Mitsubishi Outlander (2013+). Manual - part 48

CRUISE CONTROL SYSTEM

ENGINE AND EMISSION CONTROL

17-6

4. When the SET 

− switch is operated while driving 

at the vehicle speed of low speed limit 
(approximately 40 km/h) or slower, the constant 
speed driving is not performed.

DECELERATION FUNCTION

1. When the SET 

− switch is pressed and held for 

approximately 0.5 second or longer during the 
constant speed driving, the vehicle is decelerated 
by using engine braking while the switch is 
pressed.

2. After that the SET 

− switch is released, the vehicle 

speed of that time is newly stored, and then the 
constant speed driving is performed at that speed.

3. In addition, when the SET 

− switch is pressed for 

less than approximately 0.5 second, the vehicle 
speed is decreased by approximately 1.6 km/h 
from the constant speed driving speed. The 
decelerated speed is newly stored, and then the 
constant speed driving is performed at that speed.

4. When the SET 

− switch is pressed and held, and 

the vehicle speed is decelerated to low speed limit 
(approximately 40 km/h) , the low speed limit will 
be maintained.

RESUME FUNCTION

1. During the constant speed driving, press the 

CANCEL switch, or depress the brake pedal to 
cancel the constant speed driving.

2. Afterward, when the RES + switch is pressed 

while driving at a vehicle speed of low speed limit 
(approximately 40 km/h) or more, a constant 
speed driving is performed at the vehicle speed 
stored when the constant speed driving was 
cancelled.

ACCELERATION FUNCTION

1. During the constant speed driving, when the RES 

+ switch is pressed and held for approximately 0.5 
seconds or longer, the vehicle is accelerated with 
the specified acceleration while the switch is 
pressed.

2. After that the RES + switch is released, the 

vehicle speed of that time is newly stored, and 
then the constant speed driving is performed at 
that speed.

3. In addition when the RES + switch is pressed for 

less than approximately 0.5 second, the vehicle 
speed is increased by approximately 1.6 km/h 
from the constant speed driving speed. The 
accelerated vehicle speed is newly stored, and 
then the constant speed driving is performed at 
that speed.

CANCEL FUNCTION

When any of the following conditions are satisfied, 
the constant speed driving will be cancelled.

• The cruise control system is stopped by the 

pressing the cruise control ON/OFF switch.

• The CANCEL switch is pressed.

• The brake pedal is depressed.

• The selector lever is shifted to the "N" position.

• The vehicle speed becomes low speed limit 

(approximately 40 km/h) or less. 

• The vehicle speed is decreased by 15 km/h or 

more from the setting vehicle speed.

• An abnormality occurs in the vehicle speed sig-

nal.

• The ASC is operated.

• An abnormality occurs in CVT-ECU.

• An abnormality occurs in the CAN communica-

tion.

LAST STATUS MEMORY FUNCTION

The system stores cruise control ON/OFF status of 
the cruise control when the ignition switch is turned 
off. Then, when the ignition switch is turned on the 
next time, the system will resume the stored status.

FAIL-SAFE FUNCTION

When one of the following conditions is met, the 
cruise control system function will be suspended until 
the system returns to normal condition. Also, when 
one of the following conditions is met, a constant 
speed driving is cancelled immediately.

• An abnormality occurs in the cruise control 

switch.

• An abnormality occurs in the stop lamp signal.

When one of the following conditions is met, unless 
the vehicle is stopped to turn the ignition switch to 
the "LOCK" (OFF) position, the cruise control system 
function will be suspended even if the system returns 
to the normal state. Also, one of the following condi-
tions is met, a constant speed driving is cancelled 
immediately.

• Engine-ECU abnormality.

• An abnormality occurs in the vehicle speed sig-

nal.

• Throttle position sensor abnormality.

• Accelerator pedal position sensor abnormality.

DIAGNOSIS FUNCTION

To ease the system inspection, the diagnosis code 
inspection, data list inspection is available by 
M.U.T.-III.

NOTE: For the diagnosis code items and input check 
code items, refer to the Workshop Manual.

EMISSION CONTROL<MPI>

ENGINE AND EMISSION CONTROL

17-7

EMISSION CONTROL<MPI>

GENERAL INFORMATION

M2171000101756

The emission control is basically the same as the 
4B1 engine mounted on the ASX.

SYSTEM CONFIGURATION DIAGRAM

Exhaust gas cleaning devices list

AKB00864

Purge control 
solenoid valve

Canister

Air

From 
fuel pump

Positive
crankcase
ventilation
valve

Oxygen sensor (front)

Oxygen sensor (rear)

Catalytic 
converter

AB

Air cleaner

Catalytic 
converter

System

Objective / Function

Composition parts

Crankcase ventilation system

HC decrease
Re-combustion of blow-by 
gas.

Positive crankcase ventilation 
(PCV) valve

Evaporative emission control system

HC decrease
Re-combustion of blow-by 
gas.

• Canister

• Purge control solenoid valve

EMISSION CONTROL<MPI>

ENGINE AND EMISSION CONTROL

17-8

CRANKCASE VENTILATION SYSTEM

M2171000400583

A blow-by gas reduction device prevents blow-by 
gas from being expelled into the atmosphere and is 
of closed type. A positive crankcase ventilation 
(PCV) valve is provided in the ventilation hose from 
the rocker cover to the inlet manifold. During low load 

driving, clean air is supplied to the crankcase by the 
air intake hose via the breather hose and rocker 

Emission reduction 
systems

Air-fuel ratio 
feedback control

Decrease of CO, HC and 
NOx
Controls air-fuel ratio of 
air-fuel mixture to become 
theoretical air-fuel ratio 
(about 14.7), which is when 
the 3-way catalytic 
converter's cleaning 
performance is best. It also 
controls optimum fuel 
supply based on coolant 
temperature, driving 
conditions etc.

• Engine-ECU

• Air flow sensor

• Injector

• Oxygen sensor

• Crank angle sensor etc.

Catalytic 
converter

Decrease of CO, HC and 
NOx
It facilitates oxidation of CO 
and HC and reduction of 
NOx so that all 3 component 
gases are cleaned 
simultaneously.

Monolith catalyst

System

Objective / Function

Composition parts

AKB00825AB

Positive
crankcase
ventilation
valve    

Ventilation hose 

Breather hose

Air inlet

Flow of blow-by gas and clean air (low load area)

Flow of blow-by gas and clean air (high load area)

EMISSION CONTROL<MPI>

ENGINE AND EMISSION CONTROL

17-9

cover, and it mixes with the blow-by gas in the crank-
case. The blow-by gas in the crankcase is induced to 
the inlet manifold through the rocker cover and PCV 
valve. During high load driving, blow-by gas in the 
crankcase is induced to the inlet manifold through 
the rocker cover and PCV valve and at the same 
time also via the air intake hose and throttle body 
due to negative pressure in the air cleaner.

POSITIVE CRANKCASE VENTILATION 
(PCV) VALVE

PCV valve lifts the plunger according to negative 
pressure at the inlet manifold to create appropriate 
ventilation for the crankcase.

EVAPORATIVE EMISSION CONTROL SYSTEM

M2171000200590

HC (hydrocarbon) generated in the fuel tank are 
adsorbed by the active carbon in the canister and 
stored. HC stored in the canister is introduced to the 
inlet manifold when engine is in operation where it is 
mixed with intake air and combusted. Engine-ECU 
introduces optimum HC amount according to driving 
conditions and so performs duty control on the purge 
control solenoid valve. Also, the purge control sole-
noid valve is closed during deceleration or immedi-
ately after engine start to restrict change in air-fuel 
ratio and prevent engine from stalling.

PURGE CONTROL SOLENOID VALVE

AK602324 AF

Plunger

From
rocker
cover

To inlet
manifold

Spring

AKB00826AB

Engine-ECU

Air flow sensor

Intake air temperature sensor

Manifold absolute
pressure sensor

Engine coolant
temperature sensor

Crank angle sensor

Throttle position sensor

Battery

Purge control
solenoid valve

Canister

AK602742AF

A

B

To canister

To inlet manifold