Mitsubishi Outlander XL. Manual — part 1258

GENERAL INFORMATION

M21702000001USA0000010000

By using the auto-cruise control, the driver can drive
at preferred speeds in a range of approximately 40 to
160 km/h (25 to 100 mph) without depressing the
accelerator pedal.

For this auto-cruise control system, in conjunction with
the electronic throttle valve control system, the engine
control module (ECM) electronically controls the
throttle valve.

CONSTRUCTION DIAGRAM

ZC601485

ZC601822

ZC601484

ZC601483

ZC601051

ZC601159

Stoplight switch

Engine control
module (ECM)

Transmission
range switch

Throttle body
[Built-in
throttle position sensor
(TP sensor)
and
throttle actuator control motor
(TAC motor)]

"CRUISE" indicator light

Transaxle
control module
(TCM)

Data link connector

Accelerator pedal
[Built-in accelerator
pedal position sensor
(APP sensor)]

Auto-cruise
control switch

Brake pedal
assembly

Bottom cover
assembly
(driver's side)

0000

17b-2

AUTO-CRUISE CONTROL SYSTEM

GENERAL INFORMATION

COMPONENTS AND FUNCTIONS

Component

Function

Accelerator pedal position sensor (APP sensor)

Informs the ECM of the accelerator pedal depression.

"CRUISE" indicator light

The light is included in the combination meter and
illuminates when the "ON OFF" switch is pressed
(auto-cruise control system: ON).

Auto-cruise control switch "ON OFF" switch

Power switch for auto-cruise control system.

"ACC RES" switch

Vehicle speed is set with the "ACC RES" switch and
"COAST SET" switch.

"COAST SET" switch
"CANCEL" switch

Cancels the cruise speed setting.

Cancel system

Stoplight switch

｠

Because the constant speed driving is canceled by
the brake operation, it detects the brake pedal
status.

｠

As for the stoplight switch, two built-in switches, the
stoplight switch which is also used for the stoplight
illumination and the brake switch which is used
exclusively for the auto-cruise control, are
integrated, and thus the reliability is enhanced.

Transmission

range

switch

Because the constant speed driving is cancelled by
the selector lever operation, it detects the "N" position.

Data link connector

If the M.U.T.-III scan tool is connected, the input check
code from the ECM can be read.

Engine control module (ECM)

｠

Based on the input signal from each sensor and
switch, it outputs the throttle opening instruction
signal to the throttle actuator control motor (TAC
motor).

｠

Based on the input signal from each sensor and
switch, it outputs the transaxle control signal to the
TCM.

｠

Based on the output shaft speed sensor signal from
the TCM, it calculates the vehicle speed.

｠

Outputs the ON/OFF signals of "CRUISE" indicator
light and auto-cruise control system.

｠

The diagnostic trouble code signal is sent to the
"CRUISE" indicator light.

｠

The input check code are sent to the data link
connector.

Throttle actuator control motor (TAC motor)

The throttle valve opens and closes in response to the
throttle angle control signal from the ECM.

Throttle position sensor (TP sensor)

Informs the ECM of the throttle valve opening angle.

Transaxle control module (TCM)

｠

Based on the transaxle control signal from the
ECM, it controls the transaxle.

｠

Outputs the signal from the transaxle output shaft
speed sensor to the ECU.

AUTO-CRUISE CONTROL SYSTEM

17b-3

GENERAL INFORMATION

CONSTRUCTION AND OPERATION

M21702000002USA0000010000

SYSTEM OUTLINE

The ECM calculates the auto-cruise control system
operation status when the control section of the auto-
cruise control system inside the ECM receives the
input signals of the auto-cruise control switch, vehicle
speed, and cancel system (stoplight switch and
transmission range switch). To the engine control
section it sends the target accelerator angle value for

auto-cruise control system; to the TCM it issues a
command to transaxle control; and to the gauge it
issues an ON/OFF command for the "CRUISE"
indicator light.
In the engine control section, the target throttle angle
value is calculated from the target acceleration value
for auto-cruise control system and the actual
accelerator angle value, and the vehicle speed is
controlled by applying the TAC motor.

BLOCK DIAGRAM

ZC6014860000

Cancel system
(Stoplight switch,
transmission range switch)

Auto-cruise control switch

TCM

"CRUISE" indicator light

ECM

TAC motor

Target accelerator
pedal opening
angle signal

Engine control section

Cruise control section

Actual accelerator pedal
opening angle signal

Transaxle
control signal

Target throttle
valve opening
angle signal

Vehicle speed signal

Output shaft
speed sensor
signal

"CRUISE"
indicator light
ON/OFF signal

SYSTEM FUNCTIONS

Set function

1.

During driving with the vehicle speed range from
approximately 40 to 160 km/h (25 to 100 mph),
press the "COAST SET" switch, and then release
the hand from the "COAST SET" switch.

2.

The vehicle speed of when the "COAST SET"
switch is released is memorized. Thereafter, the
constant speed driving is performed at that vehicle
speed.

3.

When the "COAST SET" switch is operated during
the driving with the vehicle speed of approximately

160 km/h (100 mph) or more, the constant speed
driving will not be performed.

Coast function

1.

When the "COAST SET" switch is continued to be
pressed for 0.5 seconds or longer during constant
speed driving, the throttle valve becomes fully
closed while the switch is pressed, and the vehicle
is decelerated.

17b-4

AUTO-CRUISE CONTROL SYSTEM

CONSTRUCTION AND OPERATION

2.

When the "COAST SET" switch is released, the
vehicle speed of that time is newly memorized.
Thereafter, the constant speed driving is performed
at that vehicle speed.

3.

Also when the "COAST SET" switch is pressed for
less than 0.5 seconds, the vehicle is decelerated
1.6 km/h (1 mph) from the vehicle speed of constant
speed driving, and the decelerated vehicle speed is
newly memorized. Thereafter, the constant speed
driving is performed at that vehicle speed.

4.

When the "COAST SET" switch is continued to be
pressed and the vehicle speed is decelerated to
approximately 40 km/h (25 mph) or less, the set
function and coast function are cancelled, and then
the constant speed driving is cancelled.

Resume function

1.

When the "CANCEL" switch is pressed or the brake
pedal is depressed during the constant speed
driving, it cancels the constant speed driving.

2.

Subsequently, when the "ACC RES" switch is
pressed during the driving with the vehicle speed of
approximately 40 km/h (25 mph) or more, the
constant speed driving is performed with the vehicle
speed memorized at the last cancellation of
constant speed driving.

Accel function

1.

When the "ACC RES" switch is continued to be
pressed for 0.5 seconds or more during constant
driving, it accelerates the vehicle with specified
acceleration while the switch is pressed.

2.

Then, when the "ACC RES" switch is released, the
vehicle speed of that time is newly memorized.
Thereafter, the constant speed driving is performed
at that vehicle speed.

3.

Also, when the "ACC RES" switch is pressed for
less than 0.5 seconds, the vehicle is accelerated 1.6
km/h (1 mph) from the vehicle speed of constant
speed driving, and the accelerated vehicle speed is
newly memorized. Thereafter, the constant speed
driving is performed at that vehicle speed.

4.

It is possible to keep pressing the "ACC RES"
switch until the vehicle speed is accelerated to
approximately 160 km/h (100 mph) or above.
However, after the "ACC RES" switch is released,
the vehicle speed of approximately 160 km/h (100
mph) becomes the newly memorized vehicle
speed. Thereafter, the constant speed driving is
performed at that speed.

Cancel function
When any of the following conditions is satisfied, the
constant speed driving will be cancelled.

｠

The auto-cruise control system is stopped by the
pressing of the "ON OFF" switch.

｠

The "CANCEL" switch is pressed.

｠

The brake pedal is depressed.

｠

The select lever is shifted to the "N" position.

｠

The vehicle speed becomes 40 km/h (25 mph) or
less.

｠

The vehicle speed is reduced 15 km/h (9 mph) or
more from the speed at which the constant speed
driving was started.

｠

An abnormality occurs to the vehicle speed signal.

｠

The ASC is operated.

｠

The engine coolant temperature becomes
abnormally high.

｠

The A/T fluid temperature becomes abnormally
high.

｠

An abnormality occurs to the ECM.

Fail-safe function
When any of the following conditions is satisfied, the
auto-cruise control system function is stopped until
the system returns to normal. Also, when any of the
conditions is satisfied during the constant speed
driving, the constant speed driving is cancelled
immediately.

｠

An abnormality occurs to the auto-cruise control
switch.

｠

An abnormality occurs to the stoplight switch.

When any of the following conditions is satisfied, stop
the vehicle once and turn the ignition switch to
"LOCK" (OFF). Otherwise, even when the system
returns to normal, the auto-cruise control system
function will continue to be stopped. Also, when any
of the conditions is satisfied during the constant speed
driving, the constant speed driving is cancelled
immediately.

｠

ECM abnormality

｠

TP sensor abnormality

｠

APP sensor abnormality

Diagnosis function

｠

The diagnostic trouble code check is possible with
the "CRUISE" indicator light.

AUTO-CRUISE CONTROL SYSTEM

17b-5

CONSTRUCTION AND OPERATION