Mitsubishi Pajero Pinin. Manual — part 345
CHASSIS ELECTRICAL –
Multi-Center Display <High Grade>
54A-96
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
31
–
–
–
–
–
–
32
–
SHIELD EARTH
–
–
–
–
33
–
–
–
–
–
–
34
Output
R+SYNC
0 – 5
f
f
Abnormal navigation screen color.
35, 36
–
–
–
–
–
–
INSPECTION CHART CLASSIFIED BY TROUBLE SYMPTOMS
Related Unit
Trouble Symptom
Inspection
Procedure
No.
Reference
Page
Malfunction of navigation
unit, multi-center display,
audio unit and related
TAPE/CD, UML switches do not work. No display appears
after the ignition key is turned to ACC.
1
54A-97
audio unit and related
sensor, harness
TAPE/CD, UML switches do not work. (Display appears.)
2
54A-99
No display appears after the ignition key is turned to ACC,
but TAPE/CD, UML switches can be operative.
3
54A-100
CD changer screen display does not appear when
TAPE/CD switch is operated.
4
54A-101
GPS reception is not possible.
5
54A-101
Outside air temperature data is not displayed.
6
54A-101
Abnormal driving data display
D
Abnormal average fuel consumption and average
speed displays.
D
Abnormal cruising distance displays
7
54A-102
Display moves about.
Screen colours do not match correctly.
8
54A-103
Daytime/nighttime display mode does not change in
conjunction with lighting switch operations.
9
54A-103
Compass display does not rotate , or guidance does not
appear when following a route.
10
54A-104
One of the following messages appears during navigation
mode.
D
The CD drive has failure condition. Check and reload
the disc, please.
D
Wrong disc is in the CD drive. Insert a map disc,
please.
D
No disc is in the CD drive. Insert a map disc please.
D
A music disc is in the CD-drive.
11
54A-104
CHASSIS ELECTRICAL –
Multi-Center Display <High Grade>
54A-97
INSPECTION PROCEDURES FOR EACH TROUBLE SYMPTOM
INSPECTION PROCEDURE 1
TAPE/CD, UML switches do not work. No display appears after the ignition key is turned to ACC.
Check connectors: C-11, C-53, C-54
and DIN connectors between audio and
navigation unit
NG
Repair
OK
Turn off the ignition key and turn to ACC
position again. Does any screen appear
about 30 seconds after it?
YES
Measure at the multi-center display
connector C-52.
D
Ignition switch: ACC
D
Voltage between terminal (25), (26)
and body earth
OK: System voltage
NG
Repair fuse or harness.
NO
Disconnect multi-center display con-
nector C-53.
D
Ignition switch: ACC
D
Measure waveform at terminal (7),
(8), (17) of harness connector with
an oscilloscope.
OK: Hi: 4 – 5 V, Lo: 0 – 1 V,
pulse signal
OK
Replace the multi-center display.
NG
NG
Repair
Check the harness between audio C-54
and multi-center display C-53 connector.
OK
Does the sound turn on/off when the
audio VOL/POWER switch operated?
NO
NG
Repair fuse or harness.
YES
OK
Measure at audio unit connector C-53.
D
Ignition switch: ACC
D
Voltage between terminal (10), (11)
and body earth
OK: System voltage
Replace the audio unit.
NG
OK
Replace the DIN cable.
Replace the navigation unit.
Check the DIN cable between audio
and navigation unit.
NG
Repair
OK
Check the harness between audio C-54
and multi-center display C-52 connec-
tor.
NG
OK
Replace the DIN cable.
Check the DIN cable between audio
and navigation unit.
To next page
OK
CHASSIS ELECTRICAL –
Multi-Center Display <High Grade>
54A-98
From previous page
Disconnect DIN 20-pin connector from
the navigation unit.
D
Ignition switch: ACC
D
Measure waveforms of terminal (8),
(15), (17) of navigation unit
connector with an oscilloscope.
OK: 2 Vpp (AC) 15.75kHz video
signal
OK
NG
Connect the disconnected connector.
Measure at the multi-center display
connector C-53.
D
Ignition switch: ACC
D
Measure waveforms of terminal (1),
(2), (13) of navigation unit connector
with an oscilloscope.
OK: 2 Vpp (AC) 15.75kHz video
signal
NG
OK
Replace the audio unit.
NO
YES
Replace the navigation unit.
Does the sound turn on/off when the
audio VOL/POWER switch operated?
NG
OK
Replace the multi-center display.
Turn off the ignition key and turn to ACC
position again.
Does the buzzer sound “PiPi, PiPi, PiPi”
after about 30 seconds?
NG
Repair fuse or harness.
OK
Measure at the navigation unit connec-
tor C-50.
D
Ignition switch: ACC
D
Voltage between terminal (5), (6)
and body earth
OK: System voltage
Replace the audio unit.
NG
Repair fuse or harness.
OK
Replace the audio unit.
Measure at audio unit connector C-11.
D
Ignition switch: ACC
D
Voltage between terminal (10), (11)
and body earth
OK: System voltage
CHASSIS ELECTRICAL –
Multi-Center Display <High Grade>
54A-99
INSPECTION PROCEDURE 2
TAPE/CD, UML switches do not work. (Display appears.)
NG
Repair
OK
Does the audio sound turn on or off
when operate VOL/POWER switch?
NO
NG
Repair fuse or harness.
YES
Check the harness between audio C-54
and multi-center display B-09 connector.
NG
OK
OK
NG
Check the DIN cable between audio
and navigation unit.
OK
Are the result of key checking (audio
switch checking in the service function)
normal?
NO
YES
NO
Malfunction of operation switch.
Replace the audio unit.
Replace the navigation unit.
NO
YES
YES
NO
Check the connector of CD changer and
DIN connector between navigation unit
and CD changer.
Is a CD changer connected?
Check connectors: C-11, C-53, C-54
and DIN connectors between audio and
navigation unit
Replace the audio unit.
Measure at audio unit connector C-11.
D
Ignition switch: ACC
D
Voltage between terminal (10), (11)
and body earth
OK: System voltage
Repair
Replace the DIN cable.
YES
Check again after program-loading is
done. If same error happen, replace
navigation unit.
Insert a map CD-ROM. Does the mes-
sage “loading the program” appear?
YES
NO
Replace the navigation unit.
Does the sound change in accordance
with the switch operation?
Replace the audio unit.
Does the navigation screens appear
when NAVI switch is pressed?
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