2001 TOYOTA PRIUS Service Repair Manual

H10600 H01018 AB0119
H01071H12030
"u
TcAirbag
Sensor
Assembly Squib (LH)
DTC B0117/45 ON
DLC3
CG
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±567
2001 PRIUS (RM778U)
4 Check side 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 front side airbag assembly (LH) 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 B0117/45 is not output.
HINT:
Codes other than code B0117/45 may be output at this time, but
they are not relevant to this check.
NG Replace front side airbag assembly (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. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.

H01016AB0119
H09670H12958
Squib (LH)Airbag
Sensor
Assembly
FL+
(±)(+)
ON
DI±568
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
DTC B0118/46 Short in Side Squib (LH) Circuit (to B+)
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 B0118/46 is recorded when a B+ short is detected in the side squib (LH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0118/46

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

Side squib (LH) malfunction

Airbag sensor assembly malfunction
Side airbag assembly (LH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
See page DI±553.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI±629).
2 Check side squib (LH) circuit.
CHECK:
(a) Turn the ignition switch to ON.
(b) For the connector (on the side airbag assembly side) be-
tween the side airbag assembly (LH) and the airbag sen-
sor assembly, measure the voltage between FL+ and
body ground.
OK:
Voltage: 0 V
NG Repair or replace harness or connector be-
tween side airbag assembly (LH) and airbag
sensor assembly.
OK
DI6PI±01

AB0119H01017
H01072 H10600H09671H13044
Squib (LH)
Airbag
Sensor
Assembly
FL+
CG
TcDTC B0118/46
" u
FL±
ON
DLC3
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±569
2001 PRIUS (RM778U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect FL+ and FL± of the connec-
tor (on the side airbag assembly side) between the side
airbag assembly (LH) 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 B0118/46 is not output.
HINT:
Codes other than code B0118/46 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

H01018AB0119H01072H10600H13118
"uAirbag
Sensor
Assembly Squib (LH)
DTC B0118/46 ON
DLC3
Tc CG
DI±570
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
4 Check side 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 side airbag assembly (LH) 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 B0118/46 is not output.
HINT:
Codes other than code B0118/46 may be output at this time, but
they are not relevant to this check.
NG Replace side airbag assembly (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. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.