CHARGING SYSTEM
ENGINE ELECTRICAL
16-9
WAVEFORM CHECK USING AN OSCILLOSCOPE
M1161001200124
MEASUREMENT METHOD
Connect the oscilloscope special patterns pick-up to
the alternator "B" terminal.
STANDARD WAVEFORM
Observation Conditions
NOTE:
The voltage waveform of the alternator "B" terminal
can undulate as shown in the illustration. This
waveform is produced when the regulator operates
according to fluctuations in the alternator load
(current), and is normal for the alternator. In addition,
when the voltage waveform reaches an excessively
high value (approximately 2 V or higher at idle), it
often indicates an open circuit due to a brown fuse
between alternator "B" terminal and battery, but not a
defective alternator.
AK100002
Alternator
"B" terminal
CH1
AC
Function
Special pattern
Pattern height
Variable
Variable knob
Adjust while viewing the waveform.
Pattern selector
Raster
Engine speed
Curb idle speed
AKX00189
0.4
(V)
0.2
0
–
0.2
–
0.4
Voltage at
alternator
"B" terminal
Time
AG
AKX00190
Содержание Lancer 2004
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Страница 139: ...35 1 GROUP 35 SERVICE BRAKES CONTENTS BASIC BRAKE SYSTEM 35A ANTI SKID BRAKING SYSTEM ABS 35B ...
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Страница 423: ...23 1 GROUP 23 AUTOMATIC TRANSMISSION CONTENTS AUTOMATIC TRANSMISSION FF 23A AUTOMATIC TRANSMISSION OVERHAUL 23B ...
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Страница 425: ...22 1 GROUP 22 MANUAL TRANSMISSION CONTENTS MANUAL TRANSMISSION FF 22A MANUAL TRANSMISSION OVERHAUL 22B ...
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Страница 427: ...21 1 GROUP 21 CLUTCH CONTENTS CLUTCH 21A CLUTCH OVERHAUL 21B ...
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Страница 481: ...00 1 GROUP 00 GENERAL CONTENTS GENERAL 00 GENERAL ELECTRICAL 00E ...
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