2006 MITSUBISHI COLT engine

GENERAL
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-4
SCHEMATIC DIAGRAM
AC600637AC
Combination meter
ABS warning lamp 
· Brake warning lamp
· Active stability control indicator lamp
· Active stability control OFF indicator lamp
Diagnosis
Connector
Control solenoid valve (FR) OUT
Control solenoid valve (FR) IN
Control solenoid valve (FL) OUT
Control solenoid valve (FL) IN
Control solenoid valve (RR) OUT
Control solenoid valve (RR) IN
Control solenoid valve (RL) OUT
Control solenoid valve (RL) IN Suction valve (FR)
Suction valve (FL)
Cut valve (FR)
Cut valve (FL) Pump motor
Active stability
control system-ECU
Front-left wheel speed sensor
Rear-left wheel speed sensor
Front-right wheel speed sensor Rear-right wheel speed sensor
Master cylinder pressure sensor Stop lamp switch
Parking brake switch
Brake fluid level switch
Power supply to active stability
control system-ECU Steering wheel sensor
G and yaw rate sensor
Engine-ECU
Steering wheel sensor
Front-right wheel (FR)
Wheel
speed
sensor
Engine-ECU
G and yaw rate sensor
Parking
brake
switch Rear-right wheel (RR)
Wheel
speed
sensor
Stop lamp switch
Hydraulic
unit Wheel speed
sensor Rear-left
wheel (RL)
Wheel speed
sensor
Front-left wheel (FL)
Note
: CAN-bus line

CONSTRUCTION DIAGRAM
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-8
EXAMPLE OF THE EFFECT OF CONTROL
AC204504
AC204505
AC204506AC204507AB
Restraining under-steering Restraining over-steering
Avoiding under-steering Avoiding wheel spin
Improving ABS performance
Stable vehicle attitude
after avoiding obstacles
Example of TCL control
When th e driving wheel slip s (ex. during drivin g on
low
µ road), TCL send s the engine out put red u ction
sign
al to the en gine ECU in order to prevent th e driv
-
ing f o r c e loss cau s e d by t he dr iving whe e l slip . A t t h e
same time, TCL a
pplies th e brake to t he slipp i ng
driving whe
e l so that the drivin g force is applied to
t
he non-slipping driving wheel, which co ntrols the slip
o
f th e drivi ng wheel, securin g the prop er d r iving f o rce
and increa
sed steering fo rce.
Fail-safe and diagnostic functions
ASC-ECU constantly mo nitors the input and ou tput
sign
als. If an error is det ected in th e syste m ,
ASC-ECU send
s a f a il sign al a nd the correspond ing
indicato
r lamp is illuminate d or blinks. V a riou s con
-
trols are proc essed depen ding on the cause of mal-
functi on a s shown below . ASC-ECU has the
follo
wing fu nctions for easier system checks.
•Diagnosis code set
•Service dat a outp u t
•Actuator te st
All the above it ems can be diagnosed using
M.U.T
. -III.

CONSTRUCTION DIAGRAM
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-9
FAIL-SAFE FUNCTION
Diagnosis
code No.ItemABSEBDTCLASC
Engine
controlBrake
controlEngine
controlBrake
control
C1200Wheel speed sensor (FR)
system (open circuit or
short to earth or power
supply)ProhibitedEnabled
(Prohibited
when three
or more
wheels
have fault.)ProhibitedProhibitedProhibitedProhibited
C1205Wheel speed sensor (FL)
system (open circuit or
short to earth or power
supply)
C1210Wheel speed sensor (RR)
system (open circuit or
short to earth or power
supply)
C1215Wheel speed sensor (RL)
system (open circuit or
short to earth or power
supply)
C1201Wheel speed sensor (FR)
system (sensor output
error)ProhibitedEnabled
(Prohibited
when three
or more
wheels
have fault.)ProhibitedProhibitedProhibitedProhibited
C1206Wheel speed sensor (FL)
system (sensor output
error)
C1211Wheel speed sensor (RR)
system (sensor output
error)
C1216Wheel speed sensor (RL)
system (sensor output
error)
C1222Wheel sensor system
(abnormal power supply
voltage)ProhibitedEnabled
(Prohibited
when three
or more
wheels
have fault.)ProhibitedProhibitedProhibitedProhibited
C1225Wheel speed sensor
system (sensor output
error)ProhibitedProhibitedProhibitedProhibitedProhibitedProhibited

CONSTRUCTION DIAGRAM
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-10
C1226Control solenoid valve
(FR) pressure holding
systemProhibitedProhibitedProhibitedProhibitedProhibitedProhibited
C1231Control solenoid valve
(FR) decompressing
system
C1236Control solenoid valve
(FL) pressure holding
system
C1241Control solenoid valve
(FL) pressure reducing
system
C1246Control solenoid valve
(RR) pressure holding
system
C1251Control solenoid valve
(RR) pressure reducing
system
C1256Control solenoid valve
(RL) pressure holding
system
C1261Control solenoid valve
(RL) decompressing
system
C1266Motor system (seizure)ProhibitedBack-up
controlProhibitedProhibitedProhibitedProhibited
C1273Motor relay stuck OFF
C1274Motor relay stuck ON
C1276Valve relay systemEnabledEnabledEnabledEnabledProhibitedProhibited
C1278Valve relay system stuck
offEnabledEnabledEnabledEnabledProhibitedProhibited
C1279Valve relay system stuck
onProhibitedEnabledProhibitedProhibitedProhibitedProhibited
C1300Cut valve (FR/RL)
systemProhibitedProhibitedProhibitedProhibitedProhibitedProhibited
C1305Suction valve (FR/RL)
system
C1310Cut valve (FL/RR)
system
C1315Suction valve (FL/RR)
system
C1340Stop lamp switch signal
errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1345Low brake fluid levelEnabledEnabledEnabledEnabledEnabledEnabled
C1364Internal malfunction of
pressure sensorProhibitedEnabledProhibitedProhibitedProhibitedProhibited
C1366Lateral G-sensor signal
errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
Diagnosis
code No.Item ABS EBD TCL ASC
Engine
controlBrake
controlEngine
controlBrake
control

CONSTRUCTION DIAGRAM
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-11
C1371Yaw rate sensor signal
errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1385Yaw rate sensor error
C1387Lateral G-sensor errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1388Yaw rate sensor active
check errorEnabledEnabledProhibitedProhibitedProhibitedEnabled
C1394Steering wheel sensor
neutral point not learnedEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1396Engine torque
intervention rejectionEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1505Steering wheel sensor
malfunction (detection at
the ASC-ECU side)EnabledEnabledProhibitedProhibitedProhibitedProhibited
C1555Range exceeding of
steering wheel sensor
C1607Malfunction of ASC-ECUProhibitedProhibitedProhibitedProhibitedProhibitedProhibited
ASC-ECU malfunction
(CAN communication
circuit failure)EnabledEnabledProhibitedProhibitedProhibitedProhibited
C1621G and yaw rate sensor
improper installationEnabledEnabledProhibitedProhibitedProhibitedProhibited
C1860Abnormal rise of
ASC-ECU power supply
voltageProhibitedProhibitedProhibitedProhibitedProhibitedProhibited
C1861Abnormal drop of
ASC-ECU power supply
voltageProhibitedEnabledProhibitedProhibitedProhibitedProhibited
C1862Abnormal power supply
voltage of G and yaw rate
sensor (high voltage)EnabledEnabledProhibitedProhibitedProhibitedProhibited
C1863Abnormal power supply
voltage of G and yaw rate
sensor (low voltage)
U1073Bus-offEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1100Engine-related CAN
time-out errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1104Steering wheel sensor
CAN time-out errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1105G and yaw rate sensor
CAN time-out errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1406Accelerator pedal position
signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1426Engine speed signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1427Engine torque signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
Diagnosis
code No.Item ABS EBD TCL ASC
Engine
controlBrake
controlEngine
controlBrake
control

CONSTRUCTION DIAGRAM
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-12
Indicator lamp
U1428Engine's maximum torque
signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1429Engine's minimum torque
signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
U1430Engine torque request
signal errorEnabledEnabledProhibitedProhibitedProhibitedProhibited
Diagnosis
code No.Item ABS EBD TCL ASC
Engine
controlBrake
controlEngine
controlBrake
control
Diagnosis
code No.ItemBrake warning
lampABS warning lampActive stability
control system
(ASC) indicator
lamp ASC OFF indicator
lamp
C1200Wheel speed sensor
(FR) system (open or
short to earth or power
supply)Illuminates when
three wheels or
more are
abnormal.IlluminatesIlluminatesIlluminates
C1205Wheel speed sensor
(FL) system (open or
short to earth or power
supply)
C1210Wheel speed sensor
(RR) system (open or
short to earth or power
supply)
C1215Wheel speed sensor
(RL) system (open or
short to earth or power
supply)
C1201Wheel speed sensor
(FR) system (sensor
transmitting error)Illuminates when
three wheels or
more are
abnormal.IlluminatesIlluminatesIlluminates
C1206Wheel speed sensor
(FL) system (sensor
transmitting error)
C1211Wheel speed sensor
(RR) system (sensor
transmitting error)
C1216Wheel speed sensor
(RL) system (sensor
transmitting error)
C1222Wheel sensor system
(abnormal power
supply voltage)IlluminateIlluminateIlluminateIlluminate
C1225Wheel speed sensor
malfunctionIlluminatesIlluminatesIlluminatesIlluminates

CONSTRUCTION DIAGRAM
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-14
C1364Brake fluid Pressure
sensor malfunctionOffIlluminatesIlluminatesIlluminates
C1366Lateral G sensor signal
malfunctionOffOffIlluminatesIlluminates
C1371Yaw rate sensor signal
malfunctionOffOffIlluminatesIlluminates
C1385Yaw rate sensor
malfunction
C1387Lateral G-sensor
malfunctionOffOffIlluminatesIlluminates
C1388Yaw rate sensor active
check error
C1394Steering wheel sensor
neutral point not
learnedOffOffIlluminatesIlluminates
C1396Active stability control
system control
temporarily disabled
(engine torque request
rejected)OffOffIlluminatesIlluminates
C1505Steering wheel sensor
abnormality (detected
at ABS/active stability
control
system-ECU-side)OffOffIlluminatesIlluminates
C1555Output error in steering
wheel sensor
C1607Defective active
stability control
system-ECUIlluminatesIlluminatesIlluminatesIlluminates
C1621G and yaw rate sensor
improper installationOffOffIlluminateIlluminate
C1860ABS/Active stability
control system-ECU
power supply voltage
malfunction (high
voltage) IlluminatesIlluminatesIlluminatesIlluminates
C1861ABS/Active stability
control system-ECU
power supply voltage
malfunction (low
voltage) IlluminatesIlluminatesIlluminatesIlluminates
C1862G and yaw rate sensor
power supply voltage
malfunction (high
voltage) OffOffIlluminatesIlluminates
Diagnosis
code No.Item Brake warning
lampABS warning lamp Active stability
control system
(ASC) indicator
lamp ASC OFF indicator
lamp

CONSTRUCTION DIAGRAM
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-15
C1863G and yaw rate sensor
power supply voltage
malfunction (low
voltage) OffOffIlluminatesIlluminates
U1073Bus-offIlluminatesIlluminatesIlluminatesIlluminates
U1100Engine-related CAN
Timeout errorOffOffIlluminatesIlluminates
U1104Steering wheel sensor
CAN Timeout errorOffOffIlluminatesIlluminates
U1105G and yaw rate sensor
time-outOffOffIlluminatesIlluminates
U1406Failure information on
engine-A-M/T-ECU
(related to engine)OffOffIlluminatesIlluminates
U1426Failure information on
engine-A-M/T-ECU
(related to engine)OffOffIlluminatesIlluminates
U1427Failure information on
engine-A-M/T-ECU
(related to engine)
U1428Failure information on
engine-A-M/T-ECU
(related to engine)
U1429Failure information on
engine-A-M/T-ECU
(related to engine)
U1430Failure information on
engine-A-M/T-ECU
(related to engine)
Diagnosis
code No.Item Brake warning
lampABS warning lamp Active stability
control system
(ASC) indicator
lamp ASC OFF indicator
lamp