Mitsubishi Evolution X. Manual - part 974

DOME LIGHT

TSB Revision

CHASSIS ELECTRICAL

54A-257

STEP 3. Using scan tool MB991958, check data list.
Use the ETACS-ECU data list to check the signals related to 
the interior light auto-cut function.

• Turn the ignition switch to the "ACC" position.

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

• Open each door.

• Open the trunk lid.

Q: Does scan tool MB991958 display the items "IG 

voltage", "ACC switch", "As door ajar switch", "RR door 
ajar switch", and "RL door ajar switch" as normal 
condition?
YES  : (Normal conditions are displayed for all items.) Go to 

Step 4.

NO  :  (Normal condition is not displayed.) Troubleshoot the 

ETACS-ECU. Refer to ETACS, Diagnosis, Input 
signal chart 

P.54A-639

.

STEP 4. Retest the system.
Check that the interior light automatic shutdown function works 
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 

P.00-15

).

NO :  Replace the ETACS-ECU.

Item No.

Item name

Normal condition

Item 254

IG voltage

0 V

Item 288

ACC switch

OFF

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

DOME LIGHT

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CHASSIS ELECTRICAL

54A-258

ON-VEHICLE SERVICE

CUSTOMIZATION FUNCTION

M1541301200303

By operating the ETACS system or MMCS of scan 
tool MB991958, the following functions can be pro-
grammed. The programmed information is held even 
when the battery is disconnected.

Adjustment 
item (scan tool 
MB991958 
display)

Adjustment item

Adjusting contents 
(scan tool MB991958 
display)

Adjusting contents

Dome light 
delay timer with 
door

Adjustment of 
interior light delay 
shutdown time

0 sec

0 second (no delay shutdown time)

7.5 sec

7.5 seconds

15 sec

15 seconds

30 sec

30 seconds (default)

60 sec

60 seconds

120 sec

120 seconds

180 sec

180 seconds

Interior light 
auto cut timer

Adjustment of 
interior light 
automatic shutdown 
function operation 
time

Disable

No function

3 min

3 minutes

30 min

30 minutes (default)

60 min

60 minutes

DOME LIGHT

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CHASSIS ELECTRICAL

54A-259

DOME LIGHT REMOVAL AND INSTALLATION

M1541302700099

AC709278AB

9

1

2

3

4

5

6

7

8

Clip

Section A - A

3

A

A

2

Note
         : Clip positions

A

A

Removal Steps 

1.

Front dome light lens

2.

Dome light bulb

<<

A

>>

3.

Front dome light

4.

Front dome light cover

5.

Microphone unit <Vehicles with 
hands-free cellular phone system>

6.

Sunroof switch <Vehicles with 
sunroof>

7.

Rear dome light lens

8.

Dome light bulb

9.

Rear dome light

Removal Steps (Continued)

DOME LIGHT

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CHASSIS ELECTRICAL

54A-260

REMOVAL SERVICE POINT

.

<<A>> FRONT DOME LIGHT REMOVAL

While pressing the front dome light toward the rear of the vehi-
cle, slide the front side of the front dome light downward, and 
remove the front dome light.

LUGGAGE COMPARTMENT LIGHT REMOVAL AND INSTALLATION

M1541302600014

AC705372

A

A

AC

Clip

Claw

Section A – A

Front dome light

Bracket

Front dome light

Headlining

Forward of vehicle

A

A

AC610327AB

1

2

A

A

Section A - A

1

Removal Steps 

1.

Luggage compartment light lens

2.

Luggage compartment light bulb