2001 TOYOTA SEQUOIA wiring diagram

H02751
Airbag Sensor Assembly S27
Curtain Shield Airbag
Sensor Assembly RH
A2121
W
2
A2119
B
1 VUCR
ESCRVUCR
ESCR DI±1192
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1386 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1630/23 Curtain Shield Airbag Sensor (RH)
Malfunction
CIRCUIT DESCRIPTION
The curtain shield airbag sensor assembly RH consists of the safing sensor the diagnostic circuit, the lateral
deceleration sensor, etc.
If the airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether
or not the SRS should be activated.
DTC B1630/23 is recorded when a malfunction is detected in the curtain shield airbag sensor RH circuit.
DTC No.DTC Detection ConditionTrouble Area
B1630/23

The airbag sensor assembly receives a short circuit sig-
nal, an open circuit signal, a short circuit to ground signal
or a short circuit to B+ signal in the curtain shield airbag
sensor RH circuit for 2 seconds.

Curtain shield airbag sensor assembly RH malfunction

Airbag sensor assembly malfunction

Curtain shield airbag sensor assembly RH

Airbag sensor assembly

Floor wire
WIRING DIAGRAM
DIDGW±01

H02751
Airbag Sensor Assembly S26
Curtain Shield Airbag
Sensor Assembly LH
A1920
W
2
A1922
B
1 VUCL
ESCLVUCL
ESCL DI±1198
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1392 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1635/24 Curtain Shield Airbag Sensor (LH)
Malfunction
CIRCUIT DESCRIPTION
The curtain shield airbag sensor assembly LH consists of the safing sensor, the diagnosis circuit, the lateral
deceleration sensor, etc.
If the airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether
or not the SRS should be activated.
DTC B1635/24 is recorded when a malfunction is detected in the curtain shield airbag sensor LH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1635/24

The airbag sensor assembly receives a short circuit sig-
nal, an open circuit signal, a short circuit to ground or a
short circuit to B+ signal in the curtain shield airbag sensor
LH circuit for 2 seconds.

Curtain shield airbag sensor assembly LH malfunction

Airbag sensor assembly malfunction

Curtain shield airbag sensor assembly LH

Airbag sensor assembly

Floor wire No. 2
WIRING DIAGRAM
DIDGX±01

H02750
O6
Occupant Classification ECU
FSR+
BL13
WW
A2116Airbag Sensor Assembly
A2124
B B
BL15
FSR±FSR+
FSR± 8
4 DI±1204
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1398 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1650/32 Occupant Classification System
Malfunction
CIRCUIT DESCRIPTION
The occupant classification system circuit consists of the airbag sensor assembly and the occupant classifi-
cation system.
If the airbag sensor assembly receives signals from the occupant classification ECU, it determines whether
or not the front passenger airbag assembly, side airbag assembly RH and seat belt pretensioner RH should
be operated.
DTC B1650/32 is recorded when a malfunction is detected in the occupant classification system circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1650/32

Occupant classification system malfunction

The airbag sensor assembly receives a line short circuit
signal, an open circuit signal, a short circuit to ground sig-
nal or a short circuit to B+ signal in the occupant classifi-
cation system circuit for 2 seconds.

Airbag sensor assembly malfunction

Occupant classification system

Airbag sensor assembly

Floor wire

Seat wire No. 1
WIRING DIAGRAM
DIDGY±01

H23993
Airbag Sensor Assembly
A199
LSP+ W
VS
GNDSeat
Position
Airbag
Sensor
Assembly B18 (*1)
Buckle SW LH
Seat Position Airbag Sensor Assembly
A1917
LSP± B 3
5
*1: The connectors of the seat position airbag sensor assembly and the
front seat inner belt LH (buckle switch LH) are in common use.
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1213
1407 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1653/35 Seat Position Sensor Assembly
Malfunction
CIRCUIT DESCRIPTION
The seat position airbag sensor assembly circuit consists of the airbag sensor assembly and the seat posi-
tion airbag sensor assembly.
DTC B1653/35 is recorded when a malfunction is detected in the seat position sensor assembly circuit.
DTC No.DTC Detection ConditionTrouble Area
B1653/35

The airbag sensor assembly receives a line short circuit
signal, an open circuit signal, a short circuit to ground sig-
nal or a short circuit to B+ signal in the seat position sen-
sor assembly circuit for 2 seconds.

Seat position airbag sensor assembly malfunction

Airbag sensor assembly malfunction

Seat position airbag sensor assembly

Airbag sensor assembly

Floor wire No. 2
WIRING DIAGRAM
DIDGZ±01

H23244
Airbag Sensor Assembly
A1910
LBE+ G
4 B18 (*1)
Buckle SW LH
Seat Position Airbag Sensor Assembly
*1: The connectors of the seat position airbag sensor assembly and the
front seat inner belt LH (buckle switch LH) are in common use.
Buckle
SW
6R
A1918
LBE± DI±1220
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1414 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1656/38 Seat Belt Buckle Switch (LH) Malfunction
CIRCUIT DESCRIPTION
The seat belt buckle switch LH circuit consists of the airbag sensor assembly and the front seat inner belt
LH.
DTC B1656/38 is recorded when a malfunction is detected in the seat belt buckle switch LH circuit.
DTC No.DTC Detection ConditionTrouble Area
B1656/38

The airbag sensor assembly receives a line short circuit
signal, an open circuit signal, a short circuit to ground sig-
nal or a short circuit to B+ signal in the seat belt buckle
switch LH circuit for 2 seconds.

Front seat inner belt LH malfunction

Airbag sensor assembly malfunction

Front seat inner belt LH

Airbag sensor assembly

Floor wire No. 2
WIRING DIAGRAM
DIDH0±01

H23994
Airbag Sensor
Assembly
PAON A20 IM1
IGN123
4
L
16 I19
Passenger Airbag ON/OFF Indicator
(Integration Control and Panel)
3ESub J/B No. 3
5P±AB A2017
IG2 A2021
E1 A2025
E2 A2026 V
IM13
17
2 PAON
P±AB
IG+3A15 L
V
R±L
R±L
GAUGE 1C2
1A3
1E7
1C4B
B±Y I18
Ignition SW
IG1 AM1
IG2 AM22
6 5 1
Instrument Panel J/B W±L
W±RInstrument Panel J/B
Instrument Panel J/B
1A
1A6
8 1F
1F9
10 W±B
W±B A
A J8
J/C
W±B W±B
1C3
1C61J7
1L 1 AM1
W W±REngine Room J/B
2C1
2D1 AM2
F10
Fusible Link Block
84
5
B
BatteryALT
IE B±R
2
1B DI±1228
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1422 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM

H23995
RMIL A2020
IM1B±R I18
Ignition SW
Combination Meter
BatteryIG2 A2021
E1 A2025
E2 A2026 B
W±B
W±B B±R
IG2 AM26 5
W±RRSCA OFFB±R
C5 40
C612C624
1H11
1C2
1A3 IGN1
1D6
1F9
1F101A6
1A8 Instrument Panel J/B
Engine Room J/B 1C3
1J7
2C1
2D1AM2BR
W±B
W±B
J8
J/C A
A F10
Fusible Link Block 4
5
BBB±O
IEAirbag Sensor
Assembly
1
W±R
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1239
1433 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM

H23996
LA
A2014
ABR I18
Ignition SW
Combination Meter
BatteryIG2 A2021
E1 A2025
E2 A2026 B
W±B
W±B B±R
IG2 AM26 5 W±R
SRS B±Y
C5 29
C612 C6241D4
1A5 1A3 IGN1
1D6
1F9
101A6
1A8 Instrument Panel J/B
Engine Room J/B1H11
1J7
2C1
2D1AM2BR
W±B
W±B
J8
J/C A
A 4
5 B
BB±O
IEAirbag Sensor
Assembly
1C2
Instrument Panel J/B
F10
Fusible Link Block 1C3 D6
DLC3
114B10
4A20
4A10B±Y
B±Y
1F W±R Sub J/B No. 4 DI±1248
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1442 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM