Toyota Sequoia (2005). Manual — part 505

DIDES–01

I28585

Power Main

From
Battery

To Rear
Power Window
SW RH

PWR No. 3

To Rear
Power Window
SW LH

PWR No. 4

Passenger Door ECU
(Power Window Switch Assembly)

Driver Door ECU

Back Door ECU

Front Passenger
Courtesy Light

BEAN

Door Unlock
Detection Switch

Door Key Lock and
Unlock Switch

LSW

MPX2

GND

MPX1

CTYB

LSWP

PKL

PKUL

PCYL

From
Battery

From
Ignition SW

From
Battery

ECU–IG

PWR

ECU–B

Passenger Door Power Window Motor

DOWN

UP

Pulse Sensor

Limit Switch

Remote Control Mirror RH

LEFT

RIGHT

DOWN

UP

DOWN

UP

OUT

IN

SIG

BDR

CPUB

PU

PDN

PLS

LMT

SGND

PM+R

PMHR

PMVR

PVC

VSSR

HSSR

RE1

Instrument
Panel J/B

LSWE

–

DIAGNOSTICS

PASSENGER DOOR CONTROL SYSTEM

DI–1815

2009

SYSTEM DIAGRAM

DI1PP–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–1817

P.

DI–1826

–

DI–1849

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–1818

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

DI–1816

–

DIAGNOSTICS

PASSENGER DOOR CONTROL SYSTEM

2010

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.

DI1PT–06

PASSENGER DOOR CONTROL SYSTEM Check Sheet

Inspector’s name:

Customer’s Name

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

VIN

Licence Plate No.

Production Date

Front Passenger Side Door Courtesy Light System

Remote Control Mirror RH System

–

DIAGNOSTICS

PASSENGER DOOR CONTROL SYSTEM

DI–1817

2011

CUSTOMER PROBLEM ANALYSIS CHECK

DI1PV–06

DI–1818

–

DIAGNOSTICS

PASSENGER DOOR CONTROL SYSTEM

2012

PROBLEM SYMPTOMS TABLE

POWER WINDOW CONTROL SYSTEM

Symptom

Suspected Area

See page

Power window does not operate.

1. Power source circuit

2. Power window motor circuit

3. Window lock switch circuit

4. Passenger door ECU

DI–1826

DI–1836

DI–1843

IN–35

Auto up (or down) function does not operate.

1. Power source circuit

2. Passenger door ECU

DI–1826

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. Passenger door ECU

DI–1838

DI–1841

IN–35

OTHER

Symptom

Suspected Area

See page

Door parts do not function.

1. Power source circuit

2. Passenger door ECU

DI–1826

IN–35

Door key related function does not operate.

1. Door key lock and unlock switch circuit

2. Passenger door ECU

DI–1832

IN–35

Courtesy light does not come on.

(Passenger’s)

1. Door courtesy light circuit

2. Passenger door ECU

DI–1834

IN–35

Remote control mirror RH does not operate.

(w/ Driving position memory)

1. Remote control mirror motor RH circuit

2. Remote control mirror position sensor RH circuit

3. Passenger door ECU

DI–1845

DI–1847

IN–35

Door lock control does not operate.

1. Door unlock detection switch circuit

2. Door lock motor circuit

3. Passenger door ECU

DI–1829

DI–1720

IN–35