead to terminal 2.

(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.