2006 MITSUBISHI COLT eps

A/C-ECU
HEATER, AIR CONDITIONER AND VENTILATION55-9
COMMUNICATION
The A/C receives the following kinds of signals
through CAN communication.
SignalTransmitter ECU
Engine coolant
temperature signalEngine-CVT-ECU
or Engine-ECU
NOTE: . For further details on CAN, refer to GROUP
54C, CAN
P.54C-2.
DIAGNOSTIC FUNCTION
Code No.Diagnostic itemService data display
contents when
diagnosis code is set
B1011Ambient temperature sensor system (short circuit)20°C
B1012Ambient temperature sensor system (open circuit)
B1021Air thermo sensor system (short circuit)−6°C
B1022Air thermo sensor system (open circuit)
B1082Automatic/manual types abnormal error−
U1073Bus off error−
U1100Engine-CVT-ECU time-out
U1101
U1102ABS-ECU time-out
U1106EPS-ECU time-out
U1109ETACS-ECU time-out
U1120Failure information on engine-CVT-ECU (related to engine)
U1206Flag invalid

CONTROLLER AREA NETWORK (CAN)
MULTIPOINT FUEL INJECTION (MPI) <4A9>13A-13
CONTROLLER AREA NETWORK (CAN)
M2132019000292
Establishing communication without fail is designed
by CAN communication protocol. Refer to Group
54C-CAN
P.54C-2 for the details about CAN.
The signals input into engine-ECU or
engine-CVT-ECU are as follows:
CAN Communication Input Signal Table
Input signal nameTransmitter ECU
Motor electric current signalEPS-ECU
Compressor signalMeter and A/C-ECU
Idle-up request signal
Cooling fan request signal
SYSTEM CONFIGURATION DIAGRAM
AK600527AB
Engine-ECU
or
Engine-CVT
-ECU
M.U.T.-III
EPS-ECU ETACS
-ECU
Steering
wheel
sensor G and
yaw rate
sensor
ABS-ECU
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

DIAGNOSIS SYSTEM
MULTIPOINT FUEL INJECTION (MPI) <4A9>13A-16
P0606Microcomputer malfunctionAbnormality in engine-ECU
or engine-CVT-ECU ON
P0622Alternator FR terminal systemOpen circuit or short-circuit in
system-related circuits−
P0638*Throttle valve control servo circuit
range/performance problemAbnormal throttle valve control
servoON
P0642*Throttle position sensor power
supplyAbnormality in engine-ECU
or engine-CVT-ECU ON
P0657*Throttle valve control servo relay
circuit malfunctionOpen circuit or short-circuit in
sensor-related circuitsON
P1021Oil feeder control valve systemOpen circuit or short-circuit in
solenoid valve-related circuitsON
P1602*Communication malfunction
(between engine-ECU or
engine-CVT-ECU main
processor and system LSI)Abnormality in engine-ECU
or engine-CVT-ECU ON
P1603*Battery backup circuit malfunctionOpen circuit or short-circuit in
system-related circuitsON
P2100*Throttle valve control servo circuit
(open)Open circuit in throttle valve control
servo-related circuitON
P2101*Throttle valve control servo
magneto malfunctionShort-circuit in system-related
circuitsON
P2108*Throttle valve control servo
processor malfunctionAbnormality in engine-ECU
or engine-CVT-ECU ON
P2122*Accelerator pedal position sensor
(main) circuit low inputOpen circuit or short-circuit in
sensor-related circuitsON
P2123*Accelerator pedal position sensor
(main) circuit high inputOpen circuit in sensor-related
circuitsON
P2127*Accelerator pedal position sensor
(sub) circuit low inputOpen circuit or short-circuit in
sensor-related circuitsON
P2128*Accelerator pedal position sensor
(sub) circuit high inputOpen circuit in sensor-related
circuitsON
P2135*Throttle position sensor (main and
sub) range/performance problemAbnormal sensor outputON
P2138*Accelerator pedal position sensor
(main and sub) range/performance
problemAbnormal sensor outputON
P2226Barometric pressure sensor
systemAbnormality in engine-ECU
or engine-CVT-ECU ON
U1073Bus offAbnormality in CAN bus line−
U1102ABS-ECU time-outAbnormality in CAN bus line−
U1106EPS-ECU time-outAbnormality in CAN bus line−
U1108Combination meter time-outAbnormality in CAN bus lineON
U 111 0A/C-ECU time-outAbnormality in CAN bus line−
Code No. Diagnosis item Main diagnosis contents Engine
warning lamp

CONTROLLER AREA NETWORK (CAN)
MULTIPOINT FUEL INJECTION (MPI) <4G1>13B-13
CONTROLLER AREA NETWORK (CAN)
M2132019000300
Establishing communication without fail is designed
by CAN communication protocol. Refer to Group
54C-CAN
P.54C-2 for the details about CAN.
The signals input into engine-ECU are as follows:
CAN Communication Input Signal Table
Input signal nameTransmitter ECU
Motor electric current signalEPS-ECU
Compressor signalMeter and A/C-ECU
Idle-up request signal
Cooling fan request signal
SYSTEM CONFIGURATION DIAGRAM
AK600527AC
Engine-
ECU
M.U.T.-III
EPS-ECU ETACS
-ECU
Steering
wheel
sensor G and
yaw rate
sensor
ASC-ECU
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

DIAGNOSIS SYSTEM
MULTIPOINT FUEL INJECTION (MPI) <4G1>13B-17
DATA LIST FUNCTION
The data list items are given in the table below
P2122Accelerator pedal position sensor
(main) circuit low inputOpen circuit or short-circuit in
sensor-related circuitsON
P2123Accelerator pedal position sensor
(main) circuit high inputOpen circuit in sensor-related
circuitsON
P2127Accelerator pedal position sensor
(sub) circuit low inputOpen circuit or short-circuit in
sensor-related circuitsON
P2128Accelerator pedal position sensor
(sub) circuit high inputOpen circuit in sensor-related
circuitsON
P2135Throttle position sensor (main and
sub) range/performance problemAbnormal sensor outputON
P2138Accelerator pedal position sensor
(main and sub) range/performance
problemAbnormal sensor outputON
U1073Bus offAbnormality in CAN bus line−
U1102ASC-ECU time-outAbnormality in CAN bus line−
U1106EPS-ECU time-outAbnormality in CAN bus line−
U1108Combination meter time-outAbnormality in CAN bus line−
U 111 0A/C-ECU time-outAbnormality in CAN bus line−
Code No. Diagnosis item Main diagnosis contents Engine
warning lamp
Item No.Inspection itemUnit
11Oxygen sensormV
12Air flow sensorg/s
13Intake air temperature sensor°C
14Throttle position sensor (sub)mV
16Power supply voltageV
18Cranking signal (ignition switch-ST)ON/OFF
21Engine coolant temperature sensor°C
22Crank angle sensorr/min
25Barometric pressure sensorkPa
29Inhibitor switchP or N/D, 2, L, or R
37Volumetric efficiency%
41Injectorsms
44Ignition advance°BTDC
49A/C relayON/OFF
67Stop lamp switchON/OFF
77Accelerator pedal position sensor (sub)mV
78Accelerator pedal position sensor (main)mV
79Throttle position sensor (main)mV
7EVariable valve timing phase angle°CA

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)

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.

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