Mitsubishi Outlander XL. Manual — part 1017

SYMPTOM PROCEDURES

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

M15410900172USA0000010000

Front Dome Light Circuit

ETACS-ECU

FRONT
DOME
LIGHT

ZC6008780004

Connector: C-316

LIGHTING

54Ac-141

DIAGNOSIS

ZC6008790023

Connector: D-02

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

｠

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 terminals
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.

54Ac-142

LIGHTING

DIAGNOSIS

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

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958. Refer to "How to connect scan
too (M.U.T.-III) P.54Ac-139."

(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 GROUP 54Ad,

Diagnosis P.54Ad-8.

NO:

Go to Step 3.

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.

Item No.

Item name

Normal
conditions

Item 228

Dr door unlock

ON

Item 254

IG voltage

Battery
voltage

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

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?

LIGHTING

54Ac-143

DIAGNOSIS

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 GROUP 54Ad,

Diagnosis - Inspection Procedure 4 "ETACS-ECU does not
receive any signal from the front door lock actuator" P.
54Ad-67.

NO<Normal condition is not displayed for item No.
254.>:

Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 4 "ETACS-ECU does not
receive any signal from the ignition switch (IG1)" P.
54Ad-62.

NO<Normal condition is not displayed for item No.
256.>:

Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 5 "ETACS-ECU does not
receive any signal from the front door switch (LH)" P.
54Ad-73.

NO<Normal condition is not displayed for item No.
257.>:

Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 6 "ETACS-ECU does not
receive any signal from the front door switch (RH)" P.
54Ad-75.

NO<Normal condition is not displayed for item No.
258.>:

Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 7 "ETACS-ECU does not
receive any signal from the rear door switch (LH)" P.
54Ad-77.

NO<Normal condition is not displayed for item No.
259.>:

Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 8 "ETACS-ECU does not
receive any signal from the rear door switch (RH)" P.
54Ad-80.

NO<Normal condition is not displayed for item No.
260.>:

Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 9 "ETACS-ECU does not
receive any signal from the liftgate switch" P.
54Ad-82.

NO<Normal condition is not displayed for item No.
264.>:

Troubleshoot the ETACS-ECU.Refer to GROUP 54Ad,

Diagnosis - Inspection Procedure 3 "ETACS-ECU does not
receive any signal from the key reminder switch" P.
54Ad-64.

STEP 4. Check front dome light connector D-02 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.

Q:Is front dome light connector D-02 in good condition?

YES:

Go to Step 5.

NO:

Repair the damaged parts.

STEP 5. Front dome light bulb check
Check that the front dome light bulb is normal.

Q:Does front dome light work normal?

54Ac-144

LIGHTING

DIAGNOSIS