Mitsubishi Outlander XL. Manual — part 1243

ZK600259AA01

5V

ECM

Knock sensor

Piezoelectric element

BAROMETRIC PRESSURE SENSOR

ZK602514 AA00

Barometric pressure
sensor (built in ECM)

A barometric pressure sensor is built into ECM. The barometric
pressure sensor is a semiconductor diffused pressure element
which outputs voltage to ECM according to atmospheric
pressure. ECM uses this output voltage to sense the altitude of
the vehicle and compensates fuel injection volume to achieve
the appropriate air-fuel ratio for that altitude.

ENGINE OIL PRESSURE SWITCH (for MIVEC)

AA00

ZK600263

Engine oil pressure
switch (for MIVEC)

Terminal

Oil pressure

An engine oil pressure switch (for MIVEC) is installed on the
engine oil control valve housing. The engine oil pressure switch
(for MIVEC) uses contact switch to detect High/Low of oil
pressure. When the engine oil control valve functions and oil
pressure in the oil path rises above a prescribed value the
contact point of the engine oil pressure switch (for MIVEC)
opens. Thus, ECM detects that oil pressure is above the
prescribed value and checks that MIVEC is functioning.

13A-20

MULTIPORT FUEL SYSTEM (MFI)

SENSOR

ZK600264

ON

OFF

AA01

12

0

ON

OFF

ECM terminal voltage V

Oil pressure:low

Oil pressure: high

Operating pressure

Oil pressure kPa (in.Hg)

ECM

Engine oil pressure switch
(for MIVEC)

ENGINE OIL PRESSURE SWITCH (for warning lamp)

ZK500439AA00

Oil
Pressure

Contact switch

The engine oil pressure switch (for warning lamp) is installed to
the cylinder block at the left side.
The engine oil pressure switch (for warning lamp) detects
whether the oil pressure is high or low using the contact switch.
When the oil pressure becomes higher than the specified value
after the engine starts, the contact point of the engine oil
pressure switch (for warning lamp) opens.
This allows the ECM to detect the oil pressure is higher than the
specified value. The ECM outputs the OFF signal to the
combination meter through the CAN and then turns off the oil
pressure warning lamp.

ZK600264

ON

OFF

AA02

12

0

ON

OFF

ECM terminal voltage V

Oil pressure:low

Oil pressure: high

Operating pressure

Oil pressure kPa (in.Hg)

ECM

Engine oil
pressure switch
(for warning lamp)

MULTIPORT FUEL SYSTEM (MFI)

13A-21

SENSOR

POWER STEERING PRESSURE SENSOR

ZK602515 AA00

Power steering
pressure sensor

Oil pressure

A power steering pressure sensor switch is installed on the
power steering fluid pipe. The power steering pressure sensor
uses a piezo resistive semiconductor to detect the power
steering fluid pressure and outputs voltage to ECM according to
the power steering fluid pressure. ECM performs idle-up
according to the voltage and prevents reduction in engine speed
due to power steering load and so maintains stable idle speed.

ZK602614

5V

0

5V

Ground

Output voltage V

Power steering fluid
pressure MPa (in. Hg)

Power steering pressure sensor

ECM

Power supply

Output signal

AA00

FUEL TANK DIFFERENTIAL PRESSURE SENSOR

Pressure

Fuel tank differential
pressure sensor

ZK602527AA00

The fuel tank differential pressure sensor is installed to the fuel
pump module. The fuel tank differential pressure sensor outputs
the voltage to the ECM using the piezo resistive semiconductor
in accordance with the difference between pressure in the fuel
tank and the pressure of the atmosphere. When monitoring the
evaporative leak, the ECM detects malfunctions of the
evaporative emission control system by monitoring the amount
of output voltage changes from this sensor. The sensor
characteristics are as shown in the diagram.

13A-22

MULTIPORT FUEL SYSTEM (MFI)

SENSOR

ZK602528

5V

0

5V

Ground

Output voltage V

Pressure kPa (in. Hg)

Fuel tank differential pressure sensor

ECM

Power supply

Output signal

AA00

FUEL TANK TEMPERATURE SENSOR

ZK602529AA00

Sensory part
(thermistor)

Fuel tank
temperature
sensor

The fuel tank temperature sensor is installed to the fuel pump
module. The fuel tank temperature sensor detects the
temperature inside the fuel tank using the resistance change in
the thermistor and outputs the voltage to the ECM in accordance
with the temperature inside the fuel tank. The ECM monitors the
evaporative leak in accordance with the fuel tank temperature.
The sensor characteristics are as shown in the diagram.

ZK600239

ECM

Resistance k

Ω

Output voltage V

5 V

AA02

Fuel tank temperature
sensor (thermistor)

Fuel tank
temperature C ( F)

Fuel tank
temperature C ( F)

MULTIPORT FUEL SYSTEM (MFI)

13A-23

SENSOR