Mitsubishi Outlander GS45X. Manual — part 71

DOME LIGHT

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CHASSIS ELECTRICAL

54A-281

1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select" from the start-up screen.
4. Select "From 2006 MY" of "Model Year." When the "Vehicle

Information" is displayed, check the contents.

5. Select "ETACS" from "System List", and press the "OK"

button.
NOTE: When the "Loading Option Setup" list is displayed,
check the applicable item.

6. Select "Diagnostic Trouble Code" to read the DTC.
7. If a DTC is set, it is shown.
8. Choose "Erase DTCs" to erase the DTC.

TROUBLE SYMPTOM CHART

M1541300200184

Trouble symptom

Inspection
Procedure No.

Reference page

The front dome light does not illuminate normally.

1

P.54A-282

The rear dome light does not illuminate normally.

2

P.54A-286

The luggage compartment light does not illuminate normally.

3

P.54A-291

The foot light does not illuminate normally.

4

P.54A-296

The interior light auto-cut function does not operate correctly.

5

P.54A-299

DOME LIGHT

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CHASSIS ELECTRICAL

54A-282

SYMPTOM PROCEDURES

Inspection Procedure 1: The front dome light does not illuminate normally.

.

TROUBLE JUDGMENT

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

• Ignition switch (IG1)

• Key reminder switch

• Door switches

AC703368

Front Dome Light Circuit

ETACS-ECU

FRONT
DOME
LIGHT

AB

ACA02655 AN

Connector: C-316

AC702816 AD

Connector: D-02

DOME LIGHT

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CHASSIS ELECTRICAL

54A-283

• Liftgate latch switch

• Front door lock actuator

.

TECHNICAL DESCRIPTION (COMMENT)

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

.

TROUBLESHOOTING HINTS

• Malfunction of the key reminder switch

• Malfunction of door switch

• Malfunction of liftgate latch switch

• Malfunction of the front door lock actuator

• Malfunction of front dome light

• Malfunction of the ETACS-ECU

• The wiring harness or connectors may have

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector

DIAGNOSIS

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A (Vehicles with

CAN communication system)

STEP 1. Rear dome light operation check.
Check that the rear dome light illuminates and extinguishes
normally.
Q: Does rear dome light work normally?

YES : Go to Step 2.
NO : Replace the ETACS-ECU.

STEP 2. Using scan tool MB991958, read the diagnostic
trouble code.

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958. Refer to "How to connect

scan too (M.U.T.-III)

P.54A-280

."

(2) Turn the ignition switch to the "ON" position.
(3) Check whether the ETACS-ECU related DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Diagnose the ETACS-ECU. Refer to Diagnosis

P.54A-732

.

NO : Go to Step 3.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

AB

DOME LIGHT

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CHASSIS ELECTRICAL

54A-284

STEP 3. Using scan tool MB991958, check data list.
Use the ETACS-ECU data list to check the signals related to
the front dome light.

• Turn the ignition switch to the "LOCK" (OFF) position.

• Remove the ignition key from the ignition key cylinder.

• Open each door.

• Open the liftgate.

Q: Does scan tool MB991958 display the items "Dr door

unlock", "IG voltage", "Dr door ajar switch", "As door
ajar switch", "RR door ajar switch", "RL door ajar
switch", "Trunk/gate trunk ajar switch" and "Handle
lock switch" as normal condition?
YES <Normal conditions are displayed for all items.> :

Go to Step 4.

NO <Normal condition is not displayed for item No.
228.> : Troubleshoot the ETACS-ECU. Refer to Inspection

Procedure 4 "ETACS-ECU does not receive any
signal from the front door lock actuator"

P.54A-794

.

NO <Normal condition is not displayed for item No.
254.> : Troubleshoot the ETACS-ECU. Refer to Inspection

Procedure 2 "ETACS-ECU does not receive any
signal from the ignition switch (IG1)"

P.54A-788

.

NO <Normal condition is not displayed for item No.
256.> : Troubleshoot the ETACS-ECU. Refer to Inspection

Procedure 5 "ETACS-ECU does not receive any
signal from the front door switch (LH)"

P.54A-801

.

NO <Normal condition is not displayed for item No.
257.> : Troubleshoot the ETACS-ECU. Refer to Inspection

Procedure 6 "ETACS-ECU does not receive any
signal from the front door switch (RH)"

P.54A-803

.

NO <Normal condition is not displayed for item No.
258.> : Troubleshoot the ETACS-ECU. Refer to Inspection

Procedure 7 "ETACS-ECU does not receive any
signal from the rear door switch (LH)"

P.54A-805

.

NO <Normal condition is not displayed for item No.
259.> : Troubleshoot the ETACS-ECU. Refer to Inspection

Item No.

Item name

Normal
conditions

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 260

Trunk/gate trunk ajar
switch

Open

Item 264

Handle lock switch

Key in

→ Key

out