Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Mitsubishi Eclipse & Spyder 2000-2006 Approved Mitsubishi Eclipse & Spyder 2000-2002 16
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16-1
GROUP 16
ENGINE
ELECTRICAL
CONTENTS
CHARGING SYSTEM . . . . . . . . 16-3 IGNITION SYSTEM . . . . . . . . . 16-32
GENERAL DESCRIPTION . . . . . . 16-3 GENERAL DESCRIPTION . . . . . . . 16-32
SPECIAL TOOL . . . . . . . . . . . . . . . 16-4 SPECIAL TOOLS . . . . . . . . . . . . . . 16-33
CHARGING SYSTEM DIAGNOSIS 16-4 ON-VEHICLE SERVICE . . . . . . . . . 16-34
SPARK PLUG CABLE TEST . . . . . . . . . 16-34
ON-VEHICLE SERVICE. . . . . . . . . 16-6 IGNITION COIL CHECK . . . . . . . . . . . . 16-34
GENERATOR OUTPUT LINE VOLTAGE IGNITION COIL POWER TRANSISTOR
DROP TEST . . . . . . . . . . . . . . . . . . . . . 16-6 CONTINUITY CHECK . . . . . . . . . . . . . . 16-35
OUTPUT CURRENT TEST . . . . . . . . . . 16-8 IGNITION FAILURE SENSOR CHECK . 16-36
REGULATED VOLTAGE TEST. . . . . . . 16-10 SPARK PLUG CABLE RESISTANCE
WAVE PATTERN CHECK USING AN CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . 16-36
OSCILLOSCOPE. . . . . . . . . . . . . . . . . . 16-11 SPARK PLUG TEST . . . . . . . . . . . . . . . 16-36
SPARK PLUG CHECK AND CLEANING 16-37
GENERATOR ASSEMBLY . . . . . . 16-14 CAMSHAFT POSITION SENSOR CHECK 16-37
REMOVAL AND INSTALLATION . . . . . 16-14 CRANK ANGLE SENSOR CHECK . . . . 16-37
DISASSEMBLY AND ASSEMBLY. . . . . 16-16 IGNITION SECONDARY VOLTAGE
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-18 WAVE PATTERN CHECK USING
AN OSCILLOSCOPE . . . . . . . . . . . . . . . 16-38
IGNITION PRIMARY VOLTAGE WAVE
STARTING SYSTEM . . . . . . . . . 16-21
PATTERN CHECK . . . . . . . . . . . . . . . . . 16-45
GENERAL DESCRIPTION . . . . . . 16-21 IGNITION COIL. . . . . . . . . . . . . . . . 16-49
REMOVAL AND INSTALLATION
STARTING SYSTEM DIAGNOSIS 16-22 <2.4L ENGINE> . . . . . . . . . . . . . . . . . . . 16-49
STARTER MOTOR ASSEMBLY . . 16-24 DISTRIBUTOR ASSEMBLY. . . . . . 16-50
REMOVAL AND INSTALLATION . . . . . 16-24 REMOVAL AND INSTALLATION
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-25 <3.0L ENGINE> . . . . . . . . . . . . . . . . . . . 16-50
DISASSEMBLY AND ASSEMBLY. . . . . 16-28 DISASSEMBLY AND ASSEMBLY . . . . . 16-51
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-30
16-2
CAMSHAFT POSITION SENSOR . 16-51 REMOVAL AND INSTALLATION
<3.0L ENGINE> . . . . . . . . . . . . . . . . . . . 16-55
REMOVAL AND INSTALLATION
<2.4L ENGINE> . . . . . . . . . . . . . . . . . . . 16-51
SPECIFICATIONS . . . . . . . . . . 16-56
CRANKSHAFT POSITION SENSOR 16-52
REMOVAL AND INSTALLATION FASTENER TIGHTENING
<2.4L ENGINE> . . . . . . . . . . . . . . . . . . . 16-52 SPECIFICATIONS . . . . . . . . . . . . . 16-56
REMOVAL AND INSTALLATION
<3.0L ENGINE> . . . . . . . . . . . . . . . . . . . 16-53
GENERAL SPECIFICATIONS . . . . 16-57
KNOCK SENSOR . . . . . . . . . . . . . 16-54
SERVICE SPECIFICATIONS . . . . . 16-57
REMOVAL AND INSTALLATION
<2.4L ENGINE> . . . . . . . . . . . . . . . . . . . 16-54
ENGINE ELECTRICAL 16-3
CHARGING SYSTEM
.
CH AR G IN G SYSTEM
GENERAL DESCRIPTION
M1161000100072
The charging system charges the battery with the
generator output to keep the battery charged at a
constant level during varying electrical load.
Operation
When the ignition switch is turned on, current flows in
VOLTAGE the field coil and initial excitation of the field coil
occurs.
When the stator coil begins to generate power after
APPROXIMATELY
the engine is started, the field coil is excited by the
14.4V output current of the stator coil.
The generator output voltage rises as the field
current increases and it falls as the field current
decreases. When the battery positive voltage
TIME
AKX00183 AB
(generator S terminal voltage) reaches a regulated
voltage of approximately 14.4V, the field current is
Rotation of the excited field coil generates AC cut off. When the battery positive voltage drops
voltage in the stator. below the regulated voltage, the voltage regulator
This alternating current is rectified through diodes to regulates the output voltage to a constant level by
DC voltage having a waveform shown in the controlling the field current.
illustration at left. In addition, when the field current is constant, the
The average output voltage fluctuates slightly with generator output voltage rises as the engine speed
the generator load condition. increases.
<2.4L ENGINE> <3.0L ENGINE>
GENERATOR GENERATOR
B B
STATOR STATOR
COIL COIL
ECM ECM
PCM PCM
G G
FIELD COIL S FIELD COIL S
L + L
+
FR IGNITION FR IGNITION
CHARGING SWITCH BATTERY CHARGING SWITCH BATTERY
VOLTAGE REGULATOR VOLTAGE REGULATOR
WARNING WARNING
LIGHT LIGHT
AK000621AC
TSB Revision
16-4 ENGINE ELECTRICAL
CHARGING SYSTEM
SPECIAL TOOLS
M1161000600055
TOOL TOOL NUMBER AND SUPERSESSION APPLICATION
NAME
MB991502 MB991496-OD Checking of engine idle
Scan tool (MUT-II) speed
B991502
MB991519 Tool not available Checking of generator (S
Generator harness terminal voltage)
connector
CHARGING SYSTEM DIAGNOSIS
M1161000700063
TROUBLESHOOTING HINTS
1. Charging warning light does not go on when the ignition
switch is turned to ON, before the engine starts.
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