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DI-414
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
DI6MW-03
DTC B0115/47 Short in Side Squib (LH) Circuit
CIRCUIT DESCRIPTION
The side squib (LH) circuit consists of the airbag sensor assembly and side airbag assembly (LH).
It causes the SRS to deploy when the SRS deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS-2 .
DTC B0115/47 is recorded when a short is detected in the side squib (LH) circuit.
DTC No. DTC Detecting Condition Trouble Area
S Short circuit between SFL+ wire harness and SFL- wire
S Side airbag assembly (LH)
harness of squib
B0115/47 S Airbag sensor assembly
S Side squib (LH) malfunction
S Wire harness
S Airbag sensor assembly malfunction
WIRING DIAGRAM
Airbag Sensor Assembly
Side Squib (LH)
1 5
Y-R Y-R
BJ1 C4 SFL+
1
2 6
Y-G Y-G
BJ1 C4 SFL-
2
H16799
2001 SIENNA (RM787U)
Author : Date : 568
DI-415
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-486 ).
2 Check side squib (LH) circuit.
PREPARATION:
Squib (LH)
Release the airbag activation prevention mechanism of the
Airbag connector (on the airbag sensor assembly side) between the
Sensor airbag sensor assembly and the side airbag assembly (LH)
Assembly (See page DI-358 ).
CHECK:
For the connector (on the side airbag assembly side) between
the side airbag assembly (LH) and the airbag sensor assembly,
SFL- SFL+ measure the resistance between SFL+ and SFL-.
OK:
Resistance: 1 M or Higher
(-) (+)
H17219
H09668 H17563
NG Repair or replace harness or connector be-
tween side airbag assembly (LH) and airbag
sensor assembly.
OK
2001 SIENNA (RM787U)
Author : Date : 569
DI-416
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
Airbag
Squib (LH) Sensor CHECK:
Assembly (a) Turn the ignition switch to ACC or ON and wait at least for
20 seconds.
(b) Clear the DTC stored in memory (See page DI-358 ).
ACC ON (c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
or (d) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
DLC1 (e) Check the DTC (See page DI-358 ).
DTC B0115/47
OK:
DTC B0115/47 is not output.
HINT:
Codes other than code B0115/47 may be output at this time, but
E1 Tc they are not relevant to this check.
H17564
AB0118 AB0119
R13006 H01073 H17565
NG Replace airbag sensor assembly.
OK
2001 SIENNA (RM787U)
Author : Date : 570
DI-417
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
4 Check side squib (LH).
PREPARATION:
Squib (LH)
(a) Turn the ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
Airbag
and wait at least for 90 seconds.
Sensor
Assembly (c) Connect the front side airbag assembly (LH) connector.
(d) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
ACC ON (a) Turn the ignition switch to LOOK, and wait at least for 20
second.
or (b) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
DLC1
DTC B0115/47 (c) Clear the DTC stored in memory (See page DI-358 ).
(d) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(e) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
E1 Tc (f) Check the DTC (See page DI-358 ).
H17221
AB0118 AB0119
R13006 H01073 H17566 OK:
DTC B0115/47 is not output.
HINT:
Codes other than code B0115/47 may be output at this time, but
they are not relevant to this check.
NG Replace side airbag assembly (LH).
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.
2001 SIENNA (RM787U)
Author : Date : 571
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