2005 MITSUBISHI LANCER cooling

ON-VEHICLE SERVICE
HEATER, AIR CONDITIONER AND VENTILATION55-76
FAN CONTROL RELAY CONTINUITY
CHECK
IDLE-UP OPERATION CHECK
M1552001600371
1. Before inspection and adjustment, set vehicle in
the following condition:
•Engine coolant temperature: 80 − 90 °C•Lamps, electric cooling fan and accessories: Set
to OFF
•Transmission: Neutral ("N" or "P" for vehicles with
A/T)
•Steering wheel: Straightforward
2. Check whether or not the idle speed is the
standard value. <1300, 1600> Refer to GROUP
13A, On-vehicle Service − Basic Idle Speed
Adjustment P.13A-387.
<2000> Refer to GROUP 13B, On-vehicle Service
− Basic Idle Speed Adjustment P.13B-324.
Standard value: 750 ± 50 r/min
3. When the A/C is running after turning the A/C
switch to ON, and the blower switch to the 3(MH)
or 4(HI) position, check to be sure that the idle
speed is at the standard value.
Standard value: 850 ± 50 r/min
NOTE: It is not necessary to make an adjustment,
because the idling speed is automatically
adjusted by the ISC system. If, however, a
deviation from the standard value occurs for some
reason, check the ISC system.
CLEAN AIR FILTER REPLACEMENT
PROCEDURE
M1552020100030
1. Remove the glove box (Refer to GROUP 52A,
Instrument Panel P.52A-2).
2. Remove the two screws as shown, and replace
the clean air filter.
3. Install the glove box. Battery voltage Tester
connectionSpecified
condition
Not applied 2 − 4 Open circuit
•Connect
terminal 1 to
the positive
battery
terminal
•Connect
terminal 3 to
the negative
battery
terminal2 − 4 Less than 2
ohms
AC305307
Fan control relay
13
4 2
3 4
1 2
AC
AC305114AB
Air filter
Instrument panel

COMPRESSOR ASSEMBLY AND TENSION PULLEY
HEATER, AIR CONDITIONER AND VENTILATION55-94
DISASSEMBLY AND REASSEMBLYM1552004600660
DISASSEMBLY SERVICE POINT
<> SELF-LOCKING NUT REMOVAL
Use the special tools to remove the self-locking nut.
•Special spanner (MB991367)
•Pin (MB991386)
REASSEMBLY SERVICE POINTS
>>A<< FIELD CORE ATTACHMENT
Line up the pin hole on the compressor unit with the
field core projection and attach.
AC100630
N
N
16 ± 1 N·m
10
46789
512
AB
3
11
Cooling temperature switch
disassembly steps
1. Snap ring
2. Refrigerant temperature switch
3. O ring
Magnetic clutch disassembly
>>D<<•Air gap adjustment
<> >>C<<4. Self-locking nut5. Armature
>>B<<6. Snap ring
7. Rotor
8. Snap ring
>>A<<9. Field core
10. Shim
11. A/C compressorMagnetic clutch disassembly
AC100633AB
MB991386
MB991367
AC100634AB
Field core projection
Compressor
unit pin hole

COMPRESSOR ASSEMBLY AND TENSION PULLEY
HEATER, AIR CONDITIONER AND VENTILATION55-95
>>B<< SNAP RING INSTALLATION
Using snap ring pliers, fit the snap ring so that the
snap ring’s tapered part is on the outside.
>>C<< SELF-LOCKING NUT
INSTALLATION
Use the special tools to install the self-locking nut.
•Special spanner (MB991367)
•Pin (MB991386)
>>D<< AIR GAP ADJUSTMENT
Check that the clutch air gap is inside the standard
value. If outside the standard value, use a shim to
adjust the gap.
Standard value: 0.3 − 0.5 mm
INSPECTIONM1552014300950
REFRIGERANT TEMPERATURE SWITCH
CAUTION
Do not heat more than necessary.
1. Dip the metal part of the cooling temperature
switch into engine oil and increase the oil
temperature using a gas burner or similar.
2. When the oil temperature reaches the standard
value, check that voltage is supplied between the
terminals.
Standard value:
NOTE: When the oil temperature is 150
°C or
more and there is no continuity, the resistance will
not be 2
Ω or lower until the oil temperature
reduces to 120
°C or less.
AC001412
Snap ring
RotorClutch coil
Tapered part
AB
AC100633AB
MB991386
MB991367
AC100637AB
Thickness
gauge
Item Temperature
Less than 2
ohmsSlightly below 150°C
No continuity 150°C or more
AC100787
Thermometer
Engine oil
AB
AC100810
Continuity
No continuity
Oil temperature
AD
120˚C150˚C

ECU
COMPONENT LOCATIONS70-2
ECU
M1701000500140
Name Symbol Name Symbol
A/C-ECU E Cooling fan motor drive control unit C
ABS-ECU A Front-ECU B
Column switch (incorporating
Column-ECU)D Immobilizer-ECU G
Engine-A/T-ECU I Power window main switch
(incorporating ECU)K
Engine-ECU I Power window sub switch
(incorporating ECU)J
ETACS-ECU F SRS-ECU H
AC301182
DE
AB
C
FGHI
AB

DE
AB
C
FGHI

ECU
COMPONENT LOCATIONS70-3
NOTE: *: also equipped on the rear doors.
AC304537
JK*
AE
AC100209AC
A
ABS-ECU

Hydraulic unit
AC206790
A
AD
ABS-ECU
Hydraulic unit

AC301728AB
BFront-ECU
Battery
AC300571
C
ACRadiator fan
Cooling fan motor
drive control unit
AC301746
DColumn switch
(incorporating
column-ECU)
AB
AC301732AB
E
A/C-ECU

ENGINE COMPARTMENT
CONFIGURATION DIAGRAMS80-6
ENGINE COMPARTMENT
ENGINE COMPARTMENT M1801000301298
AC301122AB
A-02
A-03
A-04X
A-05X
A-09X
A-10X
A-11X
A-12
A-13
A-14
A-15
A-16
A-17
A-18 A-19 A-20 A-21Front wiring
harness (LH)
12Front wiring
harness (RH) A-01
A-32
A-31
A-29
A-28
A-27
A-26
A-25
A-23 A-24 A-22
1
Front bumper
wiring harness Connector colour
code
B : Black
BR : Brown
G : Green
GR : Gray
L : Blue
None : Milk white
O : Orange
R : Red
V : Violet
Y : Yellow
Connector
symbol
A
A-01 (2-GR) Side turn signal lamp (RH)
A-02 (2-GR) Side turn signal lamp (LH)
A-03 (2-B) Wheel speed sensor (Front: LH)
A-04X (4) Front fog lamp relay or spare connector
(for front fog lamp)
A-05X (4) Horn relay
A-09X (4) Fan control relay
A-10X (11) Front-ECU
A-11X (11) Front-ECU
A-12 (2-B) Front wiring harness (LH) and control
wiring harness combination
A-13 (12-B) Front wiring harness (LH) and control
wiring harness combination
A-14 (3-B) Headlamp (LH)
A-15 (6-B) Front combination lamp (LH)
A-16 (2) Front turn signal lamp (LH)A-17 (2-B) Front fog lamp (LH)
A-18 (3-GR) Cooling fan motor drive control unit
A-19 (1-B) Horn (HI)
A-20 (2-B) Front wiring harness (LH) and front
bumper wiring harness combination
A-21 (1-B) Horn (LO)
A-22 (2-B) Front fog lamp (RH)
A-23 (2) Front turn signal lamp (RH)
A-24 (1) Spare connector (for front fog lamp)
A-25 (6-B) Front combination lamp (RH)
A-26 (2) Windshield washer motor
A-27 (2-G) Rear washer motor
A-28 (2-B) Headlamp washer motor
A-29 (3-B) Headlamp (RH)
A-31 (2-BR) Dual pressure switch
A-32 (2-B) Wheel speed sensor (Front: RH)

ENGINE COMPARTMENT
CONFIGURATION DIAGRAMS80-7
ENGINE COMPARTMENT M1801000301306
AC301125
Front wiring
harness (RH) A-01
A-32
A-31
A-29 A-30
A-27
A-26
A-25
A-23 A-24 A-22
1
Front bumper
wiring harness Connector colour
code
B : Black
BR : Brown
G : Green
GR : Gray
L : Blue
None : Milk white
O : Orange
R : Red
V : Violet
Y : Yellow
Connector
symbol
A
AB
A-02
A-03
A-04X
A-05X
A-09X
A-10X
A-11X
A-12
A-14
A-15
A-16
A-17
A-18 A-19 A-20 A-21Front wiring
harness (LH)
12
A-01 (2-GR) Side turn signal lamp (RH)
A-02 (2-GR) Side turn signal lamp (LH)
A-03 (2-B) Wheel speed sensor (Front: LH)
A-04X (4) Front fog lamp relay or spare connector
(for front fog lamp)
A-05X (4) Horn relay
A-09X (4) Fan control relay
A-10X (11) Front-ECU
A-11X (11) Front-ECU
A-12 (2-B) Front wiring harness (LH) and control
wiring harness combination
A-14 (3-B) Headlamp (LH)
A-15 (6-B) Front combination lamp (LH)
A-16 (2) Front turn signal lamp (LH)
A-17 (2-B) Front fog lamp (LH)A-18 (3-GR) Cooling fan motor drive control unit
A-19 (1-B) Horn (HI)
A-20 (2-B) Front wiring harness (LH) and front
bumper wiring harness combination
A-21 (1-B) Horn (LO)
A-22 (2-B) Front fog lamp (RH)
A-23 (2) Front turn signal lamp (RH)
A-24 (1) Spare connector (for front fog lamp)
A-25 (6-B) Front combination lamp (RH)
A-26 (2) Windshield washer motor
A-27 (2-G) Rear washer motor
A-29 (3-B) Headlamp (RH)
A-30 (2-GR) No connection
A-31 (2-BR) Dual pressure switch
A-32 (2-B) Wheel speed sensor (Front: RH)

90-1
GROUP 90
CIRCUIT DIAGRAMS
CONTENTS
J/B . . . . . . . . . . . . . . . . . . . . . . . . . . .90-4
J/C . . . . . . . . . . . . . . . . . . . . .90-6
J/C . . . . . . . . . . . . . . . . . . . . .90-8
CENTRALIZED JUNCTION . . . . . . . .90-10
POWER DISTRIBUTION SYSTEM
. . . . . . . . . . . . . . . . . . . . . . . .90-15
POWER DISTRIBUTION SYSTEM
. . . . . . . . . . . . . . . . . . . . . . . .90-17
STARTING SYSTEM . . . . . . .90-19
STARTING SYSTEM . . . . . . . .90-20
IGNITION SYSTEM
<4G1-M/T (LHD)>. . . . . . . . . . . . . . . .90-21
IGNITION SYSTEM
<4G1-M/T (RHD)> . . . . . . . . . . . . . . .90-22
IGNITION SYSTEM
<4G1-A/T (LHD)> . . . . . . . . . . . . . . . .90-23
IGNITION SYSTEM
<4G1-A/T (RHD)>. . . . . . . . . . . . . . . .90-24
IGNITION SYSTEM <4G6 (LHD)> . . .90-25
IGNITION SYSTEM <4G6 (RHD)> . . .90-26
CHARGING SYSTEM . . . . . . .90-27CHARGING SYSTEM . . . . . . .90-28
ENGINE CONTROL SYSTEM
<4G1-M/T (LHD)> . . . . . . . . . . . . . . . .90-29
ENGINE CONTROL SYSTEM
<4G1-M/T (RHD)> . . . . . . . . . . . . . . . .90-31
ENGINE CONTROL SYSTEM
<4G1-A/T (LHD)> . . . . . . . . . . . . . . . .90-33
ENGINE CONTROL SYSTEM
<4G1-A/T (RHD)> . . . . . . . . . . . . . . . .90-35
ENGINE CONTROL SYSTEM
<4G6 (LHD)> . . . . . . . . . . . . . . . . . . . .90-37
ENGINE CONTROL SYSTEM
<4G6 (RHD)> . . . . . . . . . . . . . . . . . . .90-39
COOLING SYSTEM . . . . . . . .90-41
COOLING SYSTEM . . . . . . . .90-42
INVECS-II 4A/T . . . . . . . . . . . .90-43
INVECS-II 4A/T . . . . . . . . . . .90-45
HEADLAMP . . . . . . . . . . . . . .90-47
HEADLAMP . . . . . . . . . . . . . .90-49
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