Mitsubishi Galant (2004+). Manual - part 1497

 

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Mitsubishi Galant (2004+). Manual - part 1497

 

 

MULTI-CENTER DISPLAY

TSB Revision

CHASSIS ELECTRICAL

54A-231

FAILURE DIAGNOSIS SERVICE MODE 
FUNCTION  <MIDDLE GRADE TYPE>

The multi-center display unit (middle grade type) with 
the following functions for the failure diagnosis ser-
vice. 

.

Starting up the service mode
1. ignition switch "LOCK" (OFF) position.
2. Turn the ignition switch to the "ACC" position while 

depressing the "DISP" button on the multi-center display unit 
(middle grade type). After approximately 5 seconds, the 
service mode start-up screen is displayed.

.

Service mode function

CONTENTS

Service 
function

Communication check

The multi-center display checks communication conditions 
below, and shows the check result on the screen. Turn the 
ignition switch to the ON position before using this 
function. 

• M bus communication condition between the 

multi-center display unit (middle grade type) and the 
audio system

• Communication condition between the (middle grade 

type) multi-center display unit and relevant units (such 
as ETACS-ECU)

Monitor check 

Checks whether the screen display functions.

Compass check

Checks whether the geomagnetism sensor are working 
normally.

Vehicle check

Displays current vehicle conditions below

• Displays the current condition of the lighting switch.

• Displays the current position of the ignition switch.

• Displays the current voltage of the battery

Auto check

Checks the following items automatically.

• Communication check

• Monitor check 

• Compass check

• Vehicle check

AC208698AB

MULTI-CENTER DISPLAY

TSB Revision

CHASSIS ELECTRICAL

54A-232

Communication check
1. Activate the service mode start-up screen.
2. ignition switch "ON" position.
3. Choose "communication check mode" by pressing the 

function button switch 2.

4. Execute "ENTER" by pressing the function button switch 3.

5. The multi-center display checks the communication 

conditions and displays the check result.

.

Monitor check
1. Choose "Monitor check" from the service mode start-up 

screen by pressing function button switch 2, and then 
execute "ENTER" by pressing function button switch 3.

2. Choose a color by function button switch 2, and then 

execute "ENTER" by function button switch 3. You can 
check the chosen color on the screen.

.

CHECK 
ITEM

DISPLAY CONTENT OR 

CONDITION

M bus and 
CAN bus 
communicat
ions

• OK

• NG

OK: 

NG: Open circuit, or 

communication error 
caused by failure in 
relevant unit(s)

BACK

ENTER

Service  mode

1. Communication  check

2. Monitor  check

3. Compass  check

4. Vehicle  check

5. Auto  check

AC208699

AB

Communication check result

M-BUS             : OK
CAN-BUS        : OK

AC208700AB

BACK

ENTER

Service  mode

1. Communication  check

2. Monitor  check

3. Compass  check
4. Vehicle  check
5. Auto  check

AC208701AB

Color

Gray
White
Black

AC208702 AB

MULTI-CENTER DISPLAY

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CHASSIS ELECTRICAL

54A-233

Compass check
1. Choose "Compass check" from the service mode start-up 

screen by pressing function button switch 2, and then 
execute a check by pressing function button switch 3.

2. The multi-center display performs check and then displays 

the check result.

.

Vehicle check 
1. Choose "vehicle check" from the service mode start-up 

screen by pressing function button switch 2, and then 
execute a check by pressing function button switch 3.

2. The multi-center display performs check and displays the 

check result. Operate the lighting switch or the ignition 
switch. Check whether the multi-center display screen 
corresponds to that operation. 

.

CHECK 
ITEM

DISPLAY CONTENT OR 

CONDITION

Communicati
on check with 
compass 
sensor

• OK

• NG

OK: 

NG: Open circuit, or 

communication error 
caused by failure in 
relevant unit(s)

BACK

ENTER

Service  mode

1. Communication  check
2. Monitor  check

3. Compass  check

4. Vehicle  check
5. Auto  check

AC208703 AB

Communication check result

Compass  sensor    

ENTER

AC208704

AB

CHECK 
ITEM

DISPLAY CONTENT OR 

CONDITION

Illumination

ILL: ON

 If the lighting switch is ON

ILL: OFF If the lighting switch is OFF

ignition 
switch 
position

• IG

• ACC

Displays the current 
position of the ignition 
switch.

Battery 
positive 
voltage

Displays the voltage.

BACK

ENTER

Service  mode

1. Communication  check
2. Monitor  check

3. Compass  check

4. Vehicle  check

5. Auto  check

AC208705AB

Vehicle signal check

ILL                       : OFF
Key position       : ACC
Voltage                : 14.9V

ENTER

AC208706AB

MULTI-CENTER DISPLAY

TSB Revision

CHASSIS ELECTRICAL

54A-234

Auto check
1. Activate the service mode start-up screen.
2. Turn the ignition switch to  "ON" position.
3. Choose "Auto check" by pressing function button switch 2.
4. Execute "ENTER" by pressing the function button switch 3.
5. The multi-center display unit checks the communication 

condition, and then shows the check results of 
"Communication check", "Monitor check", "Compass check", 
and "Vehicle check". Then the multi-center display ceases 
CAN communication in approximately seven seconds.

.

Release of service mode
Move from the check result screen to the service mode start-up 
screen by pressing "ENTER" above function button switch 3. If 
you press "BACK" above function button switch 1 during pro-
cessing, the checks will be cancelled and the screen returns to 
service mode start-up screen.

Fail-safe function of the multi-center display unit 
(middle grade type)

If abnormal power supply voltage or abnormally high tempera-
ture is detected in the multi-center display unit (middle grade 
type), a fail-safe function will be activated to protect the unit, 
and then blank the screen.

Fail-safe function is activated when:
Power supply voltage is abnormal

• Excessively low voltage: Power supply voltage remains 

9 volts or less for approximately 10 seconds.

• Excessively high voltage: Power supply voltage remains 

17 volts or more for approximately 10 seconds.

Abnormally high temperature is detected in the unit.

• Internal temperature remains 95°C (203°F) for 60 sec-

onds.

If an abnormal voltage or temperature is detected, the 
multi-center display unit will sound its buzzer to indicate this 
and activate a message to blank the screen in approximately 
seven seconds.
NOTE: The unit blanks the screen immediately when the power 
supply voltage reaches 18 volts.

Fail-safe function is deactivated when:
Power supply voltage is abnormal

• The fail-safe function will be deactivated if the power 

supply voltage remains 10 volts or more for approxi-
mately five seconds, or the ignition switch is turned to 
the "LOCK" (OFF) position.

• The fail-safe function will be deactivated if the power 

supply voltage remains 17 volts or less for approxi-
mately five seconds or more, or the ignition switch is 
turned to the "LOCK" (OFF) position.

Abnormally high temperature is detected in the unit.

BACK

ENTER

Service  mode

1. Communication  check
2. Monitor  check

3. Compass  check
4. Vehicle  check

5. Auto  check

AC208707AB

 

 

 

 

 

 

 

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