Toyota Sequoia (2005). Manual - part 500

–

DIAGNOSTICS

DRIVER DOOR CONTROL SYSTEM

DI–1795

1989

INSPECTION PROCEDURE

1

Check the door key lock and unlock switch (See page 

BE–79

).

NG

Replace the door key lock and unlock switch.

OK

2

Check wire harness and connector between door key lock and unlock switch
and driver door ECU (See page 

IN–35

).

NG

Repair or replace wire harness or connector.

OK

Proceed to next circuit inspection shown in
problem symptoms table (See page 

DI–1686

).

I18709

D22
Driver Door ECU

D10
Door Courtesy Light Front LH

CTYB

DCYL

5

6

R

R–W

1

2

DI–1796

–

DIAGNOSTICS

DRIVER DOOR CONTROL SYSTEM

1990

Door courtesy light circuit

CIRCUIT DESCRIPTION

The door courtesy light comes on when the door is opened and goes off when the door is closed.

WIRING DIAGRAM

DI1PI–18

–

DIAGNOSTICS

DRIVER DOOR CONTROL SYSTEM

DI–1797

1991

INSPECTION PROCEDURE

1

Check door courtesy light operation.

CHECK:
Check that the door courtesy light comes on when the door is opened, and goes off when the door is closed.
OK:

Door courtesy light normally operates.

OK

Proceed to next circuit inspection shown in
problem symptoms table (See page 

DI–1782

).

NG

2

Check door courtesy light (See page 

BE–40

).

NG

Replace the door courtesy light.

OK

3

Check wire harness and connector between door courtesy light and driver door
ECU (See page 

IN–35

).

NG

Repair or replace wire harness or connector.

OK

Proceed to next circuit inspection shown in
problem symptoms table (See page 

DI–1782

).

I28452

D22
Driver Door ECU

P6
Power Window Motor
Front LH

DDN

DU

14

1

G

R

2

1

DI–1798

–

DIAGNOSTICS

DRIVER DOOR CONTROL SYSTEM

1992

Power window motor circuit

CIRCUIT DESCRIPTION

The power window goes down when voltage is applied to terminal 2 of the power window motor, and the
window goes up when voltage is applied to terminal 1.

WIRING DIAGRAM

DI1PJ–09