Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 rs cib01124
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DI-408
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
DI6MU-03
DTC B0112/41 Short in Side Squib (RH) Circuit (to
Ground)
CIRCUIT DESCRIPTION
The side squib (RH) circuit consists of the airbag sensor assembly and side airbag assembly (RH).
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 B0112/41 is recorded when ground short is detected in the side squib (RH) circuit.
DTC No. DTC Detecting Condition Trouble Area
S Short circuit in side squib (RH) wire harness (to ground) S Side airbag assembly (RH)
B0112/41 S Side squib (RH) malfunction S Airbag sensor assembly
S Airbag sensor assembly malfunction S Wire harness
WIRING DIAGRAM
See page DI-401 .
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-486 ).
2 Check side squib (RH) circuit.
CHECK:
For the connector (on the side airbag assembly side) between
Airbag
the side airbag assembly (RH) and the airbag sensor assembly,
Squib (RH) Sensor measure the resistance between SFR+ and body ground.
Assembly OK:
Resistance: 1 M or Higher
SFR+
(-) (+)
NG Repair or replace harness or connector be-
tween side airbag assembly (RH) and airbag
H17215 sensor assembly.
H09669 H17557
OK
2001 SIENNA (RM787U)
Author : Date : 562
DI-409
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect SFR+ and SFR- of the con-
Airbag nector (on the side airbag assembly side) between the
Squib (RH) Sensor
Assembly side airbag assembly (RH) and the airbag sensor assem-
bly.
(c) Connect negative (-) terminal cable to the battery, and
ACC ON
wait at least for 2 seconds.
CHECK:
SFR- SFR+
(a) Turn the ignition switch to ACC or ON and wait at least for
or 20 seconds.
(b) Clear the DTC stored in memory
DLC1 DTC B0112/41 (See step 5 on page DI-358 ).
(c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d) Turn the ignition switch to ACC or ON, and wait at least
E1 Tc for 20 seconds.
H17216
H09671
(e) Check the DTC (See page DI-358 ).
AB0118 AB0119
R13006 H01067 H17558 OK:
DTC B0112/41 is not output.
HINT:
Codes other than code B0112/41 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK
2001 SIENNA (RM787U)
Author : Date : 563
DI-410
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
4 Check side squib (RH).
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
Airbag and wait at least for 90 seconds.
Squib (RH) Sensor
Assembly
(c) Connect the side airbag assembly (RH) connector.
(d) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
ACC ON CHECK:
(a) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
or (b) Clear the DTC stored in memory
DLC1 (See step 5 on page DI-358 ).
DTC B0112/41 (c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
E1 Tc (e) Check the DTC (See page DI-358 ).
H17217
OK:
AB0118 AB0119
R13006 H01067 H17559 DTC B0112/41 is not output.
HINT:
Codes other than code B0112/41 may be output at this time, but
they are not relevant to this check.
NG Replace side airbag assembly (RH).
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. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.
2001 SIENNA (RM787U)
Author : Date : 564
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