2001 TOYOTA SEQUOIA battery

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).

DI±1244
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1438 Author: Date:
2005 SEQUOIA (RM1146U)
7 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 combination meter.
OK:
The connectors are connected securely.
NG Connect connector, then go to step 1.
OK
8 Prepare for inspection.
PREPARATION:
CAUTION:
Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag de-
ployment.
(a) Disconnect the connectors from the airbag sensor assembly.
(b) Disconnect the connectors from the steering wheel pad.
(c) Disconnect the connectors from the front passenger airbag assembly.
(d) w/ Side and curtain shield airbag:
Disconnect the connectors from the side airbag assembly LH and RH.
(e) w/ Side and curtain shield airbag:
Disconnect the connectors from the curtain shield airbag assembly LH and RH.
(f) Disconnect the connectors from the front seat outer belt LH and RH.
NEXT

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

H23996
LA
A2014
ABR I18
Ignition SW
Combination Meter
BatteryIG2 A2021
E1 A2025
E2 A2026 B
W±B
W±B B±R
IG2 AM26 5 W±R
SRS B±Y
C5 29
C612 C6241D4
1A5 1A3 IGN1
1D6
1F9
101A6
1A8 Instrument Panel J/B
Engine Room J/B1H11
1J7
2C1
2D1AM2BR
W±B
W±B
J8
J/C A
A 4
5 B
BB±O
IEAirbag Sensor
Assembly
1C2
Instrument Panel J/B
F10
Fusible Link Block 1C3 D6
DLC3
114B10
4A20
4A10B±Y
B±Y
1F W±R Sub J/B No. 4 DI±1248
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1442 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM

± 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

H43103H43111H23819
Occupant
Classification ECU
BGND
BSW CB DA
Front Seat
Inner Belt RHO6
Seat Wire No. 1
DI±1254
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1448 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 occupant classification ECU and the front seat inner
belt RH.
OK:
The connectors are connected securely.
NG Connect connectors, then go to step 1.
OK
3 Check seat wire No. 1 (short to B+).
PREPARATION:
(a) Disconnect the connectors from the occupant classifica-
tion ECU and the front seat inner belt RH.
(b) Connect the negative (±) terminal cable to the battery.
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
O6±9 (BSW) ±
Body groundIgnition switch ONBelow 1 V
O6±5 (BGND) ±
Body groundIgnition switch ONBelow 1 V
NG Repair or replace seat wire No. 1.
OK

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1257
1451 Author: Date:
2005 SEQUOIA (RM1146U)
7 Check DTC.
PREPARATION:
(a) Connect the connectors to the occupant classification ECU and the front seat inner belt RH.
(b) Connect the negative (±) terminal cable to the battery.
CHECK:
(a) Turn the ignition switch to the ON position.
(b) Clear the DTCs stored in memory (see page DI±1147).
HINT:
First clear DTCs stored in the occupant classification ECU and then in the airbag sensor assembly.
(c) Turn the ignition switch to the LOCK position.
(d) Turn the ignition switch to the ON position.
(e) Using the hand±held tester, check the DTCs of the occupant classification ECU (see page DI±1147).
OK:
DTC B1771 is not output.
HINT:
Codes other than DTC B1771 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).

DI±1258
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1452 Author: Date:
2005 SEQUOIA (RM1146U)
8 Replace front seat inner belt RH.
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.
(c) Replace the front seat inner belt RH (see page BO±112, BO±126).
HINT:
Perform the inspection using parts from a normal vehicle if possible.
(d) Connect the negative (±) terminal cable to the battery.
CHECK:
(a) Turn the ignition switch to the ON position.
(b) Clear the DTCs stored in memory (see page DI±1147).
HINT:
First clear DTCs stored in the occupant classification ECU and then in the airbag sensor assembly.
(c) Turn the ignition switch to the LOCK position.
(d) Turn the ignition switch to the ON position.
(e) Using the hand±held tester, check the DTCs of the occupant classification ECU (see page DI±1147).
OK:
DTC B1771 is not output.
HINT:
Codes other than DTC B1771 may be output at this time, but they are not related to this check.
NG Go to step 9.
OK
END