Toyota Sequoia (2005). Manual — part 401
H41440
H23351
Spiral
Cable
Airbag
Sensor
Assembly
D2+
D2–
D Squib
(Dual stage –
2nd step)
B
C
E
D
F
A
Cowl Wire
A23
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–1399
1593
17
Check cowl wire (short to ground).
PREPARATION:
Disconnect the cowl wire connector from the spiral cable.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester Connection
Condition
Specified Condition
A23–4 (D2+) –
Body ground
Always
1 M
Ω
or higher
A23–3 (D2–) –
Body ground
Always
1 M
Ω
or higher
NG
Repair or replace cowl wire.
OK
H41479
H23350
Spiral
Cable
Airbag
Sensor
Assembly
D2+
D2–
D Squib
(Dual stage –
2nd step)
Color: Black
A
B
D
E
C
F
DI–1400
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
1594
18
Check spiral cable (short to ground).
CHECK:
(a)
Measure the resistance according to the value(s) in the
table below.
OK:
Tester Connection
Condition
Specified Condition
D2+ – Body ground
Always
1 M
Ω
or higher
D2– – Body ground
Always
1 M
Ω
or higher
NG
Replace spiral cable (see page
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
HINT:
Perform the simulation method by selecting the check mode with the hand–held tester (see page
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
H41440
H23351
Spiral
Cable
Airbag
Sensor
Assembly
D2+
D2–
D Squib
(Dual stage –
2nd step)
B
C
E
D
F
A
Cowl Wire
A23
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
DI–1401
1595
19
Check cowl wire (short to B+).
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 cowl wire connector from the spiral cable.
(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)
Measure the voltage according to the value(s) in the table
below.
OK:
Tester Connection
Condition
Specified Condition
A23–4 (D2+) –
Body ground
Ignition switch ON
Below 1 V
A23–3 (D2–) –
Body ground
Ignition switch ON
Below 1 V
NG
Repair or replace cowl wire.
OK
H41479
H23350
Spiral
Cable
Airbag
Sensor
Assembly
D2+
D2–
D Squib
(Dual stage –
2nd step)
Color: Black
A
B
D
E
C
F
DI–1402
–
DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM
1596
20
Check spiral cable (short to B+).
CHECK:
Measure the voltage according to the value(s) in the table be-
low when the ignition switch is in the ON position.
OK:
Tester Connection
Condition
Specified Condition
D2+ – Body ground
Ignition switch ON
Below 1 V
D2– – Body ground
Ignition switch ON
Below 1 V
NG
Replace spiral cable (see page
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
HINT:
Perform the simulation method by selecting the check mode with the hand–held tester (see page
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
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