2001 TOYOTA SEQUOIA service

H03353H08016G27651H23623
Front Airbag
Sensor LHAirbag
Sensor
Assembly
+SL
±SL
A
B D F
E
C C
Service Wire
+SL
±SL
A20A11
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1173
1367 Author: Date:
2005 SEQUOIA (RM1146U)
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 the front airbag sensor
LH.
OK:
The connectors are connected securely.
NG Connect connectors, then go to step 1.
OK
3 Check front airbag sensor LH circuit (open).
PREPARATION:
(a) Disconnect the connectors from the airbag sensor as-
sembly and the front airbag sensor LH.
(b) Using a service wire, connect A11±2 (+SL) and A11±1
(±SL) of connector ºEº.
NOTICE:
Do not forcibly insert a service wire into the terminals of the
connector when connecting.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
A20±30 (+SL) ±
A20±28 (±SL)AlwaysBelow 1 W
NG Go to step 8.
OK

H03355G27651H23624
Front Airbag
Sensor LHAirbag
Sensor
Assembly
±SL +SL
A
B D E F
C
A20
H03355G27651H23624
Front Airbag
Sensor LHAirbag
Sensor
Assembly
±SL +SL
A
B D E F
C
A20
DI±1174
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1368 Author: Date:
2005 SEQUOIA (RM1146U)
4 Check front airbag sensor LH circuit (short).
PREPARATION:
Disconnect the service wire from connector ºEº.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
A20±30 (+SL) ±
A20±28 (±SL)Always1 MW or higher
NG Go to step 9.
OK
5 Check front airbag sensor LH circuit (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
A20±30 (+SL) ±
Body groundIgnition switch ONBelow 1 V
A20±28 (±SL) ±
Body groundIgnition switch ONBelow 1 V
NG Go to step 10.
OK

H23631H03352H23983H24011
Airbag
Sensor
Assembly Front Airbag
Sensor LH
Engine Room Main Wire
A
B
C D E F
Service Wire
Cowl Wire
+SL±SL
A11IA3
+SL ±SL
H03354H23983H24012
Airbag
Sensor
Assembly
+SL±SLA
B D E
C F
Front Airbag
Sensor LH
Cowl WireEngine Room Main Wire
IA3
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1177
1371 Author: Date:
2005 SEQUOIA (RM1146U)
8 Check engine room main wire (open).
PREPARATION:
Disconnect the engine room main wire connector from the cowl
wire.
HINT:
The service wire has already been inserted into connector ºEº.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
IA3±1 (+SL) ±
IA3±2 (±SL)AlwaysBelow 1 W
NG Repair or replace engine room main wire.
OK
Repair or replace cowl wire.
9 Check engine room main wire (short).
PREPARATION:
Disconnect the engine room main wire connector from the cowl
wire.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
IA3±1 (+SL) ±
IA3±2 (±SL)Always1 MW or higher
NG Repair or replace engine room main wire.
OK
Repair or replace cowl wire.

C84207G27650H43694H24002
Occupant
Classification ECUAirbag
Sensor
Assembly
D
FSR±FSR+ CBA
FSR+
FSR± O6
E F
A21
Service Wire
C84205G27650H24003
Occupant
Classification ECUAirbag
Sensor
Assembly
D
A21
FSR±FSR+CBA
E F
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1207
1401 Author: Date:
2005 SEQUOIA (RM1146U)
5 Check occupant classification system circuit (open).
PREPARATION:
(a) Disconnect the connector from the occupant classifica-
tion ECU.
(b) Using a service wire, connect O6±8 (FSR+) and O6±4
(FSR±) of connector ºEº.
NOTICE:
Do not forcibly insert a service wire into the terminals of the
connector when connecting.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
A21±16 (FSR+) ±
A21±24 (FSR±)AlwaysBelow 1 W
NG Go to step 9.
OK
6 Check occupant classification system circuit (short).
PREPARATION:
Disconnect the service wire from connector ºEº.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
A21±16 (FSR+) ±
A21±24 (FSR±)Always1 MW or higher
NG Go to step 10.
OK

C84213
H43694H24024H24004
Occupant
Classification
ECUAirbag
Sensor
Assembly
A
O6
FSR+FSR±B C D E F
Service Wire
BL1
Seat Wire No. 1
Floor Wire
FSR+
FSR±
C84211H24024H24005
Occupant
Classification
ECU
Airbag
Sensor
Assembly
A
FSR+
FSR± B C D E F
BL1Seat Wire No. 1
Floor Wire
DI±1210
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1404 Author: Date:
2005 SEQUOIA (RM1146U)
9 Check seat wire No. 1 (open).
PREPARATION:
Disconnect the seat wire No. 1 connector from the floor wire.
HINT:
The service wire has already been inserted into connector ºEº.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
BL1±3 (FSR+) ±
BL1±5 (FSR±)AlwaysBelow 1 W
NG Repair or replace seat wire No. 1.
OK
Repair or replace floor wire.
10 Check seat wire No. 1 (short).
PREPARATION:
Disconnect the seat wire No. 1 connector from the floor wire.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
BL1±3 (FSR+) ±
BL1±5 (FSR±)Always1 MW or higher
NG Repair or replace seat wire No. 1.
OK
Repair or replace floor wire.

H01010G27652H24025H24542
Seat
Position
Airbag
Sensor
Assembly
LSP±LSP+
Airbag
Sensor
Assembly
Service WireA19
A
B C D
B18
Floor Wire No. 2
3
5
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1215
1409 Author: Date:
2005 SEQUOIA (RM1146U)
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 the seat position air-
bag sensor assembly.
OK:
The connectors are connected securely.
NG Connect connectors, then go to step 1.
OK
3 Check floor wire No. 2 (open).
PREPARATION:
(a) Disconnect the connectors from the airbag sensor as-
sembly and the seat position airbag sensor assembly.
(b) Using a service wire, connect B18±3 and B18±5 of con-
nector ºCº.
NOTICE:
Do not forcibly insert a service wire into the terminals of the
connector when connecting.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester connectionConditionSpecified Condition
A19±9 (LSP+) ±
A19±17 (LSP±)AlwaysBelow 1 W
NG Repair or replace floor wire No. 2.
OK

H01010G27652H23365
Airbag
Sensor
Assembly
Seat
Position
Airbag
Sensor
Assembly
LSP+
LSP± A19
A
B D
C
Floor Wire No. 2
H01010G27652H23365
Airbag
Sensor
Assembly
Seat
Position
Airbag
Sensor
Assembly
LSP+
LSP± A19
A
B D
C
Floor Wire No. 2
DI±1216
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1410 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±9 (LSP+) ±
A19±17 (LSP±)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±9 (LSP+) ±
Body groundIgnition switch ONBelow 1 V
A19±17 (LSP±) ±
Body groundIgnition switch ONBelow 1 V
NG Repair or replace floor wire No. 2.
OK

H03353G27651H24026H24551
Airbag
Sensor
Assembly
LBE+
LBE± Front Seat
Inner Belt LH
B C D
A
Service Wire
Floor Wire No. 2
A19
B18
4
6
DI±1222
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1416 Author: Date:
2005 SEQUOIA (RM1146U)
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 the front seat inner
belt LH.
OK:
The connectors are connected securely.
NG Connect connectors, then go to step 1.
OK
3 Check floor wire No. 2 (open).
PREPARATION:
(a) Disconnect the connectors from the airbag sensor as-
sembly and the front seat inner belt LH.
(b) Using a service wire, connect B18±4 and B18±6 of con-
nector ºCº.
NOTICE:
Do not forcibly insert a service wire into the terminals of the
connector when connecting.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
A19±10 (LBE+) ±
A19±18 (LBE±)AlwaysBelow 1 W
NG Repair or replace floor wire No. 2.
OK