2007 MITSUBISHI LANCER EVOLUTION wheel

SRS - Post-collision Diagnosis52B-46
REPAIR PROCEDURE
DEPLOYED DRIVER’S AND FRONT PASSENGER’S AIR
BAGS OR OPERATED SEAT BELT PRE-TENSIONER.
1. Replace the following parts with new ones.
DSRS-ECU (Refer to P.52B-50.)
DDriver’s air bag module (Refer to P.52B-52.)
DFront passenger’s air bag module (Refer to P.52B-52.)
DSeat belt with pre-tensioner (Refer to P.52B-61.)
2. Check the following parts and replace if malfunction is
found:
DClock spring (Refer to P.52B-52.)
DSteering wheel, steering column and intermediate
joint
(1) Check the wiring harness (built into steering
wheel) and connectors for damage, and terminals
for deformation.
(2) Check the driver’s air bag module for proper
installation to the steering wheel.
(3) Check the steering wheel for noise, binds or
difficult operation and excessive free play.
3. Check the harness for binding, connectors for damage,
poor connections, and terminals for deformation.
(Refer to P.52B-44.)
UNDEPLOYED AIR BAGS OR UNOPERATED SEAT BELT
WITH PRE-TENSIONER IN LOW-SPEED COLLISION
Check the SRS components and seat belt with pre-tensioner.
If visible damage such as dents, cracks, or deformation are
found on the SRS components and seat belt with
pre-tensioner, replace them with new ones. Concerning parts
removed for inspection, replacement with new parts and
cautions in working, refer to INDIVIDUAL COMPONENT
SERVICE, P.52B-49.

SRS - Post-collision Diagnosis52B-47
SRS-ECU
1. Check the SRS-ECU case and bracket for dents, cracks
or deformation.
2. Check the connector for damage, and terminals for
deformation.
3. Check the SRS-ECU and bracket for proper installation.
Driver’s and passenger’s air bag modules
1. Check the covers for dents, cracks or deformation.
2. Check the connectors for damage, the terminals
deformities, and the harness for binds.
3. Check the air bag inflator cases for dents, cracks or
deformities.
4. Check the air bag modules for proper installation.
Clock spring
1. Check the clock spring connectors and protective tubes
for damage, and terminals for deformation.
2. Visually check the case for damage.
SRS-ECU
Inflator
Connector
Connector
Steering
wheel - driver’s
air bag module
assembly



Connector Inflator case
Protective tubesCase

SRS - Post-collision Diagnosis52B-48
Steering wheel, steering column and intermediate joint
1. Check the driver’s air bag module for proper installation
to the steering wheel.
2. Check the steering wheel for noise, binds or difficult
operation and excessive free play.
Harness connector (Instrument panel wiring harness,
Floor wiring harness)
Check the harness for binds, the connector for damage and
the terminals for deformation. (Refer to P.52B-44.)
Seat belt with pre-tensioner
1. Check the seat belt for damage or deformation.
2. Check the pre-tensioner for cracks or deformation.
3. Check the harness or the connector for damage, and
the terminal for deformation.
4. Check that the unit is installed correctly to the vehicle
body.

SRS - Individual Component Service/Warning/Caution Labels52B-49
INDIVIDUAL COMPONENT SERVICE
If the SRS components and seat belt with pre-tensioner are to be removed or replaced as a result of
maintenance, troubleshooting etc., follow the service procedures that follow.
Caution
1. SRS components and seat belt with pre-tensioner should not be subjected to heat, so remove
the SRS-ECU, driver’s air bag module, steering wheel -air bag module,front
passenger’s air bag module, clock spring, and seat belt with pre-tensioner before drying or
baking the vehicle after painting.
DFront impact sensor, SRS-ECU, Air bag module, clock spring: 93_C or more
DSeat belt with pre-tensioner: 90_C or more
Recheck SRS system operability after re-installing them.
2. If the SRS components and seat belt with pre-tensioner 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.
WARNING/CAUTION LABELS
Caution labels on the SRS are attached in the
vehicle as shown. Follow label instructions whenservicing the SRS. If the label(s) are dirty or
damaged, replace with new one(s).
Steering wheel
Driver’s air bag module
Clock springFront passenger’s
air bag moduleSRS-ECU
Sun visor
Steering joint cover
Glove boxCover
Seat belt with pre-tensioner

SRS - Air Bag Modules and Clock Spring52B-53
REMOVAL AND INSTALLATION

Pre-removal Operation
Disconnect the Negative ( - ) Battery Terminal.

3 2
41
0.9±0.2 N·m
0.9±0.2 N·m41±8 N·m
Driver’s air bag module removal
steps
AA"1. Driver’s air bag moduleDriver’s air bag module installation
steps
"AADPre-installation inspection
1. Driver’s air bag module
DNegative ( - ) terminal of the battery
connection
"DADPost-installation inspection
Clock spring removal steps
AA"1. Driver’s air bag module
AB"2. Steering wheel
3. Lower column cover
AC"4. Clock springClock spring installation steps
"AADPre-installation inspection
"BA4. Clock spring
3. Lower Column Cover
"CA2. Steering wheel
1. Driver’s air bag module
DNegative ( - ) terminal of the battery
connection
"DADPost-installation inspection

SRS -Air Bag Modules and Clock Spring52B-54

3 2
4
1
50±5 N·m
2
Steering wheel - driver’s air bag
module assembly removal steps
AD"1. Cover
AE"2. Steering wheel - driver’s air bag
module assemblySteering wheel - driver’s air bag
module assembly installation steps
"AADPre-installation inspection
2. Steering wheel - driver’s air bag
module assembly
1. Cover
DNegative ( - ) terminal of the battery
connection
"DADPost-installation inspection
Clock spring removal steps
AD"1. Cover
AE"2. Steering wheel - driver’s air bag
module assembly
3. Lower Column Cover
AC"4. Clock springClock spring installation steps
"AADPre-installation inspection
"BA4. Clock spring
3. Lower Column Cover
"CA2. Steering wheel - driver’s air bag
module assembly
1. Cover
DNegative ( - ) terminal of the battery
connection
"DADPost-installation inspection

SRS - Air Bag Modules and Clock Spring52B-55

1
Removal steps
DInstrument panel assembly
(Refer to GROUP 52A - Instrument
panel.)
A
F"1. Passenger’s air bag moduleInstallation steps
"AADPre-installation inspection
1. Passenger’s air bag module
DInstrument panel assembly
(Refer to GROUP 52A - Instrument
panel.)
DNegative ( - ) battery cable connection
"DADPost-installation inspection
REMOVAL SERVICE POINTS
AA"DRIVER’S AIR BAG MODULE REMOVAL
1. Remove the air bag module mounting screw (torque
screw) from the steering wheel side.
2. Spread the lock outward to remove the connector by
prying with a flat-tipped screw driver as shown in the
illustration at left.
Caution
(1) Be careful not to remove the connector forcibly.
(2) Keep the removed driver’s air bag module facing
the pad surface upward in a clean and dry place.
locked
Connector
Flat-tipped screw
driver
locked

SRS - Air Bag Modules and Clock Spring52B-56
AB"STEERING WHEEL REMOVAL
AC"CLOCK SPRING REMOVAL
Caution
Keep the removed clock spring in a clean and dry place.
AD"COVER REMOVAL
Use the special tool to insert into the notch as shown in
the illustration and remove the cover.
AE"STEERING WHEEL - DRIVER’S AIR BAG MODULE
ASSEMBLY REMOVAL
1. By sliding the A section (in the figure) of the clock spring
connector in the arrow direction, disconnect the connector.
2. Insert the hexagonal bit socket into the arrow section
in the figure. Completely loosen the bolt, and then remove
the steering wheel - driver’s air bag module assembly.
NOTE
Use a hexagonal bit socket or a hexagonal wrench having
an effective length of 75 mm or more in the hexagonal
section and the diameter of 8 mm or more.
MB990803
MB990784
A Clock spring connector
Steering wheel - driver’s air bag
module assembly
Hexagonal bit
socket