2001 TOYOTA SEQUOIA Page 18

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

H10600H01012H01069H24008
Airbag
Sensor
Assembly Integration
Control
and Panel
DLC3
TC CG
DTC B1660/43
DI±1232
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1426 Author: Date:
2005 SEQUOIA (RM1146U)
6 Check integration control and panel.
PREPARATION:
(a) Connect the connectors to the airbag sensor assembly.
(b) Connect the connector to the integration control and pan-
el.
(c) 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 B1660/43 is not output.
HINT:
Codes other than DTC B1660/43 may be output at this time, but
they are not related to this check.
NG Replace integration control and panel
(see page BO±89).
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).

H24027PAON I19P±AB Integration Control and Panel:
H24023
DI±1236
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1430 Author: Date:
2005 SEQUOIA (RM1146U)
12 Check integration control and panel (passenger airbag ON/OFF indicator).
PREPARATION:
(a) Connect the connector to the integration control and pan-
el.
(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.
(b) Check that the passenger airbag ON/OFF indicator
condition in the table below.
OK:
Tester ConnectionConditionIndicator
I19±16 (PAON) ±
Body groundIgnition switch ONON indicator comes on
I19±17 (P±AB) ±
Body groundIgnition switch ONOFF indicator comes on
NG Replace integration control and panel
(see page BO±89).
OK

H10600H01012H01069H24008
Airbag
Sensor
Assembly Integration
Control
and Panel
DLC3
TC CG
DTC B1660/43
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1237
1431 Author: Date:
2005 SEQUOIA (RM1146U)
13 Check airbag sensor assembly.
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) Connect the connectors to the airbag sensor assembly.
(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, 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 B1660/43 is not output.
HINT:
Codes other than DTC B1660/43 may be output at this time, but
they are not related to this check.
NG Replace airbag sensor assembly
(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).

H10600 H01012H01070H24042
Combination
Meter
Airbag
Sensor
Assembly
DTC B1661/44 DLC3
CG TC
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1243
1437 Author: Date:
2005 SEQUOIA (RM1146U)
6 Check airbag sensor assembly.
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) Connect the connectors to the airbag sensor assembly
and the combination meter.
(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, 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 B1661/44 is not output.
HINT:
Codes other than DTC B1661/44 may be output at this time, but
they are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
HINT:
If the DTC B1661/44 is output after replacing the airbag sensor
assembly, there may be trouble in the combination meter.
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).

H01015G27651H23985
RMILAirbag
Sensor
Assembly A Cowl Wire Combination
Meter
A20B C D
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1245
1439 Author: Date:
2005 SEQUOIA (RM1146U)
9 Check combination meter.
PREPARATION:
Connect the negative (±) terminal cable to the battery, and wait for at least 2 seconds.
CHECK:
Turn the ignition switch to the ON position, and check the RSCA OFF indicator condition.
OK:
The RSCA OFF indicator comes on when the RSCA OFF switch is ON.
NG Go to combination meter system
(see page DI±1610).
OK
10 Check cowl wire (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.
(c) Disconnect the connector from the combination meter.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
A20±20 (RMIL) ±
Body groundAlways1 MW or higher
NG Repair or replace cowl wire.
OK

H22564H23040I27704H23986
Combination
Meter
C5±40RMILA20
C6
A
B C DAirbag
Sensor
Assembly
Cowl Wire
DI±1246
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1440 Author: Date:
2005 SEQUOIA (RM1146U)
11 Check cowl wire (airbag sensor assembly ± combination meter).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
A20±20 (RMIL) ± C5±40AlwaysBelow 1 W
NG Repair or replace cowl wire.
OK
Replace airbag sensor assembly (see page RS±82).

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1249
1443 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check battery.
CHECK:
Measure the voltage of the battery.
OK:
Voltage: 11 to 14 V
NG Replace battery.
OK
2 Check connection of connectors.
PREPARATION:
(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.
CHECK:
Check that the connectors are properly connected to the airbag sensor assembly and combination meter.
OK:
The connectors are connected securely.
NG Connect connectors, then go to step 1.
OK
3 Check combination meter.
PREPARATION:
(a) Disconnect the connectors from the airbag sensor assembly.
(b) Connect the negative (±) terminal cable to the battery, and wait for at least 2 seconds.
CHECK:
Turn the ignition switch to the ON position, check the operation of the SRS warning light.
OK:
The SRS warning light comes on (goes off 6 seconds after the ignition switch is turned to the
ON position).
NG Go to combination meter system
(see page DI±1610).
OK