Mitsubishi Outlander (2013+). Manual — part 53
ELECTRONICALLY CONTROLLED 4WD
REAR AXLE
27-7
CONSTRUCTION DIAGRAM
System component and function
ACB05569 AB
Engine-ECU
Diagnosis connector
ABS/ASC-ECU
Combination meter
4WD-ECU
4WD switch
Electronic control coupling
ETACS-ECU
Drive mode indicator
< Standard meter>
< High contrast meter>
Drive mode display
CVT-ECU
Steering wheel sensor
Parts name
Functional description
Engine ECU
Sends the following signals required by 4WD-ECU via CAN
communication.
• Engine torque signal
• Throttle position signal
• Engine speed signal
CVT-ECU
Sends the following signals required by 4WD-ECU via CAN
communication.
• Gear position signal
ABS/ASC-ECU
Sends the following signals required by 4WD-ECU via CAN
communication.
• ABS sensor signal (4 wheels speed signal)
• ABS/ASC operation signal
• 4WD limitation torque signal
ELECTRONICALLY CONTROLLED 4WD
REAR AXLE
27-8
Steering wheel sensor
Sends the following signals required by 4WD-ECU via CAN
communication.
• Steering angle signal
4WD switch
Sends the drive mode switch signal (4WD) to 4WD-ECU.
ETACS-ECU
Receives drive mode-related information (4WD ECO, 4WD AUTO, 4WD
LOCK), failure information and protection information from the 4WD-ECU,
and then sends them to the combination meter.
4WD-ECU
Calculates the optimum differential limitation force judging from the vehicle
condition and present drive mode based on the signals from each ECU and
switch, and controls the current value flown to the electronic control
coupling.
Controls the indicators (4WD ECO, 4WD AUTO, 4WD LOCK) in the
combination meter.
Controls the self-diagnostic function and fail-safe function.
Controls diagnostic function (Compatible with M.U.T.-III).
Electronic control coupling
Transmits the torque corresponding to the current value controlled by
4WD-ECU to the rear wheels.
Drive mode indicator
Integrated in the combination meter, and indicates the selected drive mode.
• When the 4WD system fails or is protected, the "4WD-E" or"LOCK"
indicator will flash simultaneously or alternately, and the system
automatically will enter the front wheel drive mode to protect the drive
system components, and the drive mode changeover with the 4WD
switch will become unavailable. <Standard meter>
• When the 4WD system fails or is protected, a message will be
displayed, and the system automatically will enter the front wheel drive
mode to protect the drive system components, and the drive mode
changeover with the 4WD switch will become unavailable. <High
contrast meter>
• The drive mode signal from 4WD-ECU is sent to the combination meter
via ETACS-ECU using CAN communication.
Diagnosis connector
Outputs the diagnosis code and establishes the communication with
M.U.T.-III.
Parts name
Functional description
ELECTRONICALLY CONTROLLED 4WD
REAR AXLE
27-9
System configuration
ACC00455 AB
Engine
ABS/ASC-ECU
Transmission
Combination meter
4WD-ECU
4WD switch
Electronic control coupling
NOTE:The dashed line indicates CAN communication lines (CAN-C, CAN-C-Mid).
Engine-ECU
ETACS-ECU
Diagnosis
connector
CAN-C
CAN-C-Mid
CAN-C
CVT-ECU
Steering wheel
sensor
ELECTRONICALLY CONTROLLED 4WD
REAR AXLE
27-10
Control schematic diagram
ACC00456
4WD-ECU
4WD switch
(4WD ECO
4WD AUTO
4WD LOCK)
Engine-ECU
· Engine r/min
· Engine torque
ABS/ASC-ECU
· 4 wheels speed
· 4WD torque reduction
requirement
· Yaw rate, longitudinal
and lateral acceleration
Coupling torque
Combination meter
· Drive mode indicator
or display
· Fail information
Diagnosis output
ABS/ASC-ECU
· Drive mode
· Coupling torque
AB
CAN-C
CAN-C-Mid
CAN-C
ETACS-ECU
· Vehicle information
· Key position
· Battery voltage
·
Ambient temperature
· Stop lamp switch
ETACS-ECU
NOTE:The dashed line indicates CAN communication
lines (CAN-C, CAN-C-Mid).
CVT-ECU
· Gear position
Steering wheel sensor
· Steering angle
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