Mitsubishi 380. Manual — part 942

MULTI-CENTER DISPLAY

CHASSIS ELECTRICAL

54A-302

CHECK AT MULTI-CENTRE DISPLAY UNIT TERMINAL

M1543007600519

16DB560A

1 2

11 12

3 4

13 14

5 6

15 16

7 8

17 18

9 10

19 20

C-06

C-05

<MULTI-CENTRE DISPLAY>

TERMINAL
NO.

INPUT/
OUTPUT

SIGNAL SYMBOL

TERMINAL
VOLTAGE
(V)

HARNESS
DISCREPANCY

FAILURE SYMPTOM DUE TO
HARNESS DISCREPANCY

1

Input

Battery (Battery
power supply)

Battery
positive
voltage

Open
circuit

−

Screen is not displayed. All
operations are not possible.

−

Short
circuit

Fuse is blown.

2

Input

Ignition switch
(IG1)

Battery
positive
voltage

Open
circuit

−

Screen is not displayed. All
operations are not possible.

−

Short
circuit

Fuse is blown.

3

Input

Ignition switch
(ACC)

Battery
positive
voltage

Open
circuit

−

Screen is not displayed. All
operations are not possible.

−

Short
circuit

Fuse is blown.

4

Input

ILL + (lighting
switch)

Hi: Battery
positive
voltage
Lo: 0

− 1

Open
circuit

Short
circuit

Not lighted.

5

Output

ILL - (illumination
light control
signal)

0.4

Open
circuit

Short
circuit

display brightness control is
not possible.

6

−

GND

0

Open
circuit

−

Screen is not displayed.

7 Input/out

put

SB3

−

−

−

−

8

Input/out
put

M-DATA
(Audio)(M-BUS
data signal)

• Hi: 4 − 5

• Lo: 0 − 1

Open
circuit

Short
circuit

Multi-centre display

• Frozen screen (screen

does not change)

• "Communication Error"

indication

MULTI-CENTER DISPLAY

CHASSIS ELECTRICAL

54A-303

9

Input/out
put

M-CLOCK (A/C)
(M-BUS clock
signal)

• Hi: 4 − 5

• Lo: 0 − 1

Open
circuit

Short
circuit

Multi-centre display

• Frozen screen (screen

does not change)

• "Communication Error"

indication

10

Input/out
put

M-BUSY (Audio)

• Hi: 5

• Lo: 0 − 1

Open
circuit

Short
circuit

Multi-centre display

• Frozen screen (screen

does not change)

• "Communication Error"

indication

11

No connection

14

− 20

No connection

TERMINAL
NO.

INPUT/
OUTPUT

SIGNAL SYMBOL

TERMINAL
VOLTAGE
(V)

HARNESS
DISCREPANCY

FAILURE SYMPTOM DUE TO
HARNESS DISCREPANCY

MULTI-CENTER DISPLAY

CHASSIS ELECTRICAL

54A-304

SPECIAL TOOLS

M1543000601782

TOOL

TOOL NUMBER
AND NAME

REPLACED BY
MILLER TOOL
NUMBER

APPLICATION

MB991958

A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991914
F: MB991825
G: MB991826

MUT-III sub assembly

A: Vehicle

communication
interface (V.C.I.)

B: MUT-III USB cable
C: MUT-III main

harness A
(Vehicles with CAN
communication
system)

D: MUT-III main

harness B
(Vehicles without
CAN
communication
system)

E: MUT-III main

harness C (for
daimler chrysler
models only)

F: MUT-III

measurement
adapter

G: MUT-III trigger

harness

MB991824-KIT

NOTE: G: MB991826
MUT-III Trigger Harness
is not necessary when
pushing V.C.I. ENTER
key.

Reading diagnostic
trouble code

CAUTION

MUT-III main harness A
(MB991910) should be
used. MUT-III main
harness B and C
should not be used for
this vehicle.

MB991910

MB991826

MB991958

MB991911

MB991914

MB991824

MB991827

MB991825

DO NOT USE

A

B

C

D

E

F

G

DO NOT USE

MULTI-CENTER DISPLAY

CHASSIS ELECTRICAL

54A-305

MB991223
A: MB991219
B: MB991220
C: MB991221
D: MB991222

Harness set

A: Test harness
B: LED harness
C: LED harness

adapter

D: Probe

General service tool
(jumper)

Making voltage and
resistance
measurements during
troubleshooting

A: Connect pin contact

pressure inspection

B: Power circuit

inspection

C: Power circuit

inspection

D: Commercial tester

connection

TOOL

TOOL NUMBER
AND NAME

REPLACED BY
MILLER TOOL
NUMBER

APPLICATION

MB991223

A

D

C

B

AF