2001 TOYOTA SEQUOIA service

H01003H23354
D Squib
Spiral
Cable
Airbag
Sensor
Assembly
C D
E F
DI±1362
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1556 Author: Date:
2005 SEQUOIA (RM1146U)
12 Check steering wheel pad (D squib).
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) From the step 11:
Disconnect the service wire from connector ºEº.
(d) Connect the connectors to the steering wheel pad.
(e) 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 B1800, B1801, B1802 or B1803 is not output.
HINT:
Codes other than DTC B1800, B1801, B1802 and B1803 may
be output at this time, but they are not related to this check.
NG
Replace steering wheel pad
(see page RS±82).
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).
HINT:

Perform the simulation method by selecting the check mode with the hand±held tester (see page
DI±1151).

After selecting the check mode, perform the simulation method by wiggling each connector of the air-
bag system or driving the vehicle on a city or rough road (see page DI±1151).

H01002C89252H23353
D2+ D2±
Spiral
Cable D Squib
(Dual stage ±
2nd step)
Color: Black Service Wire
C E
D FAirbag
Sensor
Assembly
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1393
1587 Author: Date:
2005 SEQUOIA (RM1146U)
11 Check airbag sensor assembly.
PREPARATION:
(a) From the step 6:
Turn the ignition switch to the LOCK position.
(b) From the step 6:
Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Connect the connectors to the airbag sensor assembly.
(d) Using a service wire, connect D2+ and D2± of connector
ºEº.
NOTICE:

Twist the end of the service wire in order to insert it
into the connector.

Do not forcibly insert the twisted service wire into the
terminals of the connector when connecting.
(e) 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 B1811, B1812 or B1813 is not output.
HINT:
Codes other than DTC B1811, B1812 and B1813 may be out-
put at this time, but they are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
OK

H01003H23354
Spiral
CableAirbag
Sensor
Assembly D Squib
(Dual stage ±
2nd step)
C ED F
DI±1394
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1588 Author: Date:
2005 SEQUOIA (RM1146U)
12 Check steering wheel pad (D squib, dual stage ± 2nd step).
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) From the step 11:
Disconnect the service wire from connector ºEº.
(d) Connect the connectors to the steering wheel pad.
(e) 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 B1810, B1811, B1812 or B1813 is not output.
HINT:
Codes other than DTC B1810, B1811, B1812 and B1813 may
be output at this time, but they are not related to this check.
NG
Replace steering wheel pad
(see page RS±21).
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).
HINT:

Perform the simulation method by selecting the check mode with the hand±held tester (see page
DI±1151).

After selecting the check mode, perform the simulation method by wiggling each connector of the air-
bag system or driving the vehicle on a city or rough road (see page DI±1151).

H44044H01020H24018
Airbag
Sensor
Assembly Side Squib RH
SFR+ SFR±Floor Wire
D
Service Wire C
S18
DI±1424
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1618 Author: Date:
2005 SEQUOIA (RM1146U)
9 Check airbag sensor assembly.
PREPARATION:
(a) From the step 5:
Turn the ignition switch to the LOCK position.
(b) From the step 5:
Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Connect the connectors to the airbag sensor assembly.
(d) Using a service wire, connect S18±1 (SFR+) and S18±2
(SFR±) of the connector ºCº.
NOTICE:
Do not forcibly insert a service wire into the terminals of the
connector when connecting.
(e) 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 B1821, B1822 or B1823 is not output.
HINT:
Codes other than DTC B1821, B1822 and B1823 may be out-
put at this time, but they are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
OK

H23966
Side Squib RH
Airbag
Sensor
Assembly C D
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1425
1619 Author: Date:
2005 SEQUOIA (RM1146U)
10 Check side airbag assembly RH (side squib RH).
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) From the step 9:
Disconnect the service wire from connector ºCº.
(d) Connect the connector to the side airbag assembly RH.
(e) 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 B1820, B1821, B1822 or B1823 is not output.
HINT:
Codes other than DTC B1820, B1821, B1822 and B1823 may
be output at this time, but they are not related to this check.
NG Replace side airbag assembly RH
(see page RS±46, RS±61).
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).
HINT:

Perform the simulation method by selecting the check mode with the hand±held tester (see page
DI±1151).

After selecting the check mode, perform the simulation method by wiggling each connector of the air-
bag system or driving the vehicle on a city or rough road (see page DI±1151).

H01017H44044H24015
Airbag
Sensor
Assembly Side Squib
LH
SFL+SFL± Floor Wire No. 2
C D
Service Wire
S17
DI±1434
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1628 Author: Date:
2005 SEQUOIA (RM1146U)
9 Check airbag sensor assembly.
PREPARATION:
(a) From the step 5:
Turn the ignition switch to the LOCK position.
(b) From the step 5:
Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Connect the connectors to the airbag sensor assembly.
(d) Using a service wire, connect S17±1 (SFL+) and S17±2
(SFL±) of the connector ºCº.
NOTICE:
Do not forcibly insert a service wire into the terminals of the
connector when connecting.
(e) 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 B1826, B1827 or B1828 is not output.
HINT:
Codes other than DTC B1826, B1827 and B1828 may be out-
put at this time, but they are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
OK

H01018H23474
Side Squib LH
Airbag
Sensor
Assembly C D
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1435
1629 Author: Date:
2005 SEQUOIA (RM1146U)
10 Check side airbag assembly LH (side squib LH).
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) From the step 9:
Disconnect the service wire from connector ºCº.
(d) Connect the connector to the side airbag assembly LH.
(e) 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 B1825, B1826, B1827 or B1828 is not output.
HINT:
Codes other than DTC B1825, B1826, B1827 and B1828 may
be output at this time, but they are not related to this check.
NG Replace side airbag assembly LH
(see page RS±46, RS±61).
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).
HINT:

Perform the simulation method by selecting the check mode with the hand±held tester (see page
DI±1151).

After selecting the check mode, perform the simulation method by wiggling each connector of the air-
bag system or driving the vehicle on a city or rough road (see page DI±1151).

H01020H23982H24010
Airbag
Sensor
Assembly
ICR+ICR±
C D
Service Wire Curtain Shield
Airbag RH Squib
C12
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1445
1639 Author: Date:
2005 SEQUOIA (RM1146U)
11 Check airbag sensor assembly.
PREPARATION:
(a) From the step 6:
Turn the ignition switch to the LOCK position.
(b) From the step 6:
Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Using a service wire, connect C12±1 (ICR+) and C12±2
(ICR±) of the connector ºCº.
NOTICE:

Twist the end of the service wire in order to insert it
into the connector.

Do not forcibly insert the twisted service wire into the
terminals of the connector when connecting.
(d) Connect the connectors to the airbag sensor assembly.
(e) 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 B1831, B1832 or B1833 is not output.
HINT:
Codes other than DTC B1831, B1832 and B1833 may be out-
put at this time, but they are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
OK