ECU MITSUBISHI COLT 2006 Service Manual PDF

SUNROOF
BODY42-20
SUNROOF
M2420016000242
Electric sliding glass sunroof with tilt-up mechanism
has been adopted (Option). This sunroof features the
following characteristics.
•Lightweight sunroof have been adopted.
•The sunroof tilts up for approx. 30mm to improve
ventilation performance.
•The integrated switch allows for all slide
open/close, tilt up/down and stop operations.
•If external force is applied during slide closing or
tilt down operations that obstructs operations,
then the sunroof lid glass will stop according to
the jam prevention mechanism.
CONSTRUCTION DIAGRAM
AC206680 AB
Sunroof lid glass Drain hose
Drain hose
Sunroof motor assembly
(integrated into sunroof-ECU) Sunshade
Open switch
Tilt-up switch
Close/tilt-down switch
Drain hose
DESCRIPTION OF
STRUCTURE AND
OPERA
T ION
SUNROOF FUNCTION
The sunroof may operat e in the way similar to th e
jam preve
n tion function of the sunro o f due to so me
driving condition
s or environment. In the case, move
the sunroof t
o fully closed po sit i on a s described
below
.
1.T u rn ON and hold the sunroo f switch un til t he
sunroo f moves in the desired d i rection and stop s.
2.If the sunroof does not move to the fully closed
p o sit i on b y the operat ion in S t ep 1 and the jam
p r even tion f unction op erat es again, release the
sunroo f switch. Th en within the elap se of 3
seco nds, turn ON and ho ld it again until th e
sunroo f stop s at the fully closed position.
If the sunroof does not o perate corre ctly even af ter
step
2 is performed 4 times, re fer to th e W o rksh op
Manu
al.

SUNROOF
BODY42-21
SUNROOF MOTOR ASSEMBLY
AC207234AB
Sunroof-ECU
Drive gear
Motor
The sunroof motor assembly , which consist s o f the
m
o t o r bo d y , driv e ge ar , a n d sun r oo f-ECU, i s ins t al le d
in fron
t of the housing .
SUNROOF-ECU
6
3
1
10
54
M
AC312986 AC206479
5
4
3
2
1
10
9
8
7
6
AB
Ignition switch
Open switch Tilt-up switch
Close/Tilt-down
switch Sunroof switch Sunroof-ECU
Sunroof motor assembly Motor
Sensor 1
Sensor 2 Sensor
power supply
The su nroof-ECU incorporate s a micro c omputer an d
contro
ls various motor operations base d on t he su n
-
roof switch sign als.

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.

DIAGNOSIS SYSTEM
CHASSIS ELECTRICAL54A-3
DIAGNOSIS SYSTEM
M2540001000472
For improved serviceability, a diagnosis connector
for M.U.T.-III inspection is built into the instrument
panel near the position of the driver's left foot.
Diagnostic
FunctionMPIABS or
ASCCVTEPSCombination meterSRS air
bagImmobilizerETACS
MeterA/C
Diagnosis code setApplicableApplicableApplicableApplicableApplicableApplicableApplicableApplicableApplicable
Service data sentApplicableApplicableApplicableApplicableApplicableApplicableApplicableApplicableNot
applicable
Actuator testApplicableApplicableApplicableApplicableApplicableApplicableNot
applicableNot
applicableNot
applicable
Diagnosis record
storedApplicableApplicableApplicableApplicableApplicableApplicableApplicableApplicableApplicable
Diagnosis deletion
using M.U.T.-IIIApplicableApplicableApplicableApplicableApplicableApplicableApplicableApplicableApplicable
Pulse check using
M.U.T.-IIINot
applicableNot
applicableNot
applicableNot
applicableNot
applicableNot
applicableNot
applicableNot
applicableApplicable
Status indication by
diagnosis code
*
Not
applicableApplicableNot
applicableApplicableApplicableApplicableNot
applicableNot
applicableApplicable
Estimated vehicle
speed sentNot
applicableNot
applicableNot
applicableApplicable
(via CAN)Applicable
(via CAN)Not
applicableNot
applicableNot
applicableApplicable
(via CAN)
ECU version No.
displayedNot
applicableApplicableNot
applicableApplicableApplicableApplicableNot
applicableNot
applicableNot
applicable
NOTE: *: If a diagnosis code is sent for this function,
the display informs users whether a mechanical
problem currently exists or whether it existed before
but normal operation has been restored. The mes
-
sage for the former state identifies it as active trouble
and the message for the latter identifies it as stored
trouble.

BATTERY
CHASSIS ELECTRICAL54A-4
DIAGNOSIS CONNECTOR
AC206820
91
11
32 10
12
4
14
65 13
15
7
8
16
16-pin connector
AB
Diagnosis connector (black)
1Diagnosis control
2−
3SWS communication line
4Earth
5Earth
6CAN communication line (CAN_H)
7MPI, CVT, SRS air bags and immobilizer
8−
9ETACS
10−
11ECU optimisation control
12−
13−
14CAN communication line (CAN_L)
15−
16Battery power supply
BA
TTER Y
M25400020 0028 2
Item75D23L
Voltage V12
Capacity (5-hour rate) Ah52
Electrolytic fluid specific gravity (fully charged state at 20°C)1.280

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

CIGARETTE LIGHTER
CHASSIS ELECTRICAL54A-13
DIAGNOSIS CODE TABLE
Code No.Diagnostic item
U1073Bus Off
U1100Engine-ECU or engine-CVT-ECU time-out (related to
engine)
U1101Engine-CVT-ECU 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 or engine-CVT-ECU
(related to engine)
U1206Flag invalid
CIGARETTE LIGHTER
M2540003300060
The cigarette lighter is installed to the centre lower
panel.
AC600730
Cigarette lighter Cigarette lighter


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