2006 MITSUBISHI COLT sensor

ELECTRICAL POWER STEERING
POWER STEERING37-9
STEERING GEAR
M2370003000239
AC208175
AC208174AC206443AC
NeutralSub
Torque sensor
Steered to leftMain
Steered to right
Output voltage (V)
Torque sensor characteristic chart
52.5
The torqu e sensor which detect s a opera t ed force of
the steerin
g wheel is inst alled in the stee ring g ear .
Whe
n th e st eer in g whe e l is tu rn ed , t h e ste e ring f o rce
is d
e tected by the to rque sensor . At the same time,
2-way supp
ly volt a ge signa l (main and sub ) are input
to the e
l ectric power steerin g-ECU.
MOT O RM237000 1 1 0003 6
AC208523
AC206443
AC207634
AB
View AMotor
Motor
View A
The mot
o r is inst alled in th e steering gea r . The ste e r-
ing motor is applied with a con t rol current sent from
the electric po
we r stee ring-ECU and genera t es t he
assist
torque to the steering ge ar according to the
steering op
eratio n.

ELECTRICAL POWER STEERING
POWER STEERING37-11
OPERATION
M2370000700110
IGNITION SWITCH ON
Ignition supply voltage is applied to the electric
power steering-ECU, and the ECU enters standby
mode.
IGNITION SWITCH ON
AC601668AC207635 AB
Electric power
steering-ECU
OFF
OFF MotorMotor current signal
Maximum limit value (50A)
Engine speed
Engine speed
ON
500 r/min or 15 km/h
max 0.5s 0.7s
Motor output Determination of motor
control start Temporary increase of motor
assist limit value
Engine-CVT-ECU or
engine-ECU
1.
Whe n th e e ngine is st arted, the en gine sp eed sig-
nal sent from the en gine -CVT -ECU or
eng
ine-ECU is inp u t to th e ele c tric power steer
-
ing-ECU.
2. Af ter st a r ting the engine, the electric power ste e r-
ing-ECU judges the engin e st atu s "ENGINE
SPEED ON"
when the engine speed reaches 500
r/min or
the vehicle speed reaches 1 5 km/h or
more, the
n the p o wer assist functio n is ready .
STEERING WHEEL OPERAT ION
AC400096
AC206443AB
Electric power
steering-ECU
Torque
sensor
Torque sensor
Motor Motor
Motor current
Torque sensor signal (main)
Torque sensor signal (sub)
F A IL- S AFE FUNCTION OPERA T ION
Duri ng t h e f a il -s af e m o d e , t h e el ect r ic powe r st ee rin g
operate
s as a manual ste e ring system.

MULTI-DISTRIBUTION INPUT/OUTPUT BY CIRCUIT
SMART WIRING SYSTEM (SWS)54B-4
MULTI-DISTRIBUTION INPUT/OUTPUT BY CIRCUIT
M2541002000649
Multi-distribution is employed by the following cir-
cuits. The relation of the input switches, sensors,
ECUs connected by multi-distribution lines, and out
-
puts are also shown below.
Buzzer
•Lamp reminder buzzer function
•Door-ajar warning buzzer function
•
AC601725AB
• Ignition switch (IG1)
• Driver's door switch
• Hazard lamp switch
Combination meter
• Vehicle speed signal 
• Ignition switch (IG1) ETACS-ECU
Circuit and Input Switch
ECUs and Switches
Connected by
Multi-DistributionOutput
Buzzer (built-in ETACS-ECU)
: CAN communication line : SWS communication line
Column switch
(Lighting or turn
signal lamp
switch)
T u rn-sign a l op eratio n so und fun c tion
Keyless e n try
•Multi-mode keyless en try system
•Keyless entry hazard a n swerba ck function
•
AC401127AB
• Respective door switches
• Key reminder switch
• Keyless entry transmitter ETACS-ECU
•
Electric retractable remote
controlled mirror
• Respective turn signal lamps
• Room lamp
Circuit and Input Switch
ECUs and Switches
Connected by
Multi-DistributionOutput
Keyless ent
ry roo m la mp a n swerba ck funct i on

GROUP 52B
SUPPLEMENTAL RESTRAINT
SYSTEM (SRS)
CONTENTS
GENERAL INFORMATIO N . . . . . . . .52B-2
SYSTEM OPERATION. . . . . . . . . . . .52B-8
FRONT AIR BAG AND SEAT BELT WITH
PRE-TENSIONER. . . . . . . . . . . . . . . . . . . . 52B-8
SIDE AND CURTAIN AIR BAGS . . . . . . . . 52B-9
SYSTEM CONSTRUCTION . . . . . . . .52B-10
DRIVER'S SIDE AIR BAG MODULE . . . . . 52B-10
PASSENGER'S (FRONT) AIR BAG
MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . 52B-10
SIDE-AIRBAG MODULE . . . . . . . . . . . . . . . 52B-10
CURTAIN AIR BAG MODULE . . . . . . . . . . . 52B-11
FRONT IMPACT SENSOR . . . . . . . . . . . . . 52B-12
SIDE IMPACT SENSOR . . . . . . . . . . . . . . . 52B-12
SEAT BELT WITH PRE-TENSIONER. . . . . 52B-13
SRS-ECU . . . . . . . . . . . . . . . . . . . . . . . . . . 52B-13
SRS AIR BAG SPECIAL CONNECTOR . . . 52B-17

GENERAL INFORMATION
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)52B-3
CONSTRUCTION DIAGRAM
AC601639
AC207323
AC207321AC207230
AC601468
Driver's air bag
modulePassenger's (front)
air bag module
SRS-ECU
Diagnosis connector
Clock springSRS warning lamp
Seat belt with
pre-tensioner
Curtain air bag module
Front impact sensor
SRS-ECUSide impact sensor
Side-airbag module
AB
SRS warning lamp
SRS warning lamp

GENERAL INFORMATION
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)52B-4
SRS SYSTEM CIRCUIT DIAGRAM
AC401544
Ignition switch (IG1)
Combination
meter (SRS
warning lamp)
No.40
7.5A
Driver's
air bag
module ON
OFF OFF
ON ON
OFF
ON
OFF
ON
ON
OFF
Passenger's
(front)
air bag
moduleClock spring
ON
OFF
OFF ON
OFF ON
OFF
ON
OFF
ON
ON
OFF
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Connector
lock switch*
Connector
lock switch* Connector
lock switch*Connector
lock switch*
Seat belt
pre-tensioner
(LH)
Seat belt
pre-tensioner
(RH)
Side-airbag
module
(LH)
Side-airbag
module
(RH)
Curtain air bag
module
(LH)
Curtain air bag
module
(RH) ON
OFF
OFF ON
ON
OFF
ON
ON
OFF
OFFONON
OFF
OFFON
OFF
ON
Connector
lock switch*
Connector
lock switch* Connector
lock switch*
OFFON
OFF
Connector
lock switch*Side impact
sensor (RH)
Side impact
sensor (LH)
Diagnosis
connector
Front impact
sensor (RH)
Front impact
sensor (LH)
Note
*: Connector
connected: ON Connector
disconnected: OFF
AB
SRS-ECU
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
OFF OFF
No.37
7.5A

GENERAL INFORMATION
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)52B-5
CAUTION LABELS
Labels to indicate cautions regarding the handling
and the services of SRS air bag are attached on the
position shown in the following illustration.
AC510120
AC206616
AC206284
AC206096AC206281
AC206097
AC400175
AC401506AC207325AC207330
AC402445
AB
A Clock spring
B
Driver's air bag module
Passenger's (front)
air bag module
SRS-ECUSunvisor
F
Seat belt with pre-tensioner
(driver's and front passenger's seat)
Hood
G Front impact sensor
IJK
Curtain air bag module
Side-airbag module
Instrument panel C
D EE
H

SYSTEM OPERATION
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)52B-8
SYSTEM OPERATION
FRONT AIR BAG AND SEAT BELT WITH
PRE-TENSIONER
M2521000700059
AC313906
Frontal collision against
another vehicleor
Frontal collision 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
front a l collision, if the front imp a ct sensor
in the
engine comp artment, th e ana logue G-sensor
in the
SRS-ECU and t he fron t air b ag sa fing sensor
simult
ane ously de tect an imp a ct th at excee d a cer
-
ta in threshold (turn ON), the SRS-ECU sen d s an
ignition
sign al to the air bag modu les (squ ibs) and
seat
belt p r e-tension e rs (squib s ) on the driver and
p
a sse nger sid e s, thus inflating the air bags an d op er
-
ating the seat be lt pre - tensioners.