Toyota Sequoia (2005). Manual — part 408
H01454
S17
Side Squib LH
Airbag Sensor Assembly
A19
1
SFL+
Y–B
1
2
Y
A19
2
SFL–
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–1427
1621
WIRING DIAGRAM
DI–1428
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
1622
INSPECTION PROCEDURE
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.
1
Check DTC.
CHECK:
(a)
Proceed to each step according to how to read DTC.
(1)
If using the hand–held tester (read the 5–digit of DTC):
Using the hand–held tester, check the DTCs (see page
RESULT:
DTC B1825 is output.
A
DTC B1826 is output.
B
DTC B1827 is output.
C
DTC B1828 is output.
D
(2)
If not using the hand–held tester (read the 2–digit of DTC):
Check the DTCs (see page
).
RESULT:
DTC 56 is output.
E
HINT:
Codes other than DTC B1825, B1826, B1827, B1828 and DTC 56 may be output at this time, but they are
not related to this check.
B
Go to step 3.
C
Go to step 4.
D
Go to step 5.
E
Go to step 6.
A
H01016
H44043
H24013
Airbag
Sensor
Assembly
SFL+
SFL–
Side Squib LH
Floor Wire No. 2
A
B
C
D
S17
H01016
H44043
H24013
Airbag
Sensor
Assembly
SFL+
SFL–
Side Squib LH
Floor Wire No. 2
A
B
C
D
S17
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–1429
1623
2
Check floor wire No. 2 (short).
PREPARATION:
Release the activation prevention mechanism built into con-
nector ”B” (see page
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester Connection
Condition
Specified Condition
S17–1 (SFL+) –
S17–2 (SFL–)
Always
1 M
Ω
or higher
NG
Repair or replace floor wire No. 2.
OK
Go to step 8.
3
Check floor wire No. 2 (open).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester Connection
Condition
Specified Condition
S17–1 (SFL+) –
S17–2 (SFL–)
Always
Below 1
Ω
NG
Repair or replace floor wire No. 2.
OK
Go to step 9.
H01016
H44043
H24013
Airbag
Sensor
Assembly
SFL+
SFL–
Side Squib LH
Floor Wire No. 2
A
B
C
D
S17
H01016
H44043
H24013
Airbag
Sensor
Assembly
SFL+
SFL–
Side Squib LH
Floor Wire No. 2
A
B
C
D
S17
DI–1430
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
1624
4
Check floor wire No. 2 (short to ground).
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester Connection
Condition
Specified Condition
S17–1 (SFL+) –
Body ground
Always
1 M
Ω
or higher
S17–2 (SFL–) –
Body ground
Always
1 M
Ω
or higher
NG
Repair or replace floor wire No. 2.
OK
Go to step 9.
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 Connection
Condition
Specified Condition
S17–1 (SFL+) –
Body ground
Ignition switch ON
Below 1 V
S17–2 (SFL–) –
Body ground
Ignition switch ON
Below 1 V
NG
Repair or replace floor wire No. 2.
OK
Go to step 9.
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