Mitsubishi Galant 9G. Manual — part 1484
SPECIAL TOOLS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-346
SPECIAL TOOLS
M1524000700453
TOOL
TOOL NUMBER AND
NAME
SUPERSESSION
APPLICATION
MB990803
Steering wheel puller
General service tool
Steering wheel removal
MB991958
A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991914
F: MB991825
G: MB991826
Scan tool (MUT-III sub
assembly)
A: Vehicle
communication
interface (V. C. I.)
B: MUT-III USB cable
C: MUT-III main harness
A (Vehicles with CAN
communication
system)
D: MUT-III main harness
B (Vehicles without
CAN communication
system)
E: MUT-III main harness
C (for Daimler Chrysler
models only)
F: MUT-III measurement
adapter
G: MUT-III trigger
harness
MB991824-KIT
NOTE: G: MB991826
MUT-III Trigger
Harness is not
necessary when
pushing V.C.I. ENTER
key.
Checking diagnostic trouble code
CAUTION
For vehicles with CAN
communication, use MUT-III
main harness A to send
simulated vehicle speed. If you
connect MUT-III main harness
B instead, the CAN
communication does not
function correctly.
MB991865
Dummy resistor
SRS air bag and seat belt with
pre-tensioner circuit check
MB991866
Resistor harness
SRS air bag circuit check
MB990803AB
MB991910
MB991826
MB991958
MB991911
MB991914
MB991824
MB991827
MB991825
DO NOT USE
A
B
C
D
E
F
G
DO NOT USE
MB991865
MB991866
TEST EQUIPMENT
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-347
TEST EQUIPMENT
M1524000800256
SRS MAINTENANCE
M1524003900296
The SRS must be inspected by an authorized dealer up to 10
years after the date of vehicle registration. (Refer to GROUP
00, Maintenance Service
− SRS Maintenance ).
MB991884
Resistor harness (For
Pre-tensioner)
Seat belt with pre-tensioner
circuit check
MB991885
Pretensioner adapter
harness
• Deployment of seat belt with
pre-tensioner inside the
vehicle
• Deployment of seat belt with
pre-tensioner outside the
vehicle
MB991223
A: MB991219
B: MB991220
C: MB991221
D: MB991222
Harness set
A: Test harness
B: LED harness
C: LED harness adapter
D: Probe
General service tools
Checking the continuity and
measuring the voltage at the
SRS-ECU harness connector
TOOL
TOOL NUMBER AND
NAME
SUPERSESSION
APPLICATION
MB991884
MB991885
MB991223
A
D
C
B
AG
TOOL
NAME
USE
Digital multi-meter
Use a multi-meter for which the maximum
test current is 2 mA or less at the minimum
range of resistance measurement
Checking the SRS electrical circuitry with
SRS check harness
AC000019AB
POST-COLLISION DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-348
POST-COLLISION DIAGNOSIS
M1524001100852
To inspect and service the SRS after a collision (whether or not
the air bags have deployed), perform the following steps.
SRS-ECU MEMORY CHECK
Required Special Tool:
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main Harness A (Vehicles with CAN
communication system)
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
1. Connect scan tool MB991958 to the data link connector
(16-pin).
2. Read (and write down) all displayed diagnostic trouble
codes (Refer to
NOTE: If the battery power supply has been disconnected or
disrupted by the collision, scan tool MB991958 cannot com-
municate with the SRS-ECU. Check the battery, then check
and, if necessary, repair the front wiring harness and the
instrument panel wiring harness before proceeding.
3. Read the data list (fault duration and how many times
memories are erased), using scan tool MB991958.
Data list
4. Erase the diagnostic trouble codes, and then turn the
ignition switch to the LOCK (OFF) position.
5. Wait for at least one second, and then turn the ignition
switch to the ON position again.
6. After waiting 15 seconds or more, note all displayed
diagnostic trouble codes (Refer to
AC305412
AB
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
NO.
DATA LIST ITEM
APPLICABILITY
01
Failure continuation time 1
Maximum time to be stored: 9,999 minutes
(approximately seven days)
02
Failure continuation time 2
10
Elimination times
Maximum time to be stored: 255
POST-COLLISION DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-349
REPAIR PROCEDURE
.
WHEN FRONT AIR BAGS DEPLOY IN A COLLI-
SION.
1. Replace the following parts with new ones:
• SRS-ECU (Refer to
• Air bag modules (Refer to
• Seat belt with pre-tensioner (Refer to
• Front seat asembly <Passenger’s side> (Refer to GROUP
52A, Front Seat Assembly
• Front impact sensors (Refer to
• Instrument panel (Refer to GROUP 52A, Instrument Panel
Assembly
2. Check the following parts and replace if there are any
malfunctions:
• Clock spring (Refer to
• Seat slide sensor (Refer to
• Seat belt switch (Refer to GROUP 52A, Front Seat Assem-
bly
• Steering wheel, steering column shaft assembly
(1) Check the wiring harness (built into the steering wheel)
and connectors for damage, and terminals for
deformation.
(2) Install the air bag module to check fit and 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 37, On-Vehicle Service
−
Steering Column Shaft Assembly Shock Absorbing
Mechanism Check ).
3. Check the wiring harnesses for binding, the connectors for
damage, poor connections, and the terminals for
deformation (Refer to
).
.
WHEN SIDE AIR BAGS DEPLOY IN A COLLISION.
1. Replace the following parts with new ones:
• SRS-ECU (Refer to
• Side impact sensors (Refer to
).
• Front seat assembly (Refer to GROUP 52A, Front Seat
Assembly
2. Check the wiring harnesses for binding, the connectors for
damage, poor connections, and the terminals for
deformation (Refer to
).
.
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