relay MITSUBISHI LANCER 2005 User Guide

ON-VEHICLE SERVICE
ENGINE COOLING14-24
3. Connect the cooling fan motor drive control unit
connector, and disconnect the cooling fan motor
(L.H.) connector.
4. Ensure that the A/C switch is off, and start the
engine and run it at idle.
5. Measure the voltage between the cooling fan
motor drive control unit side connector terminal 1
and 2.
Standard value: 1V or less
WARNING
Stay clear of the fan when the fan starts
running.
6. Turn the A/C switch to the "ON" position.
7. Measure the voltage between the cooling fan
motor drive control unit side connector terminal 1
and 2 while the fan is running. The voltage should
repeat the values below.
Standard value:
1. 1 V or less
2. 8.2 ± 0.7 V
3. System voltage ± 2.6 V
8. If the voltage does not repeatedly change as
indicated, replace the cooling fan motor drive
control unit. (Refer to P.14-35).
FAN CONTROL RELAY CONTINUITY
CHECK
M1141006200280
AC303496AB
Cooling fan motor
drive control unit
Battery
voltageTerminal No.to
be connected to
testerContinuity test
results
Not applied 4 − 2 Open circuit
Connect
terminal
No.1 and
battery (−)
terminal.
Connect
terminal
No.3 and
battery (+)
terminal.4 − 2 Less than 2 ohms
AC211776
13
4 2
3 4
1 2
AC301712
Fan control relay
AB

16-1
GROUP 16
ENGINE
ELECTRICAL
CONTENTS
CHARGING SYSTEM . . . . . . . .
16-2
GENERAL INFORMATION . . . . . .
16-2
SERVICE SPECIFICATIONS. . . . .16-3
SPECIAL TOOL . . . . . . . . . . . . . . .16-3
ON-VEHICLE SERVICE. . . . . . . . .16-3
ALTERNATOR OUTPUT LINE VOLTAGE
DROP TEST . . . . . . . . . . . . . . . . . . . . . 16-3
OUTPUT CURRENT TEST . . . . . . . . . . 16-5
REGULATED VOLTAGE TEST . . . . . . . 16-7
WAVEFORM CHECK USING AN
OSCILLOSCOPE . . . . . . . . . . . . . . . . . . 16-9
ALTERNATOR ASSEMBLY . . . . .16-12
REMOVAL AND INSTALLATION
<4G1> . . . . . . . . . . . . . . . . . . . . . . . . . . 16-12
REMOVAL AND INSTALLATION
<4G6> . . . . . . . . . . . . . . . . . . . . . . . . . . 16-13
DISASSEMBLY AND REASSEMBLY . . 16-15
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-17
STARTING SYSTEM . . . . . . . . .16-19
GENERAL INFORMATION . . . . . .
16-19
SERVICE SPECIFICATIONS. . . . .16-20
STARTER MOTOR ASSEMBLY . .16-21
REMOVAL AND INSTALLATION
<4G1> . . . . . . . . . . . . . . . . . . . . . . . . . . 16-21
REMOVAL AND INSTALLATION
<4G6> . . . . . . . . . . . . . . . . . . . . . . . . . . 16-22
STARTER MOTOR ASSEMBLY
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-23
DISASSEMBLY AND REASSEMBLY . . 16-26
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-27
IGNITION SYSTEM . . . . . . . . . 16-30
GENERAL INFORMATION . . . . . .
16-30
SERVICE SPECIFICATIONS . . . . .16-31
SPECIAL TOOL . . . . . . . . . . . . . . .16-31
ON-VEHICLE SERVICE . . . . . . . . .16-32
IGNITION COIL (WITH BUILT-IN
POWER TRANSISTOR) CHECK . . . . . . 16-32
RESISTIVE CORD CHECK . . . . . . . . . . 16-32
SPARK PLUG CHECK AND
CLEANING <4G1> . . . . . . . . . . . . . . . . . 16-32
SPARK PLUG CHECK AND
CLEANING <4G6> . . . . . . . . . . . . . . . . . 16-33
CAMSHAFT POSITION SENSOR
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . 16-33
CRANK ANGLE SENSOR CHECK . . . . 16-33
DETONATION SENSOR CHECK . . . . . 16-33
IGNITION SECONDARY VOLTAGE
WAVEFORM CHECK USING AN
OSCILLOSCOPE . . . . . . . . . . . . . . . . . . 16-33
IGNITION COIL RELAY CHECK . . . . . . 16-37
IGNITION COIL . . . . . . . . . . . . . . . .16-38
REMOVAL AND INSTALLATION
<4G1>. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-38
REMOVAL AND INSTALLATION
<4G6>. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-39
CAMSHAFT POSITION SENSOR .16-40
REMOVAL AND INSTALLATION . . . . . . 16-40
CRANKSHAFT POSITION SENSOR16-41
REMOVAL AND INSTALLATION
<4G1>. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-41
REMOVAL AND INSTALLATION
<4G6>. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-42
DETONATION SENSOR . . . . . . . .16-43
REMOVAL AND INSTALLATION . . . . . . 16-43

IGNITION SYSTEM
ENGINE ELECTRICAL16-37
IGNITION COIL RELAY CHECKM1163006500018
AC301727
2 1
3 4
AC304311AB
Battery
Ignition coil relay
Battery
voltageTerminal No.to
be connected to
testerContinuity test
results
Not applied 1 − 4 Open circuit
Connect
terminal
No.2 and
battery (+)
terminal.
Connect
terminal
No.3 and
battery (−)
terminal.1 − 4 Less than 2 ohms

EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-10
SYSTEM DIAGRAM
COMPONENT LOCATION (EVAPORATIVE
EMISSION CONTROL SYSTEM)
M1173007500216
PURGE CONTROL SYSTEM CHECKM1173001400299
AK204367AC
Throttle body
Canister
From
fuel
tank
OFF
ONPurge
control
solenoid
valveControl
relay
BatteryEngine-ECU <4G1-M/T, 4G6>,
Engine-A/T-ECU <4G1-A/T>
Air flow sensor <4G6>
Engine coolant
temperature sensor
Intake air
temperature sensor
Barometric pressure
sensor <4G6> Manifold absolute pressure
(MAP) sensor <4G1>
AK300769
<4G1>
AB
Purge control
solenoid valve
AK300770
<4G6>
AB
Purge control
solenoid valve
AK300771
<4G1>
AB
Plug
Vacuum hose
AK300772
<4G6>
AB
Plug
Vacuum hose

EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-13
EXHAUST GAS RECIRCULATION
(EGR) SYSTEM
GENERAL INFORMATION (EGR SYSTEM)M1173005200327
The exhaust gas recirculation (EGR) system lowers
the nitrogen oxide (NOx) emission level.
When the air/fuel mixture combustion temperature is
high, a large quantity of nitrogen oxides (NOx) is
generated in the combustion chamber.
Therefore, this system recirculates part of emission
gas from the exhaust port of the cylinder head to the
combustion chamber through the intake manifold to
decrease the air/fuel mixture combustion
temperature, resulting in reduction of NOx.The EGR flow rate is controlled by the EGR valve so
as not to decrease the driveability.
OPERATION
The EGR valve is being closed and does not
recirculate exhaust gases under one of the following
conditions.
Otherwise, the EGR valve is opened and recirculates
exhaust gases.
•The engine coolant temperature is low.
•The engine is at idle.
•The throttle valve is widely opened.
SYSTEM DIAGRAM
AK300775
Manifold absolute
pressure (MAP) sensor Engine-ECU ,
Engine-A/T-ECU
Engine coolant
temperature sensor
Crank angle sensor EGR
control
solenoid
valve
EGR valveOFF
ON
Control
relay
Battery
AB
<4G1>

EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-14
COMPONENT LOCATION (EGR SYSTEM)M1173007600224
AK302349AB
<4G6>
EGR
control
Solenoid
valve
EGR valveOFF
ON
Control
relay
BatteryEngine-ECU
Barometric pressure
sensor
Air flow sensor
Engine coolant
temperature sensor
Crank angle sensor
AK300776
<4G1>
AB
EGR control
solenoid valve
AK300778
<4G6>
AB
EGR control
solenoid valve
AK300777
<4G1>
AB
EGR valve
AK300779AB
<4G6>
EGR valve

42-2
TROUBLESHOOTING . . . . . . . . . .42-26
ON-VEHICLE SERVICE. . . . . . . . .42-27
DOOR FIT ADJUSTMENT. . . . . . . . . . . 42-27
DOOR WINDOW GLASS ADJUSTMENT42-28
GLASS SLIDING MECHANISM CHECK
AND ADJUSTMENT . . . . . . . . . . . . . . . 42-28
POWER WINDOW OPERATING
CURRENT CHECK . . . . . . . . . . . . . . . . 42-28
POWER WINDOW RELAY CHECK . . . 42-29
CIRCUIT BREAKER (INCORPORATED
IN THE POWER WINDOW MOTOR)
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-29
POWER WINDOW CHECK . . . . . . . . . . 42-29
CENTRAL DOOR LOCKING SYSTEM
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-29
DOOR OUTSIDE HANDLE PLAY
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . 42-29
DOOR INSIDE HANDLE PLAY
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . 42-30
DOOR ASSEMBLY . . . . . . . . . . . .42-31
REMOVAL AND INSTALLATION . . . . . 42-31
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-32
DOOR GLASS AND
REGULATOR . . . . . . . . . . . . . . . . .
42-32
REMOVAL AND INSTALLATION . . . . . 42-32
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-34
DOOR HANDLE AND LATCH . . . .42-36
REMOVAL AND INSTALLATION . . . . . 42-36
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-37
WINDOW GLASS RUNCHANNEL AND
DOOR OPENING
WEATHERSTRIP . . . . . . . . . . . . . .
42-39
REMOVAL AND INSTALLATION . . . . . 42-39
TRUNK LID . . . . . . . . . . . . . . . .42-41
SPECIAL TOOL . . . . . . . . . . . . . . .
42-41
ON-VEHICLE SERVICE. . . . . . . . .42-41
TRUNK LID ADJUSTMENT . . . . . . . . . . 42-41
ADJUSTMENT OF CLEARANCE
AROUND TRUNK LID . . . . . . . . . . . . . . 42-42
TRUNK LID STRIKER ADJUSTMENT . 42-42
TRUNK LID HEIGHT ADJUSTMENT . . 42-42
TRUNK LID . . . . . . . . . . . . . . . . . . .42-43
REMOVAL AND INSTALLATION . . . . . . 42-43
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-45
TAILGATE . . . . . . . . . . . . . . . . 42-46
SERVICE SPECIFICATIONS . . . . .
42-46
SEALANTS . . . . . . . . . . . . . . . . . . .42-46
SPECIAL TOOL . . . . . . . . . . . . . . .42-46
TROUBLESHOOTING . . . . . . . . . .42-46
ON-VEHICLE SERVICE . . . . . . . . .42-46
TAILGATE FIT ADJUSTMENT. . . . . . . . 42-46
TAILGATE HANDLE PLAY CHECK . . . . 42-47
TAILGATE . . . . . . . . . . . . . . . . . . .42-48
REMOVAL AND INSTALLATION . . . . . . 42-48
TAILGATE HANDLE AND
LATCH . . . . . . . . . . . . . . . . . . . . . .
42-50
REMOVAL AND INSTALLATION . . . . . . 42-50
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-51
KEYLESS ENTRY SYSTEM . . 42-51
SERVICE SPECIFICATIONS . . . . .
42-51
SPECIAL TOOLS . . . . . . . . . . . . . .42-52
TROUBLESHOOTING . . . . . . . . . .42-53
ON-VEHICLE SERVICE . . . . . . . . .42-53
KEYLESS ENTRY SYSTEM CHECK. . . 42-53
KEYLESS ENTRY SYSTEM TIMER
LOCK FUNCTION INSPECTION . . . . . . 42-53
ENABLING/DISABLING
THE ANSWERBACK FUNCTION . . . . . 42-53
HOW TO REGISTER SECRET CODE . 42-55
TRANSMITTER. . . . . . . . . . . . . . . .42-58
DISASSEMBLY AND REASSEMBLY . . 42-58
INSPECTION . . . . . . . . . . . . . . . . . . . . . 42-59

DOOR
BODY42-29
3. If the operation current is outside the standard
value, refer to GROUP 54B, Troubleshooting
P.54B-17, refer to GROUP 54C, Troubleshooting
P.54C-4.
POWER WINDOW RELAY CHECKM1429001800202
CIRCUIT BREAKER (INCORPORATED IN
THE POWER WINDOW MOTOR)
INSPECTION
M1429001000273
1. Pull the power window switch to the UP position
to fully close the door window glass, and keep
pulling the switch for 10 additional seconds.2. Release the power window switch from the UP
position and immediately press it to the DOWN
position. The condition of the circuit breaker is
good if the door window glass starts to move
downwards within 60 seconds.
POWER WINDOW CHECKM1429004400203
Check the system as described below. If the system
does not work, carry out troubleshooting. Refer to
GROUP 54B, Troubleshooting P.54B-17 or GROUP
54C, Troubleshooting P.54C-4.
•Operate the power window switch of each seat to
check that the power window works.
•Turn on the power window lock switch of the
power window main switch, and operate the front
passenger's and rear power window sub switches
to check that the power windows do not work.
•Turn on the power window lock switch of the
power window main switch, and operate the
power window main switch to check that each
power window operates.
CENTRAL DOOR LOCKING SYSTEM
INSPECTION
M1427001100133
Check that the central door locking system works by
operating the key cylinders (driver’s and passenger’s
door) and the inside lock knob (driver's door). Carry
out troubleshooting if the system does not activate.
Refer to GROUP 54B, Troubleshooting P.54B-17,
refer to GROUP 54C, Troubleshooting P.54C-4.
DOOR OUTSIDE HANDLE PLAY CHECKM1423001600277
1. Check that the door outside handle play is within
the standard value range.
Standard value (A):
Front door: 2.3 ± 2.1 mm
Rear door: 1.3 ± 1.7 mm
2. If the door outside handle play is not within the
standard value range, check the door outside
handle or the door latch assembly. Replace, if
necessary. BATTERY
VOLTAGETester
connectionSpecified
condition
Not applied 4 − 5 Open circuit
•Connect
terminal No. 3
and the
negative
battery
terminal.
•Connect
terminal No. 1
and the
positive battery
terminal.Less than 2
ohms
AC305140
123
4
5
1
3 4 5
AB
Junction block
(front view)
Power window relay
Power window
relay
AC006113
AB
A

WINDSHIELD WIPER AND WASHER
EXTERIOR51-21
WINDSHIELD WIPER AND WASHER
GENERAL INFORMATIONM1511000100514
WINDSHIELD WIPER AND WASHER
OPERATION
Windshield Low-speed (and High-speed)
Wiper Operation
•If the windshield low-speed wiper switch is turned
to the ON position with the ignition switch at the
"ACC" or "ON" position, the column switch sends
a low-speed wiper ON and high-speed wiper OFF
signals to the front-ECU. This turns the wiper
signal on and the wiper speed control relay off
(low-speed), causing the wipers to operate at
low-speed.
•If the windshield high-speed wiper switch is
turned to the ON position, the column switch
sends a low-speed wiper OFF and high-speed
wiper ON signals to the front-ECU. This turns
both the wiper signal and the wiper speed control
relay on (high-speed), causing the wipers to
operate at high-speed.
NOTE: The windshield wiper speed is switchable
with the built-in wiper speed control relay.
High-speed operations take place when the wiper
speed control relay is set to "ON" and low-speed
operations take place when the wiper speed control
relay is set to "OFF".
Windshield Intermittent Wiper Operation
The ETACS-ECU calculates the wiper operation
interval according to the voltage signal sent from the
column switch. Then the ETACS-ECU sends a signal
to the front-ECU. The front-ECU determines the
wiper operation interval and turns on the wiper relay
signal relay. This causes the wiper auto stop relay to
turn on. Then the wiper auto stop relay will turn off
after the wipers reach the park position. This causes
the wiper signal relay and then the wipers to turn off.
If the wiper signal relay remains off for the wiper
operation interval, the relay turns on again, causing
the wipers to operate in intermittent mode.
Windshield Mist Wiper Operation
•If the windshield mist wiper switch is turned to the
ON position with the ignition switch at the "ACC"
or "ON" position, the mist wiper high-speed
operation signal is sent to the front-ECU. This
signal turns on the wiper speed control relay,
causing the wipers to work at high-speed while
the mist switch is on.
•While the windshield mist wiper switch remains
turned on when the intermittent mode is still
working, the wipers work as the mist wiper.
However, the wipers return to the intermittent
mode again when the switch is changed back to
"INT" position.
•To prevent the windshield mist wiper from
operating when the windshield wiper switch is
turned OFF, the windshield mist wiper does not
work for 0.5 second after the windshield
intermittent wiper switch, the windshield
low-speed wiper switch and the windshield
high-speed wiper switch are turned OFF.
Windshield Washer Operation
•If the windshield washer switch is turned to ON
position with the ignition switch at "ACC" or "ON"
position, the windshield washer ON signal is sent
to the front-ECU. After 0.3 second, the windshield
wiper signal turns on. After the windshield washer
switch signal turns off, the windshield wiper signal
turns off in three seconds.
•If the windshield washer switch is turned on while
the windshield wiper is at intermittent mode,
when the windshield washer switch is turned OFF
within 0.2 second, the wiper works only once to
perform mist operation by the windshield washer
switch. When the ON condition of the windshield
washer switch continues more than 0.2 second,
the wiper performs the same movement as
normal condition from the time when 0.2 second
has elapsed and then returns to the intermittent
motion.

DOOR MIRROR
EXTERIOR51-36
DOOR MIRROR
GENERAL INFORMATIONM1511000100536
DOOR MIRROR OPERATION
Remote Controlled Mirror Operation
•The mirror on the door mirror moves up/down
and left/right by operating the remote controlled
door mirror switch when the ignition switch is in
the "ON" or "ACC" position.Heated Door Mirror operation
•The defogger relay switch is activated (ON) by
turning on the A/C-ECU built-in defogger switch
when the ignition switch is in the "ON" position.
When the defogger relay is turned ON, power is
supplied to the defogger and door mirror, and the
heater of the door mirror (heated door mirror)
starts operations. The defogger comes with a
timer function and will automatically turn OFF the
switch approximately 11 minutes after the
defogger switch is turned ON. The heated door
mirror operations are also terminated along with
the defogger, at this time.
SERVICE SPECIFICATIONM1511000300347
SPECIAL TOOLM1511000601103
TROUBLESHOOTING
DIAGNOSIS TROUBLESHOOTING FLOWM1511014600169
Refer to GROUP 00 − How to Use
Troubleshooting/Inspection Service Points P.00-5.
TROUBLE SYMPTOM CHARTM1511015000160
ItemStandard value
Heated door mirror operation current Ω5.9 − 7.8
Tool Number Name Application
MB990784 Ornament remover Removal of remote controlled
mirror switch
MB990784
Symptom Inspection
procedureReference
page
All heated door mirrors do not operate 1
P.51-37
The right or left heated door mirror does not operate 2
P.51-39