light MITSUBISHI COLT 2006 Service User Guide
Page 173 of 364
GENERAL INFORMATION
CHASSIS ELECTRICAL54A-2
GENERAL INFORMATION
M2540000100302
FEATURES
IMPROVEMENT OF VISUAL OBSERVA-
TION AND SAFETY, AND ENHANCEMENT 
OF USER-FRIENDLINESS AND VERSA
-
TILITY
•The large four headlamps with the lightweight 
resin lenses have been adopted.
•The high-mounted stop lamp has been installed 
on the tailgate for all models.
•Combination meters and ECUs are connected 
using CAN to ensure the transmission of informa
-
tion. 
•The combination meters are provided integrated 
with a perfect round-shaped speedometer where 
the needles operate at the wider angle.
IMPROVEMENTS IN SERVICE QUALITY
•Diagnosis connector for inspection with M.U.T.-III 
is installed.
•Diagnosis and service data are integrated in the 
combination meter, enabling communication with 
M.U.T.-III
BETTER PRODUCT PACKAGE
•The smart wiring system (SWS) has been 
adopted for the lamp control including the head
-
lamp auto turn-off and fog lamp unattended-oper-
ation reminder. 
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LIGHTING
CHASSIS ELECTRICAL54A-7
LIGHTING
M2540004000932
EXTERIOR LAMPS
•The headlamp employs a large four-lamp type 
integrated with the front turn-signal lamp and 
position lamp, creating the integrity appearance 
with the hood. The internal lens design looks like 
a precision machine, achieving improved appear
-
ance.
•The fog lamp is standard equipped. (VRX, VR 
and RALLIART version-R : Standard equipment, 
LS : Option)
•The rear combination lamps are a large verti-
cal-type integrated with the tail lamp, stop lamp, 
rear turn-signal lamp and back-up lamp. 
•The high-mounted stop lamp is equipped as 
standard in order to improve safety.
Specifications
ItemSpecification
Headlamp assemblyHeadlamp (halogen bulb)Low-beam W55 (H7)
High-beam W55 (H1)
Position lamp W5 (W5W)
Front turn-signal lamp W21 (W21W)
Fog lamp W55 (H11)
Side turn-signal lamp W5 (WY5W)
Rear combination lamp 
assemblyTa i l  l a m p  W5 (W5W)
Stop lamp W21 (W21W)
Rear turn-signal lamp W21 (W21W)
Back-up lamp W21 (W21W)
High-mounted stop lamp W x units5 × 4 (W5W)
Licence plate lamp W5 (W5W)
NOTE: The brackets ( ) show the bulb type. 
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LIGHTING
CHASSIS ELECTRICAL54A-8
CONSTRUCTION DIAGRAM
AC405170
Headlamp (high-beam)
Front turn-signal lamp
Position lamp Side turn-signal lamp
Headlamp assembly
AC
Headlamp (low-beam)
Fog lamp
AC510138AC
High-mounted stop lamp
Licence plate lamp Stop lamp
Reflector
Rear turn-signal
lamp
Back-up lamp Tail lamp
Rear combination lamp
assembly 
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LIGHTING
CHASSIS ELECTRICAL54A-9
INTERIOR LAMP
The lens-push type map and room lamp is adopted 
so that an excellent operationability can be achieved 
allowing operation from driver and passenger seats.
Specifications
ItemSpecification
Map and room lamp W × units8 × 2
CONSTRUCTION DIAGRAM
AC601455
<Vehicles without sunroof>
Map and room lamp
Map and room lamp<Vehicles with sunroof>
AB 
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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 <M/T> or engine-CVT-ECU <CVT> 
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. <VRX>
•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. <VRX>
•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. <VRX>
•A tail lamp indicator lamp is installed which 
informs the lighting status of the tail lamps to the 
driver. <VRX> 
Page 184 of 364
CIGARETTE LIGHTER
CHASSIS ELECTRICAL54A-13
DIAGNOSIS CODE TABLE
Code No.Diagnostic item
U1073Bus Off
U1100Engine-ECU <M/T> or engine-CVT-ECU <CVT> time-out (related to 
engine)
U1101Engine-CVT-ECU <CVT> time-out (related to CVT)
U1102ABS-ECU or ASC-ECU time-out
U1106EPS-ECU time-out
U1109ETACS-ECU time-out
U1120Failure information on engine-ECU <M/T> or engine-CVT-ECU <CVT> 
(related to engine)
U1206Flag invalid
CIGARETTE LIGHTER
M2540003300060
The cigarette lighter is installed to the centre lower 
panel.
AC600730
Cigarette lighter Cigarette lighter 
<M/T> 
<CVT> 
AC
Commun ication  st andb y signalETACS-E C U
Driver's door  "open" sign als
Ignition switch (ACC) signa l
Ignition switch (IG1 ) sig nal
High-beam indicator re quest signal
Tu rn-signal indicato r reque st signa l
Fog lamp indicator  request signal
Illumination  sig nal
All doors "Open" sign al
Signal T r a nsmitter ECU 
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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 
Page 198 of 364
TECHNICAL FEATURES
GENERAL00-13
GEARSHIFT CONTROL
Smart shift CVT 
AC206842
AC206864
AC207638
AB
P R
ND
Ds
L
Inhibitor switch Transmission 
control cable
Selector lever 
assembly
•A smart shift type selector lever h as b een 
ado pted in orde r to facilitate walkthrou gh 
bet wee n the  seats.
•A gun  grip type selector  lever kno b has been  
ado pted fo r better operat ion and easier visual 
re cog nitio n  of  th e swit ches ar ra ng ed in th e ce ntre  
p anel.
•The  selecto r lever assembly has been  a single 
unit ma de by alu minium die casting f or bette r 
accura cy and fewer  pa rts, resu lting in  the light
-
weig ht and  compact struct ure. 
•The selecto r lever has been  designed to be com-
pa ct  a nd appro priate ly configured no t to  interf ere 
with  the en ergy absor bing  mechanism  on the 
steerin g column  upon impact of th e vehicle.
•In order to  prevent abru pt st art b y erro neous 
ope ration  of selector lever , a CVT errone ous 
ope ration  preventio n mechanism (the  shiftlock 
m echa nis m and  key interloc k mech anis m) h as 
bee n adop ted. 
Page 200 of 364
TECHNICAL FEATURES
GENERAL00-15
BRAKE
M2000024000270
SERVICE BRAKE
Brake system with high reliability and durability have 
achieved distinguished braking performance.
AC601327AB
<Front disc, Rear drum><Front disc, Rear disc>
Brake booster (with variable 
boosting mechanism)
Master cylinder Front disc brake
Hydraulic unit
(Integrated with ABS-ECU)
Rear drum brake
Brake booster (with variable 
boosting mechanism)
Master cylinder
Front disc brake
Hydraulic unit
(Integrated with ABS-ECU) Rear disc brake
BRAKING PERFORMANCE
•Brake booster with 9-inch variab le amplificatio n 
ratio me chanism by which greate r braking f orce 
ca n be o bta ined  with a less ped al pressure has 
bee n inst alled (with b rake  assist  function).
•14-inch  disc bra ke is inst alled on  the front 
wheels.<L S, VR>
•15-inch disc bra ke is inst alled on  the front 
wheels.<VR-X, RALLIAR T Vers io n-R>
•8-inch leading trailing type  drum brake is installed 
on  the rear  wheels.<LS, VR>
•14-inch  disc bra ke is inst alled on  the rear 
wheels.<VR-X, RALLIAR T Vers io n-R>
ST ABILITY
•4-wheel anti-skid brak ing system (4ABS) is 
ado pted  to pre vent slippin g cause d by the vehicle 
wheels locking  up, in order t o maint ain a ppropri
-
ate bra kin g dist an ce,  an d also  t o  ma inta in ve hicle 
st ab ility an d steering  function.
•Electronic br ake-force distribution (EBD) is 
ad opted to  m ain ta in  th e max imu m am ount  of rea r 
braking  force even whe n the  vehicle's loa d is var
-
ie d.
•Diag onal split (X-type) brake fluid line  is adopte d.
•V entilate d discs have bee n adopted to front 
brakes to improve anti-fading per formance.
•A brake pe dal retraction suppression structu re 
tha t restr ains the re traction of  the brake pe dal 
and  reduces  the shock to th e feet of the d rive r in 
the  even t of a  frontal collision ha s been ado pted.
SERVICEABILITY
•Diagnosis function  is adopted for the ABS system 
in  order t o make inspe ctio n easier .
•For the fron t disc bra kes, brake disc  separate d 
fron t hub is a dapted to make removal a nd instal
-
la tion easier .
•ABS-ECU and hydraulic unit have been inte-
grated to make them mor e comp act and lighte r. 
Page 225 of 364
GENERAL INFORMATION
FRONT SUSPENSION33-2
GENERAL INFORMATION
M2330000100824
Newly developed MacPherson strut suspension has 
been adopted.
•The steering gear box is installed in the lower 
position for better cornering performance.
•The roll centre and the kingpin axle are installed 
appropriately for better cornering performance.
•The long stroke strut is adopted for sufficient road 
holding quality.
•High-rigid and light-weight flat crossmember is 
adopted for sufficient suspension rigidity.
•The strut coil spring is installed appropriately for 
friction reduction and comfortable ride.
•The coil spring of high tension material is adopted 
for weight reduction.
•The open-section lower arm is adopted for weight 
reduction.