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DI-424
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
DI58N-02
DTC B0132/61 Short in LH and RH P/T Squib Circuit
(to Ground)
CIRCUIT DESCRIPTION
The LH and RH P/T squib circuits consist of the airbag sensor assembly and LH and RH seat belt pretension-
ers.
It causes the pretensioner to activate when the pretensioner activation 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 LH and RH P/T squib circuits.
DTC No. DTC Detecting Condition Trouble Area
S Short circuit in P/T squib (LH) wire harness (to ground)
S Seat belt pretensioner (LH)
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 P/T squib (LH) malfunction
S Wire harness
S Airbag sensor assembly malfunction
WIRING DIAGRAM
P27
P/T Squib (LH) Airbag Sensor Assembly
1 Y-B 2
C20 PL+
2 Y 1
C20 PL-
P28
P/T Squib (RH)
Y-B 5
1
C22 PR+
6
2 Y
C22 PR-
H03606
2002 4RUNNER (RM887U)
Author : Date : 600
DI-425
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
INSPECTION PROCEDURE
1 Prepare for inspection. (See step 1 on page DI-456 )
2 Check P/T squib (LH) circuit.
CHECK:
PL+ For the connector (on the airbag sensor assembly side) be-
tween the seat belt pretensioner and airbag sensor assembly,
measure the resistance between PL+ and body ground.
(-) (+) OK:
Resistance: 1 M or Higher
Airbag
P/T Squib (LH) Sensor
Assembly
NG Repair or replace harness or connector be-
tween the seat belt pretensioner (LH) and airbag
sensor assembly.
H02138
H03457 H03467
OK
3 Check P/T squib (RH) circuit.
CHECK:
For the connector (on the airbag sensor assembly side) be-
Airbag
tween the seat belt pretensioner and airbag sensor assembly,
Sensor measure the resistance between PR+ and body ground.
P/T Squib (RH) Assembly OK:
Resistance: 1 M or Higher
PR+
(-) (+)
NG Repair or replace harness or connector be-
H03459 tween the seat belt pretensioner (RH) and airbag
H02138 H03468
sensor assembly.
OK
2002 4RUNNER (RM887U)
Author : Date : 601
DI-426
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
4 Check airbag sensor assembly.
PREPARATION:
PL- PL+ (a) Connect the connectors to the airbag sensor assembly.
(b) Using a service wire, connect PL+ and PL- of the connec-
tor (on the seat belt pretensioner side) between the seat
belt pretensioner (LH) and airbag sensor assembly.
P/T Squib (LH) (c) Using a service wire, connect PR+ and PR- of the con-
nector (on the seat belt pretensioner side) between the
Airbag seat belt pretensioner (RH) and airbag sensor assembly.
Sensor (d) Connect negative (-) terminal cable to the battery, and
Assembly wait at least for 2 seconds.
CHECK:
P/T Squib (RH) (a) Turn ignition switch to ACC or ON and wait at least for 20
PR- PR+ seconds.
(b) Clear DTC stored in memory.
ACC ON
(See step 5 on page DI-377 )
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
or conds.
DLC1
DTC B0132/61 (d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC.
(See page DI-377 )
E1 Tc OK:
H02139
H03461
H02139
DTC B0132/61 is not output.
AB0118 AB0119
R13006 H01079 H03469 HINT:
Codes other than DTC B0132/61 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK
2002 4RUNNER (RM887U)
Author : Date : 602
DI-427
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
5 Check P/T squib (LH).
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
Airbag
P/T Squib (LH) Sensor and wait at least for 90 seconds.
Assembly (c) Connect the seat belt pretensioner (LH) connector.
(d) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
ACC ON (a) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
or (b) Clear DTC stored in memory.
(See step 5 on page DI-377 )
DLC1 (c) Turn ignition switch to LOCK, and wait at least for 20 se-
DTC B0132/61
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
E1 Tc (e) Check DTC. (See page DI-377 )
H03463
OK:
AB0118 AB0119
R13006 H01079 H03470 DTC B0132/61 is not output.
HINT:
Codes other than DTC B0132/61 may be output at this time, but
they are not relevant to this check.
NG Replace seat belt pretensioner (LH).
OK
2002 4RUNNER (RM887U)
Author : Date : 603
DI-428
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
6 Check P/T squib (LH).
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
Airbag and wait at least for 90 seconds.
Sensor
(c) Connect the seat belt pretensioner (RH) connector.
Assembly
(d) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
P/T Squib (RH)
CHECK:
ACC ON (a) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
or (b) Clear DTC stored in memory.
(See step 5 on page DI-377 )
DLC1 (c) Turn ignition switch to LOCK, and wait at least for 20 se-
DTC B0132/61
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
E1 Tc (e) Check DTC. (See page DI-377 )
H03465
OK:
AB0118 AB0119
R13006 H01079 H03471 DTC B0132/61 is not output.
HINT:
Codes other than DTC 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.
2002 4RUNNER (RM887U)
Author : Date : 604
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