2001 TOYOTA PRIUS Service Repair Manual

H01021AB0119H01081 H10600H10626
"u
ONAirbag
Sensor
Assembly P/T Squib (RH)
DTC B0133/62 DLC3
Tc CG
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±583
2001 PRIUS (RM778U)
4 Check P/T squib (RH).
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (±) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Connect the seat belt pretensioner (RH) connector.
(d) Connect negative (±) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ON, and wait at least for 20 se-
conds.
(b) Clear the DTC stored in memory (See step 5 on page
DI±497).
(c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d) Turn the ignition switch to ON, and wait at least for 20 se-
conds.
(e) Check the DTC (See page DI±497).
OK:
DTC B0133/62 is not output.
HINT:
Codes other than code B0133/62 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.

H01454
P/T Squib (LH)
PL+
PL± 2
11 2
A17
A17 Y±B
YAirbag Sensor Assembly DI±584
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
DTC B0135/73 Short in P/T Squib (LH) Circuit
CIRCUIT DESCRIPTION
The P/T squib (LH) circuit consists of the airbag sensor assembly and seat belt pretensioner (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 B0135/73 is recorded when a short is detected in the P/T squib (LH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0135/73

Short circuit between PL+ wire harness and PL± wire har-
ness of squib

P/T squib (LH) malfunction

Airbag sensor assembly malfunction
Seat belt pretensioner (LH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
DI6PN±06

H01016H02141H02211
P/T Squib (LH)Airbag
Sensor
Assembly
PL±
PL+
(+) (±)
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±585
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI±629).
2 Check P/T squib (LH) circuit.
PREPARATION:
Release the airbag activation prevention mechanism of the
connector (on the airbag sensor assembly side) between the
airbag sensor assembly and the seat belt pretensioner (LH)
(See page DI±497).
CHECK:
For the connector (on the seat belt pretensioner side) between
the seat belt pretensioner (LH) and the airbag sensor assembly,
measure the resistance between PL+ and PL±.
OK:
Resistance: 1 MW or Higher
NG Repair or replace harness or connector be-
tween seat belt pretensioner (LH) and airbag
sensor assembly.
OK

H01017AB0119H01086
H10600H10627
P/T Squib (LH)
Airbag
Sensor
Assembly
DTC B0135/73
ON" u
DLC3
Tc CG
DI±586
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
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.
CHECK:
(a) Turn the ignition switch to ON and wait at least for 20 se-
conds.
(b) Clear the DTC stored in memory (See page DI±497).
(c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d) Turn the ignition switch to ON, and wait at least for 20 se-
conds.
(e) Check the DTC (See page DI±497).
OK:
DTC B0135/73 is not output.
HINT:
Codes other than code B0135/73 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

H01018AB0119H01086
H10600H10628
"u
ONAirbag
Sensor
Assembly P/T Squib (LH)
DTC B0135/73
DLC3
Tc CG
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±587
2001 PRIUS (RM778U)
4 Check P/T squib (LH).
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect negative (±) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Connect the seat belt pretensioner (LH) connector.
(d) Connect negative (±) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to LOOK, and wait at least for 20
second.
(b) Turn the ignition switch to ON, and wait at least for 20 se-
conds.
(c) Clear the DTC stored in memory (See page DI±497).
(d) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(e) Turn the ignition switch to ON, and wait at least for 20 se-
conds.
(f) Check the DTC (See page DI±497).
OK:
DTC B0135/73 is not output.
HINT:
Codes other than code B0135/73 may be output at this time, but
they are not relevant to this check.
NG Replace seat belt pretensioner (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.