Lexus ES300 (1997 year). Manual — part 110

BE058–03

N21585

2 1

N21586

Wire Harness Side

1

2

Z05874

1

2

Z05672

Wire Harness Side

1

2

GA–2–1–B

BE–46

–

BODY ELECTRICAL

INTERIOR LIGHT SYSTEM

1430

1997 LEXUS ES300 (RM511U)

INSPECTION

1.

INSPECT PERSONAL LIGHT SWITCH CONTINUITY

Switch position

Tester connection

Specified condition

OFF

–

No continuity

ON

1 – 2

Continuity

If continuity is not as specified, replace the light assembly or
bulb.

2.

INSPECT PERSONAL LIGHT SWITCH CIRCUIT

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

Tester connection

Condition

Specified condition

2 – Ground

Constant

Continuity

1 – Ground

Constant

Battery positive voltage

If the circuit is as specified, inspect power source or wire har-
ness.

3.

INSPECT INTERIOR LIGHT SWITCH CONTINUITY

Switch position

Tester connection

Specified condition

DOOR

2 – Switch body

Continuity

OFF

–

No continuity

ON

1 – 2

Continuity

If continuity is not as specified, replace the light assembly or
bulb.

4.

INSPECT INTERIOR LIGHT SWITCH CIRCUIT

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

N17456

ON

OFF

2 1

N21587

Wire Harness Side

1 2

h–2–1–B

N20159

ON

OFF

Ohmmeter

–

BODY ELECTRICAL

INTERIOR LIGHT SYSTEM

BE–47

1431

1997 LEXUS ES300 (RM511U)

Tester connection

Condition

Specified condition

2 – Ground

Constant

Battery positive voltage

If the circuit is not as specified, inspect power source or wire
harness.

5.

INSPECT VANITY LIGHT CONTINUITY

Switch position

Tester connection

Specified condition

OFF (Closed)

–

No continuity

ON (Opened)

1 – 2

Continuity

If continuity is not as specified, replace the bulb or vanity light.

6.

INSPECT VANITY LIGHT SWITCH CIRCUIT

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

Tester connection

Condition

Specified condition

2 – Ground

Constant

Continuity

1 – Ground

Constant

Battery positive voltage

If the circuit is not as specified, inspect power source or wire
harness.

7.

INSPECT DOOR COURTESY SWITCH CONTINUITY

(a)

Check that continuity exists between terminals and the
switch body with the switch ON (switch pin released:
opened door).

(b)

Check that no continuity exists between terminals and the
switch body with the switch OFF (switch pin pushed in:
closed doors).

If operation is not as specified, replace the switch.

N21588

1

Wire Harness Side

e–1–1

N21589

1

2

N21589

2 1

N21590

Wire Harness Side

e–2–1

1

2

BE–48

–

BODY ELECTRICAL

INTERIOR LIGHT SYSTEM

1432

1997 LEXUS ES300 (RM511U)

8.

INSPECT DOOR COURTESY 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

Battery positive voltage

If the circuit is not as specified, inspect power source or wire
harness.

9.

INSPECT LUGGAGE COMPARTMENT DOOR COUR-
TESY SWITCH CONTINUITY

Switch position

Tester connection

Specified condition

Switch OFF

–

No continuity

Switch ON

2 – Body Ground

Continuity

If continuity is not as specified, replace the switch and motor.

10.

INSPECT LUGGAGE COMPARTMENT DOOR OPEN-
ER MOTOR OPERATION

Connect the positive (+) lead from the battery to terminal 1 and
the negative (–) lead to body ground, check that the motor oper-
ates.
If operation is not as specified, replace the switch and motor.

11.

INSPECT LUGGAGE COMPARTMENT DOOR COUR-
TESY SWITCH AND OPENER MOTOR CIRCUIT

Disconnect the connector from the switch and opener motor,
and inspect the connector on the wire harness side.

–

BODY ELECTRICAL

INTERIOR LIGHT SYSTEM

BE–49

1433

1997 LEXUS ES300 (RM511U)

Tester connection

Condition

Specified condition

1 – Ground

Luggage compartment door opener switch OFF

No voltage

1 – Ground

Luggage compartment door opener switch ON

Battery positive voltage

2 – Ground

Constant

Battery positive voltage

If the circuit is not as specified, inspect power source or wire
harness.
12.

INSPECT ILLUMINATED ENTRY SYSTEM
(See integration relay circuit on page

BE–20

)