Mitsubishi Pajero Pinin. Manual — part 313
SRS –
Warning/Caution Labels
52B-31
WARNING/CAUTION LABELS
Caution labels on the SRS are attached in the vehicle
as shown. Follow label instructions when servicing
the SRS. If the label(s) are dirty or damaged, replace
with new one(s).
Steering wheel
Driver’s air bag module
Clock spring
Front passenger’s
air bag module
SRS-ECU
Sun visor
Steering gear box
Side impact sensor
Glove box
Quarter
panel,
inner
Instrument panel
Seat belt with pre-tensioner
Hood
SRS –
Front Impact Sensors
52B-32
FRONT IMPACT SENSORS
Caution
1.
Disconnect the battery (–) terminal and wait
for 60 seconds or more before starting work.
Furthermore, the disconnected battery
terminal should be covered with tape to
insulate it. (Refer to P.52B-4.)
2.
Never attempt to disassemble or repair the
front impact sensor. If faulty, replace it.
3.
Do not drop or subject the front impact
sensor to impact or vibration.
If denting, cracking, deformation, or rust are
discovered in the front impact sensor,
replace it with a new front impact sensor.
Discard the old one.
4.
After deployment of an air bag, replace the
front impact sensor with a new one.
REMOVAL AND INSTALLATION
Pre-removal Operation
D
Turn Ignition Key to LOCK (OFF) position.
D
Disconnect the Negative (–) Battery Terminal.
Front side member
4.9 Nm
2
1
Removal steps
1. Under cover
2. Front impact sensor
Installation steps
"
A
A D
Pre-installation inspection
"
B
A
2. Front impact sensor
1. Under cover
D
Negative (–) battery cable connection
"
C
A D
Post-installation inspection
INSTALLATION SERVICE POINTS
"
A
A
PRE-INSTALLATION INSPECTION
To mount the new front impact sensor, visually check it and
measure the resistance between the terminals. (Refer to the
previous item “INSPECTION”)
SRS –
Front Impact Sensors
52B-33
"
B
A
FRONT IMPACT SENSOR INSTALLATION
1.
Securely connect the connector.
2.
Position the front impact sensor facing toward the front
of the vehicle as shown by the arrow on the label, and
install it securely.
Caution
The SRS may not activate properly if a front impact
sensor is not installed properly, which could result
in serious injury or death to the vehicle’s driver.
"
C
A
POST-INSTALLATION INSPECTION
1.
Reconnect the negative battery terminal.
2.
Turn the ignition key to the “ON” position.
3.
Does the “SRS” warning lamp illuminate for about 7
seconds, and then remain extinguished for at least 5
seconds after turning OFF?
4.
If yes, SRS system if functioning properly.
If no, consult page 52B-8.
INSPECTION
1.
Check the front impact sensor for dents, cracks,
deformation or rust.
Caution
If a dent, crack, deformation or rust is detected, replace
with a new sensor.
2.
Measure the resistance between terminals and check
whether it is within the standard value.
Standard value: 820
±
82
Ω
Caution
Always replace the sensor with a new one if the
resistance is not within the standard value.
3.
Check front side member for deformation or rust.
4.
Check the continuity between the terminal and bracket.
If there is a continuity, the insulation is malfunctioned,
and replace the sensor with a new one.
Front side member
Front impact
sensor
Connector
Label
Forward
SRS warning lamp
SRS –
SRS-ECU
52B-34
SRS AIR BAG CONTROL UNIT (SRS-ECU)
Caution
1.
Disconnect the negative (–) battery terminal
and wait for 60 seconds or more before
starting work. Also, the disconnected battery
terminal should be insulated with tape.
(Refer to P.52B-4.)
2.
Never attempt to disassemble or repair the
SRS-ECU. If faulty, just replace with a new
one.
3.
Do not drop or subject the SRS-ECU to
impact or vibration.
If denting, cracking, deformation, or rust are
found in the SRS-ECU, replace it with a new
one. Discard the old one.
4.
After deployment of the air bags, replace
the SRS-ECU with a new one.
5.
Never use an ohmmeter on or near the
SRS-ECU, and use only the special test
equipment described on P.52B-7.
REMOVAL AND INSTALLATION
Pre-removal Operation
D
Turn Ignition Key to LOCK (OFF) Position.
D
Disconnect the Negative (–) Battery Terminal.
1
2
5 Nm
1
3
4
Removal steps
D
Floor console (Refer to GROUP 52A.)
1. Bracket mounting bolts
2. Bracket mounting bolt
(Earth bolt)
3. SRS-ECU
4. SRS-ECU bracket
Installation steps
4. SRS-ECU bracket
"
A
A
3. SRS-ECU
"
B
A
2. Bracket mounting bolt
(Earth bolt)
1. Bracket mounting bolt
D
Floor console (Refer to GROUP 52A.)
D
Negative (–) battery cable connection
"
C
A D
Post-installation inspection
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