2005 MITSUBISHI 380 fuse

CENTRALISED JUNCTION
CIRCUIT DIAGRAMS90-15
NO. POWER SUPPLY
CIRCUITNAME RATED
CAPACITY (A)HOUSING
COLOURLOAD CIRCUIT
1 Fusible link No.1 Fuse 30 Green Rear window demister
2 30 Green Blower motor and resistor
3
4
5 15 Blue Accessory socket
6 15 Blue Data link connector and ETACS-ECU
7 Ignition switch (ACC) 15 Blue ETACS-ECU
8
9 Ignition switch (IG2) 7.5 Brown Sunroof assembly
10 Ignition switch (ACC) 7.5 Brown Remote controlled mirror
11
12
13 Ignition switch (IG1) 7.5 Brown Fuel pump relay and Engine ECU
14 Ignition switch (ACC) 20 Yellow Windscreen wiper
15 Fusible link No.1
(Fuse No.5 in junction
block)7.5 Brown Remote controlled mirror
16 Ignition switch (IG2) 7.5 Brown A/C compressor clutch relay,
A/C-ECU, blower relay, condenser
fan motor, fan control relay,
front-ECU, outside/inside air selection
damper control motor and rear
window defogger relay
17 Ignition switch (IG1)
18 7.5 Brown A/T control relay, input shaft speed
sensor, output shaft speed sensor,
Engine ECU, rear combination lamp
and SRS-ECU
19 7.5 Brown ABS-ECU, ABS/TCL-ECU, column
switch, combination meter,
ETACS-ECU, multi-center display unit
and SRS-ECU
20 10 Red Ignition coil
21
22
23 Fusible link No.5 20 Yellow Sunroof assembly
24

70-1
GROUP 70
COMPONENT
LOCATIONS
CONTENTS
FUSIBLE LINK, FUSE AND IOD OR
STORAGE CONNECTOR . . . . . . . . .70-2
GROUNDING CABLE . . . . . . . . . . . .70-3
GROUNDING . . . . . . . . . . . . . . . . . . .70-4
RELAY . . . . . . . . . . . . . . . . . . . . . . . .70-6INSPECTION TERMINAL . . . . . . . . . .70-8
SENSOR . . . . . . . . . . . . . . . . . . . . . . .70-8
CONTROL UNIT . . . . . . . . . . . . . . . . .70-14
OTHER DEVICES . . . . . . . . . . . . . . . .70-18
SOLENOID AND SOLENOID VALVE70-17

FUSIBLE LINK, FUSE AND IOD OR STORAGE CONNECTOR
COMPONENT LOCATIONS70-2
FUSIBLE LINK, FUSE AND IOD OR STORAGE
CONNECTOR
M1701000100380
NAME SYMBOL NAME SYMBOL
Fuses No.1 to 24 (Passenger
compartment)C Fusible link No.27 (Engine
compartment)A
Fuses No.6 to 25 (Engine
compartment)B Fusible links No.1 to 5 (Engine
compartment)B
IOD or storage connector B

00E-1
GROUP 00E
GENERAL

CONTENTS
HARNESS CONNECTOR
INSPECTION . . . . . . . . . . . . . . . . . . .00E-2
HOW TO DIAGNOSE . . . . . . . . . . . . .00E-2
HOW TO DIAGNOSE . . . . . . . . . . . . . . . . . 00E-2
TROUBLESHOOTING STEPS . . . . . . . . . . 00E-3
INFORMATION FOR DIAGNOSIS . . . . . . . 00E-3
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . 00E-4INSPECTION INSTRUMENTS . . . . . . . . . . 00E-5
CHECKING FUSES . . . . . . . . . . . . . . . . . . . 00E-6
CHECKING SWITCHES . . . . . . . . . . . . . . . 00E-7
CHECKING RELAYS . . . . . . . . . . . . . . . . . 00E-8
CABLES AND WIRES CHECK . . . . . . . . . . 00E-9
BATTERY HANDLING . . . . . . . . . . . . . . . . 00E-9
GENERAL ELECTRICAL SYSTEM CHECK00E-9

HOW TO DIAGNOSE
GENERAL 00E-4
INSPECTIONM1001004600139
1. Sight and sound checks
Check relay operation, blower motor rotation, light
illumination, etc. Listen for a "click" when some relay covers
are pushed down.
2. Simple checks
For example, if a headlight does not come on and a faulty
fuse or poor grounding is suspected, replace the fuse with a
new one. Or use a jumper wire to ground the light to the
body. Determine which part(s) is/are responsible for the
problem.
3. Checking with instruments
Use an appropriate instrument in an adequate range and
read the indication correctly.

HOW TO DIAGNOSE
GENERAL 00E-6
5. Ohmmeter
An ohmmeter is used to check continuity or measure
resistance of a switch or coil. If the measuring range has
been changed, the zero point must be adjusted before
measurement.
CHECKING FUSESM1001005000044
A blade type fuse has test taps provided to allow checking of
the fuse itself without removing it from the fuse block. The fuse
is okay if the test light comes on when its one lead is connected
to the test taps (one at a time) and the other lead is grounded.
Remember to turn the ignition switch to ON to ensure all cir-
cuits are live.
CAUTIONS IN EVENT OF BLOWN FUSE
When a fuse is blown, there are two probable causes. One is
that it is blown due to flow of current exceeding its rating. The
other is that it is blown due to repeated on/off current flowing
through it. Which of the two causes is responsible can be easily
determined by visual check as described below.
1. Fuse blown due to current exceeding rating
The illustration shows the state of a fuse blown due to this
cause. In this case, do not replace the fuse with a new one
hastily since a current heavy enough to blow the fuse has
flowed through it. First, check the circuit for shorts and check
for abnormal electric parts. After correcting shorts or
replacing parts, use only a fuse of the same capacity as a
replacement. Never use a fuse of larger capacity than the
original fuse. If a larger capacity fuse is used, electric parts
or wiring could be damaged, or could start a fire.
2. Fuse blown due to repeated turning current on and off
The illustration shows the state of a fuse blown due to
repeated current on/off. Normally, this type of problem
occurs after a fairly long period of use and is less frequent
than above. In this case, simply replace with a new fuse of
the same capacity.

HOW TO DIAGNOSE
GENERAL 00E-10
1. VOLTAGE CHECK
(1) Ground one lead wire of the test light. If a voltmeter is
used instead of the test light, ground the grounding side
lead wire.
(2) Connect the other lead wire of the test light to the power
side terminal of the switch connector. The test light
should come on or the voltmeter should indicate a
voltage.
(3) Then, connect the test light or voltmeter to the motor
connector. The test light should not come on, or the
voltmeter should indicate no voltage. When the switch is
turned ON in this state, the test light should come on, or
the voltmeter should indicate a voltage, with the motor
starting to run.
(4) The circuit illustrated here is normal. If there is any
problem, such as the motor failing to run, check voltages
beginning at the connector nearest to the motor until the
faulty part is identified.
2. SHORT-CIRCUIT CHECK
Because the fuse has blown, it is probable that there is a
short circuit. Follow the procedures below to narrow down
the short-circuit location.
STEP 1. Remove the blown fuse and connect the test light
across the fuse terminals (Circuit switch: OFF).
Q: Does the test light illuminate?
YES : Short-circuit exists between the fuse block and the
switch. Diagnose the harness between the fuse block
and the switch.
NO : Go to Step 2.

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