Mitsubishi Pajero Pinin 1999 - Page 825

CHASSIS ELECTRICAL ± Multi-Center Display <High Grade>
54A-98
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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 ªPiPi, PiPi, PiPiº
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