Mitsubishi Galant 9G. Manual — part 1600

MULTI-CENTER DISPLAY

TSB Revision

CHASSIS ELECTRICAL

54A-272

STEP 3. Check the wiring harness between radio, CD
player and CD changer connector C-117 (terminal 46, 42,
41 and 47) and multi-center display unit (middle grade
type) connector C-05 (terminal 7, 8, 9 and 10).
Q: Is the wiring harness between radio, CD player and CD

changer connector C-117 (terminal 46, 42, 41 and 47)
and multi-center display unit (middle grade type)
connector C-05 (terminal 7, 8, 9 and 10) in good
condition?
YES : Go to Step 4.
NO : Repair the wiring harness and then go to step 1.

STEP 4.Using the oscilloscope, check the M BUS line.
(1) Connect the multi-center display unit (middle grade type)

connector C-05 and radio, CD player and CD changer
connector C-117.

(2) Connect the oscilloscope probe to terminal 10 of the

multi-center display unit (middle grade type) connector by
backprobing.

(3) Turn the ignition switch to “ACC” position.
(4) Operate each of the radio, CD player and CD changer

switches.

Q: Is a wave pattern displayed?

YES : Intermittent malfunction (Refer to GROUP 00, How to

Use Troubleshooting/Inspection Service Points - How
to Cope with Intermittent malfunction

P.00-14

.

NO : Replace multi-center display unit (middle grade type)

and then go to Step 6.

STEP 5. Retest the system
Confirm that the audio operation screen is displayed normally.
Q: Is the check result satisfactory?

YES : The procedure is complete.
NO : Replace radio, CD player and CD changer and then

go to step 6.

AC305234

CONNECTORS: C-05, C-117

C-05 (B)

C-117

HARNESS SIDE

C-05

HARNESS SIDE

C-117

41

42

43

44

45

46

47

48

49

50

BF

AC209711AB

C-06 HARNESS CONNETOR:
HARNESS SIDE

OSCILLOSCOPE
PROBE

OSCILLOSCOPE

MULTI-CENTER DISPLAY

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CHASSIS ELECTRICAL

54A-273

STEP 6. Retest the system
Confirm that the audio operation screen is displayed normally.
Q: Is the check result satisfactory?

YES : The procedure is complete.
NO : Go to step 1.

INSPECTION PROCEDURE 7: The Compass can not be Calibrated Manually, or Becomes Out of
Calibration Easily (Middle Grade Type)

.

TECHNICAL DESCRIPTION (COMMENT)

The compass sensor, which measures the direction
of the vehicle, is incorporated in the multi-center dis-
play unit (middle grade type). If the direction of the
vehicle is not displayed normally by repeating the
manual calibration, the compass sensor may be
defective, the vehicle body may have been magne-
tized, or the manual calibration is performed in
strongly magnetized environment.

.

TROUBLESHOOTING HINTS

• The compass sensor in the multi-center display

unit (middle grade type) is defective

• Magnetization of vehicle body

• Calibration in magnetized environment (such as

factory or a high voltage conductor)

DIAGNOSIS

STEP 1. Check the compass sensor by using a
self-diagnostic function.
Start up the service mode to check the compass (Refer to

P.54A-215

).

Q: Is "NG" displayed as the check result for the compass

sensor?
YES : Replace multi-center display unit (middle grade type)

and then go to step 5.

NO : Go to Step 2.

STEP 2. Confirm if the manual calibration is performed
successfully.
(1) Park the vehicle on an open space, and confirm that the

place is not magnetized strongly.

(2) Set the manual calibration, and drive the vehicle in a circle

(Refer to

P.54A-275

).

Q: Is the manual calibration performed successfully?

YES : Go to Step 5.
NO : Go to Step 3.

Communication check result

Compass sensor

ENTER

AC208704 AC

: NG

AC001243 AB

MULTI-CENTER DISPLAY

TSB Revision

CHASSIS ELECTRICAL

54A-274

STEP 3. Demagnetize the vehicle.
In certain circumstances the vehicle body may be magnetized.
For how to demagnetize, refer to

P.54A-278

.

Q: Is the demagnetization performed successfully?

YES : Go to Step 4.
NO : Replace multi-center display unit (middle grade type)

and go to step 4.

STEP 4. Perform the manual calibration again.
Q: Is the manual calibration performed successfully?

YES : Go to Step 5.
NO : Replace multi-center display unit (middle grade type)

and then go to Step 1.

STEP 5. Retest the system.
Q: Is the check result satisfactory?

YES : The procedure is complete.
NO : Replace multi-center display unit (middle grade type)

and then go to Step 1.

ON-VEHICLE SERVICE

AMBIENT AIR TEMPERATURE UNIT
CUSTOMIZATION (MIDDLE GRADE TYPE)

M1543017800020

When you press the function button switch on the multi-center
display, the measurement unit, which is used for the ambient
air temperature display, can be changed from centigrade to
Fahrenheit, or vice versa.
1. Call up "Customization" screen, and choose "Unit (

°C to °F)"

by pressing function button switch 2. Then press function
button switch 3 (ENTER).

2. Ensure that "Outside temperature unit" is chosen from the

"Customization units" screen, and then press function button
switch 3 (ENTER).

NOTE: If you reconnect the battery cables, the display returns
to the default unit (

°

F).

AC208594 AB

AC208595AB

MULTI-CENTER DISPLAY

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CHASSIS ELECTRICAL

54A-275

COMPASS CALIBRATION (MIDDLE GRADE TYPE)

M1543013800103

Manual calibration (by turning the vehicle)

The multi-center display can show the direction of the vehicle
by means of its compass sensor. The compass sensor is cali-
brated automatically when the vehicle is driven and turned, and
do not normally require calibration. But, if the sensor is magne-
tized strongly by any reason, the compass may show inaccu-
rate direction. In this case, a manual calibration of the compass
sensor will be necessary.
NOTE: The compass returns to the correct compass direction
vehicle moves to an area where the geomagnetism is stabi-
lized.
1. Ignition switch "ACC" position.
2. A set-up screen will be called up by pressing to hold the

"DISP" button switch on the multi-center display.

3. Choose "Next Menu (Operable only with vehicle stationary)"

by pressing function button switch 2, and then press function
button switch 3 (ENTER).

4. The compass setting screen is called up. Choose "compass

calibration" by pressing function button switch 2, and then
press function button switch 3 (ENTER).

AC208698AB

RETURN

ENTER

1. Display brightness adjustment

3. Next Menu (Operable only with

vehicle stationary)

2. Display off setting

AC208708AC

Zone code setting

Compass calibration

(Compass)

RETURN

ENTER

AC208552AC