Page 1425 of 4323

C91384H01010G27652H23572
Airbag
Sensor
Assembly
A19
A
B C D
LBE+
LBE±
Front Seat
Inner Belt LH
Floor Wire No. 2
C91384H01010G27652H23572
Airbag
Sensor
Assembly
A19
A
B C D
LBE+
LBE±
Front Seat
Inner Belt LH
Floor Wire No. 2
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1223
1417 Author: Date:
2005 SEQUOIA (RM1146U)
4 Check floor wire No. 2 (short).
PREPARATION:
Disconnect the service wire from connector ºCº.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
A19±10 (LBE+) ±
A19±18 (LBE±)Always1 MW or higher
NG Repair or replace floor wire No. 2.
OK
5 Check floor wire No. 2 (short to B+).
PREPARATION:
Connect the negative (±) terminal cable to the battery, and wait
for at least 2 seconds.
CHECK:
(a) Turn the ignition switch to the ON position.
(b) Measure the voltage according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
A19±10 (LBE+) ±
Body groundIgnition switch ONBelow 1 V
A19±18 (LBE±) ±
Body groundIgnition switch ONBelow 1 V
NG Repair or replace floor wire No. 2.
OK
Page 1426 of 4323
C91384H01010G27652H23572
Airbag
Sensor
Assembly
A19
A
B C D
LBE+
LBE±
Front Seat
Inner Belt LH
Floor Wire No. 2
DI±1224
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1418 Author: Date:
2005 SEQUOIA (RM1146U)
6 Check floor wire No. 2 (short to ground).
PREPARATION:
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
A19±10 (LBE+) ±
Body groundAlways1 MW or higher
A19±18 (LBE±) ±
Body groundAlways1 MW or higher
NG Repair or replace floor wire No. 2.
OK
Page 1427 of 4323

C84216
H10600C92968H24657
CG
TCDTC B1656/38 DLC3Airbag
Sensor
Assembly
Front Seat
Inner Belt LH
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1225
1419 Author: Date:
2005 SEQUOIA (RM1146U)
7 Check front seat inner belt LH.
PREPARATION:
(a) Connect the connectors to the airbag sensor assembly
and the front seat inner belt LH.
(b) Connect the negative (±) terminal cable to the battery,
and wait for at least 2 seconds.
CHECK:
(a) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(b) Clear the DTCs stored in memory (see page DI±1147).
(c) Turn the ignition switch to the LOCK position.
(d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(e) Check the DTCs (see page DI±1147).
OK:
DTC B1656/38 is not output.
HINT:
Codes other than DTC B1656/38 may be output at this time, but
they are not related to this check.
NG Go to step 8.
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check (see page DI±1137).
8 Replace front seat inner belt LH.
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the battery, and wait for at least 90 seconds.
(c) Replace the front seat inner belt LH (see page BO±112, BO±126).
HINT:
Perform inspection using parts from a normal vehicle if possible.
NEXT
Page 1428 of 4323
C84216
H10600C92968H24657
CG
TCDTC B1656/38 DLC3Airbag
Sensor
Assembly
Front Seat
Inner Belt LH
DI±1226
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1420 Author: Date:
2005 SEQUOIA (RM1146U)
9 Check airbag sensor assembly.
PREPARATION:
Connect the negative (±) terminal cable to the battery, and wait
for at least 2 seconds.
CHECK:
(a) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(b) Clear the DTCs stored in memory (see page DI±1147).
(c) Turn the ignition switch to the LOCK position.
(d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(e) Check the DTCs (see page DI±1147).
OK:
DTC B1656/38 is not output.
HINT:
Codes other than DTC B1656/38 may be output at this time, but
they are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
OK
END
Page 1429 of 4323

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1227
1421 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1660/43 Passenger Airbag ON/OFF Indicator
Malfunction
CIRCUIT DESCRIPTION
The passenger airbag ON/OFF indicator circuit consists of the airbag sensor assembly and the integration
control and panel.
This circuit indicates the operation condition of the front passenger airbag assembly, the side airbag assem-
bly RH and seat belt pretensioner RH.
DTC B1660/43 is recorded when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1660/43
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 passenger airbag
ON/OFF indicator circuit for 2 seconds.
Passenger airbag ON/OFF indicator malfunction
Airbag sensor assembly malfunction
Integration control and panel
(Passenger airbag ON/OFF indicator)
Airbag sensor assembly
Cowl wire
DIDH1±01
Page 1430 of 4323
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
Page 1431 of 4323

H22552
Ignition Switch
Passenger Airbag
ON/OFF Indicator
(ºONº)
Passenger Airbag
ON/OFF Indicator
(ºOFFº)ON
OFF
ABC
4 sec. 2 sec.
4 sec. 2 sec.
ON/OFF condition depends on the
front passenger detection results. ON
OFF
ON
OFF
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1229
1423 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check passenger airbag ON/OFF indicator.
CHECK:
(a) Turn the ignition switch to the ON position.
(b) Check the passenger airbag ON/OFF indicator operation.
HINT:
Refer to the normal condition of the passenger airbag ON/OFF indicator (see page DI±1137).
RESULT:
A:
During period ºAº in the illustration, even if both the ºONº and ºOFFº passenger airbag ON/OFF
indicators normally come on, both of them do not go off during period ºBº.
During periods ºAº and ºBº in the illustration, even if both the ºONº and ºOFFº passenger air-
bag ON/OFF indicators normally come on, both of them come on during period ºCº.
B:
During period ºAº, neither the ºONº nor ºOFFº passenger airbag ON/OFF indicators come on,
or either of them does not come on.
During period ºCº, even if the front passenger seat is occupied, neither the ºONº nor ºOFFº
passenger airbag ON/OFF indicators come on.
B Go to step 7.
A
Page 1432 of 4323

H24023
DI±1230
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1424 Author: Date:
2005 SEQUOIA (RM1146U)
2 Check integration control and panel (passenger airbag ON/OFF indicator).
PREPARATION:
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Disconnect the connectors from the airbag sensor as-
sembly.
(d) Connect the negative (±) terminal cable to the battery,
and wait for at least 2 seconds.
CHECK:
(a) Turn the ignition switch to the ON position.
(b) Check the passenger airbag ON/OFF indicator operation.
OK:
Neither the ºONº nor ºOFFº passenger airbag ON/
OFF indicators come on.
NG Go to step 3.
OK
Replace airbag sensor assembly (see page RS±82).
3 Prepare for inspection.
PREPARATION:
CAUTION:
Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag de-
ployment.
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the battery, and wait for at least 90 seconds.
(c) Disconnect the connectors from the airbag sensor assembly.
(d) Disconnect the connectors from the steering wheel pad.
(e) Disconnect the connectors from the front passenger airbag assembly.
(f) w/ Side and curtain shield airbag:
Disconnect the connectors from the side airbag assembly LH and RH.
(g) w/ Side and curtain shield airbag:
Disconnect the connectors from the curtain shield airbag assembly LH and RH.
(h) Disconnect the connectors from the front seat outer belt LH and RH.
NEXT