TOYOTA PRIUS 2001 Service Repair Manual

H01019H09668H12947
Squib (RH)Airbag
Sensor
Assembly
(±) (+)
FR+ FR±
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±549
2001 PRIUS (RM778U)
DTC B0111/44 Open in Side Squib (RH) Circuit
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 B0111/44 is recorded when an open is detected in the side squib (RH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0111/44

Open circuit in FR+ wire harness or FR± wire harness of
squib

Side squib (RH) malfunction

Airbag sensor assembly malfunction
Side airbag assembly (RH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
See page DI±540.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI±629).
2 Check front side squib (RH) circuit.
CHECK:
For the connector (on the front side airbag assembly side) be-
tween the front side airbag assembly (RH) and the airbag sen-
sor assembly, measure the resistance between FR+ and FR±.
OK:
Resistance: Below 1 W
NG Repair or replace harness or connector be-
tween side airbag assembly (RH) and airbag
sensor assembly.
OK
DI6PC±01

AB0119
H01070 H10600H01020H09671H13039
Squib (RH)Airbag
Sensor
Assembly
FR+
FR±
DTC B0111/44
" u
ON
DLC3
CG
Tc
DI±550
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect FR+ and FR± of the con-
nector (on the side airbag assembly side) between the
side airbag assembly (RH) and the airbag sensor assem-
bly.
(c) 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 B0111/44 is not output.
HINT:
Codes other than code B0111/44 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

H10600 H01021
H01070 AB0119H12020
"u
Squib (RH)
Airbag
Sensor
Assembly
DTC B0111/44 ON
DLC3
CGTc
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±551
2001 PRIUS (RM778U)
4 Check side squib (RH).
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 front side airbag assembly (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 page DI±497).
(c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d) Turn the ignition switch to or ON, and wait at least for 20
seconds.
(e) Check the DTC (See page DI±497).
OK:
DTC B0111/44 is not output.
HINT:
Codes other than code B0111/44 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.

H01019H09669H12949
Airbag
Sensor
Assembly Squib (RH)
(+)FR+
(±)
DI±552
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
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 ConditionTrouble Area
B0112/41

Short circuit in side squib (RH) wire harness (to ground)

Side squib (RH) malfunction

Airbag sensor assembly malfunction
Side airbag assembly (RH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
See page DI±540.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI±629).
2 Check side squib (RH) circuit.
CHECK:
For the connector (on the side airbag assembly side) between
the side airbag assembly (RH) and the airbag sensor assembly,
measure the resistance between FR+ and body ground.
OK:
Resistance: 1 MW or Higher
NG Repair or replace harness or connector be-
tween side airbag assembly (RH) and airbag
sensor assembly.
OK
DI6PD±01

AB0119
H01070 H10600H01020H09671H13040
Airbag
Sensor
Assembly Squib (RH)
FR±
DLC3
" u
FR+
Tc CGON
DTC B0112/41
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±553
2001 PRIUS (RM778U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect FR+ and FR± of the con-
nector (on the side airbag assembly side) between the
side airbag assembly (RH) and the airbag sensor assem-
bly.
(c) 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 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

H10600 H01021
H01070 AB0119H12022
"u
DTC B0112/41
Tc CGON Airbag
Sensor
Assembly Squib (RH)
DLC3
DI±554
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
4 Check side squib (RH).
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 side airbag assembly (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 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.

H01019AB0119
H09670H12951
Squib (RH)Airbag
Sensor
Assembly
(±)(+)FR+
ON
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±555
2001 PRIUS (RM778U)
DTC B0113/42 Short in Side Squib (RH) Circuit (to B+)
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 B0113/42 is recorded when a B+ short is detected in the side squib (RH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0113/42

Short circuit in side squib (RH) wire harness (to B+)

Side squib (RH) malfunction

Airbag sensor assembly malfunction
Side airbag assembly (RH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
See page DI±540.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI±497).
2 Check side squib (RH) circuit.
CHECK:
(a) Turn the ignition switch to ON.
(b) For the connector (on the airbag sensor assembly side)
between the side airbag assembly (RH) and the airbag
sensor assembly, measure the voltage between FR+ and
body ground.
OK:
Voltage: 0 V
NG Repair or replace harness or connector be-
tween side airbag assembly (RH) and airbag
sensor assembly.
OK
DI6PE±01

H10600H01068 AB0119 H01020H09671H13041
"u
DLC3DTC B0113/42 Squib (RH)Airbag
Sensor
Assembly
FR±FR+
ON
CG
Tc
DI±556
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect FR+ and FR± of the con-
nector (on the front side airbag assembly side) between
the front side airbag assembly (RH) and the airbag sensor
assembly.
(c) 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 B0113/42 is not output.
HINT:
Codes other than code B0113/42 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

AB0119H01068 H10600 H01021H12024
"u
Airbag
Sensor
Assembly Squib (RH)
ON
CGDTC B0113/42
DLC3
Tc
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±557
2001 PRIUS (RM778U)
4 Check side squib (RH).
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 front side airbag assembly (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 B0113/42 is not output.
HINT:
Codes other than code B0113/42 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.

H01454
Side Squib (LH)Airbag Sensor Assembly
SFL+
SFL± Y±R
Y±G 1
25 6
A17
A17 DI±558
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
DTC B0115/47 Short in Side Squib (LH) Circuit
CIRCUIT DESCRIPTION
The side squib (LH) circuit consists of the airbag sensor assembly and side airbag assembly (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 B0115/47 is recorded when a short is detected in the side squib (LH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0115/47

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

Side squib (LH) malfunction

Airbag sensor assembly malfunction
Side airbag assembly (LH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
DI6PF±04