Mitsubishi Outlander (2003+). Manual — part 375
TROUBLESHOOTING
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-99
DIAGNOSIS PROCEDURE
STEP 1. Check the passenger's air bag module.
(Check whether the diagnosis code is reset.)
(1) Disconnect the negative battery terminal.
(2) Unclip passenger’s air bag module connector
C-09.
(3) Connect special tool dummy resistor (MB991865)
to special tool resistor harness (MB991866).
CAUTION
Do not insert a test probe into the terminal from
its front side directly as the connector contact
pressure may be weakened.
(4) Disconnect the passenger's air bag module
connector C-09, and insert special tool
(MB991866) into the harness side connector by
backprobing.
(5) Connect the negative battery terminal.
(6) Erase the diagnosis code memory, and check the
diagnosis code.
Q: Is diagnosis code 65 set?
YES :
Go to Step 2.
NO :
Replace the passenger's air bag module
(Refer to
). Then go to Step 3.
STEP 2. Measure the resistance at the SRS-ECU
connector C-115. (Check whether the diagnosis
code is reset.)
(1) Disconnect SRS-ECU connector C-115.
CAUTION
To prevents the air bag from deploying
unintentionally, disconnect the passenger’s air
bag module connector C-09 to short the squib
circuit.
AC301718
Connector: C-09 <LHD>
AD
C-09 (R)
Glove box striker
2 1
Harness side
connector (front view)
AC309254 AB
Connector: C-09 <RHD>
C-09 (R)
Glove box striker
2 1
Harness side
connector (front view)
AC300956AB
MB991865 (Dummy
resistor : 3
Ω)
C-09 Harness side
connector
C-09 Passenger's
air bag module connector
MB991866
(Resistor harness)
AC301661AC
Harness side
connector
(front view)
Connector: C-115
SRS-ECU
C-115 (Y)
Center lower
panel
1110 9
1
2
3
1413
12
4
5
6
16
8
15
7
17
18
19
20
AC301718
Connector: C-09 <LHD>
AD
C-09 (R)
Glove box striker
2 1
Harness side
connector (front view)
AC309254 AB
Connector: C-09 <RHD>
C-09 (R)
Glove box striker
2 1
Harness side
connector (front view)
TROUBLESHOOTING
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-100
(2) Unclip passenger’s air bag module connector
C-09.
CAUTION
Do not insert a test probe into the terminal from
its front side directly as the connector contact
pressure may be weakened.
(3) Measure the resistance between C-115 harness
side connector terminals 9, 10 and body earth.
OK: Open circuit
Q: Is the check result normal.
YES :
Erase the diagnosis code memory, and
check the diagnosis code. If diagnosis code
65 sets, replace the SRS-ECU (Refer to
NO :
Repair the harness wires between
SRS-ECU connector C-115 (terminal No.9
and 10) and passenger's air bag module
connector C-09 (terminal No.1 and 2). Then
go to Step 3.
STEP 3. Check whether the diagnosis code is
reset.
Q: Is diagnosis code 65 set?
YES :
Return to Step 1.
NO :
The procedure is complete (If no
malfunctions are found in all steps, an
intermittent malfunction is suspected. Refer
to GROUP 00
−
How to Use
Troubleshooting/Inspection Service Points
).
13 14 15 16 17 18 19 20
5 6 7 8 9 10 11 12
1 2
3 4
AC301035AB
C-115 Harness side connector (rear view)
TROUBLESHOOTING
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-101
Code No.66: Driver's seat belt pre-tensioner (squib) system (short-circuited to the power supply)
<L.H. drive vehicles>
OPERATION
The SRS-ECU judges how severe a collision is by
detecting signals from the front impact sensors and
the front air bag analog G-sensor. If the impact is
over a predetermined level, the SRS-ECU outputs an
ignition signal. At this time, if the front air bag safing
G-sensor is on, the pre-tensioner will deploy.
DIAGNOSIS CODE SET CONDITIONS
This diagnosis code is set if the driver's seat belt
pre-tensioner wire(s) are short-circuited to the power
supply.
PROBABLE CAUSES
•
Damaged wiring harnesses or connectors
•
Short to the power supply in the driver's seat belt
pre-tensioner (squib) harness
•
Malfunction of the SRS-ECU
SEAT BELT
PRETENSIONER
(LH)
CONNECTOR
LOCK
SWITCH
AIR BAG
DRIVE CIRCUIT
NOTE
CONNECTOR
COUPLED: ON
CONNECTOR
UNCOUPLED: OFF
SRS-ECU
MICROCOMPUTER
CONNECTOR
LOCK
SWITCH
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
AC301789AB
Driver's Seat Belt Pre-Tensioner (Squib)
TROUBLESHOOTING
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-102
DIAGNOSIS PROCEDURE
STEP 1. Check the driver's seat belt
pre-tensioner. (Check whether the diagnosis
code is reset.)
(1) Disconnect the negative battery terminal.
(2) Disconnect driver's seat belt pre-tensioner
connector D-29. Use a flat-tipped screwdriver to
pull out the locking button at the harness side
connector, and then disconnect the connector.
(3) Connect special tool dummy resistor (MB991865)
to special tool resistor harness (MB991884).
(4) Connect special tool (MB991884) to the D-29
harness side connector.
(5) Connect the negative battery terminal.
(6) Erase diagnosis code memory, and check the
diagnosis code.
Q: Is diagnosis code 66 set?
YES :
Go to Step 2.
NO :
Replace the driver's seat belt pre-tensioner
(Refer to
). Then go to Step 4.
STEP 2. Measure the voltage at the SRS-ECU
connector C-114.
(1) Disconnect SRS-ECU connector C-114.
(2) Disconnect driver's seat belt pre-tensioner
connector D-29. Use a flat-tipped screwdriver to
pull out the locking button at the harness side
connector, and then disconnect the connector.
(3) Turn the ignition switch to the "ON" position.
CAUTION
Do not insert a test probe into the terminal from
its front side directly as the connector contact
pressure may be weakened.
(4) Measure the voltage between C-114 harness
side connector terminals 29, 30 and body earth.
OK: 0 V
Q: Is the measured voltage within the specified
range?
YES :
Erase the diagnosis code memory, and
check the diagnosis code. If diagnosis code
65 sets, replace the SRS-ECU (Refer to
NO :
Go to Step 3.
AC301410
Connector: D-29
AI
1
2
Harness side
connector
(front view)
AC300147AE
Flat-tip screw
driver
Locking button
D-29 Driver's seat
belt pre-tensioner
connector
D-29 Harness side connector
MB991884
MB991885
AC300975AD
MB991865
(Dummy resistor : 3
Ω)
MB991884
(Resistor
harness)
D-29 Harness side connector
AC301661
Connector: C-114
AE
SRS-ECU
C-114 (Y)
Center lower
panel
Harness side
connector
(front view)
40
23
24
41
32
42
33
31
29
38
39
30
37
28
21
22
35
26
36
27
34
25
34 35 36 37 38 39 40 41 42
25 26 27 28 29 30 31 32 33
21 22
23 24
AC301037AB
C-114 Harness side
connector (rear view)
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