2006 MITSUBISHI COLT brake sensor

TECHNICAL FEATURES
GENERAL00-26
SCHEMATIC DIAGRAM
AC508098
Front impact against
another vehicleor
Front impact against a
solid surface Analogue G-sensor
Ignition judgment
Shock
above a
certain
level
Ignition signal
SRS-ECU
Front air bag safing
G-sensor
Front impact
sensor (RH)
Front impact
sensor (LH)
AB
In case of a
frontal collision, if the front imp act sensor
in the engine comp artment, the analogue G-sensor
in the SRS-ECU and t he front air bag safing sensor
simult aneously de tect an imp act th at excee d a cer
-
ta in threshold (turn ON), the SRS-ECU sen ds an
ignition signal to the air bag modules (squ ibs) and
seat belt with pre-te nsioners (squibs) on the driver
and p asseng er sides, thus inflating the air bag s and
operating the seat belt with pre -tensioner s.
SEAT BEL T RETRACT OR WITH FORCE
LIMITE R
The driver ’s /front p asseng er’s seat belt retractor has
been e quipped with a force limit er. The force limiter
is a device which operat es when a predetermined
force is applied, an d limits the for ce.
OPERA TION
1. If collision energy is transmit ted to the seat belt,
th e ELR mechanism will oper ate to lock the seat
be lt.
AC100083
Torsion bar
Spindle
Belt
AC
2.
Then, if the en ergy increase s to a prede termined
value , the to rsion bar will b e distorted . As th e
spind le rot ate s tog ether with the t orsion bar , the seat b
elt webb ing is p ulle d out, reducing th e
imp act against t he occupants.
REAR SEA T BELT WITH CHILD SEA T FIX-
ING MECHANISM (ALR*)
The child seat fixing mechanism h as b een ad opted
to easily and securely fix the child seat that is not
comp atible with ISO FIX.
NO TE: *ALR: Automatic Lockin g Retractor
STEERING SHAFT AND STEERING COL-
UMN
The impact ab sorption mech anism in combin ation of
retract able steerin g shaft and steering co lumn disen
-
gagement mecha nism has been ad opted t o alle viate
the imp act from th e steering wheel to the d rive r.
BRAKE PEDAL AND PA RKING BRAKE
PEDAL
The bra ke pe dal b ackward mo vement restraint
mechanism to restrain the backward movement of
the brake p edal to the minimum at the time o f f ront al
collision h as b een ad opted so that the impact to th e
lower limb s of the driver can be alleviated.
CHILD SEAT FIXING BAR COMP ATIBLE
WITH ISO FIX*
The an chor bar has been equipped a s st andard fo r
easily and secu rely fixing the child seat comp atible
with ISO FIX.
NO TE: *ISO F IX: ISO (In ternational Orga nization for
S tand ardizatio n) complied child se at fixing method

ComponentNo.Function
SensorWheel speed sensor1Sends alternating current signals at frequencies which are
proportional to the rotation speeds of each wheel to the
active stability control system-ECU
Magnetic encoder for wheel
speed detection2The wheel speed sensor is a pulse generator. When the
magnetic encoder for wheel speed detection (a plate on
which north and south pole sides of the magnets are
arranged alternately) rotates, it outputs frequency pulse
signal in proportion to each wheel speed.
Stop lamp switch3Sends a signal to the active stability control system-ECU
to indicate whether the brake pedal is depressed or not.
Parking brake switch4Outputs the signal indicating whether the parking brake
lever is pulled or not to ASC-ECU.
Brake fluid level switch5Outputs the signal indicating whether the brake fluid is
filled to the lowest limit level or not to ASC-ECU.
G and yaw rate sensor6Detects the lateral acceleration and the yaw rate for the
vehicle. Then it sends a signal through the CAN bus line to
the active stability control system-ECU.
Steering wheel sensor7Detects the steering wheel angle, and sends a signal to
the active stability control system-ECU through the CAN
bus line.
ASC OFF switch8Outputs the ASC ON/OFF signal to ASC-ECU.
Pressure sensor9Is incorporated in the hydraulic unit, and informs the active
stability control system-ECU of the brake fluid pressure in
the master cylinder.
ActuatorHydraulic unit10Drives the solenoid valves and pump motor according to
signals from the ABS/active stability control system-ECU in
order to control the brake hydraulic pressure for each wheel.
ABS warning lamp11Illuminates in response to signals from the active stability
control system-ECU when a problem develops in the
system.
Brake warning lamp12Illuminates in response to signals from the active stability
control system-ECU when a problem develops in the EBD
system or the brake fluid level is low.
Active stability control system
(ASC) indicator lamp 13Receives a signal from the active stability control
system-ECU, and flashes to inform the driver that the
system is operating, or illuminates to inform the driver of
system shutdown.
ASC OFF indicator lamp14Informs the driver of the ASC shutdown by illuminating
with the signal from ASC-ECU.
Diagnosis connector15Sets the diagnosis codes and allows communication with
the M.U.T.-III.
Engine-ECU16Receives a signal from the active stability control
system-ECU to control the engine output.
Anti-skid Brake/Active Stability Control
System control unit (ABS/active stability
control system-ECU)17Controls actuators (described above) based on the signals
coming from each sensor.
Controls the self-diagnostics and fail-safe functions.
Controls the diagnostic function (M.U.T.-III compatible).
GENERAL
ACTIVE STABILITY CONTROL SYSTEM (ASC)35C-3

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-5
CONSTRUCTION DIAGRAM
SENSORM2357000300036
G AND YAW RATE SENSOR
AC600804ACG and yaw rate sensor
Parking brake lever
This sens or , inst alled u nder th e ce ntre conso l e,
detect
s the yaw rate a nd lateral accelera tion of the
vehicle
.
STEERING WHEEL SENSOR
AC600803ACSteering wheel sensor
This sens or , a t t a ched to the column switch, det ect s
the rot
a tional angle of the stee ring whe e l.
ASC OFF SWITCH
AC600923ABASC OFF switch
Th is swit ch is at t a che d on the inst rument p a nel to the
right side
of the driver's seat. The ASC system ca n
be turn
ed OFF by pressing this ASC OFF switch for
3 seconds when t
he ig nition switch is ON. By pre s s
-
ing the switch a gain, the system can be turned ON.
NOTE: .
•Whe n the ASC syste m is turn ed OFF , the ASC
OFF ind
i ca tor illuminat es.
•If the ASC OFF switch is presse d for 15 se cond s
or
more , the ope ratio nal error prevention function
activates, and th
e ASC system can not be turned
OFF until the
ign i tion switch is turn ed to t he ON
position ag
ain.
ASC OFF switch ope ra tion and system operation
ASC OFF switch controlTCL functionStability control function
ON (ASC OFF indicator goes out.)EnabledEnabled
OFF (ASC OFF indicator
illuminates.)ProhibitedProhibited
NOTE: The ASC function st a r t s the co ntrol when t he
vehicle
spe ed is 10 km/h or mo re.

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