Toyota Sequoia (2005). Manual — part 496
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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
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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.
P.
P.
P.
Symptom
occurs
Step 6, 8: Diagnostic steps permitting use of the hand–held tester.
7
Multiplex Communication System Inspection *
4
Problem Symptoms Table
P.
*: 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.
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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
![](/vehicles/linovind/vere/fry/veed.png)
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
Power window does not operate.
1. Power source circuit
2. Power window motor circuit
3. Window lock switch circuit
4. Driver door ECU
Auto up (or down) function does not operate.
1. Power source circuit
2. Driver door ECU
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
OTHER
Symptom
Suspected Area
See page
Door parts do not function.
1. Power source circuit
2. Driver door ECU
Door key related function does not operate.
1. Door key lock and unlock switch circuit
2. Driver door ECU
Courtesy light does not come on.
(driver’s)
1. Door courtesy light circuit
2. Driver door ECU
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
Door lock control does not operate.
1. Door unlock detection switch circuit
2. Door lock motor circuit
3. Driver door ECU
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