2006 MITSUBISHI COLT engine

GENERAL INFORMATION
ENGINE ELECTRICAL16-2
GENERAL INFORMATION
M2160000100038
The electronic device is basically the same as that in
the conventional 4G1 engine.
The employed alternator is a lightweight type in
which the electronic voltage regulator for detecting
the battery voltage is built.
The employed starter motor is a small planetary gear
reduction drive type.
The employed spark plug is a long reach type with
iridium.
The employed ignition coil is a plug top type in which
the powertrain per cylinder is built.

STRUCTURE
CONTROLLER AREA NETWORK (CAN)54C-3
STRUCTURE
M2542000200383
AC204755AC204755AF
Engine-ECU
or
Engine-
CVT-ECUEPS-ECU
M.U.T.-III
ETACS
-ECU
ABS-ECU
or
ASC-ECU
Steering
wheel
sensor G and
yaw rate
sensor
CAN_H
CAN_L Diagnosis
connector
Combination
meter
(incorporating
meter-A/C-ECU)
: Shows sub bus line. : Shows main bus line. Terminal resistor
Terminal resistor Main bus lines
•The CAN bu s line consist s of two lines, CAN_L
and
CAN_H (CAN Low and CAN Hig h , respec
-
tively), as well as two terminal re sistors (A
twisted-p
a ir cable, highly resist ant to noise, is
used for
the communicatio n s line) .
•The CAN bu s line connectin g the two terminal
resist
ors is th e main bus line, an d the CAN bus
line connecting
each ECU is th e su b-bus lin e.
•The terminal resistors are inst alled in the
eng
ine-ECU or eng ine-CVT - ECU
and
combin ation mete r (incorpora t ing
meter-A/C-ECU) to st
abi lize co mmunicatio n sig
-
nals (The terminal resist ance is se t at ap proxi-
mately 120 Ω).
•ECUs are conn ected in th e CAN bus line as fo l-
lows.
•En gine -ECU or e ngine -CVT -ECU

•ABS-ECU or
A
S C-ECU
•G and ya w ra te se nsor
•St e e ring wh eel sensor
•EPS-ECU
•E T ACS-ECU
•Co mbinatio n me ter (in c orpo rating
meter-A/C-ECU)

GENERAL INFORMATION
BODY42-2
GENERAL INFORMATION
M2420000100842
FEATURES
WEIGHT REDUCTION AND HIGH RIGID-
ITY
•Application ranges of high tension steel plate,
antirust steel plate, and uneven thickness steel
plate have been expanded.
•The upper frame outer and front pillar connection
has been strengthened by adopting the upper
frame-to-front pillar brace.
•The radius of each opening corner for the doors
and tailgate has been enlarged.
•Cowl top lower panel and spring house panel are
directly joined for higher rigidity.
•Strut tower bar has been adopted <4G1>.
•A front suspension axle side plate has been
adopted <4G1>.
•The air outlet garnish has been installed to the
hood, improving the sporty image and cooling
efficiency in the engine compartment. <4G1>
REDUCTION OF VIBRATION, NOISE, AND
AERODYNAMIC NOISE
•Straight frame structure has been adopted.
•Curved front floor and uneven thickness steel
plate have been adopted.
•Rigidity of the suspension installation part has
been improved.
IMPROVEMENTS IN SAFETY
•RISE (Reinforced Impact Safety Evolution) has
been used for the main body.
•Features a side door beam to boost safety upon
side impact.
•Direct combination key cylinder and inside lock
cables for the front doors have been adopted to
improve safety upon impact.
IMPROVEMENTS IN OPERATION
QUALITY
•The central door locking system, which
locks/unlocks all the doors and the tailgate, is
adopted.
•"P" position shift linked door-unlock function has
been introduced to the central door locking sys
-
tem(F1C1A).
IMPROVEMENTS OF PRODUCT
PACKAGE AND APPEARANCE
•Rigidity of door sash bottom section has been
improved.
•By improving the engaging sound between the
door latch and striker, the door locking sound
quality has been enhanced.
•UV & heat protect glass has been used for the
windshield.
•UV-reducing glass has been used for the front
door window glasses and rear door window
glasses.
•Privacy glasses have been used for rear door
window glasses, quarter window glasses, and
tailgate window glass (Option).
•Multi-mode keyless entry system (with door mir-
ror retraction/return control function) has been
adopted.
•Protector film has been attached on side sill
.
•Sunroof has been installed (Option).

MANUAL TRANSMISSION
MANUAL TRANSMISSION22-2
MANUAL TRANSMISSION
GENERAL INFORMATIONM2220000100592
Due to the addition of vehicles with M/T, a
"GETRAG" F5MG type transmission has been
adopted.
SPECIFICATIONS
Transmission modelF5MGAF5MGB
Engine model4A94G1
Transmission type5-speed, floor-shift
Transmission gear ratio1st3.3083.538
2nd1.9131.913
3rd1.2581.344
4th0.9431.027
5th0.7630.833
Reverse3.2313.357
Final reduction ratio4.1583.737
Transmission fluidSpecified
lubricantsDia-Queen wide gear oil G-1 SAE 75W-90 API GL-4
Quantity L1.75

IMMOBILIZER SYSTEM
CHASSIS ELECTRICAL54A-5
IMMOBILIZER SYSTEM
M2540003000490
The engine immobilizer system prevents the engine
from starting and immobilizes the vehicle if a key
other than the key registered for that vehicle is used
in an attempt to start the engine after forced entry.
The engine immobilizer system consists of the igni
-
tion key, key ring antenna, immobilizer-ECU,
engine-ECU and engine-CVT-ECU . It
works in the following way and has these functions.
1. With the ignition key turned ON, the transponder
(a small transmitter) integrated in the ignition key
transmits its own encrypted code to the ring
antenna via radio wave.
2. According to the sent encrypted code, the immo-
bilizer-ECU controls the engine-ECU or
engine-CVT-ECU only when the sent
encrypted code agrees with the pre-registered
one.
3. The system is designed to be maintenance-free because the power source for the transponder is
supplied by the immobi lizer-ECU. Three ignition
keys are provided, and up to eight keys can be
registered to one vehicle as needed. More than
one trillion of encrypted code combinations can
be registered, and parts of them are irregularly
changed whenever the ignition key is turned ON.
This feature prevents code copying, resulting in
higher security of the system.
DIAGNOSIS CODE TABLE
Diagnosis code No.Diagnosis item
11Transponder communication system or r adio interference of encrypted code
12Encrypted codes are not the same or are not registered
CONSTRUCTION DIAGRAM
AC306415AD
M.U.T.-III
Ignition
key ring
antenna
Immobilizer-
ECU
Ignition key
Encrypted
code
Transponder Power
(Wireless)
Encrypted code
(Wireless) Control
signal
Engine-ECU
or
engine-CVT-
ECU
MAIN CO MP O N E N TS
Component name Outline of function
Immobilizer-ECU with an
antenna•Supplies electrical power to the transponder integrated in the ignition key,
and transmits random number data.
•Verifies the encrypted code which is sent from the transponder. If the code
is correct, it sends an engine mobili zation signal to the engine-ECU
or engine-CVT-ECU .
TransponderIs power-supplied by the immobilizer-ECU. When the transponder receives
random number data, it processes it an d the encrypted code. Then it transmits
the process result to the immobilizer-ECU.
Engine-ECU or
engine-CVT-ECU Starts the engine, and then continues the engine running if an engine
mobilization signal is co nfirmed. If an engine immobilization signal is
confirmed, the ECU cancels the engine control and stops the engine.

IMMOBILIZER SYSTEM
CHASSIS ELECTRICAL54A-6
Encrypted code registration criteria table
The ignition key contains a transponder (small trans-
mitter), which retains an unique encrypted code.
Under any of the conditions below, the encrypted
code must be registered in the immobilizer-ECU
again. The immobilizer-ECU can retain maximum
eight different encrypted codes. This means that
maximum eight ignition keys can be registered.
Component to be replacedEngine-ECU or
engine-CVT-ECU Immobilizer-ECUIgnition key
When Engine-ECU or
engine-CVT-ECU is
replaced−Must be replacedMust be replaced
All ignition keys must be
registered again
When immobilizer-ECU is
replaceMust not be replaced−Must not be replaced
All ignition keys must be
registered again
When ignition key is addedMust not be replacedMust not be
replaced•Additional ignition key
must be registered
•All ignition keys must
be registered again
When ignition key is lostMust not be replacedMust not be
replacedAll the ignition keys other
than the lost one must be
registered again

COMBINATION METER
CHASSIS ELECTRICAL54A-10
COMBINATION METER
M2540005000894
The combination meter features large, clearly visible
analogue indicators. The meter has the speedometer
in the middle, the coolant temperature gauge at
upper right, the fuel gauge at lower right, and the
tachometer at left so that drivers can easily distin
-
guish the information from the meters. The combina-
tion meter offers the following advantages.
•The combination meter is used for air conditioner
and meter drive control to integrate ECU.
•CAN communication is used for more reliable
transmission of all gauge data and indicator lamp
input signals, such as vehicle speed, engine
RPM, and coolant temperature. For further
details on CAN, refer to GROUP 54C, CAN
P.54C-2. The signals that the combination meter
uses are described in the CAN communications
input signals table
.
•Several diagnosis functions such as the diagno-
sis code memory and actuator tests are prepared
in order to improve serviceability.
•For a brighter display at night and for a longer
useful life, all indicator lamps, warning lamps, and
illumination bulbs use LEDs.
•The indicators for the speedometer, fuel gauge,
and other gauges are driven by a stepping motor.
For further details, consult the stepping motor
section
.
•The electronic speedometer operates by receiv-
ing vehicle speed signals sent by the
engine-ECU or engine-CVT-ECU
via the CAN.
•A large and clear LCD type odo-tripmeter is pro-
vided. The odometer continuously displays val-
ues while the tripmeter adopts a twin-trip (trip A,
trip B) function which is switched by a reset but
-
ton. In addition, clock function is incorporated.
•A fog lamp indicator lamp is provided to let the
driver know that the fog lamp is on.
•A seat belt warning lamp is installed to encourage
the driver to fasten the seat belt.
•The high-contrast meter is adopted. When the
ignition is turned ON, such as the needles and
face display are illuminated with fade-in lighting
by the LED light source.
•To further accentuate the high-contrast lighting,
the light of the high-contrast meter fades in and
fades out when the light is turned on and off
respectively.
•With the auto illumination function incorporated in
the high-contrast meter, a two-stage switching of
daytime (non-dimming) and nighttime (dimming)
is achieved. Also, the brightness can be adjusted
using the illumination control knob.
•A tail lamp indicator lamp is installed which
informs the lighting status of the tail lamps to the
driver.

COMBINATION METER
CHASSIS ELECTRICAL54A-12
STEPPING MOTOR
AC208264
When the battery line is connected or
a voltage drops from cranking or the like.
AD
AC107161
Deviation of
needleNo deviation of
needle
15˚
AE
Ignition switch at ON or LOCK (OFF) position
These
gauge s use a stepp ing motor a s the drive
mechanism for
the indica tor s (calle d the "move
-
ment"). Compared with conventional movement s, the
torque f
o r driving the indicators is much gre a ter for
supe
rior indicator a ccu racy and more st able respo n se. The indicator po sit i on d i sp layed is dete r
-
min
ed a s t he microcon troller circuit in the gauge co n-
trols the stepping moto r . In conve n tion al gaug es, the
indicato
r revo lves 360
° in response to 3 6 0° driving
contro
ls.
Ho
we
ver
,

a ste
pping
mot
o
r is designed so
that the
ind
i
cat
o
r revolves on
ly
15
°, even in
respo
n
se
to a drive contro
l of 3
6
0
°. The 15 ° drive
c
ont
ro
l m
u
st
be
rep
eat
ed
t
o
ma
ke
th
e
ind
i
cat
o r rot a t e
36
0
°. Th us , at a po sit i o n 15 ° a w a y fr om th e in dicat o r
display positio
n, there
will be an iden tica l control. As
a resu
lt, in the
case of a
great imp a ct such as from
an accide
nt wh
en the indicator becomes misalign ed,
if the
ignition
is
switched o
n
to st art driving while t he
indicato
r is
misaligned,
the indicator will fu nction
wh
ile
misaligned.
Thus, to retu rn the indicator to the
norma
l position in
case this ha ppens, when the ig ni
-
tion is switched on , the indicator p o sitions are re set
to their respective
position s af ter th e batte ry line is
conn
ected af ter it is cut. Af ter th e batte ry line is cut
and reconne
cted , the indicators simply retu rn to th e
zero
positio n. Th e same ope ration is pe rforme d af ter
volt
ag e is resto r ed if gauge functions are lost
beca
u se o f a volt age d r op from cra n king or t he like.
Furthermore, t
he in dicator only re turns 15
° after the
ignition
is switched on
or the
lock is turne
d
of f. The
indicato
r is
not moved
if it is not misa
lig
ned.
CAN COMMUNICA TION INPUT SIGNALS T ABLE
SignalTransmitter ECU
Engine speed signalEngine-ECU or
engine-CVT-ECU
Vehicle speed signal
Engine malfunction indicator lamp request signal
Engine coolant temperature signal
Shift lever indicator signal
ABS warning lamp request signalABS-ECU or ASC-ECU
EBD (brake) malfunction indicator lamp request signal
ASC indicator lamp request signal
EPS malfunction indicator lamp request signalEPS-ECU