2001 TOYOTA SEQUOIA Service Repair Manual

jacking points sat nav height adjustment towing capacity air condition ECU

Page 2057 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DID9H±01
I18655
BACK DOOR ECU:
B11
B10
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
DI±1855
2049 Author: Date:
2005 SEQUOIA (RM1146U)
TERMINALS OF ECU
Symbols (Terminal No.)Wiring ColorTerminal De-
sc

Page 2058 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±1856
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
2050 Author: Date:
2005 SEQUOIA (RM1146U) BDUP e BDDN
(B10±13 e B10±25)
P e W
Back door pow-
er window motor
(UP)
Back door power window operatin

DI±1856
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
2050 Author: Date:
2005 SEQUOIA (RM1146U) BDUP e BDDN
(B10±13 e B10±25)
P e W
Back door pow-
er window motor
(UP)
Back door power window operating upward10 to 14 V
BDDN e BDUP
(B10±25 e B10±13)W e P
Back door pow-
er window motor
(DOWN)
Back door power window not operatingBelow 1.0 V
BDDN e BDUP
(B10±25 e B10±13)W e P
Back door pow-
er window motor
(DOWN)
Back door power window operating downward10 to 14 V
LSWB e LSWE
(B10±6 e B10±22)R±L e R±Y
Back door un-
lock detection
switchBack door unlock detection switch ON (Back door lock
unlocked)Below 1.0 V
LSWB e LSWE
(B10±6 e B10±22)R±L e R±Y
Back door un-
lock detection
switchBack door unlock detection switch OFF (Back door lock
locked)10 to 14 V
P e SGND
(B10±12 e B10±18)L±W e L±RRear wiper posi-
tion switchRear wiper arm not in store position10 to 14 V
P e SGND
(B10±12 e B10±18)L±W e L±RRear wiper posi-
tion switchRear wiper arm in store positionBelow 1.0 V
SGND e Body ground
(B10±18 e Body ground)L±R e Body
groundGroundAlwaysBelow 1.0 V
W e SGND
(B10±3 e B10±18)L±B e L±RRear wiper re-
verse switchRear wiper arm not in stopping and reversing positionBelow 1.0 V
W e SGND
(B10±3 e B10±18)L±B e L±RRear wiper re-
verse switchRear wiper arm between stopping and reversing position10 to 14 V
WIP± e SGND
(B10±1 e B10±18)L±O e L±RRear wiper mo-
torRear wiper motor not operatingBelow 1.0 V
WIP± e SGND
(B10±1 e B10±18)L±O e L±RRear wiper mo-
torRear wiper motor rotates reversely10 to 14 V
WIP+ e SGND
(B10±2 e B10±18)L±Y e L±RRear wiper mo-
torRear wiper motor not operatingBelow 1.0 V
WIP+ e SGND
(B10±2 e B10±18)L±Y e L±RRear wiper mo-
torRear wiper motor rotates10 to 14 V
GND e Body ground
(B11±3 e Body ground)W±B e Body
groundGroundAlwaysBelow 1.0 V
MPX1 e ±
(B11±2 e ± )LG±R e ±Multiplex com-
munication lineMultiplex communication circuit±
MPX2 e ±
(B11±1 e ± )B e ±Multiplex com-
munication lineMultiplex communication circuit±
ILE e GND
(B11±8 e B11±3)W e W±BIllumination sig-
nalRear room light switch OFFBelow 1.0 V
ILE e GND
(B11±8 e B11±3)W e W±BIllumination sig-
nalRear room light switch ON or DOOR10 to 14 V
ACT± e ACT+
(B10±14 e B10±15)L±R e L±BBack door lock
motorBack door lock motor not operatingBelow 1.0 V
ACT± e ACT+
(B10±14 e B10±15)L±R e L±BBack door lock
motorBack door lock motor rotates reversely10 to 14 V
ACT+ e ACT±
(B10±15 e B10±14)L±B e L±RBack door lock
motorBack door lock motor not operatingBelow 1.0 V
ACT+ e ACT±
(B10±15 e B10±14)L±B e L±RBack door lock
motorBack door lock motor rotates reversely10 to 14 V

Page 2059 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual I28583
GND
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
DI±1857
2051 Author: Date:
2005 SEQUOIA (RM1146U) DSV e DSG
(B10±11 e B10±23)
LG±B e W±R
Back door pow-
er window pulse
sensor
Ignition switc

Page 2060 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DID9I±01
DI±1858
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
2052 Author: Date:
2005 SEQUOIA (RM1146U)
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
According to the DATA LIST displayed by the hand±he

DID9I±01
DI±1858
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
2052 Author: Date:
2005 SEQUOIA (RM1146U)
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
According to the DATA LIST displayed by the hand±held tester, you can read the value of the switch, sensor,
actuator and so on without parts removal. Reading the DATA LIST as the first step of troubleshooting is one
of the methods to shorten labor time.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) According to the display on the tester, read the DATA LIST.
BACK±DOOR:
ItemMeasurement Item/
Display (Range)Normal ConditionDiagnostic Note
COURTSY SW
Back door courtesy
light SW signal/ON or
OFFON: Back door is open
OFF: Back door is closed±
LOCK POS SWLock position SW sig-
nal/ON or OFFON: Door lock is in unlock position
OFF: Door lock is in lock position±
WIPER TURN SW
Rear wiper reversing
position switch/ON or
OFFON: Rear wiper reverse position
OFF: Rear wiper non±reverse position±
WIPER RTRCT SWRear wiper position
switch/ON or OFFON: Rear wiper arm in store position
OFF: Rear wiper arm not in store position±
KEY SW (UNLOCK)Unlock SW linked with
the key/ON or OFFON: Back door lock is in unlock position
OFF: Back door lock is in lock position±
KEY SW (LOCK)Unlock SW linked with
the key/ON or OFFON: Back door lock is in lock position
OFF: Back door lock is in unlock position±
UP/DOOR KEY
Back door key lock
and unlock switch
linked window open
and close/AVAIL or
NOT AVL
AVAIL: Key±linked open and close SET
NOT AVL: Key±linked open and close UNSET*1
DOWN/DOOR KEY
Back door key lock
and unlock switch
linked window open
and close/AVAIL or
NOT AVL
AVAIL: Key±linked open and close SET
NOT AVL: Key±linked open and close UNSET*1
P/W POSITION
Back door power win-
dow position/CLOSE
or OPENCLOSE: Back door power window is fully closed
OPEN: Back door power window is opened±
GLASS POS±1/4
Back door power win-
dow glass position
(Fully closed ± 1/4
open): OK or CAU-
TIONOK: Power window is going UP by manual operation
CAUTION: CAUTION may be displayed even when no resis-
tance is applied in each position. In this case there is a for-
eign object stuck in that position.
±
GLASS POS±2/4
Back door power win-
dow glass position
(Fully closed ± 2/4
open): OK or CAU-
TIONOK: Power window is going UP by manual operation
CAUTION: CAUTION may be displayed even when no resis-
tance is applied in each position. In this case there is a for-
eign object stuck in that position.
±
GLASS POS±3/4
Back door power win-
dow glass position
(Fully closed ± 3/4
open): OK or CAU-
TIONOK: Power window is going UP by manual operation
CAUTION: CAUTION may be displayed even when no resis-
tance is applied in each position. In this case there is a for-
eign object stuck in that position.
±

Page 2061 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual ± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
DI±1859
2053 Author: Date:
2005 SEQUOIA (RM1146U)
*1: When the ignition key is not in the key cylinder and the back door is locked, turning and holding the

Page 2062 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI57F±07
I28390
Engine Room J/B
ECU±B Fuse
Back Door ECUBack Door Power Window Regulator AssemblyRear Wiper Motor Instrument Panel J/B
ECU±IG Fuse
AM1 Fuse
PWR No. 5 Fuse
Back Door Power

Page 2063 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI57I±08
I28430
SIG 6
15B11
1FECU±IG
W±L
BI18
Ignition SW
2
F10
Fusible Link Block1 4Back Door ECU
B±R B±R
B±R B±R J37
J/C
AA11
BD2 BF15
B±R
BDR
BECU
GND 1C4
B±YAM1 IG1
1L1
1C6
1G
12AM1
12
PW

Page 2064 of 4323

TOYOTA SEQUOIA 2001 Service Repair Manual DI±1862
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
2056 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check PWR No. 5, ECU±B, AM1 and ECU±IG fuse.
CHECK:
Check continuity of the PWR N

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