Mitsubishi Outlander (2003+). Manual - part 372

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-87

STEP 3. Check the harness for short circuit to
earth between SRS-ECU connector C-115
(terminal No.8) and combination meter connector
C-05 (terminal No.11).

Q: Is the check result normal?

YES :

Erase the diagnosis code memory, and

check the diagnosis code. If diagnosis code
43 sets, replace the SRS-ECU (Refer to

P.52B-178

). Then go to Step 4 .

NO :

Repair the harness wire between SRS-ECU
connector C-115 (terminal No.8) and
combination meter connector C-05 (terminal
No.11). Then go to Step 4.

STEP 4. Check whether the diagnosis code is
reset.

Q: Is diagnosis code 43 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

P.00-6

AC301661AC

Harness side
connector
(front view)

Connector: C-115

SRS-ECU

C-115 (Y)

Center lower
panel

1110 9

1413

AC301395AR

10 9

7 6

1514

4 3

C-05(L)

Connector: C-05 <LHD>

Harness side
(front view)

AC308769

10 9

7 6

1514

4 3

C-05(L)

Connector: C-05 <RHD>

Harness side

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-88

Code No.44: SRS warning lamp circuit malfunction

CIRCUIT OPERATION

•

Power for the SRS warning lamp is supplied from
the ignition switch (IG1).

•

The SRS warning lamp illuminates when the
ignition switch is turned to the "ON" position and
goes out after approximately 7 seconds if there is
not a malfunction in the SRS system.

DIAGNOSIS CODE SET CONDITIONS
This diagnosis code is set under one of the following
cases while the SRS-ECU is monitoring the warning
lamp drive circuit:

•

When a short circuit occurs in the warning
lamp drive circuit.

•

When a malfunction is detected in the output
transistor inside the SRS-ECU.

However, if the vehicle condition returns to normal,
diagnosis code 44 will be automatically erased, and
the SRS warning lamp will go out.

PROBABLE CAUSES

•

Damaged wiring harnesses or connectors

•

Malfunction of the SRS-ECU

DIAGNOSIS PROCEDURE
Check the SRS warning lamp drive circuit system.
Refer to

P.52B-10

NOTE

CONNECTOR
COUPLED: ON
CONNECTOR
UNCOUPLED: OFF

IGNITION
SWITCH (IG1)

SRS-ECU

MICROCOMPUTER

CONNECTOR
LOCK
SWITCH

WARNING LAMP
DRIVE CIRCUIT

COMBINATION
METER

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

AC301799AB

SRS Warning Lamp Drive Circuit

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-89

Code No.61: Driver's air bag module (squib) system (short-circuited to the power supply)

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 SRS
air bag will inflate.

•

The ignition signal is input to the air bag module
via the clock spring to inflate the air bag.

DIAGNOSIS CODE SET CONDITIONS
This diagnosis code is set if the driver’s air bag squib
wire(s) are short-circuited to the power supply.
However, if no diagnosis code resets, the SRS
warning lamp will be switched off (diagnosis code will
be retained).

PROBABLE CAUSES

•

Malfunction of the clock spring

•

Damaged harness wires and connectors

•

Short to the power supply in the driver's air bag
module (squib) harness

•

Malfunction of the SRS-ECU

CLOCK
SPRING

AIR BAG MODULE
(SQUIB)
(DRIVER'S SIDE)

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

AC301790

Driver's Air Bag Module (Squib) Circuit

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-90

DIAGNOSIS PROCEDURE

STEP 1. Check the driver's air bag module.
(Check whether the diagnosis code is reset.)
(1) Disconnect the negative battery terminal.

(2) By sliding the A section (in the figure) of air bag

module connector C-306 in arrow direction,
disconnect the connector.

(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) Insert special tool (MB991866) into clock spring

side air bag module connector C-306 by
backprobing.

(5) Connect the negative battery terminal.

(6) Erase the diagnosis code memory, and check the

diagnosis code.

Q: Is diagnosis code 61 out put?

YES :

Go to Step 2.

NO :

Replace the driver’s air bag module (Refer
to

P.52B-179

). Then go to Step 4.

STEP 2. Check the clock spring. (Check whether
the diagnosis code is reset.)
(1) Disconnect the negative battery terminal.

(2) Disconnect the clock spring connector C-307.
(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) Insert special tool (MB991866) into clock spring

harness side connector C-307 (terminal No.3 and
4) by backprobing.

(5) Connect the negative battery terminal.
(6) Erase the diagnosis code memory, and check the

diagnosis code.

Q: Is diagnosis code 61 set?

YES :

Go to Step 3.

NO :

Replace the clock spring (Refer to

P.52B-179

). Then go to Step 4.

AC300156AB

C-306 Air bag
module connector

Steering wheel

AC303006AC

MB991865
(Dummy resistor : 3

Ω)

MB991866
(Resistor harness)

C-306 Air bag
module
connector

AC303587AC

1 2

MB991865 (Dummy
resistor : 3

Ω)

MB991866
(Resistor harness)

C-307 Clock spring
connector

(Rear view)

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