2001 TOYOTA SEQUOIA Service Repair Manual

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Page 1713 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DIDGG±01
± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)DI±1511
1705 Author: Date:
2005 SEQUOIA (RM1146U)
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the DATA LIST dis

DIDGG±01
± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)DI±1511
1705 Author: Date:
2005 SEQUOIA (RM1146U)
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the DATA LIST displayed on the hand±held tester, you can read the value of the switch, sensor, etc.
without parts removal. Reading the DATA LIST as the first step of troubleshooting is one way to shorten the
labor time.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) Read the DATA LIST according to the display on the tester.
D±SEAT:
ItemMeasurement Item/
Display (Range)Normal Condition
RECLIN SW REARReclining switch signal (Rearward)/
ON or OFFON: Reclining switch (Rearward) is ON
OFF: Reclining switch (Rearward) is OFF
RECLIN SW FRONTReclining switch signal (Forward)/
ON or OFFON: Reclining switch (Forward) is ON
OFF: Reclining switch (Forward) is OFF
F VTCL SW DOWNFront vertical switch signal (Downward)/
ON or OFFON: Front vertical switch (Downward) is ON
OFF: Front vertical switch (Downward) is OFF
F VTCL SW UPFront vertical switch signal (Upward)/
ON or OFFON: Front vertical switch (Upward) is ON
OFF: Front vertical switch (Upward) is OFF
LIFTER SW DOWNLifter switch signal (Downward)/
ON or OFFON: Lifter switch (Downward) is ON
OFF: Lifter switch (Downward) is OFF
LIFTER SW UPLifter switch signal (Upward)/
ON or OFFON: Lifter switch (Upward) is ON
OFF: Lifter switch (Upward) is OFF
SLIDE SW REARSliding switch signal (Rearward)/
ON or OFFON: Sliding switch (Rearward) is ON
OFF: Sliding switch (Rearward) is OFF
SLIDE SW FRONTSliding switch signal (Forward)/
ON or OFFON: Sliding switch (Forward) is ON
OFF: Sliding switch (Forward) is OFF
POWER VOLTAGEPower supply for position control ECU & switch/
MIN: 0 V, MAX: 19.89 VWithin range from 11 V to 14 V
IG SWIgnition switch status/
ON or OFFON Ignition switch is ON
OFF: Ignition switch is OFF
KEY UNLOCK SWKey unlock warning switch signal/
ON or OFFON: Key is in ignition key cylinder
OFF: Key is not in ignition key cylinder
D±DOOR WARN SWDoor courtesy switch signal/
ON or OFFON: Driver side door is open
OFF: Driver side door is closed
PNP SWPark/neutral position switch signal/
ON or OFFON: Shift lever in neutral position
OFF: Shift lever in any position except neutral
M2 SWSeat memory switch M2 signal/
ON or OFFON: Seat memory switch M2 is ON
OFF: Seat memory switch M2 is OFF
M1 SWSeat memory switch M1 signal/
ON or OFFON: Seat memory switch M1 is ON
OFF: Seat memory switch M1 is OFF
SET SWSeat memory set switch signal/
ON or OFFON: Memory set switch is ON
OFF: Memory set switch is OFF
SLIDE POSSeat sliding position/
MIN: ±4096, MAX: 4096Within range from ±4096 to 4096
RECLN POSSeatback position/
MIN: ±4096, MAX: 4096Within range from ±4096 to 4096
F VTCL POSSeat front vertical position/
MIN: ±4096 MAX: 4096Within range from ±4096 to 4096
LIFTER POSSeat lifter position/
MIN: ±4096 MAX: 4096Within range from ±4096 to 4096
MEM M1 SW
Driving position memorized with seat memory
switch M1/
MEM or NOT MEMMEM: Memorized
NOT MEM: Not memorized

Page 1714 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±1512± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
1706 Author: Date:
2005 SEQUOIA (RM1146U)MEM M2 SW
Driving position memorized with seat memory
switch M2/
MEM or NOT M

DI±1512± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
1706 Author: Date:
2005 SEQUOIA (RM1146U)MEM M2 SW
Driving position memorized with seat memory
switch M2/
MEM or NOT MEMMEM: Memorized
NOT MEM: Not memorized
SEAT MEM M1
Seat position memorized with seat memory
switch M1/
MEM or NOT MEMMEM: Memorized
NOT MEM: Not memorized
SEAT MEM M2
Seat position memorized with seat memory
switch M2/
MEM or NOT MEMMEM: Memorized
NOT MEM: Not memorized
D±MIRR MEM1
Driver side mirror position memorized with seat
memory switch M1/
MEM or NOT MEMMEM: Memorized
NOT MEM: Not memorized
D±MIRR MEM2
Driver side mirror position memorized with seat
memory switch M2/
MEM or NOT MEMMEM: Memorized
NOT MEM: Not memorized
P±MIRR MEM M1
Passenger side mirror position memorized with
seat memory switch M1/
MEM or NOT MEMMEM: Memorized
NOT MEM: Not memorized
P±MIRR MEM M2
Passenger side mirror position memorized with
seat memory switch M2/
MEM or NOT MEMMEM: Memorized
NOT MEM: Not memorized
SLIDE MEM POS 1
Seat sliding position memorized with seat
memory switch M1/
MIN: ±4096, MAX: 4096
Within range from ±4096 to 4096
RECLIN MEM POS 1
Seat back position memorized with seat memory
switch M1/
MIN: ±4096, MAX: 4096
Within range from ±4096 to 4096
F VTCL MEM POS 1
Front vertical position memorized with seat
memory switch M1/
MIN: ±4096, MAX: 4096
Within range from ±4096 to 4096
LIFTER MEM POS 1
Lifter position memorized with seat memory
switch M1/
MIN: ±4096, MAX: 4096
Within range from ±4096 to 4096
SLIDE MEM POS 2
Seat sliding position memorized with seat
memory switch M2/
MIN: ±4096, MAX: 4096
Within range from ±4096 to 4096
RECLIN MEM POS 2
Seatback position memorized with seat memory
switch M2/
MIN: ±4096, MAX: 4096
Within range from ±4096 to 4096
F VTCL MEM POS 2
Front vertical position memorized with seat
memory switch M2/
MIN: ±4096, MAX: 4096
Within range from ±4096 to 4096
LIFTER MEM POS 2
Lifter position memorized with seat memory
switch M2/
MIN: ±4096, MAX: 4096
Within range from ±4096 to 4096
D±MIRR MEM POS 1
Driver side mirror position memorized with seat
memory switch M1/
MIN: 0, MAX: 65535
Within range from 0 to 65535
P±MIRR MEM POS 1
Passenger side mirror position memorized with
seat memory switch. M1/
MIN: 0, MAX: 65535
Within range from 0 to 65535
D±MIRR MEM POS 2
Driver side mirror position memorized with seat
memory switch M2/
MIN: 0, MAX: 65535
Within range from 0 to 65535
P±MIRR MEM POS 2
Passenger side mirror position memorized with
seat memory switch M2/
MIN: 0, MAX: 65535
Within range from 0 to 65535

Page 1715 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)DI±1513
1707 Author: Date:
2005 SEQUOIA (RM1146U)
2. ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand±held tester

Page 1716 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DIDE6±01
DI±1514± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
1708 Author: Date:
2005 SEQUOIA (RM1146U)
CIRCUIT INSPECTION
ECU power source circuit
CIRCUIT DESCRIPTION
Th

Page 1717 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual I28446
B±R
W±B W±RW±L
W±B W±RW±RW±R
W±R B±R
B±R B±R
W±R L±O L±O L±O
L±O
B±Y B±R
L±O
1 2
34 5
68
5
4A
B CF
I
W
B A
A A
BB
W±B 8 11
3L CG
1C
1E 1F
1G
1J
2C 2D3A 3C
1L
1C 3A 3A
4
164

Page 1718 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±1516± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
1710 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check fuse (PWR SEAT, ECU±IG, AM1).
PREPARATION:
Rem

Page 1719 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual I28698
Position Control ECU & Switch Assy
Wire Harness Side
Connector Front View:
M7
M6
GND
+BIG
SYSB
± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)DI±1517
1711 Author: Date

Page 1720 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual I28447
D24
Seat Memory SwitchBody ECU
SET
4 3 2 1
W±BL
L±Y
G23
22 24
B6
AM1
M2 MM
B6
B6 1
2
EJ8 J/C
IE M1
M2 MRY DI±1518
± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
1712 A

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