Mitsubishi L200. Manual — part 584
SERVICE PRECAUTIONS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-7
<Vehicle with side-airbag and curtain air bag>
SRS-ECU terminal No.
Destination of harness
Remedy
1, 2
Floor wiring harness
→ Instrument
panel wiring harness
→ roof wiring
harness
→ curtain air bag module (LH)
Correct or replace each wiring harness.
3, 4
Floor wiring harness
→ side-airbag
module (LH)
Correct or replace the floor wiring
harness.
5, 6
Floor wiring harness
→ Seat belt pre-
tensioner (passenger’s side)
15, 16
Floor wiring harness
→ side impact
sensor (LH)
21, 22
Instrument panel wiring harness
→
Passenger's air bag cut off switch
→
Passenger's (front) air bag module
Correct or replace the instrument panel
wiring harness.
27, 28
Instrument panel wiring harness
→
Clock spring
→ Driver's air bag module
Correct or replace instrument panel
wiring harness. Replace the clock
spring.
29, 30
Instrument panel wiring harness
→
Front wiring harness
→ Front impact
sensor (LH)
Correct or replace each wiring harness.
35, 36
Instrument panel wiring harness
→
Front wiring harness
→ Front impact
sensor (RH)
37
Instrument panel wiring harness
→
Junction block (fuse No.15)
Correct or replace the instrument panel
wiring harness.
38
Instrument panel wiring harness
→
Diagnosis connector
39
Instrument panel wiring harness
→
SRS warning lamp
41
Instrument panel wiring harness
→
Earth
43
Instrument panel wiring harness
→
Junction block (fuse No.21)
51, 52
Floor wiring harness
→ Seat belt pre-
tensioner (driver’s side)
Correct or replace the floor wiring
harness.
53, 54
Floor wiring harness
→ side-airbag
module (RH)
55, 56
Floor wiring harness
→ Instrument
panel wiring harness
→ roof wiring
harness
→ curtain air bag module (RH)
Correct or replace each wiring harness.
61, 62
Floor wiring harness
→ side impact
sensor (RH)
Correct or replace the floor wiring
harness.
AC300580AB
Insulating tape
Battery
Battery cable
SERVICE PRECAUTIONS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-8
DANGER
After disconnecting the battery cable, wait 60
seconds or more before proceeding with the
following work. In addition, insulate the neg-
ative battery terminal with a tape. The con-
denser inside the SRS-ECU is designed to
retain enough voltage to deploy the air bag
SERVICE PRECAUTIONS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-9
for a short time even after the battery has
been disconnected, so serious injury may
result from unintended air bag deployment if
work is done on the SRS system immediately
after the battery cables are disconnected.
CAUTION
The SRS components and seat belt with pre-ten-
sioner should not be subjected to heat, so
remove the SRS-ECU, driver’s and passenger’s
(front) air bag modules, clock spring, front
impact sensor, curtain air bag module, seat belt
with pre-tensioner before drying or baking the
vehicle after painting.
• SRS-ECU, air bag modules, clock spring and
impact sensors: 93
° C or more
• Seat belt with pre-tensioner: 90°C or more
CAUTION
Whenever you finish servicing the SRS, always
erase the diagnosis code and check warning
lamp operation to make sure that the system
functions properly.
AC801105
SRS-harness connector
SRS-ECU harness connector (rear side)
MB992006
<Vehicles without side-airbag and curtain air bag>
<Vehicles with side-airbag and curtain air bag>
AC
CAUTION
If checks are carried out by using the SRS-ECU
harness connector, observe the following proce-
dures: Insert the special tool extra fine probe
(MB992006) into connector from harness side
(rear side), and connect the tester to this probe. If
any tool than special tool is used, damage to the
harness and other components will result. Never
insert the probe directly to the terminals from the
front of the connector. The terminals are plated
to increase their conductivity, so that if they are
touched directly by the probe, the plating may
break, which will cause drops in reliability.
SPECIAL TOOLS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-10
SPECIAL TOOLS
M1524000701683
Tool
No.
Name
Use
MB990784
MB990784
Ornament remover
Removal of cover.
MB990803
MB990803
Steering wheel puller
Steering wheel disconnection
MB991910
MB991826
MB991955
MB991911
MB991824
MB991827
MB991825
A
B
C
D
E
F
DO NOT USE
MB991955
A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991825
F: MB991826
M.U.T.-III sub-assembly
A: Vehicle
communication
interface (V. C. I.)
B: M.U.T.-III USB cable
C: M.U.T.-III main
harness A (Vehicles
with CAN
communication
system)
D: M.U.T.-III main
harness B (Vehicles
without CAN
communication
system)
E: M.U.T.-III measure
adapter
F: M.U.T.-III trigger
harness
CAUTION
For vehicles with CAN
communication, use M.U.T.-III
main harness A to send
simulated vehicle speed. If you
connect M.U.T.-III main harness
B instead, the CAN
communication does not
function correctly.
Checking diagnosis code
MB991884
MB991884
Resistor harness (For
pre-tensioner)
Seat belt pre-tensioner and
curtain air bag circuit check
MB991865
MB991865
Dummy resistor
SRS air bag and seat belt pre-
tensioner circuit check
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