2001 TOYOTA SEQUOIA battery

H01016H43108H23601
P/T Squib LH
PL±
PL+Airbag
Sensor
Assembly
Floor Wire No. 2
A
B C D
P10
DI±1474
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1668 Author: Date:
2005 SEQUOIA (RM1146U)
6 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
P10±1 (PL+) ±
Body groundIgnition switch ONBelow 1 V
P10±2 (PL±) ±
Body groundIgnition switch ONBelow 1 V
NG Repair or replace floor wire No. 2.
OK
Go to step 11.
7 Check connector.
CHECK:
Check that the floor wire No. 2 connector (on the front seat outer belt LH side) is not damaged.
OK:
The lock button is not disengaged, or the claw of the lock is not deformed or damaged.
NG Repair or replace floor wire No. 2.
OK

H01016H43108H23601
P/T Squib LH
PL±
PL+Airbag
Sensor
Assembly
Floor Wire No. 2
A
B C D
P10
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1475
1669 Author: Date:
2005 SEQUOIA (RM1146U)
8 Check floor wire No. 2 (P/T squib LH circuit).
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
P10±1 (PL+) ±
Body groundIgnition switch ONBelow 1 V
P10±2 (PL±) ±
Body groundIgnition switch ONBelow 1 V
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
P10±1 (PL+) ±
P10±2 (PL±)AlwaysBelow 1 W
P10±1 (PL+) ±
Body groundAlways1 MW or higher
P10±2 (PL±) ±
Body groundAlways1 MW or higher
PREPARATION:
Release the activation prevention mechanism built into con-
nector ºBº (see page DI±1137).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester ConnectionConditionSpecified Condition
P10±1 (PL+) ±
P10±2 (PL±)Always1 MW or higher
NG Repair or replace floor wire No. 2.
OK

H10600H01018H01087H24656
Airbag
Sensor
Assembly P/T Squib LH
DLC3
TC CG
DTC 74 C D
DI±1476
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1670 Author: Date:
2005 SEQUOIA (RM1146U)
9 Replace front seat outer belt LH (P/T squib LH).
PREPARATION:
(a) Replace the front seat outer belt LH (see page BO±163).
HINT:
Perform the inspection using parts from a normal vehicle if pos-
sible.
(b) Connect the connectors to the airbag sensor assembly.
(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 74 is not output.
HINT:
Codes other than DTC 74 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

H01018H23609
Airbag
Sensor
Assembly DC P/T Squib LH
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1477
1671 Author: Date:
2005 SEQUOIA (RM1146U)
10 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connectors to the airbag sensor assembly.
(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 B1905 is not output.
HINT:
Codes other than DTC B1905 may be output at this time, but
they are not related to this check.
NG Replace airbag sensor assembly
(see page RS±82).
OK
Go to step 12.

H01017H43107H23603
Airbag
Sensor
Assembly P/T Squib LH
C D
PL± PL+
Service Wire
P10
DI±1478
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1672 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 P10±1 (PL+) and P10±2
(PL±) of 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.
(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 B1906, B1907 or B1908 is not output.
HINT:
Codes other than DTC B1906, B1907 and B1908 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
Airbag
Sensor
Assembly DC P/T Squib LH
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1479
1673 Author: Date:
2005 SEQUOIA (RM1146U)
12 Check front seat outer belt LH (P/T 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 10:
Disconnect the service wire from connector ºCº.
(d) Connect the connector to the front seat outer belt 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 B1905, B1906, B1907 or B1908 is not output.
HINT:
Codes other than DTC B1905, B1906, B1907 and B1908 may
be output at this time, but they are not related to this check.
NG Replace front seat outer belt LH
(see page BO±163).
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).

DI±1480
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1674 Author: Date:
2005 SEQUOIA (RM1146U)
DTC Normal Source Voltage Drop
CIRCUIT DESCRIPTION
The SRS is equipped with a voltage±increase circuit (DC±DC converter) in the airbag sensor assembly in
case the source voltage drops.
When the battery voltage drops, the voltage±increase circuit (DC±DC converter) functions to increase the
voltage of the SRS to normal voltage.
A malfunction in this circuit is displayed differently from other codes. The source voltage drop is indicated
when the SRS warning light comes on without showing any DTCs.
A malfunction in this circuit is not recorded in the airbag sensor assembly. The SRS warning light automati-
cally goes off when the source voltage returns to normal.
DTC No.Detection Item
(Normal)Source voltage drop
DIDHS±01

H24000
Airbag Sensor
Assembly
IG2 A20 B
Engine Room J/B Instrument Panel J/B
Instrument Panel J/B I18
Ignition SW
21
1A3
1J7 1C2
1C3 AM2 IG2B±R
6 5IGN1
AM2
2C1
2D1 W±R W±R
B
4
5
BF10
Fusible Link
BlockE1
E2 A2025
A2026 W±B
W±B 1A6
1F9
1F 10
1A8 W±B
W±B A
A J8
J/C
IE Battery
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1481
1675 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM