2001 TOYOTA PRIUS Service Repair Manual

AB0119H01007
H01066H10600H12033
Airbag
Sensor
Assembly Side Airbag Sensor Assembly (LH)
CG
TcON
" u
DTC B1141/33 " u
DLC3
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±615
2001 PRIUS (RM778U)
8 Is DTC B1141/33 out put again?
PREPARATION:
(a) Connect the connector to the side airbag sensor assem-
bly (LH).
(b) Connect the connector to 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 B1141/33 is not output.
HINT:
Codes other than code B1141/33 may be output at this time, but
they are not relevant to this check.
NO Go to step 9.
YES
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.

AB0119H01007
H01066H10600H12033
Airbag
Sensor
Assembly
Side Airbag Sensor
Assembly (RH)
CG
TcON
DTC B1141/33 " u
DLC3
DI±616
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
9 Check airbag sensor assembly.
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect negative (±) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Disconnect the side airbag sensor (LH) from the connec-
tor and connect the side airbag sensor (RH) to the con-
nector.
(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 B1141/33 is not output.
HINT:
Codes other than code B1141/33 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

AB0119H01012
H01065H10600H13119
Airbag
Sensor
Assembly Side Airbag Sensor
Assembly (LH)
CG TcON
DTC B1140/32 " u
DLC3
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±617
2001 PRIUS (RM778U)
10 Check side airbag sensor assembly (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 sensor (LH) to the connector that
the side airbag sensor (RH) was connected to.
(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 B1140/32 is not output.
HINT:
Codes other than code B1140/32 may be output at this time, but
they are not relevant to this check.
NG Replace side airbag sensor 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.

H16901
Airbag Sensor Assembly Front Airbag Sensor (RH)
+SR
±SR A18
A189
20 B±W
BR±W IL13
4 B±W
BR±W 2
1 +SR
±SR IL1 DI±618
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
DTC B1156/B1157/15 Front Airbag Sensor (RH) Malfunction
CIRCUIT DESCRIPTION
The front airbag sensor (RH) circuit consists of the airbag sensor assembly and front airbag sensor (RH).
For details of the function of each component, see OPERATION on page RS±2.
DTC B1156/B1157/15 is recorded when a malfunction is detected in the front airbag sensor (RH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1156/B1157/15
Front airbag sensor (RH) malfunction

Front airbag sensor (RH)

Airbag sensor assembly

Wire harness

Engine room No. 2 wire harness
WIRING DIAGRAM
DI6PW±06