light MITSUBISHI 380 2005 Manual PDF

CHARGING SYSTEM
ENGINE ELECTRICAL16-8
10.With the engine running at 2,500 r/min, turn the
headlights and other lights on and off to adjust the
alternator load so that the value displayed on the
ammeter is slightly above 30 A.
Read the voltmeter. Voltage reading at or below
limit value means voltage drop between alternator
and battery is OK.
Limit value: maximum 0.3 V
NOTE: When the alternator output is high and the
value displayed on the ammeter does not
decrease to 30 A, set the value to 40 A. Read the
value displayed on the voltmeter at this time.
In this case the limit value becomes maximum 0.4
V.
Adjust the engine speed by gradually decreasing
it until the value displayed on the ammeter is 30
A. Take a reading of the value displayed on the
voltmeter at this time.11.If the value displayed on the voltmeter is above
the limit value, there is probably a malfunction in
the alternator output wire. Check the wiring
between the alternator "B" terminal and the
positive battery terminal (including fusible link).
If a terminal is not sufficiently tight or if the
harness has become discolored due to
overheating, repair and then test again.
12.After the test, run the engine at idle.
13.Turn off all lights and turn the ignition switch to the
"LOCK" (OFF) position.
14.Disconnect the engine tachometer or diagnostic
tool.
15.Disconnect the negative battery cable.
16.Disconnect the ammeter and voltmeter.
17.Connect the negative battery cable.
18.Run the engine for 10 minutes at an idle.
OUTPUT CURRENT TESTM1161001000670

CHARGING SYSTEM
ENGINE ELECTRICAL16-9
Required Special Tool:
: Diagnostic Tool (MUT-III)
MB991824: V.C.I.
MB991827: MUT-III USB Cable
MB991910: MUT-III Main Harness A
This test determines whether the alternator outputs
normal current. For best results, use a charging sys-
tem tester. If not available, follow the steps below.
Battery posts, terminals and related acces-
sories contain lead and lead compounds.
WASH HANDS AFTER HANDLING.
1. Before the test, always be sure to check the
following.
Alternator installation
Battery (Refer to GROUP 54A, Chassis Electrical
Battery On-vehicle Service Battery Check
P.54A-5.)
NOTE: The battery to be used should be slightly
discharged. The load in a fully-charged battery
will be insufficient and the test may not be able to
be carried out correctly.
Alternator drive belt tension (Refer to GROUP 00,
General
Maintenance Service Drive Belts
(For Alternator, Power Steering Pump and Air
Conditioning) (Check) P.00-39.)
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.
Never use clips to connect the wire. Loose
connections (for example, using clips) will
lead to a serious accident because of high
current.
4. Connect a clamp-type DC test ammeter with a
range of 0
120 A to the alternator "B" terminal
output wire.
5. Connect a voltmeter with a range of 0
20 V
between the alternator "B" terminal and ground.
(Connect the positive lead of the voltmeter to the
"B" terminal, and then connect the negative lead
of the voltmeter to ground.)
6. Connect the negative battery cable.
7. Connect an engine tachometer or diagnostic tool.
8. Leave the hood open.9. Check to be sure that the reading on the voltmeter
is equal to the battery positive voltage.
NOTE: If the voltage is 0 V, the cause is probably
an open circuit in the wire or fusible link between
the alternator "B" terminal and the battery positive
terminal or malfunctioning voltmeter.
10.After turning on the headlights, start the engine.
NOTE: Because the current from the battery will
soon drop after the engine is started, step 11
should be carried out as quickly as possible in
order to obtain the maximum current output value.
11.Immediately after setting the headlights to high
beam and turning the heater blower switch to the
highest position, increase the engine speed to
2,500 r/min and read the maximum current output
value displayed on the ammeter.
Limit value: 70 % of nominal current output
NOTE: For the nominal current output, refer to the
Alternator Specifications.
NOTE: The current output value will depend on
the electrical load and the temperature of the
alternator body.
NOTE: If the electrical load is small while testing,
the specified level of current may not be output
even though the alternator is normal. In such
cases, increase the electrical load by leaving the
headlights turned on for some time to discharge
the battery or by using the lighting system in
another vehicle, and then test again.
NOTE: The specified level of current also may not
be output if the temperature of the alternator body
or the ambient temperature is too high. In such
cases, cool the alternator and then test again.
12.The reading on the ammeter should be above the
limit value. If the reading is below the limit value
and the alternator output wire is normal, remove
the alternator from the engine and check the
alternator.
13.Run the engine at idle speed after the test.
14.Turn the ignition switch to the "LOCK" (OFF)
position.
15.Disconnect the engine tachometer or diagnostic
tool.
16.Disconnect the negative battery cable.
17.Disconnect the ammeter and voltmeter .
18.Connect the negative battery cable.
19.Run the engine for 10 minutes at an idle.

CHARGING SYSTEM
ENGINE ELECTRICAL16-10
REGULATED VOLTAGE TESTM1161001100666
Required Special Tools:
: Diagnostic Tool (MUT-III)
MB991824: V.C.I.
MB991827: MUT-III USB Cable
MB991910: MUT-III Main Harness A
MB998467: Alternator Harness Connector
This test determines whether the voltage regulator is
correctly controlling the alternator output voltage.
Battery posts, terminals and related acces-
sories contain lead and lead compounds.
WASH HANDS AFTER HANDLING.
1. Always be sure to check the following before the
test:
Alternator installation
Check to be sure that the battery installed in the
vehicle is fully charged. (Refer to GROUP 54A,
Chassis Electrical
Battery On-vehicle Service
Battery Check P.54A-5.)
Alternator drive belt tension (Refer to GROUP 00,
General
Maintenance Service Drive Belts
(For Alternator, Power Steering Pump and Air
Conditioning) (Check) P.00-39.)
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 harness
connector: MB998467) to connect a digital-type
voltmeter between the alternator "S" terminal and
ground. (Connect the positive lead of the
voltmeter to the "S" terminal, and then connect the
negative lead of the voltmeter to a secure ground
or to the negative battery terminal.)
5. Connect a clamp-type DC test ammeter with a
range of 0
120 A to the alternator "B" terminal
output wire.
6. Reconnect the negative battery cable.
7. Connect an engine tachometer, or diagnostic tool.
8. Turn the ignition switch to the "ON" position and
check that the reading on the voltmeter is equal to
the battery positive 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 positive
terminal or malfunctioning voltmeter.
9. Check to be sure that all lights and accessories
are off.
10.Start the engine.

CHARGING SYSTEM
ENGINE ELECTRICAL16-12
NOTE: The voltage waveform of the alternator "B" terminal can
undulate as shown at left. This waveform is produced when the
regulator operates according to fluctuations in the alternator
load (current), and is normal for the alternator.
If the ripple height is abnormally high (approximately 2 V or
more during idling), the wires between the alternator "B" termi-
nal and the battery have broken due to fuse blowing, etc. The
alternator is usually operating properly.
.
ABNORMAL WAVEFORMS EXAMPLES
NOTE: The size of the waveform patterns can differ greatly,
depending on the adjustment of the variable knob on the oscil-
loscope.
NOTE: Identification of abnormal waveforms is easier when
there is a large output current (regulator is not operating).
(Waveforms can be observed when the headlights are illumi-
nated.)
NOTE: Check the conditions of the alternator malfunction light
(illuminated/not illuminated) also, and carry out a total check.
ABNORMAL WAVEFORMS
Example 1
PROBABLE CAUSE: Open circuit in diode

IGNITION SYSTEM
ENGINE ELECTRICAL16-30
IGNITION SYSTEM
GENERAL DESCRIPTIONM1163000100528
This system is provided with six ignition coils with
built-in ignition power transistors for each of the cylin-
ders.
Interruption of the primary current flowing in the pri-
mary side of ignition coil generates a high voltage in
the secondary side of ignition coil.
The engine control unit (ECU) controls the three
ignition power transistors to turn them 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 1-2-3-4-5-6.The 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 crankshaft position sensor which is
incorporated in the crankshaft.
It also detects the crankshaft position to provide igni-
tion at the most appropriate timing in response to the
engine operation conditions.
When the engine is cold or operated at high alti-
tudes, the ignition timing is slightly advanced to pro-
vide optimum performance.
SPECIAL TOOLSM1163000600073
TOOL TOOL NUMBER AND
NAMESUPERSESSION APPLICATION
MD998773
Knock sensor wrenchMD998773-01 Knock sensor removal
and installation

REAR BUMPER ASSEMBLY
EXTERIOR51-5
REAR BUMPER ASSEMBLY
REMOVAL AND INSTALLATIONM1511001900427
REMOVAL STEPS
REAR COMBINATION LIGHT
(REFER TO GROUP 54A, REAR
COMBINATION LIGHT P.54A-161).
REAR END TRIM REFER TO
GROUP 52A, TRIMS P.52A-11).
1. REAR SPLASH SHIELD2. TAPPING SCREW
3. REAR BUMPER ASSEMBLY
4. REAR BUMPER CENTER BRACKET
5. REAR BUMPER SIDE BRACKET
6. REAR BUMPER CORES, LH/RH
7. REAR BUMPER REINFORCEMENT REMOVAL STEPS (Continued)

REAR SPOILER
EXTERIOR51-11
REAR SPOILER
REMOVAL AND INSTALLATIONM1511006100147
REMOVAL STEPS
TRUNK LID BUMPER (REFER TO
GROUP 42, TRUNK LID P.42-63).
1. REAR SPOILER ASSEMBLY2PACKING
3 HIGH-MOUNTED STOPLIGHT
(REFER TO GROUP 54A,
HIGH-MOUNTED STOPLIGHT
P.54A-166). REMOVAL STEPS (Continued)

WINDSHIELD WIPER AND WASHER
EXTERIOR51-23
WINDSHIELD WASHER
REMOVAL AND INSTALLATIONM1511008200270
WINDSHIELD WASHER NOZZLE
REMOVAL STEPS
WINDSHIELD WASHER HOSE
CONNECTION
1. WINDSHIELD WASHER NOZZLE
WASHER HOSE REMOVAL STEPS
WINDSHIELD WASHER NOZZLE
CONNECTION
2. WINDSHIELD WASHER HOSEWASHER TANK REMOVAL STEPS
FRONT UNDER COVER RH (REFER
TO P.51-2).
FRONT SPLASH SHIELD RH
MOUNTING CLIPS (REFER TO
GROUP 42, FENDER P.42-10).
FRONT BUMPER (REFER TO
P.51-2).
HEAD LIGHT (REFER TO GROUP
54A, HEADLIGHT P.54A-153).
FRONT WASHER HOSE
CONNECTIONS
3. WASHER TANK ASSEMBLY

HOOD
BODY42-9
REMOVAL SERVICE POINT
.
<<A>> HOOD LOCK RELEASE CABLE REMOVAL
Release the grommet as shown, and pull out the hood lock
release cable in the arrow direction (passenger compartment
side).
NOTE: If you attempt to pull out the hood lock release cable in
the opposite direction, the end of the hood lock release cable
will engage the grommet and prevent cable removal.
REMOVAL
1. HOOD DAMPER
HOOD LATCH AND HOOD LOCK
RELEASE CABLE REMOVAL
STEPS
RADIATOR GRILLE (REFER TO
GROUP 51, RADIATOR GRILLE
P.51-6).
4. HOOD LATCH
SPLASH SHIELD (REFER TO
P.42-10).
FRONT BUMPER ASSEMBLY
(REFER TO GROUP 51, FRONT
BUMPER P.51-2).
HEADLIGHT ASSEMBLY <LH>
(REFER TO GROUP 54A,
HEADLIGHT AND FRONT
COMBINATION LIGHT P.54A-153).
FRONT END STRUCTURE BAR
(REFER TO P.42-84).5. HOOD LOCK RELEASE HANDLE
<<A>>6. HOOD LOCK RELEASE CABLE
HOOD AND HOOD HINGE
REMOVAL STEPS
7. HOOD INSULATOR
8. HOOD WEATHERSTRIP
WINDSHIELD WASHER HOSE,
WINDSHIELD WASHER NOZZLE
(REFER TO GROUP 51,
WINDSHIELD WASHER P.51-23).
9. HOOD
10. GAS STRUTS
FRONT DECK GARNISH (REFER
TO GROUP 51, WINDSHIELD
WIPER P.51-17).
11. HOOD HINGEHOOD LATCH AND HOOD LOCK
RELEASE CABLE REMOVAL
STEPS (Continued)

FENDER
BODY42-10
FENDER
REMOVAL AND INSTALLATIONM1421001900313
Pre-removal and Post-installation Operation
Front Bumper Assembly Removal and Installation (Refer
to GROUP 51, Front Bumper P.51-2).
Front Mud Guard Removal and Installation (Refer to
GROUP 51, Mud Guard P.51-12).
Headlight Removal and Installation (Refer to GROUP
54A, Headlight and Front Combination Light P.54A-153).
REMOVAL STEPS
1. SPLASH SHIELD MOUNTING CLIP
<DRIVER SIDE ONLY>
2. SPLASH SHIELD MOUNTING BOLT
<PASSENGER SIDE ONLY>
3. SPLASH SHIELD
DOOR MIRROR COVER (REFER TO
GROUP 51, DOOR MIRROR
P.51-28).
FRONT DELTA GARNISH (REFER
TO GROUP 51, GARNISHES AND
MOLDING P.51-8).
4. FENDERREMOVAL STEPS (Continued)