Mitsubishi Outlander GS45X. Manual - part 73

DOME LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-289

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

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

DOME LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-290

Procedure 8 "ETACS-ECU does not receive any
signal from the rear door switch (RH)"

P.54A-808

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

Procedure 9 "ETACS-ECU does not receive any
signal from the liftgate switch"

P.54A-810

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

Procedure 3 "ETACS-ECU does not receive any
signal from the key reminder switch"

P.54A-791

STEP 4. Check rear dome light connector D-10 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is rear dome light connector D-10 in good condition?

YES : Go to Step 5.
NO : Repair the damaged parts.

STEP 5. Rear dome light bulb check
Check that the rear dome light bulb is normal.
Q: Does rear dome light work normally?

YES : Go to Step 6.
NO : Replace the rear dome light bulb.

STEP 6. Check ETACS-ECU connector C-316 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connectors C-316 in good condition?

YES : Go to Step 7.
NO : Repair the damaged parts.

STEP 7. Check the wiring harness between rear dome light
D-10 connector terminal (No. 1/2) and ETACS-ECU
connector C-316 (terminal No. 6/5)
Check the communication line for open or short circuit.
Q: Is wiring harness between rear dome light connector

D-10 (terminal No. 1/2) and ETACS-ECU connector C-316
(terminal No. 6/5) in good condition?
YES : Go to Step 8.
NO : Repair the wiring harness.

STEP 8. Retest the system
Check that the rear dome light illuminates/extinguishes nor-
mally.
Q: Does rear dome light work normally?

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

P.00-15

NO : Replace the ETACS-ECU.

DOME LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-291

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

TROUBLE JUDGMENT

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

• Ignition switch (IG1)

• Key reminder switch

• Door switches

• Liftgate latch switch

• Front door lock actuator

TECHNICAL DESCRIPTION (COMMENT)

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

AC703381

Luggage Compartment Light Circuit

ETACS-ECU

LUGGAGE
COMPARTMENT
LIGHT

ACA02655 AC

Connector: C-311

AC702817AF

Connector: D-12

AC702963 AC

Connector: F-02

F-02 (GR)

DOME LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-292

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 luggage compartment 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. 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

P.54A-732

NO : Go to Step 2.

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

Content .. 71 72 73 74 ..