Mitsubishi Outlander (2013+). Manual - part 595

 

  Index      Mitsubishi     Mitsubishi Outlander - service repair manual 2013 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  593  594  595  596   ..

 

 

Mitsubishi Outlander (2013+). Manual - part 595

 

 

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-31

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.
Use M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus line (Refer to GROUP 
54C 

− Troubleshooting ).

STEP 2. Check whether the diagnosis code is 
reset.
(1) Connect the negative battery terminal.
(2) After erasing the diagnosis code memory, check 

the diagnosis code again.

(3) Disconnect the negative battery terminal.

Q: Is the diagnosis code No. B1410 set?

YES : 

Go to Step 3.

NO : 

Intermittent malfunction (Refer to GROUP 
00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunction ).

STEP 3. Connector check: passenger's (front) air 
bag module, SRS-ECU.
(1) Check that the negative battery terminal is 

disconnected. If the negative battery terminal is 
connected, disconnect it.

AC905015

A

AC

Lock lever

(2) While pushing the part "A" indicated in the figure 

of the harness side connector, turn the lock lever 
to the direction of the arrow to release the lock 
lever. After disconnecting the SRS-ECU 

connector, connect it again.

ACB04307AB

Passenger's air bag module 

harness side connector

Locking button

Flat-tipped
screwdriver

(3) Use the flat-tipped screwdriver to pull out the 

locking button of wiring harness side connector, 
and release the lock, connect the connector 
again.

(4) Connect the negative battery terminal.
(5) After erasing the diagnosis code memory, check 

the diagnosis code again.

(6) Disconnect the negative battery terminal.

Q: Is the diagnosis code No. B1410 set?

YES : 

Go to Step 4.

NO : 

Replace the connector concerned.

STEP 4. Diagnosis check by dummy resistor 
connection.
(1) Check that the negative battery terminal is 

disconnected. If the negative battery terminal is 
connected, disconnect it.

ACB04307AB

Passenger's air bag module 

harness side connector

Locking button

Flat-tipped
screwdriver

(2) Use the flat-tipped screwdriver to pull out the 

locking button of wiring harness side connector, 

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-32

and release the lock.

AC306760BA

MB991865
(Dummy resistor: 3    )

MB991866 
(Resistor harness)

Harness 

side connector

Passenger's (front) 

air bag module connector

(3) Connect special tool dummy resistor (MB991865) 

to special tool resistor harness (MB991866).

CAUTION

Do not insert a probe directly into the terminal 
from the connector front side as the connector 
contact pressure may be weakened.
(4) Insert the resistor harness probe from the back of 

passenger’s (front) air bag module harness side 
connector ASQ+, ASQ- line.

(5) Connect the negative battery terminal.

CAUTION

Do not insert a probe directly into the terminal 
from the connector front side as the connector 
contact pressure may be weakened.
(6) After erasing the diagnosis code memory, check 

the diagnosis code again.

(7) Disconnect the negative battery terminal.

Q: Is the diagnosis code No. B1410 set?

YES : 

Go to Step 5.

NO : 

Replace the passenger's (front) air bag 
module (Refer to 

P.52B-136

).

STEP 5. Resistance measurement at the 
SRS-ECU connector.
(1) Check that the negative battery terminal is 

disconnected. If the negative battery terminal is 
connected, disconnect it.

AC905015

A

AC

Lock lever

(2) While pushing the part "A" indicated in the figure 

of the harness side connector, turn the lock lever 
to the direction of the arrow to release the lock 

lever, and disconnect the SRS-ECU connector.

DANGER

To release the connector short spring in the 
following operations, disconnect this har-
ness side connector, and keep the squib cir-
cuit shorted.

ACB04307AB

Passenger's air bag module 

harness side connector

Locking button

Flat-tipped
screwdriver

(3) Use the flat-tipped screwdriver to pull out the 

locking button of wiring harness side connector, 
and release the lock.

AC905150 AP

A

A

Harness side
connector (front view)

Section
A - A

Cable tie

Short spring

4 mm or more

Terminal

CAUTION

The short spring may not be released due to the 
insufficient insertion. Therefore, insert the insu-
lator for 4 mm or more.
(4) Insert an insulator (width: 3 mm, thickness: 0.5 

mm) such as cable tie between the ASQ+, ASQ- 
line, and then release the short spring.

(5) Take the measurements below at the harness 

side connector. 

• Continuity between the ASQ+, ASQ- line

OK: No continuity

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the wiring harnesses ASQ+, ASQ- 
line between the passenger's (front) air bag 
module connector and the SRS-ECU 
connector. 

STEP 6. Check whether the diagnosis code is 
reset.

Q: Is the diagnosis code No. B1410 set?

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-33

YES : 

Replace SRS-ECU (Refer to 

P.52B-129

).

NO : 

Intermittent malfunction (Refer to GROUP 
00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunction ).

Code No.B1411 Passenger's (front) air bag module (squib) system (open circuit of squib circuit)

CAUTION

• If the diagnosis code B1411 (squib) is set to 

SRS-ECU, be sure to diagnose the CAN bus 
line.

• Follow the diagnosis procedure below. If diag-

nosis code B1411 is set, check squib side cir-
cuit.

OPERATION

Only when the frontal impact exceeding the threshold 
is simultaneously detected (turned ON) by the front 
impact sensor as well as by the analogue G-sensor 
in SRS-ECU, the electric current is supplied from 
SRS-ECU to the passenger's (front) air bag module 
(squib).

TROUBLE JUDGEMENT

The code is set when the open circuit occurs to the 
SRS-ECU passenger's (front) air bag module (squib) 
circuit.

PROBABLE CAUSES

• Open circuit in the passenger's (front) air bag 

module (squib) circuit

• Poor contact of connector

• Malfunction of SRS-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.
Use M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus line (Refer to GROUP 
54C 

− Troubleshooting ).

STEP 2. M.U.T.-III diagnosis code.
(1) Connect the negative battery terminal.
(2) After erasing the diagnosis code memory, check 

the diagnosis code again.

(3) Disconnect the negative battery terminal.

Q: Is the diagnosis code No. B1411 set?

YES : 

Go to Step 3.

NO : 

Intermittent malfunction (Refer to GROUP 
00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunction ).

STEP 3. Diagnosis check by dummy resistor 
connection.
(1) Check that the negative battery terminal is 

disconnected. If the negative battery terminal is 
connected, disconnect it.

ACB04307AB

Passenger's air bag module 

harness side connector

Locking button

Flat-tipped
screwdriver

(2) Use the flat-tipped screwdriver to pull out the 

locking button of wiring harness side connector, 
and release the lock, connect the connector 
again.

AC306760BA

MB991865
(Dummy resistor: 3    )

MB991866 
(Resistor harness)

Harness 

side connector

Passenger's (front) 

air bag module connector

(3) Connect special tool dummy resistor (MB991865) 

to special tool resistor harness (MB991866).

CAUTION

Do not insert a probe directly into the passen-
ger's (front) air bag module terminal from the 
connector front side as the connector contact 
pressure may be weakened.
(4) Insert the resistor harness probe from the back of 

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-34

passenger’s (front) air bag module harness side 
connector ASQ+, ASQ- line.

(5) Connect the negative battery terminal.
(6) After erasing the diagnosis code memory, check 

the diagnosis code again.

(7) Disconnect the negative battery terminal.

Q: Is the diagnosis code No. B1411 set?

YES : 

Go to Step 4.

NO : 

Replace the passenger's (front) air bag 
module (Refer to 

P.52B-136

).

STEP 4. Resistance measurement at the 
SRS-ECU connector and the passenger's (front) 
air bag module connector.
(1) Check that the negative battery terminal is 

disconnected. If the negative battery terminal is 
connected, disconnect it.

AC905015

A

AC

Lock lever

(2) While pushing the part "A" indicated in the figure 

of the harness side connector, turn the lock lever 
to the direction of the arrow to release the lock 
lever, and disconnect the SRS-ECU connector.

DANGER

To release the connector short spring in the 
following operations, disconnect this har-
ness side connector, and keep the squib cir-
cuit shorted.

ACB04307AB

Passenger's air bag module 

harness side connector

Locking button

Flat-tipped
screwdriver

(3) Use the flat-tipped screwdriver to pull out the 

locking button of wiring harness side connector, 

and release the lock.

AC905150 AP

A

A

Harness side
connector (front view)

Section
A - A

Cable tie

Short spring

4 mm or more

Terminal

CAUTION

The short spring may not be released due to the 
insufficient insertion. Therefore, insert the insu-
lator for 4 mm or more.
(4) Insert an insulator (width: 3 mm, thickness: 0.5 

mm) such as cable tie between the ASQ+, ASQ- 
line, and then release the short spring.

CAUTION

Do not insert a probe directly into the terminal of 
passenger's (front) air bag module harness side 
connector from the connector front side as the 
connector contact pressure may be weakened.
(5) Take the measurements below at the SRS-ECU 

connector and passenger’s (front) air bag module 
connector harness side connectors.

• Continuity ASQ- line between the SRS-ECU 

connector and the passenger's (front) air bag 
module connector.

• Continuity ASQ+ line between the SRS-ECU 

connector and the passenger's (front) air bag 
module connector.

OK: Continuity (less than 2 

)

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the wiring harnesses ASQ+, ASQ- 
line between the passenger's (front) air bag 
module connector and the SRS-ECU 
connector.

STEP 5. Check whether the diagnosis code is 
reset.

Q: Is the diagnosis code No. B1411 set?

YES : 

Replace SRS-ECU (Refer to 

P.52B-129

).

NO : 

Intermittent malfunction (Refer to GROUP 
00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunction ).

 

 

 

 

 

 

 

Content   ..  593  594  595  596   ..