Lexus ES300 (1997 year). Service manual - part 245

BE5710

Wire Harness Side

1

2

BE–44

–

BODY ELECTRICAL

ILLUMINATION LIGHT SYSTEM

1428

1997 LEXUS ES300   (RM511U)

5.

INSPECT GLOVE BOX LIGHT SWITCH CIRCUIT

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

Tester connection

Condition

Specified condition

2 – Ground

Constant

Continuity

1 – Ground

Light control switch position OFF

No voltage

1 – Ground

Light control switch position TAIL or HEAD

Battery positive voltage

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

Z19395

E/G Room Junction Block

 DOME Fuse

Door Courtesy Switch

Instrument Panel
Junction Block

 Integration Relay

Personal Light

Vanity Light

Vanity Light

Door Courtesy Switch

Courtesy Light

Courtesy Light

Luggage Compartment
Light

Luggage Compartment
Door Courtesy Switch
and Opener Motor

BE057–01

–

BODY ELECTRICAL

INTERIOR LIGHT SYSTEM

BE–45

1429

1997 LEXUS ES300   (RM511U)

INTERIOR LIGHT SYSTEM

LOCATION

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.