Mitsubishi Outlander (2003+). Manual — part 376
TROUBLESHOOTING
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-103
STEP 3. Connector check: SRS-ECU connector
C-114, driver's seat belt pre-tensioner connector
D-29 and intermediate connector D-31
Q: Is the check result normal?
YES :
Check the harness wires for short circuit to
power supply between SRS-ECU connector
C-114 (terminal No.29 and 30) and driver's
seat belt pre-tensioner connector D-29
(terminal No.2 and 1), and repair if
necessary. Then go to Step 4.
NO :
Repair or replace it. than go to Step 4.
STEP 4. Check whether the diagnosis code is
reset.
Q: Is diagnosis code 66 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
).
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
AC301410
Connector: D-29
AI
1
2
Harness side
connector
(front view)
AC301408
Connector: D-31
AE
11
1
4
3
10
16
13
12
5 6
2
14
8
15
9
7
TROUBLESHOOTING
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-104
Code No.66: Driver's seat belt pre-tensioner (squib) system (short-circuited to the power supply)
<R.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
CONNECTOR
LOCK
SWITCH
NOTE
CONNECTOR
COUPLED: ON
CONNECTOR
UNCOUPLED: OFF
CONNECTOR
LOCK
SWITCH
MICROCOMPUTER
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
SRS-ECU
SEAT BELT
PRE-TENSIONER
(RH)
AIR BAG
DRIVE CIRCUIT
Driver's Seat Belt Pre-Tensioner (Squib)
TROUBLESHOOTING
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-105
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-43. 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-43
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-43. 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.
AC308785
AI
Connector: D-43
D-43 (B)
Harness side
connector
(front view)
AC300147AF
Flat-tip screw
driver
Locking button
D-43 Passenger's
seat belt
pre-tensioner
connector
D-43 Harness side connector
MB991884
MB991885
AC300975AE
MB991865
(Dummy resistor : 3
Ω)
MB991884
(Resistor
harness)
D-43 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)
TROUBLESHOOTING
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-106
STEP 3. Connector check: SRS-ECU connector
C-114 and driver's seat belt pre-tensioner
connector D-43
Q: Is the check result normal?
YES :
Check the harness wires for short circuit to
power supply between SRS-ECU connector
C-114 (terminal No.29 and 30) and driver's
seat belt pre-tensioner connector D-43
(terminal No.2 and 1), and repair if
necessary. Then go to Step 4.
NO :
Repair or replace it. than go to Step 4.
STEP 4. Check whether the diagnosis code is
reset.
Q: Is diagnosis code 66 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
).
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
AC308785
AI
Connector: D-43
D-43 (B)
Harness side
connector
(front view)
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