Mitsubishi Outlander XL. Manual - part 1241

ZK600239

ECM

Resistance k

Ω

Output voltage V

5 V

AA01

Engine coolant
temperature sensor
(thermistor)

Engine coolant
temperature  C ( F)

Engine coolant
temperature  C ( F)

THROTTLE POSITION SENSOR

ZK603447 AA00

Throttle body

Throttle
position
sensor

The  throttle  position  sensor  is  installed  in  the  throttle  body.
Throttle position sensor outputs voltage to ECM based on the
throttle shaft rotation angle. ECM uses this signal to detect the
throttle valve opening angle to perform throttle actuator control
motor feedback control. This throttle position sensor uses Hall
IC and is a non-contact type.

 

STRUCTURE AND SYSTEM

ZK602509AA00

Yoke

Fixed to the motor cover

Hall IC

Stator

Magnet

Throttle shaft

To ECM

Throttle  position  sensor  is  composed  of  a  permanent  magnet
fixed on the throttle shaft, Hall IC that outputs voltage according
to magnetic flux density and a stator that efficiently introduces
magnetic flux from the permanent magnet to Hall IC.

13A-12

MULTIPORT FUEL SYSTEM (MFI)

SENSOR

ZK602510 AA00

Magnet flux

Fully opened

Fully closed

Hall IC

Half opened

Hall IC

Magnetic  flux  density  at  Hall  IC  is  proportional  to  the  output
voltage.
Throttle position sensor has 2 output systems - throttle position
sensor (main) and throttle position sensor (sub), and the output
voltage  is  output  to  ECM.  When  throttle  valve  turns,  output
voltage  of  throttle  position  sensor  (main)  and  throttle  position
sensor (sub) changes. This allows ECM to detect actual throttle
opening angle. ECM uses this output voltage for throttle actuator
control  motor  feedback  control.  Also,  ECM  compares  output
voltage of the throttle position sensor (main) and throttle position
sensor  (sub)  to  check  for  abnormality  in  the  throttle  position
sensor.  The  relationship  between  throttle  opening  angle  and
output voltage of the throttle position sensor (main) and throttle
position sensor (sub) is as shown in the figure below.

 

ZK600243

5V

5V

Throttle position sensor

Throttle valve opening angle

5

2.5

4.5

0.5

0

AA01

Throttle position
sensor (sub)

Throttle position
sensor (sub)

Throttle position
sensor (main)

Throttle position
sensor (main)

Hall IC

ECM

Fully
closed

Fully
opened

Hall IC

Output voltage V

MULTIPORT FUEL SYSTEM (MFI)

13A-13

SENSOR

ACCELERATOR PEDAL POSITION SENSOR

ZK500422AA00

Accelerator pedal
position sensor
connector

Accelerator pedal arm

Accelerator pedal position sensor is integrated with accelerator
pedal,  and  detects  accelerator  opening  angle.  ECM  uses  the
output voltage of this sensor to control appropriate throttle valve
opening angle and fuel injection volume. This accelerator pedal
position sensor uses Hall IC and is a non-contact type.

 

STRUCTURE AND SYSTEM

ZK500423AA00

Magnet

Pedal shaft

Hall IC

Accelerator pedal position sensor is composed of a permanent
magnet fixed on the magnet carrier of the pedal shaft, Hall IC
outputs voltage according to magnetic flux density and a stator
that  efficiently  introduces  magnetic  flux  from  the  permanent
magnet to Hall IC.

13A-14

MULTIPORT FUEL SYSTEM (MFI)

SENSOR

ZK500424

 S 

 N

 S 

 N

 N

 S

 N

 S

AA00

Hall IC

Hall IC

Magnetic flux density
: Minimum

Magnetic flux density
: Maximum

Magnetic flux

Magnetic  flux  density  at  Hall  IC  is  proportional  to  the  output
voltage.
The accelerator pedal position sensor has 2 output systems -
accelerator pedal position sensor (main) and accelerator pedal
position sensor (sub), and the output voltage is output to ECM.
According to depression of the accelerator pedal, output voltage
of the accelerator pedal position sensor (main) and accelerator
pedal position sensor (sub) changes. This allows ECM to detect
the  actual  accelerator  pedal  depression  amount.  ECM  uses
accelerator  pedal  position  sensor  (main)  output  voltage  for
appropriate throttle valve opening angle control and fuel injection
volume  control.  Also,  ECM  compares  output  voltage  of  the
accelerator pedal position sensor (main) and accelerator pedal
position  sensor  (sub)  to  check  for  abnormality  in  sensor.  The
relationship  between  accelerator  opening  angle  and  output
voltage  of  the  accelerator  pedal  position  sensor  (main)  and
accelerator pedal position sensor (sub) is as shown in the figure
below.

 

ZK600247

5 V

5 V

5

4

3

2

1

0

AA01

Accelerator pedal position sensor

Accelerator pedal
position sensor (main)

Accelerator pedal
position sensor (main)

Accelerator
pedal stroke

Accelerator pedal
position sensor (sub)

Accelerator pedal
position sensor (sub)

Hall IC

Hall IC

Fully
opened

ECM

Output voltage V

MULTIPORT FUEL SYSTEM (MFI)

13A-15

SENSOR