Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 rs cib01001
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DI-371
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
DI4CK-06
CIRCUIT INSPECTION
DTC B0100/13 Short in D Squib Circuit
CIRCUIT DESCRIPTION
The D squib circuit consists of the airbag sensor assembly, spiral cable and steering wheel pad.
It causes the airbag to deploy when the airbag deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS-2 .
DTC B0100/13 is recorded when a short is detected in the D squib circuit.
DTC No. DTC Detecting Condition Trouble Area
S Short circuit between D+ wire harness and D- wire har-
S Steering wheel pad (D squib)
ness of squib
S Spiral cable
B0100/13 S D squib malfunction
S Airbag sensor assembly
S Spiral cable malfunction
S Wire harness
S Airbag sensor assembly malfunction
WIRING DIAGRAM
Airbag Sensor Assembly
D Squib
14
1 Y-B
C5 D+
13
2 Y
C5 D-
Spiral
Cable
H01451
2001 SIENNA (RM787U)
Author : Date : 525
DI-372
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-486 ).
2 Check D squib circuit.
PREPARATION:
Release the airbag activation prevention mechanism of the
Spiral Airbag connector (on the airbag sensor assembly side) between the
Sensor
Cable airbag sensor assembly and the spiral cable
Assembly
D Squib (See page DI-358 ).
CHECK:
For the connector (on the spiral cable side) between the spiral
cable and the steering wheel pad, measure the resistance be-
D- D+ tween D+ and D-.
OK:
Resistance: 1 M or Higher
(-) (+)
H01001
H02142 H02193
NG Go to step 5.
OK
2001 SIENNA (RM787U)
Author : Date : 526
DI-373
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
Airbag
Spiral wait at least for 2 seconds.
Sensor
Cable CHECK:
Assembly
D Squib (a) Turn the ignition switch to ACC or ON and wait at least for
20 seconds.
ACC ON (b) Clear the DTC stored in memory (See page DI-358 ).
(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 DTC B0100/13 (e) Check the DTC (See page DI-358 ).
OK:
DTC B0100/13 is not output.
HINT:
Codes other than code B0100/13 may be output at this time, but
E1 Tc
they are not relevant to this check.
H01002
AB0118 AB0119
R13006 FI1390 H07478
NG Replace airbag sensor assembly.
OK
2001 SIENNA (RM787U)
Author : Date : 527
DI-374
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
4 Check D squib.
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
Spiral Airbag and wait at least for 90 seconds.
Cable Sensor
Assembly (c) Connect the steering wheel pad connector.
D Squib (d) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
ACC ON CHECK:
(a) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
or (b) Turn the ignition switch to ACC or ON, and wait at least
DLC1 DTC B0100/13 for 20 seconds.
(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.
E1 Tc (e) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(f) Check the DTC (See page DI-358 ).
H01003
AB0118 AB0119 OK:
R13006 FI1390 H01136
DTC B0100/13 is not output.
HINT:
Codes other than code B0100/13 may be output at this time, but
they are not relevant to this check.
NG Replace steering wheel pad.
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 : 528
DI-375
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
5 Check spiral cable.
PREPARATION:
(a) Disconnect the connector between the airbag sensor as-
Spiral
Airbag sembly and the spiral cable.
Sensor (b) Release the airbag activation prevention mechanism of
Cable
Assembly
D Squib the spiral cable connector on the airbag sensor assembly
side (See page DI-358 ).
CHECK:
For the connector (on the spiral cable side) between the spiral
D- D+
cable and the steering wheel pad, measure the resistance be-
tween D+ and D-.
OK:
Resistance: 1 M or Higher
(-) (+)
H01000
H02142 H02195
NG Repair or replace spiral cable.
OK
6 Check harness between airbag sensor assembly and spiral cable.
PREPARATION:
Release the airbag activation prevention mechanism of the
connector (on the airbag sensor assembly side) between the
Airbag airbag sensor assembly and the spiral cable
Spiral
Sensor (See page DI-358 ).
Cable
Assembly
CHECK:
D Squib
For the connector (on the spiral cable side) between the airbag
sensor assembly and the spiral cable, measure the resistance
between D+ and D-.
D- D+
OK:
Resistance: 1 M or Higher
(-) (+)
H01004
R14286 H01138 NG Repair or replace harness or connector be-
tween airbag sensor assembly and spiral cable.
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 : 529
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