Mitsubishi Montero Sport (2004+). Manual — part 752
POST-COLLISION DIAGNOSIS
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-77
Steering wheel, steering column and intermediate joint
1. Check the wiring harness (built into the steering wheel) and
the connectors for damage, and the terminals for
deformation.
2. Install the air bag module to check fit or alignment with the
steering wheel.
3. Check the steering wheel for noise, binding or difficult
operation and excessive free play.
4. Check the steering column shaft shock absorbing
mechanism (Refer to GROUP 37A, On-Vehicle Service
−
Steering Column Shaft Assembly Shock Absorbing
Mechanism Check
.
Harness connector (front wiring harness, body wiring
harness)
Check the harnesses for binding, the connectors for damage,
poor connection, and the terminals for deformation. (Refer to
.)
.
Seat belt with pre-tensioner
1. Check the seat belt for damage or deformation.
2. Check the seat belt pre-tensioner for cracks or deformation.
3. Check that the unit is installed correctly to the vehicle body.
INDIVIDUAL COMPONENT SERVICE
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-78
INDIVIDUAL COMPONENT SERVICE
M1524002900215
WARNING
•
If heat damage may occur during paint work, remove the SRS-ECU, the air bag module,
the clock spring, the front impact sensor, the seat belt pre-tensioner. Recheck the SRS
system operability after reinstalling them. (Refer to GROUP 00, Maintenance Service-SRS
Maintenance
.)
•
SRS-ECU, air bag module, clock spring, front impact sensor: 93
°
C (200
°
F) or more
•
Seat belt with pre-tensioner: 90
°
C (194
°
F) or more
•
If the SRS components are removed for the purpose of check, sheet metal repair, painting,
etc., they should be stored in a clean, dry place until they are reinstalled.
If the SRS components are to be removed or replaced as a result of maintenance, diagnosis, etc., follow the
appropriate procedure in this section. (Front Impact Sensor: refer to
, SRS Air Bag Control Unit:
, Air Bag Modules and Clock Spring: refer to
, Seat Belts with Pre-tensioner: refer
to
FRONT IMPACT SENSORS
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-79
FRONT IMPACT SENSORS
M1524001500322
WARNING
•
Never attempt to disassemble or repair the SRS-ECU. If faulty, replace it.
•
Do not drop or subject the SRS-ECU to impact or vibration. If denting, cracking, deforma-
tion, or rust are discovered in the SRS-ECU, replace it with a new SRS-ECU. Discard the
old one.
•
After deployment of an air bag, replace the SRS-ECU with a new one.
•
Never use an ohmmeter on or near the SRS-ECU, and use only the special test equipment
described on
.
REMOVAL AND INSTALLATION
Pre-removal Operation
• Turn the ignition switch to the "LOCK" (OFF) position.
AC003309
1
2
FENDER
SHIELD
PANEL
FORWARD
2
2
4.9 N·m
43 in-lb
AB
REMOVAL STEPS
<<A>>
1.
NEGATIVE (
−) BATTERY CABLE
CONNECTION
2.
FRONT IMPACT SENSOR
INSTALLATION STEPS
>>A<<
•
PRE-INSTALLATION
INSPECTION
>>B<<
2.
FRONT IMPACT SENSOR
1.
NEGATIVE (
−) BATTERY CABLE
CONNECTION
>>C<<
•
POST-INSTALLATION
INSPECTION
FRONT IMPACT SENSORS
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-80
REMOVAL SERVICE POINT
.
<<A>> NEGATIVE (
−) BATTERY CABLE DISCONNECTION
DANGER
Wait at least 60 seconds after disconnecting the bat-
tery cable before doing any further work. (Refer to
.)
WARNING
Battery posts, terminals and related accessories con-
tain lead compounds. WASH HANDS AFTER HAN-
DLING.
Disconnect the negative (
−) battery cable from the battery and
tape the terminal to prevent accidental connection and deploy-
ment.
INSTALLATION SERVICE POINTS
.
>>A<< PRE-INSTALLATION INSPECTION
To mount the new front impact sensor, visually check it and
measure the resistance between the terminals, Refer to
"INSPECTION" (
.
>>B<< FRONT IMPACT SENSOR INSTALLATION
WARNING
The SRS may mot activate properly if a front impact
sensor is not installed properly, which could result in
serious injury or death to the vehicle's driver.
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.
.
>>C<< POST-INSTALLATION INSPECTION
1. Reconnect the negative (
−) battery cable.
2. Turn the ignition key to the "ON" position.
3. Does the "SRS" warning light illuminate for approximately 7
seconds, and then remain off for at least 5 seconds after
turning "OFF?"
4. If yes, the SRS system is functioning properly.
If no, consult
ACX00583
INSULATING TAPE
BATTERY
BATTERY CABLE (–)
AC
AC003310AC
CONNECTOR
LABEL
FENDER SHIELD
PANEL
FRONT IMPACT
SENSOR
FORWARD
AC003277AD
SRS WARNING LIGHT
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