Mitsubishi Pajero Pinin. Manual - part 339

 

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Mitsubishi Pajero Pinin. Manual - part 339

 

 

CHASSIS ELECTRICAL – 

Multi-center Display <Middle Grade>

54A-72

2.

AUDIO UNIT

Antenna

CD control connector
(DIN cable)

Termi-
nal No

Input/
Output

Signal Symbol

Terminal
Voltage

Harness Problem

Trouble Symptom Resulting from
Harness Problem

nal 

No.

Output

Voltage
(V)

Open
Circuit

Short-
circuit

Harness Problem

1

Output

SPEAKER 
RR (+)

0 – 
System
voltage

f

–

No sound is output from rear right
speaker.

voltage
(AC)

–

f

No sound is output from rear left and
right speakers.

2

Output

SPEAKER
RL (+)

0 – 
System
voltage

f

–

No sound is output from rear left
speaker.

voltage
(AC)

–

f

No sound is output from rear left and
right speakers.

3

–

–

–

–

–

–

4

Input

ILL (+)

Hi: 
System
voltage

f

–

Nighttime illumination does not ap-
pear for audio unit.

voltage
Lo: 0 – 1

–

f

Blown multipurpose fuse.

5

Output

SPEAKER
FL (+)

0 – 
System
voltage

f

–

No sound is output from front left
speaker.

voltage
(AC)

–

f

No sound is output from front left and
right speakers.

6

Output

SPEAKER
FR (+)

0 – 
System
voltage

f

–

No sound is output from front right
speaker.

voltage
(AC)

–

f

No sound is output from front left and
right speakers.

7

Output

SPEAKER 
RR (–)

0 – 
System
voltage

f

–

No sound is output from rear right
speaker.

voltage
(AC)

–

f

No sound is output from rear left and
right speakers.

CHASSIS ELECTRICAL – 

Multi-center Display <Middle Grade>

54A-73

Termi-
nal No

Input/
Output

Signal Symbol

Terminal
Voltage

Harness Problem

Trouble Symptom Resulting from
Harness Problem

nal 

No.

Output

Voltage
(V)

Open
Circuit

Short-
circuit

Harness Problem

8

Output

SPEAKER 
RL (–)

0 – 
System

f

–

The rear left speaker does not sound.

RL  (–)

System
voltage
(AC)

–

f

The rear left and right speakers do
not sound.

9

–

–

–

–

–

–

10

Input

ACC (ACC power
supply)
(System voltage)

System
voltage

f

–

The audio unit power supply does not
turn on.

(System voltage)

–

f

Blown multipurpose fuse.

11

Input

+B
(System voltage)

System
voltage

f

–

Cassette is not ejected when the
ignition switch is at ACC.
The memory are cleared.

–

f

Blown multipurpose fuse.

12

–

ILL (–)

–

–

–

–

13

Output

SPEAKER 
FL (–)

0 – 
System
voltage

f

–

The front left speaker does not
sound.

voltage
(AC)

–

f

The front left and right speakers do
not sound.

14

Output

SPEAKER
FR (–)

0 – 
System
voltage

f

–

The front right speaker does not
sound.

voltage
(AC)

–

f

The front left and right speakers do
not sound.

21

Input/
Output

M–DATA

Hi: 
4 or more
Lo: 
1 or less

f

f

Panel switches cannot be operated.

22

Input/
Output

M–SCK

Hi: 
4 or more
Lo: 
1 or less

f

f

Panel switches cannot be operated.

23 – 28

–

–

–

–

–

–

29

Input/
Output

M–BUSY

Hi: 
4 or more
Lo: 
1 or less

f

f

Panel switches cannot be operated.

30

–

SHIELD EARTH 
(M–BUS)

–

–

–

–

31– 36

–

–

–

–

–

–

CHASSIS ELECTRICAL – 

Multi-center Display <Middle Grade>

54A-74

INSPECTION CHART CLASSIFIED BY TROUBLE SYMPTOMS

Related Unit

Trouble Symptom

Inspection
Procedure
No.

Reference
Page

Malfunction of  multi-
center display

No display appears after the ignition key is turned to ACC.

1

54A-74

center display

TAPE/CD, UML switches do not work.

2

54A-75

CD switches do not work.

3

54A-76

Outside temperature data is not displayed. /Outside
temperature data is abnormal.

4

54A-76

Abnormal driving data display

D

Abnormal average fuel consumption and average
speed displays.

D

Abnormal cruising distance displays

5

54A-77

No illumination of audio button

6

54A-78

Dim display

7

54A-78

Clock runs fast or slow

8

54A-78

INSPECTION PROCEDURES FOR EACH TROUBLE SYMPTOM

INSPECTION PROCEDURE 1

 No display appears after the ignition key is turned to ACC.

Check the connector: C-52

NG

Repair

OK

Measure at multi-center display connector C-52.

D

Ignition switch: ACC

D

Voltage between terminal (25), (26) and body earth
OK: System voltage

YES

Repair the fuse and the harness.

NO

Measure at multi-center display connector C-52.

D

Check continuity between terminal (28) and body earth.
OK: Continuity exists

OK

Repair the harness.

NG

Replace the multi-center display unit.

CHASSIS ELECTRICAL – 

Multi-center Display <Middle Grade>

54A-75

INSPECTION PROCEDURE 2

TAPE/CD, UML switches do not work.

NO

NG

OK

Check the audio unit connected in sys-
tem on service mode.
Is it available to check?

OK

OK

Replace the audio unit

NG

OK

Check the connectors: C-53, C-54

NG

Check the reoccurrence of symptom
when DIN cable is out.

NG

OK

YES

Replace the multi-center display.

Measure at multi center display connec-
tor C-54.

D

Ignition switch: ACC

D

Voltage between terminal (10), (11)
and body earth
OK: System voltage

Repair the harness.

Replace the multi-center display unit.

Are there any audio set as option?

NG

Check the DIN cable.

OK

Replace the option audio.

NG

Check cassette function with LOAD-
ING/EJECT

OK

Replace the key panel and repair

Replace the audio unit.

Check the detachable key panel.
(dust or broken button etc.)

NG

OK

Check output signals on the connector
in multi-center display unit side.

D

Disconnect C-53 connector for
M-BUS

D

Monitor output signals on 7, 8, 17
terminal of C-53 connector.

NG

Repair the harness.

OK

Check output signals on the connector
in audio unit side.

D

Disconnect C-54 connector for
M-BUS

D

Monitor output signals on 21, 22,
29 terminal of C-54 connector.

Replace the audio unit.

OK

Replace the DIN cable.

 

 

 

 

 

 

 

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