Toyota Sequoia (2005). Manual - part 496

DIDEK–01

I28584

From
Battery

From
Ignition Switch

To Rear
Power Window
SW RH

PWR No. 3

Power Main

Driver Door ECU
(Power Window Master Switch)

To Rear
Power Window
SW LH

PWR No. 4

From
Battery

From
Battery

ECU–IG

PWR No.1

ECU–B

IG

+B

SIG

BDR

CPUB

CPU

Window
Lock
Switch

WLSW

MPX1

GND

MPX2

Passenger
Door ECU

Body ECU

Driver Door Power Window Motor

DOWN

UP

Pulse Sensor

Limit Switch

DU

DDN

PLS

LMT

SGND

CTYB

Driver Side Door
Courtesy Light

Remote Control Mirror LH

DM+R

DMHR

DMVR

LEFT

RIGHT

DOWN

UP

DVC

VSSR

HSSR

LE1

LSWD

KL

KUL

BEAN

Door Unlock
Detection Switch

Door Key Lock and
Unlock Switch

LSWE

DOWN

UP

OUT

IN

PCYL

Engine Room J/B

–

DIAGNOSTICS

DRIVER DOOR CONTROL SYSTEM

DI–1779

1973

SYSTEM DIAGRAM

DI1P8–07

Customer Problem Analysis

Vehicle Brought to Workshop

Problem Symptom Confirmation

Symptom Simulation

Symptom does not
occur

Circuit Inspection

Identification of Problem

Repair

Confirmation Test

End

Titles inside

are titles of pages in this

manual, with the page number indicated in
the bottom portion. See the indicated pages
for detailed explanations.

1

2

3

6

5

8

P. 

IN–24

P. 

DI–1904

P. 

DI–1781

P. 

DI–1788

 – 

DI–1813

Symptom
occurs

Step 6, 8: Diagnostic steps permitting use of the hand–held tester.

7

Multiplex Communication System Inspection *

4

Problem Symptoms Table

P. 

DI–1782

*: Confirm that there is no trouble by
    DTC check.

DI–1780

–

DIAGNOSTICS

DRIVER DOOR CONTROL SYSTEM

1974

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:
This ECU is connected to the multiplex communication system. Therefore, be sure to check that there is no
trouble in the multiplex communication system before performing the troubleshooting.

DI1P9–06

DRIVER DOOR CONTROL SYSTEM Check Sheet

Inspector’s name:

Customer’s Name

VIN

Licence Plate No.

Production Date

Odometer Reading

             /               /

km
mile

Weather Conditions
When Problem
Occurred

Frequency Problem Occurs

Weather

                              /                                /

 Once only

Brought in

Malfunction
System

Outdoor Temperature

 Fine   

   

 Cloudy     

 

Rainy     

 

Snowy

 Various/Others

 Hot       

 

Warm         Cool

 Cold (Approx.     

°

F (     

°

C))

 Constant          Sometimes (    times per     day, month)

 Power Window Control System

 Power Door Lock Control System

 Theft Deterrent System

 Other

 Jam Protection System

 Driver Side Door Courtesy Light System

 Remote Control Mirror LH System

–

DIAGNOSTICS

DRIVER DOOR CONTROL SYSTEM

DI–1781

1975

CUSTOMER PROBLEM ANALYSIS CHECK

DI1PC–06

DI–1782

–

DIAGNOSTICS

DRIVER DOOR CONTROL SYSTEM

1976

PROBLEM SYMPTOMS TABLE

POWER WINDOW CONTROL SYSTEM

Symptom

Suspected Area

See page

All the power windows do not operate.

4. Power source circuit

5. Window lock switch circuit

6. Body ECU

DI–1788

DI–1805

IN–35

Power window does not operate.

1. Power source circuit

2. Power window motor circuit

3. Window lock switch circuit

4. Driver door ECU

DI–1788

DI–1798

DI–1805

IN–35

Auto up (or down) function does not operate.

1. Power source circuit

2. Driver door ECU

DI–1788

IN–35

Jam protection function and auto up (or down) function do not

operate.

1. Jam protection limit switch circuit

2. Jam protection pulse sensor circuit

3. Driver door ECU

DI–1800

DI–1803

IN–35

OTHER

Symptom

Suspected Area

See page

Door parts do not function.

1. Power source circuit

2. Driver door ECU

DI–1788

IN–35

Door key related function does not operate.

1. Door key lock and unlock switch circuit

2. Driver door ECU

DI–1794

IN–35

Courtesy light does not come on.

(driver’s)

1. Door courtesy light circuit

2. Driver door ECU

DI–1796

IN–35

Remote control mirror LH does not operate.

(w/ Driving position memory)

1. Remote control mirror motor LH circuit

2. Remote control mirror position sensor LH circuit

3. Driver door ECU

DI–1808

DI–1810

IN–35

Door lock control does not operate.

1. Door unlock detection switch circuit

2. Door lock motor circuit

3. Driver door ECU

DI–1791

DI–1720

IN–35