2001 TOYOTA SEQUOIA seat memory

Wire harness side
1
2
3
4
5
6
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
401
2
3
4
5
8 6
10
11
12
13
14
15
16
17
18
19
21
23
24
Terminal No.
Translate ECU
ECM
STA Fuse
Front Seat Inner Belt LH (Buckle Switch)
Overhead Module (Garage Door Opener)
Overhead Module (Garage Door Opener)
Washer Level Sensor
ECM
ECM (*1)
Transponder Key Computer
Body ECU
ECM
ECM
Tire Pressure Monitor ECU
Injector No. 1
Light Control Rheostat
ECM
Speed Sensor
4P OUT (Other Parts)
Fuel Sender Gauge
Oil Pressure Sender Gauge
IGN Fuse
Airbag Sensor Assembly
Memory Seat ECU and SW (*2)
Back Door ECU
Integration Control and Panel
Turn Signal Flasher Relay
Park/Neutral Position Switch
Airbag Sensor AssemblyTranslate ECU
Translate ECU
Skid Control ECU
4WD Control ECU
Alternator
Speed Sensor
Fuel Sender Gauge
Ground
Suspension Control ECU
Body ECU (*4)
Body ECU (*3)
Turn Signal Flasher Relay
Skid Control ECU
ECU±B Fuse
IGN1 Fuse Connectors:
Terminal No.
Wire harness side
C5
C64WD Control ECU
4WD Control ECU
Suspension Control ECU
Suspension Control ECU
Suspension Control ECU
*1: 4WD
*2: w/ Driving Position Memory
*3: w/ Daytime Running Light
*4: w/o Daytime Running LightPark/Neutral Position Switch
Park/Neutral Position Switch
Park/Neutral Position Switch
Park/Neutral Position Switch
Park/Neutral Position Switch DI±1624
± DIAGNOSTICSCOMBINATION METER SYSTEM
1818 Author: Date:
2005 SEQUOIA (RM1146U)

± DIAGNOSTICSBODY CONTROL SYSTEM
DI±1695
1889 Author: Date:
2005 SEQUOIA (RM1146U)MIRR POS SW L
Remote control mirror switch L
position/ON or OFF
ON: Remote control mirror switch
L position is selected
OFF: Remote control mirror switch
L position is not selected
±
MIRR POS SW UPRemote control mirror switch UP
position/ON or OFF
ON: Remote control mirror switch
UP position is selected
OFF: Remote control mirror switch
UP position is not selected
±
MIRR POS SW DWNRemote control mirror switch
DOWN position/ON or OFF
ON: Remote control mirror switch
DOWN position is selected
OFF: Remote control mirror switch
DOWN position is not selected
±
AUTO LIGHT SWLight control switch (AUTO)/ON or
OFF
ON: Light control switch position is
AUTO
OFF: Light control switch position
is not AUTO
±
HEAD LIGHT SWLight control switch (HEAD)/ON or
OFF
ON: Light control switch position is
HEAD
OFF: Light control switch position
is not HEAD
±
TAIL LIGHT SWLight control switch (TAIL)/ON or
OFF
ON: Light control switch position is
TAIL
OFF: Light control switch position
is not TAIL
±
ILLUMINATE RATEIllumination rate information/
MIN: 0 MAX: 99.99Condition value will be displayed
Normal value: 0.8 ms to 22.0 ms±
SEAT M1 SWMemory seat switch (M1)/ON or
OFF
ON: Memory seat switch position
is M1
OFF: Memory seat switch position
is not M1
±
SEAT M2 SWMemory seat switch (M2)/ON or
OFF
ON: Memory seat switch position
is M2
OFF: Memory seat switch position
is not M2
±
SEAT SET SWMemory seat switch (SET)/ON or
OFF
ON: Memory seat switch position
is SET
OFF: Memory seat switch position
is not SET
±
GLS BRK DETECTGlass breakage sensor/ON or
OFF
ON: Glass breakage sensor oper-
ates
OFF: Glass breakage sensor does
not operate
±
WIRELESS OPERWireless door lock control func-
tion/ON or OFF
ON: Wireless door lock function
operated
OFF: Wireless door lock function
not operated
±
OPEN DOOR WARNDOOR indicator light/ON or OFFON: Any door is open
OFF: All doors are closed±
AUTO LOCK DELAYAuto lock delay/60s or 30sCustomized value will be dis-
played±
UNLOCK/2OPER2 time operation wireless unlock
signal/ON or OFFCustomized condition will be dis-
played±

DI94R±07
I28393
Hood Courtesy Switch Engine Room J/B
 ECU±B Fuse
 Door No. 2 Fuse
 H±LP RH Fuse (*2)
 H±LP LH Fuse (*2)
 DRL Fuse (*1)
Rear Washer Motor
Horn
Headlight
Rear washer switch
Ignition Switch
 Key Unlock Switch
DLC3 Body ECU
Instrument Panel J/B
 ECU±IG Fuse
 RAD No. 2 Fuse
 FOG Fuse
 FOG LIGHT Relay
 POWER MAIN Relay
 WSH Fuse
 STOP Fuse
 TAILLIGHT Relay Back Door Power
Window SwitchTheft Horn
Engine Room R/B
No.2
 DIMMER Relay
 DRL No. 4 Relay
 H±LP RH Fuse (*1)
 H±LP LH Fuse (*1)
 H±LP RL Fuse (*1)
 H±LP LL Fuse (*1)
Fog Light
Wireless Door
Control Receiver Wireless Door Lock Buzzer
Combination Meter Memory Seat Switch
(*1): w/ Daytime Running Light
(*2): w/o Daytime Running Light (Located behind
the instrument panel)
(Located behind
the heater control panel)
 DOME Fuse
 HEAD Relay
 HORN Relay
 DOME Fuse
Automatic Light Control Sensor
Stop Light Switch
Remote Control Mirror SwitchGlass Breakage
Sensor Microphone Glass Breakage
Sensor ECU
Combination Switch
 Light Control Switch
 Headlight Dimmer Switch
 Fog Light Switch DI±1698
± DIAGNOSTICSBODY CONTROL SYSTEM
1892 Author: Date:
2005 SEQUOIA (RM1146U)
PARTS LOCATION

I28525
D24
Driving Position
Memory Switch
MM
M1
M2 Body ECU
B624
1
2
3 MRY
M1
M2 SET
J8 J/C
IEW±BAB6
B623
22
41
2L
L±Y
G
E DI±1772
± DIAGNOSTICSBODY CONTROL SYSTEM
1966 Author: Date:
2005 SEQUOIA (RM1146U)
Driving position memory switch circuit (w/ Driving position
memory)
CIRCUIT DESCRIPTION
The position control ECU & switch assy memorizes the driver seat position and the outer mirror positions.
It controls each motor when the driving position memory switch is operated.
The position signals of the driving position memory switch received by the body ECU are sent to the position
control ECU and switch assy via BEAN.
WIRING DIAGRAM
DID9D±01

DIDF7±01
I28466
DLC 3Front
Passenger
Door ECUBody ECU
A/C ECU Combination
MeterBack Door
ECUDriver Door
ECU
MPX1
MPX2
MPX3
Slide Roof
ECU Memory
Seat ECU
& SwitchMPX1 MPX2 MPX1 MPX2 MPX1 MPX2
MPX± MPX+
MPX1 MPX1
SILAutomatic Light
Control Sensor
Wireless Door
Control Receiver
Airbag Sensor Assy
Diagnostic Bus
BEANCLTS
CLTB
CLTE
PRG
GSW
OBD2PDA DI±1888
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
2082 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DIAGRAM

DI3IO±11
Customer Problem Analysis
Vehicle Brought to Workshop
Problem Symptom ConfirmationSymptom Simulation Problem does not
occur
Check DTC
Normal code
Problem Symptoms Table
Identification of Problem
Repair
Confirmation Test
EndTitles 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
23
4
6
8P. IN±24
*1P. DI±1893
P. DI±1904Malfunction code
Problem
occurs
Circuit Inspection
P. DI±1908 ± DI±1952
See page
Body control system
Driver door control system
Passenger door control systemSystem
DI±1682
DI±1780
DI±1816
DI±1610
Step 4, 8: Diagnostic steps permitting the use of the hand±held tester.*15
7
Combination meter system
Slide roof control system
DI±1662 DI±1852 Back door control system
Power seat control system
w/ Driving position memoryDI±1505
Supplemental restraint system
Air conditioning systemDI±1126
DI±2301 DI±1892
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
2086 Author: Date:
2005 SEQUOIA (RM1146U)
HOW TO PROCEED WITH TROUBLESHOOTING
Perform troubleshooting in accordance with the procedure on the following page.

DI3IP±10
MULTIPLEX COMMUNICATION SYSTEM Check Sheet
Inspector 's name:
Customer 's Name
Date VehicleVIN
Production Date
Licence Plate No.
Odometer Reading / /km
mile
Weather Conditions
When Problem
Occurred
Date Problem First 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)
Driver Door Control System
Passenger Door Control System
Combination Meter System
Body Control System
Back Door Control System
Slide Roof Control System
Power Seat Control System (w/ Driving Position Memory)
Supplemental Restraint System
Air Condition System
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1893
2087 Author: Date:
2005 SEQUOIA (RM1146U)
CUSTOMER PROBLEM ANALYSIS CHECK

I27716
M7
M6
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1901
2095 Author: Date:
2005 SEQUOIA (RM1146U)
7. CHECK MEMORY SEAT ECU & SWITCH (w/ Driving Position Memory)
(a) Disconnect the M6 and M7 ECU connectors.
(b) Measure the resistance or voltage of each terminal of the wire harness side connector.
Standard:
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSpecified Condition
MPX1 (M6±1) ± Body groundW ± Body groundMPX lineAlways10 kW or higher
IG (M6±4) ± Body groundB±R ±
Body groundIgnition power supplyIgnition switch ON10 to 14 V
SYSB (M6±8) ± Body groundW±R ±
Body ground+B (BATT) power supplyAlways10 to 14 V
GND (M7±1) ± Body groundW±B ±
Body groundGroundAlwaysBelow 1 W
+B (M7±5) ± Body groundL±O ±
Body ground+B (BATT) power supplyAlways10 to 14 V
If the result is not as specified, there may be a malfunction on the wire harness side.