2001 TOYOTA PRIUS Service Repair Manual

± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±599
2001 PRIUS (RM778U)
DTC B1135/24 Harf Connection in Airbag Sensor Assembly
Connector
CIRCUIT DESCRIPTION
The airbag sensor assembly detects partial connection of connector.
For details of the function of each component, see OPERATION on page RS±2.
DTC B1135/24 is recorded when the airbag sensor assembly detects an open in the electrical connection
chech mechanism of the airbag sensor connector or in the airbag sensor circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1135/24

Malfunction of electrical connection check mechanism of
airbag sensor assembly connector

Airbag sensor assembly malfunction
Electrical connection check mechanism

Airbag sensor assembly
INSPECTION PROCEDURE
1 Are connector of center airbag sensor assembly properly connected?
NG Connect connectors.
OK
2 Prepare for inspection (See step 1 on page DI±629).
DI7IA±06

H15222
ON
Airbag
Sensor
Assembly
DTC B1135/24
DLC3
CGT
c
DI±600
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connectors 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 LOCK, and wait at least for 20
seconds.
(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 B1135/24 is not output.
HINT:
Codes other than code B1135/24 may be output at this time, but
they are not relevant to this check.
NG Go to the next step.
OK
From the results of the inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.

H14983
H15243
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±601
2001 PRIUS (RM778U)
4 Check disconnection detection pin in the center airbag sensor assembly
connector.
CHECK:
With 3 connectors connected to the sensor assembly, place
tester leads onto any 2 of 3 disconnection detection pins and
check for continuity.
OK:
Continuity
NG Go to the next step.
OK
From the results of the inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.
5 Perform a visual check of the disconnection detection pin.
OK:
No deformation is identified.
HINT:
Compare it with the other 2 connector pins.
NG Repair or replace airbag sensor assembly
connector.
OK
Replace airbag sensor assembly.

H01450
Side Airbag Sensor Assembly (RH)
Airbag Sensor Assembly
GR
LG
L±Y
P ESR
FSR
SSR+
VUPR4
3
2
1A1910
7
9
12ESR
SSR±
SSR+
VUPR A19
A19
A19 DI±602
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
DTC B1140/32 Side Airbag Sensor Assembly (RH)
Malfunction
CIRCUIT DESCRIPTION
The side airbag sensor assembly (RH) consists of the safing sensor, diagnosis circuit and lateral decelera-
tion sensor, etc.
It receives signals from the lateral deceleration sensor, judges whether or not the SRS must be activated,
and detects diagnosis system malfunction.
DTC B1140/32 is recorded when occurrence of a malfunction in the side airbag sensor assembly (RH) is
detected.
DTC No.DTC Detecting ConditionTrouble Area
B1140/32
Side airbag sensor assembly (RH) malfunction

Side airbag sensor assembly (RH)

Wire harness

Airbag sensor assembly
WIRING DIAGRAM
DI6PS±03

H09528AB0119H10600H12032
ON
CG
TcDTC B1140/32
DLC3
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±603
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Is DTC B1140/32 out put?
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).
HINT:
Codes other than code B1140/32 may be output at this time, but
they are not relevant to this check.
YES The malfunctioning part can now be considered
normal. To make sure of this, use the simulation
method to check.
NO
2 Is connector of side airbag sensor assembly (RH) properly connected?
3 Prepare for inspection (See step 1 on DI±629).