Mitsubishi Outlander (2013+). Manual - part 616

 

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Mitsubishi Outlander (2013+). Manual - part 616

 

 

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-115

YES : 

Replace the SRS-ECU. After replacing the 

ECU, carry out the CAN bus diagnostics. 
Then go to Step 5.

NO : 

A poor connection, open circuit or other 
intermittent malfunction in the CAN bus line 
between the SRS-ECU and the 
ETACS-ECU. (Refer to GROUP 00 

− How 

to Use Troubleshooting/Inspection Service 
Points - How to Cope with Intermittent 
Malfunction .)

STEP 5. Check whether the diagnosis code is 
reset.
Recheck if the diagnosis code is set to the 
SRS-ECU.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF) 

position to "ON" position.

(3) On completion, check that the diagnosis code is 

reset.

Q: Is the diagnosis code set?

YES : 

Return to Step 1.

NO : 

The procedure is complete.

Code No. U1195: Coding not completed

TROUBLE JUDGEMENT

If the SRS-ECU is in the initial state or the local cod-
ing is incomplete, the SRS-ECU sets diagnosis code 
No. U1195.

PROBABLE CAUSES

• Malfunction of SRS-ECU

DIAGNOSIS PROCEDURE

Replace the SRS-ECU. 

Code No. U1199: Chassis No. not programmed

CAUTION

• When diagnosis code No. U1199 is set, be 

sure to diagnose the CAN bus line.

• When replacing the ECU, always check that 

the communication circuit is normal.

FUNCTION

SRS-ECU sets diagnosis code No. U1199 when no 
Chassis No. is recorded in it.

TROUBLE JUDGEMENT

SRS-ECU determines that the abnormality is present 
when no Chassis No. is recorded in it.

TROUBLESHOOTING HINTS

• Chassis No. not programmed

• Malfunction of the SRS-ECU

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnostics

2. Register the Chassis No. and recheck the 

diagnosis code.

Code No. U119A: Chassis No. mismatch

CAUTION

• If the diagnosis code No. U1109 is set, diag-

nose the CAN bus lines.

• When replacing the ECU, always check that 

the SRS circuit is normal.

FUNCTION

If the registered chassis number is different from that 
transmitted on the CAN-C-Mid bus lines, the 
SRS-ECU will set diagnosis code No. U119A.

TROUBLE JUDGEMENT

If the chassis number stored in the SRS-ECU does 
not comply with that transmitted in CAN-C-Mid bus 
lines, the SRS-ECU determines that a problem has 
occurred.

TROUBLESHOOTING HINTS

• Chassis number not written

• Malfunction of CAN bus line

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-116

• Malfunction of Engine-ECU

• Malfunction of SRS-ECU

DIAGNOSIS PROCEDURE

1. M.U.T.-III CAN bus diagnostics

2. Check the M.U.T.-III Diagnosis code for other 

systems

3. Check whether the diagnosis code is reset.

CHECK CHART FOR TROUBLE SYMPTOMS

M1524003401498

Inspection 
procedure No.

Trouble symptom

Reference page

1

Communication between M.U.T.-III and SRS-ECU cannot be 
established.

P.52B-116

2

Power supply circuit system

P.52B-116

3

SRS warning lamp does not illuminate.

P.52B-118

4

SRS warning lamp does not turn go out.

P.52B-118

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Communication between M.U.T.-III and SRS-ECU cannot be established.

PROBABLE CAUSES

• Damaged wiring harness and connectors

• Malfunction of SRS-ECU

DIAGNOSIS PROCEDURE

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

Q: Is the check result normal?

YES : 

Check and repair the power supply circuit 

system (Refer to 

P.52B-116

). 

NO : 

Repair the CAN bus lines (Refer to GROUP 
54C 

− Troubleshooting-). 

INSPECTION PROCEDURE 2: Power supply circuit system

OPERATION

To SRS-ECU, the power is supplied from two inde-
pendent circuits (fuse No. 2) via IG1 relay of 
ETACS-ECU.
If the power is not supplied to SRS-ECU, the com-
munication between M.U.T.-III and SRS-ECU cannot 
be established.

PROBABLE CAUSES

• Damaged wiring harness and connectors

• Battery failure

• Malfunction of the charging system

• Malfunction of SRS-ECU

DIAGNOSIS PROCEDURE

STEP 1. Fuse Nos. 2 check.

Q: Is the fuse in good condition?

YES : 

Go to Step 3.

NO : 

Go to Step 2

STEP 2. Fuse open circuit check
(1) Replace the fuse.
(2) Turn the ignition switch to the "ON" position, wait 

for at least one minute, and then turn the switch 
OFF.

(3) Check the fuse.

Q: Is the fuse in good condition?

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-117

YES : 

Go to Step 3.

NO : 

Repair the wiring harness IG1A line 
between the ETACS-ECU connector and 
the SRS-ECU connector, and replace the 
fuse.

STEP 3. Resistance measurement at the 
SRS-ECU connector.

AC905015

A

AC

Lock lever

(1) 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.

(2) Take the measurements below at the SRS-ECU 

wiring harness side connectors. 

• Continuity GND2 line between SRS-ECU wir-

ing harness side connector and body earth

OK: Continuity (less than 2 

Ω)

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the wiring harness GND2 line 
between the SRS-ECU connector and the 
earth.

STEP 4. Voltage 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.

(3) Connect the negative battery terminal.
(4) Ignition switch: ON
(5) Take the measurements below at the SRS-ECU 

harness side connector. 

• Voltage between IG1A line and body earth

OK: 9 V or more

(6) Disconnect the negative battery terminal.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Go to Step 5.

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.

(2) Disconnect the ETACS-ECU connector.

AC905015

A

AC

Lock lever

(3) 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.

• Continuity IG1A line between ETACS-ECU 

connector and SRS-ECU connector

OK: Continuity (less than 2 

Ω)

Q: Is the check result normal?

YES : 

Replace the ETACS-ECU (Refer to GROUP 

54A 

− ETACS-ECU ).

NO : 

Repair the wiring harness IG1A line 
between the ETACS-ECU connector and 
the SRS-ECU connector.

STEP 6. Trouble symptom check.

Q: Is the communication between M.U.T.-III and 

SRS-ECU possible?
YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunction ).

NO : 

Replace SRS-ECU (Refer to 

P.52B-129

).

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-118

INSPECTION PROCEDURE 3: SRS warning lamp does not illuminate.

OPERATION

• The SRS warning lamp illuminates when the igni-

tion switch is turned to the "ON" position and 
goes out after approximately 6 to 8 seconds if 
there is not a malfunction in the SRS system.

• SRS-ECU sends the SRS warning lamp signal to 

the combination meter via the CAN communica-
tion.

• As a cause, the failure of CAN bus line, combina-

tion meter, or SRS-ECU is suspected.

PROBABLE CAUSES

• Damaged wiring harness and connectors

• Combination meter malfunction

• 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 lines (refer to Group 
54C 

− Troubleshooting ). 

STEP 2. M.U.T.-III actuator test
Use M.U.T.-III to perform the SRS-ECU actuator 
tests.
Item No. 01: SRS warning lamp

Q: Does the SRS warning lamp turn on and off 

normally?

YES : 

Go to Step 5.

NO : 

Go to Step 3.

STEP 3. M.U.T.-III actuator test
Use M.U.T.-III to perform the combination meter 
actuator tests.
Item No. 07: Indicator1

Q: Does the SRS warning lamp turn on and off 

normally?
YES : 

Replace SRS-ECU (Refer to 

P.52B-129

).

NO : 

Go to Step 4.

STEP 4. Check of short to power supply, short to 
earth, and open circuit in IG1 line between 
ETACS-ECU connector and combination meter 
connector

Q: Is the check result normal?

YES : 

Replace the combination meter (Refer to 

GROUP 54A 

− Combination Meter ).

NO : 

Repair the wiring harness.

STEP 5. Recheck of the SRS warning lamp
(1) Connect the negative battery terminal.
(2) Ignition switch: ON

Q: Does the lamp illuminate?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunction ).

NO : 

Return to Step 1.

Inspection Procedure 4: The SRS warning lamp does not go out.

OPERATION

• The SRS warning lamp illuminates when the igni-

tion switch is turned to the "ON" position and 
goes out after approximately 6 to 8 seconds if 
there is not a malfunction in the SRS system.

• SRS-ECU sends the SRS warning lamp signal to 

the combination meter via the CAN communica-
tion.

• As a cause, the failure of CAN bus line, combina-

tion meter, or SRS-ECU is suspected.

PROBABLE CAUSES

• Damaged wiring harness and connectors

• Combination meter malfunction

• Malfunction of SRS-ECU

DIAGNOSTIC 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 lines (refer to Group 
54C 

− Troubleshooting ). 

STEP 2. Recheck of the SRS warning lamp
(1) Connect the negative battery terminal.

 

 

 

 

 

 

 

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