1996 TOYOTA LAND CRUISER sensor

R11937
Airbag Sensor
Assembly
Spiral
Cable
Front Passenger
Airbag Assembly
Steering Wheel
Pad
Instrument Panel
Junction Block Junction
Block No. 1
−
SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG
RS−3
1996 LAND CRUISER (RM451U)
6. SRS CONNECTORS
No.ItemApplication
(1)Terminal Twin−Lock MechanismConnectors 1, 2, 3, 4, 5, 6, 7
(2)Airbag Activation Prevention MechanismConnectors 2, 3, 4
(3)Electrical Connection Check MechanismConnectors 1
(4)Connector Twin −Lock MechanismConnectors 2, 3, 4
(a) All connectors in the SRS are colored yellow to distin-
guish them from other connectors. Connectors having
special functions and specifically designed for the SRS
are used in the locations shown above to ensure high reli-
ability. These connectors use durable gold −plated termi-
nals.
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Z05490
Secondary LockPrimary Lock Lock Lock
Primary Lock Incomplate
(Secondary Lock Prevended) Primary Lock Complate
(Secondary Lock Permitted
Twin−Lock Complated
Z14034
Fig.1
Fig.2 Power Source
SafingSensor Squibs
Airbag
Sensor
RS−6
−
SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG
1996 LAND CRUISER (RM451U)
(4) Connector Twin −Lock Mechanism
With this mechanism connectors (male and female
connectors) are locked by 2 locking devices to in-
crease connection reliability. If the primary lock is in-
complete, ribs interfere and prevent the secondary
lock.
(b) When the vehicle is involved in a frontal collision in the hatched area (Fig. 1) and the shock is larger than the pre-
determined level, the SRS is activated automatically. A
safing sensor is designed to go on at a smaller decelera-
tion rate than the airbag sensor. As illustrated in Fig. 2,
ignition is caused when current flows to the squib, which
happens when a safing sensor and the airbag sensor go
on simultaneously.When a deceleration force acts on the
sensors, two squibs in the driver airbag and front passen-
ger airbag ignite and generate gas. The gas discharging
into the driver airbag and front passenger airbag rapidly
increases the pressure inside the bags, breaking open
the steering wheel pad and instrument panel door.
Bag inflation then ends, and the bags deflate as the gas
is discharged through discharge holes at the bag’s rear or
side.
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RS0PD−01
RS−32
−
SUPPLEMENTAL RESTRAINT SYSTEM AIRBAG SENSOR ASSEMBLY
1131
Author: Date:
1996 LAND CRUISER (RM451U)
AIRBAG SENSOR ASSEMBLY
COMPONENTS
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RS0PE−01
−
SUPPLEMENTAL RESTRAINT SYSTEM AIRBAG SENSOR ASSEMBLY
RS−33
1996 LAND CRUISER (RM451U)
REMOVAL
NOTICE:
Do not open the cover or the case of the ECU and various
computers unless absolutely necessary.
(If the IC terminals are touched, the IC may be destroyed by
static electricity.)
1. REMOVE THESE PARTS:
(a) Transfer shirt knob
(b) Front console box
2. REMOVE AIRBAG SENSOR ASSEMBLY
(a) Disconnect the connector.
NOTICE:
Remove the connector with the sensor assembly installed.
(b) Using a torx wrench remove the 4 screws and the airbag sensor assembly.
Torx wrench: T40 (Part No. 09042 −00020 or locally
manufactured tool)
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RS0PH−01
RS−34
−
SUPPLEMENTAL RESTRAINT SYSTEM AIRBAG SENSOR ASSEMBLY
1996 LAND CRUISER (RM451U)
INSPECTION
1. VEHICLE NOT INVOLVED IN COLLISION
Do a diagnostic system check. (See page DI−240)
2. VEHICLE INVOLVED IN COLLISION AND AIRBAG IS NOT DEPLOYED
Do a diagnostic system check. (See page DI−240)
3. VEHICLE INVOLVED IN COLLISION AND AIRBAG IS DEPLOYED
Replace the airbag sensor assembly. (See page RS−32)
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RS0PG−01
−
SUPPLEMENTAL RESTRAINT SYSTEM AIRBAG SENSOR ASSEMBLY
RS−35
1996 LAND CRUISER (RM451U)
REPLACEMENT
REPLACEMENT REQUIREMENTS
In the following cases, replace the airbag sensor assembly.
If the SRS has been deployed in a collision.
If the airbag sensor assembly has been found to be faulty in troubleshoo\
ting.
If the airbag sensor assembly has been dropped.
CAUTION:
For removal and installation of the airbag sensor assembly, see page RS−33 and RS−36 . Be sure to
follow the correct procedure.
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RS0PF−01
RS−36
−
SUPPLEMENTAL RESTRAINT SYSTEM AIRBAG SENSOR ASSEMBLY
1996 LAND CRUISER (RM451U)
INSTALLATION
NOTICE:
Never use SRS parts from another vehicle. When replacing parts, replace with \
new parts.
Never reuse the airbag sensor assembly involved in a collision when the airbag has deployed.
Never repair a sensor in order to reuse it.
1. INSTALL AIRBAG SENSOR ASSEMBLY
(a) Using a torx wrench, install the airbag sensor assembly with the 4 screw\
s. Torx wrench: T40 (Part No. 09042 −00020 or locally manufactured tool)
Torque: 21 N·m (210 kgf·cm, 15 ft·lbf)
(b) Connect the connector.
NOTICE:
Installation of the connector is done with the sensor assembly installed\
.
Make sure the sensor assembly is installed to the specified torque.
If the sensor assembly has been dropped, or there are cracks, dents or o\
ther defects in the
case, bracket or connector, replace the sensor assembly with a new one.
When installing the sensor assembly, take care that the SRS wiring does not interfere with other
parts and is not pinched between other parts.
After installation, shake the sensor assembly to check that there is no \
looseness.
2. INSTALL THE REMOVED PARTS
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RS0PK−01
R13515
Front Passenger Airbag Assembly
Steering Wheel Pad Airbag Sensor Assembly
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SUPPLEMENTAL RESTRAINT SYSTEM WIRE HARNESS AND CONNECTOR
RS−37
1136
Author: Date:
1996 LAND CRUISER (RM451U)
WIRE HARNESS AND CONNECTOR
LOCATION
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