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DI-434
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
DI4D2-05
DTC B0132/61 Short in P/T Squib (RH) Circuit (to
Ground)
CIRCUIT DESCRIPTION
The P/T squib (RH) circuit consists of the airbag sensor assembly and seat belt pretensioner (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 B0132/61 is recorded when a ground short is detected in the P/T squib (RH) circuit.
DTC No. DTC Detecting Condition Trouble Area
S Short circuit in P/T squib (RH) wire harness (to ground) S Seat belt pretensioner (RH)
B0132/61 S P/T squib (RH) malfunction S Airbag sensor assembly
S Airbag sensor assembly malfunction S Wire harness
WIRING DIAGRAM
See page DI-427 .
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-486 ).
2 Check P/T squib (RH) circuit.
CHECK:
For the connector (on the seat belt pretensioner side) between
the seat belt pretensioner (RH) and the airbag sensor assem-
Airbag
bly, measure the resistance between PR+ and body ground.
P/T Squib (RH) Sensor
Assembly OK:
Resistance: 1 M or Higher
PR+
(-) (+)
NG Repair or replace harness or connector be-
tween seat belt pretensioner (RH) and airbag
H01019 sensor assembly.
H08392 H08393
OK
2001 SIENNA (RM787U)
Author : Date : 588
DI-435
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
P/T Squib (RH) Airbag (b) Using a service wire, connect PR+ and PR- of the con-
Sensor
Assembly
nector (on the seat belt pretensioner side) between the
seat belt pretensioner (RH) and the airbag sensor assem-
bly.
(c) Connect negative (-) terminal cable to the battery, and
ACC ON wait at least for 2 seconds.
PR+ PR-
CHECK:
(a) Turn the ignition switch to ACC or ON and wait at least for
or
20 seconds.
(b) Clear the DTC stored in memory
(See step 5 on page DI-358 ).
DLC1 DTC B0132/61 (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.
H01020
E1 Tc (e) Check the DTC (See page DI-358 ).
H02139
AB0118 AB0119
R13006 H01079 H02208 OK:
DTC B0132/61 is not output.
HINT:
Codes other than code B0132/61 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 : 589
DI-436
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
4 Check P/T squib (RH).
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
Airbag
Sensor
and wait at least for 90 seconds.
P/T Squib (RH)
Assembly (c) Connect the seat belt pretensioner (RH) 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 ACC or ON, and wait at least
for 20 seconds.
or (b) Clear the DTC stored in memory
(See step 5 on page DI-358 ).
DLC1 (c) Turn the ignition switch to LOCK, and wait at least for 20
DTC B0132/61
seconds.
(d) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(e) Check the DTC (See page DI-358 ).
E1 Tc OK:
H01021
AB0118 AB0119 DTC B0132/61 is not output.
R13006 H01079 H01208
HINT:
Codes other than code B0132/61 may be output at this time, but
they are not relevant to this check.
NG Replace seat belt pretensioner (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 : 590
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