Lexus ES300 (1997 year). Manual — part 263

N21373

Wire Harness Side

1 2

e–2–1–0

Z19529

(b) Close

(c) Open

A3

BE–116

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

1500

1997 LEXUS ES300 (RM511U)

18.

INSPECT POWER WINDOW MOTOR CIRCUIT

(a)

Disconnect the connector from the motor.

(b)

Connect the connector to the master switch and power
window switch.

(c)

Inspect the connector on the wire harness side.

Driver’s Door Motor

Tester connection

Condition

Specified condition

1 – Ground

*Master switch position DOWN or OFF

No voltage

1 – Ground

*Master switch position UP

Battery positive voltage

2 – Ground

*Master switch position UP or OFF

No voltage

2 – Ground

*Master switch position DOWN

Battery positive voltage

Except Driver’s Door Motor

Tester connection

Condition

Specified condition

1 – Ground

*Master switch position UP or OFF

No voltage

1 – Ground

*Master switch position DOWN

Battery positive voltage

1 – Ground

*Power window switch position UP or OFF

No voltage

1 – Ground

*Power window switch position DOWN

Battery positive voltage

2 – Ground

*Master switch position DOWN or OFF

No voltage

2 – Ground

*Master switch position UP

Battery positive voltage

2 – Ground

*Power window switch position DOWN or OFF

No voltage

2 – Ground

*Power window switch position UP

Battery positive voltage

*: Set the window lock switch to the unlock position.(except driv-
er’s door motor)
If the circuit is not as specified, inspect the circuits connected
to other parts.

19.

Key–Off Power Window Signal:
INSPECT INTEGRATION RELAY OPERATION

HINT:
When the relay circuit is as specified, inspect the key–off power
window signal.
(a)

Connect the positive (+) lead from the voltmeter to termi-
nal A3 and the negative (–) lead to body ground.

(b)

Close the door with ignition switch turned to LOCK or
ACC, and check that the meter needle indicates battery
positive voltage.

Z19530

A3

–

BODY ELECTRICAL

POWER WINDOW CONTROL SYSTEM

BE–117

1501

1997 LEXUS ES300 (RM511U)

(c)

Open the door and check that the meter needle indicates
0 V.

(d)

Turn the ignition switch ON and check that the meter
needle indicates battery positive voltage again.

If operation is not as specified, replace the relay.
20.

INSPECT INTEGRATION RELAY CIRCUIT
(See page

BE–20

)

Z19372

Door Lock Control Switch

Ignition Switch

Power Window Master Switch

DOOR Lock Control Switch

Instrument Panel Junction Block

DOOR Fuse

ECU–IG Fuse

Integration Relay

Door Key Lock and Unlock Switch

Door Lock Assembly

Door Lock Motor

Door Unlock Detection Switch

Door Lock Assembly

Door Lock Motor

Door Unlock Detection Switch

BE05O–01

BE–118

–

BODY ELECTRICAL

POWER DOOR LOCK CONTROL SYSTEM

1502

1997 LEXUS ES300 (RM511U)

POWER DOOR LOCK CONTROL SYSTEM

LOCATION

BE05P–01

N21194

1

2

3

4

5

6

7

8

9

10

11

12

13

14

N21374

Wire Harness Side

1 2 3

4 5 6

7 8 9 101112 1314

s–14–1–B

N21519

1

2

3

4

5

–

BODY ELECTRICAL

POWER DOOR LOCK CONTROL SYSTEM

BE–119

1503

1997 LEXUS ES300 (RM511U)

INSPECTION

1.

Master Switch:
INSPECT DRIVER’S DOOR LOCK CONTROL SWITCH
CONTINUITY

Switch position

Tester connection

Specified condition

LOCK

1 – 4

Continuity

OFF

–

No continuity

UNLOCK

1 – 3

Continuity

If continuity is not as specified, replace the switch.

2.

Master Switch:
INSPECT DRIVER’S DOOR LOCK CONTROL SWITCH
CIRCUIT

Disconnect the connector from the switch and inspect the con-
nector on the wire harness side.

Tester connection

Condition

Specified condition

1 – Ground

Constant

Continuity

3 – Ground

Constant

Battery positive voltage

4 – Ground

Constant

Battery positive voltage

If the circuit is not as specified, inspect the circuits connected
to other parts.

3.

INSPECT PASSENGER’S DOOR LOCK CONTROL
SWITCH CONTINUITY

Switch position

Tester connection

Specified condition

LOCK

2 – 3

Continuity

OFF

–

No continuity

UNLOCK

1 – 2

Continuity

If continuity is not as specified, replace the switch.