torque MITSUBISHI COLT 2006 Service Repair Manual

A/C-ECU
HEATER, AIR CONDITIONER AND VENTILATION55-8
A/C-ECU
M2551001200179
CONTROL SYSTEM
The manual and automatic A/Cs have the following
control functions.
ControlManual A/CAutomatic A/C
Automatic wind temperature change controlApplicableApplicable
Automatic outside/inside air selection controlApplicableApplicable
Idle-up controlApplicableApplicable
Cooling fun load controlApplicableApplicable
Cooling controlApplicableApplicable
Detection control for refrigerant leaksApplicableApplicable
MAX A/C controlNot applicableApplicable
Estimation control for compressor torqueApplicableApplicable
Defroster linked controlNot applicableApplicable
AUTOMATIC CHANGE CONTROL OF
BLOW WIND TEMPERATURE
(COMPRESSOR
ENERGY-CONSERVATION CONTROL)
Optimum ON/OFF control of the compressor is
achieved according to the outside/inside air mode,
air temperature (air temperature sensor), and insula
-
tion.
OUTSIDE/INSIDE AIR AUTO SWITCHING
CONTROL
When the A/C is turned on in high ambient tempera-
ture, the recirculation function is automatically acti-
vated to cool down the passenger compartment and
improve fuel consumption.
COOLING FUN LOAD CONTROL
Depending on the A/C load, the cooling fan cycle
time is controlled and the exterior noise in the inter
-
mediary stage is decreased. Also, the load of the
alternator is decreased to improve the fuel economy.
COOLING CONTROL
If air temperature is high, the CVT rotates at a high
speed to prevent deterioration in cooling perform
-
ance.
DETECTION CONTROL FOR
REFRIGERANT LEAKS
When it is judged from the air temperature (air tem-
perature sensor) and the refrigerant pressure (A/C
pressure sensor) that the refrigerant amount is the
specified value or less, or the refrigerant pressure is
abnormal, the compressor is forced to be cut off to
protect the A/C system.
MAX A/C CONTROL AUTOMATIC A/C>
When MAX COOL position is set, automatically the
mode is changed to the inside air mode before the
A/C is turned ON, thereby facilitating the operation
for obtaining maximum cooling performance.
ESTIMATION CONTROL FOR
COMPRESSOR TORQUE
Communication between the engine⋅CVT-ECU and
A/C-ECU is made to control the engine according to
the compressor torque for higher drivability and
reduction in fuel consumption.
FORCIBLE DEFROSTER CONTROL

When the defroster vents are selected, the A/C is
automatically turned ON. At this time, the out
-
side/inside air selection damper is operated to the
fresh-air position to defrost the windshield glass
quickly.

EXHAUST SYSTEM
INTAKE AND EXHAUST15-5
EXHAUST SYSTEM
EXHAUST MANIFOLD <4A9>M2150006000317
AK402037
Pipes
AD
The exhaust manifold co nsist s of st ain l ess st eel
pipes, with
all the po rt s bein g equa l in leng th, to
achieve
robust mid-range torque and weight red u c
-
tion.

GENERAL INFORMATION
ENGINE MECHANICAL <4G1>11B-2
GENERAL INFORMATION
M2112000101010
The 4G15-MIVEC-T/C engine employed in the Colt
is designed to provide higher performance and
higher output by using a turbocharger to the
4G15-MIVEC engine employed in the conventional
Colt. The main changes in the conventional
4G15-MIVEC engine are as follows:•Cylinder head gasket changed
•Oil jet added
•Strength improved in piston and piston pin
MAJOR SPECIFICATIONS
Item4G15-MIVEC-T/C
Total displacement mL1,468
Bore × Stro ke mm75 × 82.0
Compression ratio9.0
Compression chamberPentroof-type
Va l v e t i m i n gIntake openingBTDC 34° − AT D C 6°
Intake closingABDC 30° − ABDC 70°
Exhaust openingBBDC 50°
Exhaust closingATDC 10°
Maximum output kW (PS)/rpm113 (154)/6,000
Maximum torque N⋅m (kg⋅m)/rpm210 (21.4)/3,500
Fuel systemElectronically controlled multipoint fuel injection
Ignition systemElectronic-controlled 4-coil

GENERAL INFORMATION
ENGINE MECHANICAL <4A9>11A-2
GENERAL INFORMATION
M2112000100697
The newly developed 1.5L 4A91 engine features
4-cylinder, 16-valve, and double overhead camshafts
(DOHC).
The engine has the following features.
•Aluminum cylinder block
•MIVEC (Mitsubishi Innovative Valve timing Elec-
tronic Control system)
•Selective valve tappet of direct acting valve sys-
tem for valve clearance adjustment
•Timing chain
MAJOR SPECIFICATIONS
Item4A91
Total displacement mL1,499
Bore × Stro ke mm75 × 84.8
Compression ratio10.0
Compression chamberPentroof-type
Va l v e t i m i n gIntake openingBTDC 31° − AT D C 1 9°
Intake closingABDC 21° − ABDC 71°
Exhaust openingBBDC 39°
Exhaust closingATDC 5°
Maximum output kW (PS)/rpm77 (104)/6,000
Maximum torque N⋅m (kg⋅m)/rpm141 (14.4)/4,000
Fuel systemElectronically controlled multipoint fuel injection
Ignition systemElectronic-controlled 4-coil

GENERAL INFORMATION
ENGINE MECHANICAL <4A9>11A-18
GENERAL INFORMATION
M2112000101009
The newly developed 1.5L 4A91 engine features
4-cylinder, 16-valve, and double overhead camshafts
(DOHC).
The engine has the following features.
•Aluminum cylinder block
•MIVEC (Mitsubishi Innovative Valve timing Elec-
tronic Control system)
•Selective valve tappet of direct acting valve sys-
tem for valve clearance adjustment
•Timing chain
MAJOR SPECIFICATIONS
Item4A91
Total displacement mL1,499
Bore × Stro ke mm75 × 84.8
Compression ratio10.0
Compression chamberPentroof-type
Va l v e t i m i n gIntake openingBTDC 31° − AT D C 1 9°
Intake closingABDC 21° − ABDC 71°
Exhaust openingBBDC 39°
Exhaust closingATDC 5°
Maximum output kW (PS)/rpm77 (104)/6,000
Maximum torque N⋅m (kg⋅m)/rpm141 (14.4)/4,000
Fuel systemElectronically controlled multipoint fuel injection
Ignition systemElectronic-controlled 4-coil

DIAGNOSIS SYSTEM
MULTIPOINT FUEL INJECTION (MPI) <4G1>13B-16
P0500Vehicle speed sensor systemOpen circuit or short-circuit in
sensor-related circuitsON
P0513Immobilizer malfunctionOpen circuit or short-circuit in
sensor-related circuits−
P0603EEPROM malfunctionAbnormality in engine-ECU−
P0606Engine-ECU main processor
malfunctionAbnormality in engine-ECUON
P0622Alternator FR terminal systemOpen circuit or short-circuit in
system-related circuits−
P0638Throttle valve control servo circuit
range/performance problemAbnormal throttle valve control
servoON
P0642Throttle position sensor power
supply malfunctionOpen circuit or short-circuit in
sensor-related circuitsON
P0657Throttle valve control servo relay
circuit malfunctionOpen circuit or short-circuit in
sensor-related circuitsON
P1021Oil feeder control valve systemOpen circuit and short-circuit in
solenoid valve-related circuits−
P1231Trustful check active stability
control (ASC)ABS/ASC-ECU−
P1233Trustful check throttle position
sensor (main)Abnormality in throttle position
sensor (main)ON
P1234Trustful check throttle position
sensor (sub)Abnormality in throttle position
sensor (sub)ON
P1235Trustful check air flow sensorAbnormality in air flow sensorON
P1236A/D converter systemAbnormality in engine-ECUON
P1237Trustful check accelerator pedal
position sensorAbnormality in accelerator pedal
position sensorON
P1238Air flow sensor trustful for torque
monitoringAbnormality in engine-ECUON
P1239Trustful check engine speedAbnormality in engine-ECUON
P1240Trustful check ignition angleAbnormality in ABS/ASC-ECU−
P1241Torque monitoringAbnormality in engine-ECUON
P1602Communication malfunction
(between engine-ECU main
processor and system LSI)Abnormality in engine-ECUON
P1603Battery back-up circuit malfunctionOpen circuit or short-circuit in
system-related circuitsON
P2100Throttle valve control servo circuit
(open)Open circuit in throttle valve control
servo-related circuitON
P2101Throttle valve control servo
magneto malfunctionShort-circuit in system-related
circuitsON
P2108Throttle valve control servo
processor malfunctionAbnormality in engine-CVT-ECUON
Code No. Diagnosis item Main diagnosis contents Engine
warning lamp

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

PRODUCT FEATURES
GENERAL00-3
PRODUCT FEATURES
M2000005000475

•COLT has been equipped with the new 1,500 mL
aluminium die-cast engine (4A9-engine) for fur
-
ther refinements of comfort driving, excellent
power performance, fuel economy, and ecology
performance.

•The body and suspension of COLT RALLIART
Version-R have been thoroughly tuned to
increase the 4G1-engine output which enables
dynamic driving.
•The robust image suited for the dynamic driving
has been adopted for the appearance.
SPORTY AND STYLISH DESIGN
•Bucket-like front seats sion-R>
•Sport seats exclusive to the models with turbo-
charger
•15-inch aluminium wheel
•High-contrast combination meter ART Version-R, LS, VR-X (M/T) >
•Robust appearance by new shaped front bumper
adaptation and rear bumper change Version-R>
•Black overfender
•16-inch aluminium wheel
ACTIVE DRIVING AND HIGH QUALITY
•For 4A9-engine, the aluminium die-cast cylinder
block has been installed for weight reduction of
the vehicle.
•For 4G1-engine, turbo-charger model has been
introduced to increase output and torque,
enhancing sporty image.
•Sporty driving has been ensured by the
"GETRAG" 5-speed manual transmission (floor
shift).
•The suspension has been tuned to improve cor-
nering and stability at high speed. Version-R>
•A strut tower bar has been adopted to improve
the body rigidity.
•Electric power steering system has been
improved and EPS-ECU has been additionally
equipped with the return control logic, resulting in
superior steering wheel return control and better
steering feel equal to or better than that for other
models with hydraulic power steering.

TECHNICAL FEATURES
GENERAL00-9
ENGINE
M2000020000579
<4A9>
The newly-developed 4A9 engine has been installed
to realise small-size, light-weight, high-performance,
and better fuel economy with the state-of-the-art
technologies such as the aluminium die-cast cylinder
block, direct attack driven-type DOHC MIVEC, timing
chain-type cam drive, and rear exhaust.
MAJOR SPECIFICATIONS
Item4A91
Total displacement mL1,499
Bore × Stro ke mm75 × 84.8
Compression ratio10.0
Compression chamberPentroof-type
Va l v e t i m i n gIntake openingBTDC 31° − ATDC 19°
Intake closingABDC 21° − ABDC 71°
Exhaust openingBBDC 39°
Exhaust closingATDC 5°
Maximum output kW (PS)/rpm77 (105)/6,000
Maximum torque N⋅m (kg⋅m)/rpm141 (14.4)/4,000
Fuel systemElectronically controlled multipoint fuel injection
Ignition systemElectronic-controlled 4-coil
<4G1>
Based on the 4G1 engine fitted on the existing COLT,
the power performance leading the compact car field
has been secured by Turbocharger.
MAJOR SPECIFICATIONS
Item4G15 (with Intercooler Turbocharger)
Total displacement mL1,468
Bore × Stro ke mm75 × 82.0
Compression ratio9.0
Compression chamberPentroof-type
Va l v e t i m i n gIntake openingBTDC 34° − ATDC 6°
Intake closingABDC 30° − ABDC 70°
Exhaust openingBBDC 50°
Exhaust closingATDC 10°
Maximum output kW (PS)/rpm113 (154)/6,000
Maximum torque N⋅m (kg⋅m)/rpm210 (21.4)/3,500
Fuel systemElectronically controlled multipoint fuel injection
Ignition systemElectronic-controlled 4-coil

TECHNICAL FEATURES
GENERAL00-11
CVT
The F1C1A transmission is adopted for the CVT.
This transmission is basically the same as conven
-
tional transmission.
The ATF warmer (ATF cooler) is adopted.
SPECIFICATIONS
ItemSpecification
Transmission modelF1C1A
Engine model4A91
Torque converterTy p e3-element, 1-stage, 2-phase type
Lock-upProvided
Stall torque ratio2.0
Transmission typeForward automatic continuously variable (steel belt type),
1st in reverse
Gear ratioForward2.319 − 0.445
Reverse2.588
ClutchA pair of multi-plate system
BrakeA pair of multi-plate system
Manual control systemP-R-N-D-Ds-L (smart shift)
FunctionVariable speed controlYe s
Line pressure controlYe s
Direct engagement controlYe s
N-D/N-R controlYe s
Shift pattern controlYe s
Self-diagnosisYe s
FailsafeYe s
Oil pumpTy p eExternal gear pump
ConfigurationBuilt-in (chain drive)
Control methodElectronic control (INVECS-III)