Mitsubishi Outlander (2013+). Manual — part 669

MB992006

INTERIOR LAMP

CHASSIS ELECTRICAL

54A-161

TROUBLESHOOTING

STANDARD FLOW OF DIAGNOSTIC
TROUBLESHOOTING

M1541301500166

Refer to GROUP 00

− Contents of troubleshooting .

TROUBLE SYMPTOM CHART

M1541300200515

Trouble symptom

Inspection
Procedure No.

Reference page

The front room lamp does not illuminate normally.

1

P.54A-161

The rear room lamp does not illuminate normally.

2

P.54A-163

The luggage compartment lamp does not illuminate normally.

3

P.54A-164

The interior lamp automatic shutoff function does not work normally.

4

P.54A-165

SYMPTOM PROCEDURES

Inspection Procedure 1: The front room lamp does not illuminate normally.

CAUTION

• Before replacing the ECU, ensure that the

power supply circuit, the earth circuit and the
communication circuit are normal.

• When the ETACS-ECU of vehicles without

KOS is replaced, the encrypted code of the
ignition key needs to be registered to the
ETACS-ECU. (If the encrypted code is not reg-
istered, the engine cannot be started. Regis-
ter the encrypted code as described in
Immobilizer System

− How to Register Key ID

P.54A-33

.)

OPERATION

The ETACS-ECU illuminates and extinguishes the
front room lamp in accordance with the input signals
below.

• Ignition switch (IG1)

• Key reminder switch

• Door switches

• Front door lock actuator (driver’s side)

COMMENTS ON TROUBLE SYMPTOM

If this does not work normally, the above switch input
circuit(s), front room lamp, or ETACS-ECU may have
a problem.

PROBABLE CAUSES

• Malfunction of the key reminder switch

• Malfunction of door switch

• Malfunction of the front door lock actuator

(driver’s side)

• Malfunction of front room lamp

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Rear room lamp operation check
Check that the rear room lamp illuminates and extin-
guishes normally.

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Go to Step 2.

MB992006

Extra fine probe

Continuity check and voltage
measurement at harness wire or
connector

Tool

Number

Name

Use

INTERIOR LAMP

CHASSIS ELECTRICAL

54A-162

STEP 2. M.U.T.-III diagnosis code
Check if diagnosis code is set to the ETACS-ECU.

Q: Is the diagnosis code set?

YES :

Troubleshoot the ETACS-ECU. Refer to

P.54A-281

.

NO :

Go to Step 3.

STEP 3. M.U.T.-III data list
Use the ETACS-ECU service data to check the sig-
nals related to the operation of front room lamp.

• Turn the ignition switch to the LOCK (OFF) posi-

tion.

• Remove the ignition key from the ignition key cyl-

inder.

•

Item No.

Item name

Normal
condition

Item 228

Dr door unlock

ON

Item 254

IG voltage

1 V or less

Item 256

Dr door ajar switch

Open

Item 257

As door ajar switch

Open

Item 258

RR door ajar switch

Open

Item 259

RL door ajar switch

Open

Item 264

Handle lock switch

Key in

→ Key

out

Open each door.

OK: Normal conditions are displayed for all
the items.

Q: Is the check result normal?

Normal conditions are displayed for all the items. :

Replace the ETACS-ECU.

Normal condition is not displayed for item No. 228.
:

Troubleshoot the ETACS-ECU. Refer to
Inspection Procedure 4 "The front door lock
actuator (driver’s side) signal is not
received"

P.54A-315

.

Normal condition is not displayed for item No. 254.
:

Troubleshoot the ETACS-ECU. Refer to
Inspection Procedure 2 "The ignition switch
(IG1) signal is not received"

P.54A-313

.

Normal condition is not displayed for item No. 256.
:

Troubleshoot the ETACS-ECU. Refer to
Inspection Procedure 5 "The front door
switch (driver’s side) signal is not received"

P.54A-316

.

Normal condition is not displayed for item No. 257.
:

Troubleshoot the ETACS-ECU. Refer to
Inspection Procedure 6 "The front door
switch (passenger’s side) signal is not
received"

P.54A-317

.

Normal condition is not displayed for item No. 258.
:

Troubleshoot the ETACS-ECU. Refer to
Inspection Procedure 7 "The rear door
switch (RH) signal is not received"

P.54A-318

.

Normal condition is not displayed for item No. 259.
:

Troubleshoot the ETACS-ECU. Refer to
Inspection Procedure 8 "The rear door
switch (LH) signal is not received"

P.54A-318

.

Normal condition is not displayed for item No. 264.
:

Troubleshoot the ETACS-ECU. Refer to
Inspection Procedure 3 "Key reminder
switch signal is not received"

P.54A-314

.

STEP 4. Front room lamp bulb check
Check that the front room lamp bulb is normal.

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Replace the front room lamp bulb.

STEP 5. Check of open circuit in (LP+1, LP+2,
LP+3&LP+4) line between the front room lamp
connector and ETACS-ECU connector.

Q: Is the check result normal?

YES :

Go to Step 6.

NO :

Repair the connector(s) or wiring harness.

STEP 6. Check of open circuit in (RLP-1,
RLP-2&RLP-3) line between the front room lamp
connector and ETACS-ECU connector.

Q: Is the check result normal?

INTERIOR LAMP

CHASSIS ELECTRICAL

54A-163

YES :

Go to Step 7.

NO :

Repair the connector(s) or wiring harness.

STEP 7. Check of open circuit in earth line
between the front room lamp connector and
body earth.

Q: Is the check result normal?

YES :

Replace the front room lamp, and then go to

Step 8.

NO :

Repair the connector(s) or wiring harness.

STEP 8. Retest the system
Check that the front room lamp illuminates/extin-
guishes normally.

Q: Is the check result normal?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

NO :

Replace the ETACS-ECU.

Inspection Procedure 2: The rear room lamp does not illuminate normally.

CAUTION

• Before replacing the ECU, ensure that the

power supply circuit, the earth circuit and the
communication circuit are normal.

• When the ETACS-ECU of vehicles without

KOS is replaced, the encrypted code of the
ignition key needs to be registered to the
ETACS-ECU. (If the encrypted code is not reg-
istered, the engine cannot be started. Regis-
ter the encrypted code as described in
Immobilizer System

− How to Register Key ID

P.54A-33

.)

OPERATION

The ETACS-ECU illuminates and extinguishes the
rear room lamp in accordance with the input signals
below.

• Ignition switch (IG1)

• Key reminder switch

• Door switches

• Front door lock actuator (driver’s side)

COMMENTS ON TROUBLE SYMPTOM

If this does not work normally, the above switch input
circuit(s), rear room lamp, or ETACS-ECU may have
a problem.

PROBABLE CAUSES

• Malfunction of the key reminder switch

• Malfunction of door switch

• Malfunction of the front door lock actuator

(driver’s side)

• Malfunction of rear room lamp

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Front room lamp operation check
Check that the front room lamp illuminates and extin-
guishes normally.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Refer to Inspection Procedure 1 "The front
room lamp does not illuminate normally."

P.54A-161

.

STEP 2. Rear room lamp bulb check
Check that the rear room lamp bulb is normal.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Replace the rear room lamp bulb.

STEP 3. Check of open circuit in (LP+1, LP+2,
LP+3&LP+4) line between the rear room lamp
connector and ETACS-ECU connector.

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Repair the connector(s) or wiring harness.

STEP 4. Check of open circuit in (RLP-1,
RLP-2&RLP-3) line between the rear room lamp
connector and ETACS-ECU connector.

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Repair the connector(s) or wiring harness.

STEP 5. Check of open circuit in earth line
between the rear room lamp connector and body
earth.

Q: Is the check result normal?

INTERIOR LAMP

CHASSIS ELECTRICAL

54A-164

YES :

Replace the rear room lamp, and then go to

Step 6.

NO :

Repair the connector(s) or wiring harness.

STEP 6. Retest the system
Check that the rear room lamp illuminates/extin-
guishes normally.

Q: Is the check result normal?

YES :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

use Troubleshooting/inspection Service
Points

− How to Cope with Intermittent

Malfunction ).

NO :

Replace the ETACS-ECU.

Inspection Procedure 3: The luggage compartment lamp does not illuminate normally.

CAUTION

• Before replacing the ECU, ensure that the

power supply circuit, the earth circuit and the
communication circuit are normal.

• When the ETACS-ECU of vehicles without

KOS is replaced, the encrypted code of the
ignition key needs to be registered to the
ETACS-ECU. (If the encrypted code is not reg-
istered, the engine cannot be started. Regis-
ter the encrypted code as described in
Immobilizer System

− How to Register Key ID

P.54A-33

.)

OPERATION

The ETACS-ECU illuminates and extinguishes the
luggage compartment lamp in accordance with the
input signals from tailgate lock actuator <vehicles
without electric tailgate> or tailgate latch <vehicles
with electric tailgate>.

COMMENTS ON TROUBLE SYMPTOM

If this does not work normally, the tailgate lock actua-
tor <vehicles without electric tailgate> or tailgate
latch <vehicles with electric tailgate> input circuit,
luggage compartment lamp, or ETACS-ECU may
have a problem.

PROBABLE CAUSES

• Malfunction of tailgate lock actuator <vehicles

without electric tailgate> or tailgate latch <vehi-
cles with electric tailgate>

• Malfunction of luggage compartment lamp

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III diagnosis code
Check if diagnosis code is set to the ETACS-ECU.

Q: Is the diagnosis code set?

YES :

Troubleshoot the ETACS-ECU. Refer to

P.54A-281

.

NO :

Go to Step 2.

STEP 2. M.U.T.-III data list
Use the ETACS-ECU service data to check the sig-
nals related to the operation of luggage compartment
lamp.

•

Item No.

Item name

Normal
condition

Item 260

Gate ajar switch

Open

Open the tailgate.

OK: Normal condition is displayed.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Troubleshoot the ETACS-ECU. Refer to
Inspection Procedure 9 "The tailgate lock
actuator <vehicles without electric tailgate>
or tailgate latch <vehicles with electric
tailgate> signal is not received"

P.54A-319

.

STEP 3. Luggage compartment lamp bulb check
Check that the luggage compartment lamp bulb is
normal.

Q: Is the check result normal?

YES :

Go to Step 4.

NO :

Replace the luggage compartment lamp
bulb.

STEP 4. Check of open circuit in (LP+1, LP+2,
LP+3&LP+4) line between the luggage
compartment lamp connector and ETACS-ECU
connector.

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Repair the connector(s) or wiring harness.