Mitsubishi Evolution X. Manual — part 734
SRS CONTROL UNIT (SRS-ECU)
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-383
SRS CONTROL UNIT (SRS-ECU)
REMOVAL AND INSTALLATION
M1524002101289
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.
•
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 here
.
Pre-removal Operation
• Turn the ignition switch to the "LOCK" (OFF) position.
AC709073
4
3
2
9.0 ± 1.0 N·m
80 ± 9 in-lb
9.0 ± 1.0 N·m
80 ± 9 in-lb
1
AD
Removal steps
<<A>>
1.
Negative (
−) battery cable
•
Floor console front bracket front
(Refer to GROUP 52A, Front Floor
Console Assembly
•
Instrument panel under cover
(Refer to GROUP 52A, Instrument
Lower Panel
•
Rear heater duct A (Refer to
GROUP 55, Ducts
).
2.
SRS-ECU mounting bolt (ground
bolt)
3.
SRS-ECU mounting bolt
<<B>>
4.
SRS-ECU
Installation steps
>>A<<
4.
SRS-ECU
3.
SRS-ECU mounting bolt
>>B<<
2.
SRS-ECU mounting bolt (ground
bolt)
•
Floor console front bracket front
(Refer to GROUP 52A, Front Floor
Console Assembly
•
Instrument panel under cover
(Refer to GROUP 52A, Instrument
Lower Panel
•
Rear heater duct A (Refer to
GROUP 55A, Ducts
).
1.
Negative (
−) battery cable
>>C<<
•
Post-installation inspection
SRS CONTROL UNIT (SRS-ECU)
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-384
REMOVAL SERVICE POINTS
.
<<A>> NEGATIVE (
−)BATTERY CABLE DISCON-
NECTION
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 and lead compounds. WASH HANDS AFTER
HANDLING.
Disconnect the negative (
−) battery cable from the battery and
tape the terminal to prevent accidental connection and deploy-
ment.
.
<<B>> SRS-ECU REMOVAL
While pushing the part "A" indicated in the figure of the harness
side connector, turn the lock lever to the direction of the arrow
to release the lock lever.
INSTALLATION SERVICE POINTS
.
>>A << SRS-ECU INSTALLATION
WARNING
The SRS may not activate if the SRS-ECU is not
installed properly, which could result in serious injury
or death to the vehicle's driver or front passenger.
.
ACX00583
Insulating tape
Battery cable
Battery
AF
AC506734
A
AD
Lock lever
SRS CONTROL UNIT (SRS-ECU)
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-385
>>B<< SRS-ECU MOUNTING BOLT (GROUND
BOLT) INSTALLATION
Check the head mark "E" and install the ground bolt.
.
>>C<< POST-INSTALLATION INSPECTION
1. Reconnect the negative (
−) battery cable.
2. Turn the ignition switch to the "ON" position.
3. Does the "SRS" warning light illuminate for approximately
seven seconds, and then go out?
4. If yes, the SRS system is functioning properly. If not, refer to
.
INSPECTION
M1524002200733
WARNING
If a dent, crack, deformation or rust is dis-
covered, replace the SRS-ECU with a new
one.
• Check the SRS-ECU and brackets for dents,
cracks or deformation.
• Check the SRS-ECU connector for damage, and
the terminals for deformation.
NOTE: Refer to
for other than physical damage.
AC105754
Ground bolt head mark
AD
AC709154
SRS warning light
AB
DRIVER'S AIR BAG MODULE AND CLOCK SPRING
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-386
DRIVER'S AIR BAG MODULE AND CLOCK SPRING
REMOVAL AND INSTALLATION
M1524047500108
WARNING
•
Never attempt to disassemble or repair the air bag modules or clock spring. If faulty,
replace it.
•
Do not drop the air bag modules or clock spring or allow contact with water, grease or oil.
Replace it if a dent, crack, deformation or rust is detected.
•
The air bag modules should be stored on a flat surface with the pad cover facing upward.
Do not place anything on top of it.
•
Do not expose the air bag modules to temperatures over 93
°
C (200
°
F).
•
After the air bag deployment, replace the air bag module with a new one. Also, check the
clock spring, and replace with a new part if there is an abnormality.
•
Wear gloves and safety glasses when handling air bags that have already deployed.
•
An undeployed air bag module should only be disposed of in accordance with the proce-
dures (Refer to
).
•
When removing and installing the front passenger seat, be sure to carry out accuracy
check of the occupant classification sensor after the seat has been installed in the vehicle
(On-Vehicle Service
DRIVER'S AIR BAG MODULE AND CLOCK SPRING
Pre-removal operation
• Check that the front wheels are at the
straight-ahead position.
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