Lexus ES300 (1997 year). Manual - part 413

N22050

Luggage Compartment
Door Opener Switch

Theft Deterrent ECU

TO

2

T3

L

IF1

2

L

1

N14872

1(+)

–

DIAGNOSTICS

THEFT DETERRENT SYSTEM

DI–429

581

1997 LEXUS ES300   (RM511U)

Luggage Compartment Door Opener Motor Circuit

CIRCUIT DESCRIPTION

This circuit unlocks the luggage compartment door when the ECU sends signals to the luggage compart-
ment door opener motor.

WIRING DIAGRAM

INSPECTION PROCEDURE

1

Check voltage between terminal 1 of luggage compartment door opener motor
and body ground.

PREPARATION:
Disconnect the courtesy switch and opener motor connector.
CHECK:
Measure voltage between terminal 1 of luggage compartment
door opener motor and body ground, when opener switch is
pulled and not pulled.
OK:

Opener switch

Voltage

Pulled

5 – 14 V

Not pulled

Below 1 V

NG

Check harness and connectors between ECU
and luggage compartment door opener motor
(See page 

IN–27

).

DI026–01

N22044

1

DI–430

–

DIAGNOSTICS

THEFT DETERRENT SYSTEM

582

1997 LEXUS ES300   (RM511U)

OK

2

Check luggage compartment door opener motor.

PREPARATION:
Disconnect luggage compartment door courtesy switch and
opener motor connector.
CHECK:
Connect positive (+) lead from the battery to terminal 1 and the
negative (–) lead to the body ground.
OK:
Operated motor shaft and gear.
HINT:
Perform inspection in a short time (within 1 second).

NG

Replace luggage compartment door opener
motor.

OK

Proceed to next circuit inspection shown on
matrix chart (See page 

DI–405

).

N22070

Luggage Compartment
Door 

Opener Main Switch

Luggage Compartment Door
Opener Switch and Fuel Lid
Opener Switch

FL MAIN
3.0W

Battery

FL
BLOCK

TSW

14

L–Y

1

BL

J/C
J16

Instrument Panel
J/B

T4

2

R

5

LL

4

BF

LF

A

A

F6

F11 1

1

AL

T

B–G

B–R

1B

1D

4

20A DOOR

L–W

C

A

J/C

J34

J35

R–W

W–B

2

W–B

IG

BP

W–B

Fuel Lid
Opener
Solenoid

2

1

R–W

IF1

L–W

100A

Theft Deterrent ECU

–

DIAGNOSTICS

THEFT DETERRENT SYSTEM

DI–431

583

1997 LEXUS ES300   (RM511U)

Luggage Compartment Door Opener Main Switch and Opener
Switch Circuit

CIRCUIT DESCRIPTION

The luggage compartment door opener main switch is off when it is pushed in, and the luggage compartment
door opener switch is on when it is pulled.
The ECU energizes the luggage compartment door opener solenoid only when the main switch and opener
switch are together.

WIRING DIAGRAM

DI027–01

N14891

2(–)

1(+)

Luggage Compartment
Door Opener Main Switch

N22045

Luggage Compartment Door
Opener Switch

4

5

DI–432

–

DIAGNOSTICS

THEFT DETERRENT SYSTEM

584

1997 LEXUS ES300   (RM511U)

INSPECTION PROCEDURE

1

Check luggage compartment door opener main switch and opener switch.

PREPARATION:
Disconnect the luggage compartment door opener main switch
and opener switch connector.
CHECK:
(a)

Check luggage compartment door opener main switch.

(b)

Check continuity between terminals of main switch con-
nector.

OK:

Switch position

Tester connection

Specified condition

ON

1 – 2

Continuity

OFF

–

No continuity

CHECK:
(a)

Check luggage compartment door opener switch.

(b)

Check continuity between terminals of main switch and
opener switch connector.

OK:

Switch position

Tester connection

Specified condition

ON

4 – 5

Continuity

OFF

–

No continuity

NG

Replace luggage compartment door opener
main switch and/or opener switch.

OK

2

Check harness and connector between ECU and main switch, opener switch and
body ground (See page 

IN–27

).

NG

Repair or replace harness or connector.

OK

Proceed to next circuit inspection shown on
matrix chart (See page 

DI–405

).