battery MITSUBISHI LANCER 2005 User Guide
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 2005, Model line: LANCER, Model: MITSUBISHI LANCER 2005Pages: 788, PDF Size: 45.98 MB
Page 71 of 788
CHARGING SYSTEM
ENGINE ELECTRICAL16-7
REGULATED VOLTAGE TESTM1161001100354
This test determines whether the voltage regulator
correctly controlling the alternator output voltage.
1. Always be sure to check the following before the
test.
•Alternator installation
•Check that the battery installed in the vehicle is
fully charged.
(Refer to GROUP 54A − Battery − On-vehicle
Service − Charging P.54A-4).
•Drive belt tension
(Refer to GROUP 11A − On-vehicle Service <4G1>
P.11A-7 or GROUP 11C − On-vehicle Service
<4G6> P.11C-7.)
•Fusible link
•Abnormal noise from the alternator while the
engine is running
2. Turn the ignition switch to the "LOCK" (OFF)
position.
3. Disconnect the negative battery cable.
4. Use the special tool Alternator test harness
(MB991519) to connect a digital voltmeter
between the alternator "S" terminal and earth
[Connect the (+) lead of the voltmeter to the "S"
terminal, and then connect the (-) lead of the
voltmeter to a secure earth or to the battery (-)
terminal].
5. Connect a clamp-type DC test ammeter with a
range of 0 − 120 A to the alternator "B" terminal
output wire.NOTE: The way of disconnecting the alternator
output wire and of connecting the ammeter is
possibly not found the problem that the output
current is dropping due to the insufficient
connection between terminal "B" and the output
wire.
6. Reconnect the negative battery cable.
7. Connect a tachometer or the MUT-II/III (Refer to
GROUP 11A − On-vehicle Service − Idle speed
check <4G1> P.11A-11 or GROUP 11C −
On-vehicle Service − Idle speed check <4G6>
P.11C-11).
8. Turn the ignition switch to the "ON" position and
check that the reading on the voltmeter is equal to
the battery voltage.
NOTE: If the voltage is 0 V, the cause is probably
an open circuit in the wire or fusible link between
the alternator "S" terminal and the battery (+)
terminal.
9. Turn all lamps and accessories off.
10.Start the engine.
11.Increase the engine speed to 2,500 r/min.
12.Read the value displayed on the voltmeter when
the alternator output current alternator becomes
10 A or less.
13.If the voltage reading conforms to the value in the
voltage regulation, then the voltage regulator is
operating normally.
AK300727AB
BatteryIgnition switch
Engine-ECU
Engine-A/T-ECU Ammeter (clamp-type)Load
Black MB991519
Voltmeter (digital-type) Red
YellowBlueAlternator B
FR
L
S
G
Page 72 of 788
CHARGING SYSTEM
ENGINE ELECTRICAL16-8
If the voltage is not within the standard value,
there is a malfunction of the voltage regulator or of
the alternator.
14.After the test, lower the engine speed to the idle
speed.
15.Turn the ignition switch to the "LOCK" (OFF)
position.
16.Remove the tachometer or the MUT-II/III.17.Disconnect the negative battery cable.
18.Disconnect the ammeter and voltmeter.
19.Connect the alternator output wire to the
alternator "B" terminal.
20.Remove the special tool, and return the connector
to the original condition.
21.Connect the negative battery cable.
Voltage Regulation Table
Standard value:
Inspection terminal Voltage regulator ambient
temperature °CVoltage V
Terminal "S"
−2014.2 − 15.4
20 13.9 − 14.9
60 13.4 − 14.6
80 13.1 − 14.5
Page 73 of 788
CHARGING SYSTEM
ENGINE ELECTRICAL16-9
WAVEFORM CHECK USING AN OSCILLOSCOPEM1161001200124
MEASUREMENT METHODConnect 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" terminalCH1
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
Page 78 of 788
Page 83 of 788
STARTING SYSTEM
ENGINE ELECTRICAL16-19
STARTING SYSTEM
GENERAL INFORMATIONM1162000100202
If the ignition switch is turned to the "START"
position, current flows in the pull-in and holding coils
provided inside magnetic switch, attracting the
plunger, When the plunger is attracted, the lever
connected to the plunger is actuated to engage the
starter clutch.
On the other hand, attracting the plunger will turn on
the magnetic switch, allowing the "B" terminal and
"M" terminal to conduct. Thus, current flows to
engage the starter motor.When the ignition switch is returned to the "ON"
position after starting the engine, the starter clutch is
disengaged from the ring gear.
An overrunning clutch is provided between the pinion
and the armature shaft, to prevent damage to the
starter.
SYSTEM DIAGRAM
AK202970
Pull-in coilHolding coil
Plunger
Lever
Pinion gear Overrunning clutch
Yo k e BrushArmature Ignition switch
Battery +
–
AB
B
M
S
Page 85 of 788
STARTING SYSTEM
ENGINE ELECTRICAL16-21
STARTER MOTOR ASSEMBLY
REMOVAL AND INSTALLATION <4G1>M1162001000628
REMOVAL SERVICE POINT
<> SHIFT CABLE AND SHIFT CABLE
BRACKET ASSEMBLY
Remove the shift cable bracket installation bolt with
the shift cable installed on the shift cable bracket,
and remove the shift cable and shift cable bracket
assembly from the transmission.
<> SHIFT CABLE CONNECTION
REMOVAL
Disengage the transmission, and remove the shift
cable assembly from the transmission.
<
Remove the starter assembly from above the
vehicle.
Pre-removal and Post-installation Operation
•Air Cleaner Assembly Removal and Installation (Refer to
GROUP 15 P.15-3).
•Battery and Battery Tray Removal and Installation
AC303962AB
1
1 2
3
56
7
4
30 ± 3 N·m18 ± 3 N·m
12 ± 2 N·m
Removal steps
1. Shift cable connection
<>2. shift cable and shift cable bracket
assembly
<>3. Shift cable connection 4. Starter connector and terminal
5. Harness bracket
6. Harness bracket <
Page 87 of 788
STARTING SYSTEM
ENGINE ELECTRICAL16-23
STARTER MOTOR ASSEMBLY INSPECTIONM1162001100205
PINION GAP ADJUSTMENT
1. Disconnect the field coil wire from the M-terminal
of the magnetic switch.
2. Connect a 12-volt battery between the S-terminal
and M-terminal.
CAUTION
This test must be performed quickly (in less than
10 seconds) to prevent the coil from burning.
3. Set the switch to "ON", and the pinion will move
out.
4. Check the pinion-to-stopper clearance (pinion
gap) with a feeler gauge.
Standard value: 0.5 − 2.0 mm5. If the pinion gap is out of specification, adjust by
adding or removing gasket(s) between the
magnetic switch and front bracket.
MAGNETIC SWITCH PULL-IN TEST
1. Disconnect the field coil wire from the M-terminal
of the magnetic switch.
CAUTION
This test must be performed quickly (in less than
10 seconds) to prevent the coil from burning.
2. Connect a 12-volt battery between the S-terminal
and M-terminal.
3. If the pinion moves out, the pull-in coil is good. If it
doesn't, replace the magnetic switch.
AK300648AB
<4G1>
Switch
S
M
Wire
Battery Starter
motor B
AKX01238
<4G6>
B MS
batterySwitch
Starter
motorWire
AG
AKX00198
Stopper
Pinion gap Pinion
AC
AKX00199
AK300649AB
<4G1>
S
M
Wire
Battery Starter
motor B
AKX01242
<4G6>
S
B M
Battery
Starter
motorWire
AF
Page 88 of 788
STARTING SYSTEM
ENGINE ELECTRICAL16-24
MAGNETIC SWITCH HOLD-IN TEST
1. Disconnect the field coil wire from the M-terminal
of the magnetic switch.
CAUTION
This test must be performed quickly (in less than
10 seconds) to prevent the coil from burning.
2. Connect a 12-volt battery between the S-terminal
and body.
3. Manually pull out the pinion as far as the pinion
stopper position.
4. If the pinion remains out, everything is in order. If
the pinion moves in, the hold-in circuit is open.
Replace the magnetic switch.
FREE RUNNING TEST
1. Place the starter motor in a vise equipped with
soft jaws and connect a fully-charged 12-volt
battery to the starter motor as follows:
2. Connect a test ammeter (100-ampere scale) and
carbon pile rheostat in series between the battery
(+) terminal and starter motor terminal.
3. Connect a voltmeter (15-volt scale) across the
starter motor.
4. Rotate the rheostat to full-resistance position.
5. Connect the battery cable from the battery (-)
terminal to the starter motor body.
6. Adjust the rheostat until the battery voltage shown
on the voltmeter is 11 V.
7. Confirm that the maximum amperage is within the
specifications and that the starter motor turns
smoothly and freely.
Current:
<4G1> maximum 95 Amps
<4G6> maximum 90 Amps
AK300650AB
<4G1>
S
BMWire
Battery Starter
motor
AKX01244
<4G6>
S
B M
Battery
Starter
motorWire
AF
AK300651AB
<4G1>
S
A M
V BCarbon-pile rheostat
Battery
VoltmeterAmmeter
Starter
motor
AKX01246
<4G6>
S
M
BAmmeter
Carbon-pile
rheostat
Battery
Starter
motor
Voltmeter
AF
A
V
Page 89 of 788
STARTING SYSTEM
ENGINE ELECTRICAL16-25
MAGNETIC SWITCH RETURN TEST1. Disconnect the field coil wire from the M-terminal
of the magnetic switch.
CAUTION
This test must be performed quickly (in less than
10 seconds) to prevent the coil from burning.
2. Connect a 12-volt battery between the M-terminal
and body.
WARNING
Be careful not to get your fingers caught
when pulling out the pinion.
3. Pull the pinion out and release. If the pinion
quickly returns to its original position, everything is
operating properly. If it doesn't, replace the
magnetic switch.
AK300652AB
<4G1>
S
BMWire
Battery Starter
motor
AKX01248
<4G6>
S
B M
Battery
Starter
motorWire
AF
Page 94 of 788
IGNITION SYSTEM
ENGINE ELECTRICAL16-30
IGNITION SYSTEM
GENERAL INFORMATIONM1163000100294
This system is equipped with two ignition coils (A and
B) with built-in power transistors for the No. 1 and
No. 4 cylinders and the No. 2 and No. 3 cylinders
respectively.
Interruption of the primary current flowing in the
primary side of ignition coil A generates a high
voltage in the secondary side of ignition coil A. The
high voltage thus generated is applied to the spark
plugs of No. 1 and No. 4 cylinders to generate
sparks. At the time that the sparks are generated at
both spark plugs, if one cylinder is at the
compression stroke, the other cylinder is at the
exhaust stroke, so that ignition of the compressed
air/fuel mixture occurs only for the cylinder which is
at the compression stroke.
In the same way, when the primary current flowing in
ignition coil B is interrupted, the high voltage thus
generated is applied to the spark plugs of No. 2 and
No. 3 cylinders.The engine-ECU
turns the two power transistors inside the ignition
coils alternately on and off. This causes the primary
currents in the ignition coils to be alternately
interrupted and allowed to flow to fire the cylinders in
the order 1-3-4-2.
The engine-ECU
determines which ignition coil should be controlled
by means of the signals from the camshaft position
sensor which is incorporated in the camshaft and
from the crank angle sensor which is incorporated in
the crankshaft. It also detects the crankshaft position
in order to provide ignition at the most appropriate
timing in response to the engine operation
conditions. It also detects the crankshaft position in
order to provide ignition at the most appropriate
timing in response to the engine operation
conditions.
When the engine is cold or operated at high
altitudes, the ignition timing is slightly advanced to
provide optimum performance.
When the automatic transmission shifts gears, the
ignition timing is also retarded in order to reduce
output torque, thereby alleviating shifting shocks.
SYSTEM DIAGRAM
AK101074
Air flow sensor
<4G6> MAP sensor <4G1>
Intake air temperatur
sensor
Engine coolant
temperature sensor
Camshaft position
sensor
Crank angle sensor
Barometric pressure
sonsor <4G6>
Detonatoin sensor
Ignition switch-STEngine-A/T-
ECU Engine-ECU
Cylinder No.
23 4
AG
1 Spark plugIgnition coil AIgnition
switch
Battery