2000 LEXUS GS400 battery

I04126
13
I04127
13
I04128
within
4 to 40 seconds
21
I04129
2 within
60 seconds
1
I04130
within
4 to 40 seconds
3 1
BE±122
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
2423 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
16. Rear right side door:
INSPECT POWER WINDOW MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 3, and check that
the motor turns clockwise.
(b) Reverse the polarity, check that the motor turns counter-
clockwise.
If operation is not as specified, replace the motor.
17. Front door:
INSPECT POWER WINDOW MOTOR PTC OPERA-
TION
(a) Disconnect the connector from the master switch.
(b) Connect the positive (+) lead from the battery to terminal
2 and the negative (±) lead to terminal 1 on the wire har-
ness side connector and raise the window to full closed
position.
(c) Continue to apply voltage, check that there is a PTC op-
eration noise within approximately 4 to 90 seconds.
(d) Reverse the polarity, check that the window begins to de-
scend within approximately 60 seconds.
If operation is not as specified, replace the motor.
18. Rear door:
INSPECT POWER WINDOW MOTOR PTC OPERA-
TION
(a) Disconnect the connector from the rear door ECU.
(b) Connect the positive (+) lead from the battery to terminal
3 and the negative (±) lead to terminal 1 on the wire har-
ness side connector, and raise the window to full closed
position.
(c) Continue to apply voltage, check that there is a PTC op-
eration noise within approximately 4 to 90 seconds.

I04131
3 within
60 seconds
1
I05102
1
2
4
5
I05103
1
2
4
5
I05104
1
2
4
5
I05105
1
2
4
5
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE±123
2424 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(d) Reverse the polarity, check that the window begins to de-
scend within approximately 60 seconds.
If operation is not as specified, replace the motor.
19. Driver 's door (window up):
INSPECT JAM PROTECTION LIMIT SWITCH OPERA-
TION
(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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.
20. Driver 's door (window down):
INSPECT JAM PROTECTION LIMIT SWITCH OPERA-
TION
(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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.
21. Driver 's Door:
INSPECT JAM PROTECTION LIMIT SWITCH CIRCUIT
(See page DI±878)

I05106
1
2
4
5
I05107
1
2
4
5
I05108
1
2
4
5
I05109
1
2
4
5
I05110
12
3
6
BE±124
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
2425 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
22. Front passenger's door (window up):
INSPECT JAM PROTECTION LIMIT SWITCH OPERA-
TION
(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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.
23. Front passenger's door (window down):
INSPECT JAM PROTECTION LIMIT SWITCH OPERA-
TION
(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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.
24. Passenger 's Door:
INSPECT JAM PROTECTION LIMIT SWITCH CIRCUIT
(See page DI±912)
25. Rear LH side door (window up):
INSPECT JAM PROTECTION LIMIT SWITCH OPERA-
TION
(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.

I05111
12
3
6
I05112
12
3
6
I05113
12
3
6
I05114
12
3
6
I05115
12
3
6
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE±125
2426 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(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.
26. Rear LH side door (window down):
INSPECT JAM PROTECTION LIMIT SWITCH OPERA-
TION
(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.
27. Rear RH side door (window up):
INSPECT JAM PROTECTION LIMIT SWITCH OPERA-
TION
(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.

I05116
12
3
6
I05117
12
3
6
I05118
1
2
3
5
I05119
1
2
3
5
I05120
1
2
3
5
BE±126
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
2427 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
28. Rear RH side door (window down):
INSPECT JAM PROTECTION LIMIT SWITCH OPERA-
TION
(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.
29. Driver 's door:
INSPECT JAM PROTECTION PULSE SWITCH OP-
ERATION
(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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.
30. Driver 's door:
INSPECT JAM PROTECTION PULSE SWITCH CIR-
CUIT
(See page DI±880)
31. Front passenger's door:
INSPECT JAM PROTECTION PULSE SWITCH OP-
ERATION
(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.

I05121
1
2
3
5
I05122
13
67
I05123
13
67
I05124
13
67
I05125
13
67
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE±127
2428 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(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.
32. Front passenger's door:
INSPECT JAM PROTECTION PULSE SWITCH CIR-
CUIT
(See page DI±914)
33. Rear LH side 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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.
34. Rear RH side 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.
NOTICE:
If connecting the wire harness wrongly, the sensor might
be damaged so caution is necessary.

BE0HR±04
I04116
I04132
I04133
42
± BODY ELECTRICALPOWER DOOR LOCK CONTROL SYSTEM
BE±131
2432 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
1. Master switch:
INSPECT DRIVER'S DOOR LOCK CONTROL SWITCH
CONTINUITY
Switch positionTester connectionSpecified condition
LOCK5 ± 16Continuity
OFF±No continuity
UNLOCK16 ± 17Continuity
If continuity is not as specified, replace the switch.
2. Master switch:
INSPECT DRIVER'S DOOR LOCK CONTROL SWITCH
CIRCUIT
(See page DI±866)
3. INSPECT PASSENGER'S DOOR LOCK CONTROL
SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
LOCK2 ± 3Continuity
OFF±No continuity
UNLOCK1 ± 2Continuity
If continuity is not as specified, replace the switch.
4. INSPECT PASSENGER'S DOOR LOCK CONTROL
SWITCH CIRCUIT
(See page DI±898)
5. INSPECT PASSENGER'S DOOR LOCK CONTROL
SWITCH ILLUMINATION
Connect the positive (+) lead from the battery to terminal 4 and
the negative (±) lead to terminal 2, and check that the indicator
light lights up.
If operation is not as specified, replace the switch.

I05184

3 412 UNLOCK
I04138
1 212
± BODY ELECTRICALPOWER DOOR LOCK CONTROL SYSTEM
BE±133
2434 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
11. Front door:
INSPECT DOOR UNLOCK DETECTION SWITCH CIR-
CUIT
Driver side: (See page DI±870)
Passenger side (See page DI±902)
12. Rear door:
INSPECT DOOR UNLOCK DETECTION SWITCH CON-
TINUITY
Switch positionTester connectionSpecified condition
OFF (Door Lock set to
LOCK)±No continuity
ON (Door Lock set to
UNLOCK)3 ± 4 (Left side)
1 ± 2 (right side)Continuity
If continuity is not as specified, replace the switch.
13. Rear door:
INSPECT DOOR UNLOCK DETECTION SWITCH CIR-
CUIT
Rear LH side (See page DI±932)
Rear RH side (See page DI±949)
14. Front left side door:
INSPECT DOOR LOCK MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2, and check that
the door lock link moves to UNLOCK position.
(b) Reverse the polarity and check that the door lock link
moves to LOCK position.
If operation is not as specified, replace the door lock assembly.
15. Front left side door:
INSPECT DOOR LOCK MOTOR CIRCUIT
(See page DI±868)