engine MITSUBISHI COLT 2006 Service Repair Manual

GENERAL INFORMATION
FUEL SUPPLY13C-3
CONSTRUCTION DIAGRAM
AC403658AC
<4A9>
Fuel vapour canister
Fuel delivery pipe
Fuel injector Fuel tank
Fuel tank pump and
gauge assembly
AC601428AB
<4G1>
Fuel injector
Fuel tank
Fuel tank pump and
gauge assembly
Fuel vapour canister
Fuel delivery pipe
Fuel pressure
regulator
This fuel system is designed with considerat ion fo r
globa
l environ ment protection to ensure safety at a
collision,
reduce weigh t, and imp r ove re lia bility a nd
quality
. This system h a s th e following feature s :
•The intern al struct ure of t he fue l va pour canister
has bee
n improve d to re duce emission o f the
va
pour g a s into the air .
•The use of the fuel re turn less system, in wh ich
the
fuel pump pressure re gula t or is incorpora t ed
in
the fu el t ank pump and gauge assemb ly ,
allows t
he fue l return pipe and h o se to be d i scon
-
tinued, and red u ces weigh t. <4A9>
•In or der to ensu r e saf e ty a t a collision, the fuel
syst
em comp onent s such as the fue l line ho se
and
the fu el vapour canister in the engine com
-
pa rt men t were placed o n t he t r ansmissio n sid e to
avoid
interfe r ence with surroun ding componen t s .

CONSTRUCTION DESCRIPTION
BASIC BRAKE SYSTEM35A-6
BRAKE PEDAL
M2350007000154
AC207749
AC207292
AC207291AE
Fixed bolt
Stopper plate
Brake booster
Collision load Before collision
After collision
Reinforced bracket
Deck crossmember
Retreat locus of brake pedal during collision
Brake pedal position before collision Brake pedal position after collision
(Conventional)
Brake pedal position after collision
(Brake pedal rearward displacement preventio
nmechanism operated)
Reinforced bracket
The bra
k e pe dal re arward displacement preve n tion
mechanism
has been adop ted in ord e r to reduce the
driver
’ s le g and foot injury during fron t a l co llisio n .The brak e bo oste r is force d to move backward
accordin
g to ret r eatin g engine bo dy d u ring front al
collision a
nd the n the r e info rced b r acket is release d
from
the stopper plat e. Af ter release d , the reinf o rced
bracket is forced to
move backward and do wn wa rd
by gu
iding the rear end of the reinf o rced bracket
along
the stoppe r plate slo pe and it preve n t the back
-
ward and upward displace ment of the b r ake pedal.

CVT
CONTINUOUSLY VARIABLE TRANSMISSION (CVT)23-2
CVT
GENERAL INFORMATIONM2231000100165
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)
Transmission oilSpecified lubricantsDIA QUEEN ATF SP III
Quantity L8.1

CVT
CONTINUOUSLY VARIABLE TRANSMISSION (CVT)23-3
ELECTRONIC CONTROL SYSTEM
EEPROM
M2231012000024
Because EEPROM has been used, even if the bat-
tery terminals or control unit connectors are discon-
nected, the necessary learned values are stored in
the engine-CVT-ECU to prevent a loss of shift qual
-
ity. (Initialisation is available by M.U.T.-III).
CONTROLLER AREA NETWORK (CAN)
COMMUNICATION
M2231017000018
CAN* communication has been adopted for commu-
nication with other ECUs in order to decrease the
number of wires and ensure information transmis
-
sion. For CVT control, the engine-CVT-ECU receives
the following signals.
CAN COMMUNICATION INPUT SIGNAL TABLE
Input signalTransmitter ECU
Average vehicle speed signal from drive wheelsABS-ECU
Motor current signalEPS-ECU
EPS warning lamp illumination request signal
Compressor signalMeter and A/C-ECU
NOTE: *: For more information about CAN (Control-
ler Area Network), refer to GROUP 54C P.54C-2.
RATIO PATTERN
M2231013000061
AC403740
AE
Engine speed
(r/min)
Vehicle speed (km/h)
0
100 150
50
1,000 2,000 4,000
3,000 5,000
7,000
6,000
OD
LOW
Accelerator
fully closed, 20% 40%
Accelerator
fully open
60%80%

CVT
CONTINUOUSLY VARIABLE TRANSMISSION (CVT)23-5
ATF WARMER (ATF COOLER)
M2230000600082
AC403052AC
AT F
Engine coolant
Sectional view
ATF Warmer
(ATF Cooler)
Thermo valve
AC403006
CVT CVT CVT
Thermostat
Thermo
valve
ATF warmer (ATF cooler)ATF warmer (ATF cooler)
: Engine coolant
: AT F
85˚C or more>
Engine coolant flows through
all the sections.
75 - 85˚C>
Engine coolant flows through
the heater and the ATF warmer.
75˚C or less>
Engine coolant flows through
the heater only.
AC
: Valve open
: Valve closed
Thermostat
Thermo
valve
ATF warmer (ATF cooler)Thermo
valve
Thermostat
Radiator
Engine Heater
Radiator Engine Heater
Radiator
Engine Heater
The A TF warme r (A TF cooler) is adop ted. (th e A TF
cooler in
corpo r ating the rad i ator is n o t ado pted)
At the st art of runn ing, th e tempe r ature of th e engine
coolant rises earlier tha
n that of the A T F . The A TF
war
m er ut ilizes this ch aract e ristic to raise the A TF
tempe
r ature a s ea rly a s po ssible to an a ppropriate
leve
l (70 - 80
°C). It also contro ls fluid temperature st ably and reduces A TF agit a tion resist ance to
imp r ove f uel consump t ion ra tio.
In addition
, a the r mo-valve has bee n adop ted to
restrict the eng
ine coolan t supply to the A TF warmer
(A
TF coole r) until the engine co olan t temperature
reach
e s th e appro p riat e temperature when low tem
-
perature st art in winter , giving the priority to th e heat-
ing pe rformance .

TRANSMISSION CONTROL
CONTINUOUSLY VARIABLE TRANSMISSION (CVT)23-9
When the ignition key is in the LOCK (OFF) position or pulled out (With the selector
lever in the P position)
AC206911 AB
Slider
Ignition key 
LOCK (OFF) position
Projection of rotor
Key interlock cable
Lock cam
Rod
Lever
Engine starting
switch assembly
In the e
ngin e st arting switch a s sembly , the slider is
engage
d with t he groo ve o f the key interlock cab l e,
and the
slider is locked by the p r ojection of the rotor
so th
at the key interlock ca ble a s well as the lever ,
rod, and
lock cam d oes not move.As a result of this, an y att e mpt to sh if t the sele ctor
lever is prevented.
The pu shbu tton on the selector
lever can
not be pressed b e cau s e th e lock cam does
not rot
a te, then t he se lector le ver cannot be shif ted
from t
he P position to a nother position .

TRANSMISSION CONTROL
CONTINUOUSLY VARIABLE TRANSMISSION (CVT)23-10
When the ignition key is in other than the LOCK (OFF) posi tion (With the selector
lever in the P position)
AC206912 AB
A
Slider
Ignition key
ACC to START
position
Projection of rotor
Key interlock cable
Lock cam
Rod
Lever
Engine starting
switch assembly
The roto
r in th e engine st a r ting switch assembly has
a notch betwee
n ACC a nd ST AR T so that th e slider
beco
m es unlo c ked.
Then the slider can move in t he direction A as illus-
trated in the figure to allow the lock cam to rot a te so
that the se
lector lever can be shif ted fro m the P posi
-
tion to anoth e r position by pressin g the p u shb u tton.
NOTE: Whe n the ignition key is in oth e r than the
LOCK (OFF) position with the bra k e pe dal n o t
depressed , the sele ctor leve r cann ot be shif ted fro m
the P position to anothe r positio n.
KEY INTERLOCK MECHANISM
When the se lect or lever is not in th e P positio n, the
ignition
key cann ot be turned to the L O CK (OF F )
position
and pu lle d out.

TRANSMISSION CONTROL
CONTINUOUSLY VARIABLE TRANSMISSION (CVT)23-11
When pulling out the key with the selector lever in other than the P position
AC206912AC
B
A
A
Slider
Ignition key
ACC to START
position
Projection of rotor
Key interlock cable
Lock cam
Rod
Lever
Engine starting
switch assembly
The lo
ck cam is kep t in a rot a ted condition, and th e
key inte
rlock ca ble is kept p u lle d in direction A as
illustra
t ed in the figure. I n this st ate , the slider in the
e
ngine st a r ting swit ch asse mbly is moved and lo cked
in direction B as illustrated in the
figu re.As a result of th is, a n y at te mpt to t u rn th e ign i t i o n k e y
to the L
O CK (OFF) position is prevented beca u se
the slide
r prevent s the rotor fro m rot a ting, an d the
ignition key can only turn up to the
ACC position a nd
cann
ot be p u lle d out.

TRANSMISSION CONTROL
CONTINUOUSLY VARIABLE TRANSMISSION (CVT)23-12
When pulling out the key with the selector lever in the P position
AC206911AC
A
A
Slider
Ignition key
ACC to START
position
Projection of rotor
Key interlock cable
Lock cam
Rod
Lever
Engine starting
switch assembly
Detent pin
When re leasing the push button on t he selector leve r
with the se
lector lever in the P position , the lock ca m
is ro
t a t ed by the d e tent p i n. Th en the key inte rlock
cable
is moved by the lo ck cam in dire ction A as illus
-
trated in the figure .
As a result of this, th e slider in the engine st arting
switch assembly is unlocked. The rotor can then turn,
and the
ign i tion key ca n be p u lle d out b y turn ing it to
the LOCK (OFF)
position .

GROUP 17
ENGINE AND EMISSION
CONTROL
CONTENTS
ENGINE CONTROL . . . . . . . . . . . . . .17-2
ACCELERATOR SYSTEM . . . . . . . . . . . . . 17-2
EMISSION CONTROL . . . . . . . . . . . .17-3
GENERAL INFORMATION <4A9> . . . . . . . 17-3
GENERAL INFORMATION <4G1> . . . . . . . 17-4