Mitsubishi Outlander (2013+). Manual — part 139
A/C COMPRESSOR RELAY CONTROL
MULTIPOINT FUEL INJECTION (MPI)
13A-40
A/C COMPRESSOR RELAY CONTROL
M2132034500722
After the A/C switch is turned ON and A/C compres-
sor relay reaches a state where it can turn ON,
engine-ECU turns ON the A/C compressor relay and
drives the A/C compressor. In order to prevent
change in engine speed due to increased load of
driving the compressor, it controls the A/C compres-
sor relay to drive the A/C compressor after idle-up is
complete. Also, in order to secure acceleration per-
formance, it turns OFF the A/C compressor relay for
a fixed amount of time, if the throttle opening angle
increases beyond a prescribed limit.
AK800141
OFF
ON
AH
Battery
A/C compressor relay
A/C compressor
assembly
A/C compressor
relay control
A/C compressor
clutch
A/C
refrigerant
temperature
switch
OFF
ON
Engine-ECU
A/C switch (CAN)
Crank angle sensor
Accelerator pedal position sensor
Vehicle speed signal (CAN)
Inhibitor switch (CAN)
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ALTERNATOR CONTROL
MULTIPOINT FUEL INJECTION (MPI)
13A-41
ALTERNATOR CONTROL
M2132025000785
During engine idle operation, engine-ECU controls
duty of conduction between alternator G terminal and
earth. (G terminal duty is controlled to be the same
as ON duty of the power transistor inside the voltage
regulator). If headlamps etc. are turned on while
engine is idling, the consumed current increases
suddenly, but by gradually increasing the alternator
G terminal OFF duty, engine-ECU restricts sudden
increase in alternator output current and output cur-
rent is increased only gradually. (Battery current is
supplied to the headlamp etc. till alternator produces
sufficient current.) Thus, engine-ECU prevents
change in idle speed due to sudden increase of
engine load.
PURGE CONTROL
M2132027500106
Refer to GROUP 17
− Emission Control − Evapora-
tive Emission Control System
P.17-16
.
CONTROLLER AREA NETWORK (CAN)
M2132019000957
CAN communication is established to ensure the reli-
able transmission of information. Refer to GROUP
54C
− General Information
P.54C-2
.
DIAGNOSIS SYSTEM
M2132009002093
Engine-ECU has been provided with the following
functions for easier system inspection. Refer to the
workshop manual for the details about each item.
• Freeze-frame data function
• Diagnosis code function
• Data list function
• Actuator test function
AK602242AL
Alternator G terminal
Alternator FR terminal
Alternator
Engine coolant
temperature sensor
Crank angle sensor
A/C switch (CAN)
Ignition switch-ST
E
ngine-ECU
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13B-1
GROUP 13B
FUEL SUPPLY
CONTENTS
GENERAL INFORMATION . . . . . . . .
13B-2
FUEL TANK . . . . . . . . . . . . . . . . . . . .
13B-3
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