Mitsubishi Montero (2002-2004). Manual — part 771
GENERAL DESCRIPTION
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52Ba-17
COMPONENT LOCATION
NOTE: The illustration above shows the front impact sensor (LH) and the side impact sensor (RH). The posi-
tion of the front impact sensor (RH) and the side impact sensor (LH) is symmetrical to this.
AC204302
SIDE IMPACT SENSOR
SRS-ECU
DATA LINK CONNECTOR
CENTER
PILLAR
SIDE IMPACT
SENSOR
SRS-ECU
AB
DATA LINK
CONNECTOR
FRONT IMPACT SENSOR
FRONT
IMPACT
SENSOR
FRONT BUMPER
SERVICE PRECAUTIONS
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52Ba-18
SERVICE PRECAUTIONS
M1524000300303
DANGER
•
In order to avoid injury to yourself or others from
accidental deployment of the air bag during servic-
ing, read and carefully follow all the precautions
and procedures described in this manual.
•
After disconnecting the battery cable, wait 60 sec-
onds or more before proceeding with the following
work. The SRS system is designed to retain
enough voltage to deploy the air bag 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 discon-
nected.
WARNING
•
Battery posts, terminals and related accessories
contain lead and lead compounds. WASH HANDS
AFTER HANDLING.
•
Do not use any electrical test equipment on or near
the SRS components, except those specified on
•
Never Attempt to Repair the Following Compo-
nents: SRS-ECU, Clock Spring, Air Bag Module,
Front Impact sensor, Side Impact Sensor, Seat Belt
with Pre-tensioner. If any of these components are
diagnosed as faulty, they should only be replaced,
in accordance with the INDIVIDUAL COMPONENT
SERVICE procedures in this manual, starting on
•
Do not attempt to repair the wiring harness con-
nectors of the SRS. If any of the connectors are
diagnosed as faulty, replace the wiring harness. If
the wires are diagnosed as faulty, replace or repair
the wiring harness according to the following
table.
ACX00583
INSULATING TAPE
BATTERY
BATTERY CABLE (–)
AC
ACX00582AB
SERVICE PRECAUTIONS
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52Ba-19
SRS-ECU TERMINAL
NO.
DESTINATION OF HARNESS
CORRECTIVE ACTION
1, 2, 3, 4
Instrument panel wiring harness
→
Front wiring harness
→ Front impact
sensor
Correct or replace each wiring harness.
7
Instrument panel wiring harness
→
Ground
Correct or replace the instrument panel
wiring harness.
8
Instrument panel wiring harness
→ SRS
warning light
Correct or replace the instrument panel
wiring harness.
9, 10
Instrument panel wiring harness
→ Air
bag module (Front passenger's side)
Correct or replace the instrument panel
wiring harness.
11, 12
Instrument panel wiring harness
→
Clock spring
→ Air bag module
(Driver's side)
Correct or replace each wiring harness.
Replace the clock spring.
13
Instrument panel wiring harness
→
Junction block (fuse No.8)
Correct or replace the instrument panel
wiring harness.
16
Instrument panel wiring harness
→Function block (fuse No.6)
Correct or replace the instrument panel
wiring harness.
20
Instrument panel wiring harness
→
Data link connector
Correct or replace the instrument panel
wiring harness.
21, 22
Side-airbag wiring harness
→ Side-
airbag module (LH)
Correct or replace the side air bag
wiring harness.
23, 24
Side-airbag wiring harness
→ Side-
airbag module (RH)
Correct or replace the side air bag
wiring harness.
27, 28
Side-airbag wiring harness
→ Floor
wiring harness
→ Seat belt pre-
tensioner (RH)
Correct or replace each wiring harness.
29, 30
Side-airbag wiring harness
→ Floor
wiring harness
→ Seat belt pre-
tensioner (LH)
Correct or replace each wiring harness.
34, 36
Side-airbag wiring harness
→ Floor
wiring harness
→ Side impact sensor
(LH)
Correct or replace each wiring harness.
40, 42
Side-airbag wiring harness
→ Floor
wiring harness
→ Side impact sensor
(RH)
Correct or replace each wiring harness.
SERVICE PRECAUTIONS
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52Ba-20
WARNING
•
Inspection of the SRS-ECU connector harness
should be carried out by the following procedure.
Insert the backprobing tool into connector from
harness side (rear side), and connect the tester to
backprobing tool. If any tool other than
backprobing tool is used, it may cause damage to
the harness and other components. Furthermore,
measurement should not be carried out by touch-
ing the backprobing tool directly against the termi-
nals from the front of the connector. The terminals
are plated to increase their conductivity, so if they
are touched directly by the backprobing tool, the
plating may break, which will decrease reliability.
•
The SRS components and seat belt with pre-ten-
sioner should not be subjected to heat, so
removed the SRS-ECU, driver’s and front passen-
ger’s air bag modules, clock spring, side-airbag
module, front impact sensor, side impact sensor,
and seat belt pre-tensioner before drying or baking
the vehicle after painting.
•
SRS-ECU, air bag module, clock spring, front
impact sensor, side impact sensor: 93
°C (200°F)
or more
•
Seat belt with pre-tensioner 90
°C (194°F) or
more
•
After servicing the SRS system, check the warning
light operation to make sure that the system func-
tions properly. (Refer to
•
Make certain that the ignition switch is "LOCK"
(OFF) position when the scan tool is connected or
disconnected.
•
If you have any questions about the SRS system,
please contact the MMSA Tech Line.
AC006195
SRS-HARNESS CONNECTOR
SRS-ECU HARNESS CONNECTOR
(REAR SIDE)
AB
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