2005 MITSUBISHI LANCER relay

SIDE TURN-SIGNAL LAMP
CHASSIS ELECTRICAL54A-77
FRONT FOG LAMP RELAY CHECK
SIDE TURN-SIGNAL LAMP
SPECIAL TOOLM1542000600913
SIDE TURN-SIGNAL LAMP
REMOVAL AND INSTALLATIONM1542003300159
REMOVAL SERVICE POINT
Use a special tool ornament remover (MB990784),
etc. to remove the side turn signal lamp by pushing
the fender forward, bending the hook, and then
unclamping the thumb.
AC305279
1 4
3
2
AB
Rear fog lamp relay
Battery voltage Tester
connectionSpecified
condition
Not supplied 1 − 4 Open circuit
•Connect
terminal 3 to
the positive
battery terminal
•Connect
terminal 2 to
the negative
battery terminal1 − 4 Less than 2
ohms
Tool Number Name Use
MB990784 Ornament remover Removal of side turn-signal lamp
MB990784
AC005718
Side turn signal lamps
MB990784
: Front of vehicle
AC

ROOM LAMP
CHASSIS ELECTRICAL54A-78
INSTALLATION SERVICE POINTClamp the thumb on the fender panel the assemble
the side turn signal lamp.
ROOM LAMP
TROUBLESHOOTINGM1542000701311
Dimmer interior lamp control function
The room lamp off is delayed by ETACS-ECU. The
lamps off delay time vary according to the conditions.
The control details are as follows. The lamp delay off
Yes/NO and delay time can be set with the settings
(adjustment function). for adjustment methods and
adjustment details (post-adjustment operations).
•ADJUSTMENT PROCEDURE
•Not using SWS monitor: GROUP 54B,
P.54B-423.
•The room lamp lights up if the ignition switch is at
the "LOCK" (OFF) position and either of the
doors are opened (either of the door switches:
ON). At this time, if all doors are closed (all door
switches: OFF) then the lamp will gradually dim
down to lamps off in about 15 seconds.
NOTE: When the lamps are dimmed and the ignition
switch is turned ON or if the door is locked, then
the dimming operations stop and the lamps are
turned OFF.
•When the ignition switch is at the ON position and
one of the doors are opened (one of the door
switches: ON) then the room lamp will light up. At
this time, if all doors are closed (all door switches:
OFF) then the lamps will dim out.
•When the ignition key is pulled out the room lamp
lights up and then will dim out in 15 seconds. The
lamp will dim out if the ignition key is inserted
again and the door is locked while the timer is
activated.
The room lamp is controlled by the Smart Wiring
System (SWS). For troubleshooting, refer to
respective Groups below.•Not using SWS monitor: GROUP 54B, SWS
Troubleshooting P.54B-38.
•Using SWS monitor: GROUP 54C, SWS
Troubleshooting P.54C-22.
Interior lamp automatic shutdown
function system>
The interior lamp automatic shutdown function, dims
out the room lamp and other interior lamps by
activating the keep relay built-in the ETACS-ECU
when the ignition switch is OFF and the
multi-purpose fuse loaded signals built-in the
ETACS-ECU is ON and 30 minutes passes. The
lamps lights back up if the ignition switch is turned to
the ON position or either of the doors is opened
(either of the door switches: ON). The function
Yes/No feature can be changed with the settings
(adjustment function). for adjustment methods and
adjustment details (post-adjustment operations).
•ADJUSTMENT PROCEDURE
•Not using SWS monitor: GROUP 54B,
P.54B-423.
The head lamp are controlled by the Smart Wiring
System (SWS). For troubleshooting, refer to
respective Groups below.
•Not using SWS monitor: GROUP 54B, SWS
Troubleshooting P.54B-38.
•Using SWS monitor: GROUP 54C, SWS
Troubleshooting P.54C-22.
AC005719
Fender panelHook
Claw
Fender panel
: Front of vehicle
AE

HORN
CHASSIS ELECTRICAL54A-89
HORN
REMOVAL AND INSTALLATIONM1543007900413
HORN RELAY CONTINUITY CHECKM1543019502418
AC304666AB
1 2
Removal Steps
1. Horn
2. Horn
AC305306
1 4
3 2
AB
Horn relay
Battery voltage Tester
connectionSpecified
condition
Not applied 1 − 4 Open circuit
•Connect terminal
2 to the positive
battery terminal
•Connect terminal
3 to the negative
battery terminal1 − 4 Less than 2
ohms

REAR WINDOW DEFOGGER
CHASSIS ELECTRICAL54A-95

REAR WINDOW DEFOGGER
GENERAL INFORMATIONM1543000100319
Rear Defogger operation
The defogger relay turns ON if the defogger switch
built-in the A/C-ECU is turned ON when the ignition
switch is in the "ON" position. When the defogger
relay turns ON, power is supplied to the defogger
and the defogger is activated. The defogger comes
with a timer function that causes the defogger switch
to automatically turn OFF in about 11 minutes after
the defogger switch is turned ON.
TROUBLESHOOTINGM1543000701013
The rear window defogger is controlled by the
A/C-ECU. For troubleshooting, refer to GROUP 55-
Troubleshooting P.55-5.
Pre-removal and Post-installation Operation
•Front pillar trim, Centre pillar trim lower, Centre pillar trim
upper, Quarter trim lower, Quarter trim upper (Refer to
GROUP 52A − Trims P.52A-11.)
•Headlining Removal and Installation (Refer to GROUP
52A, Headlining P.52A-21.)
AC305316
AB
1
23
1. Roof antenna poleRemoval steps
2. Roof antenna base
•Instrument panel assembly (Refer to
GROUP 52A, Instrument panel assembly
P.52A-2.)
3. Antenna feeder cable

REAR WINDOW DEFOGGER
CHASSIS ELECTRICAL54A-96
ON-VEHICLE SERVICE
PRINTED HEATER LINES CHECKM1543001800311
1. Run engine at 2,000 r/min. Check heater element
with battery at full.
2. Turn "ON" rear window defogger switch. Measure
heater element voltage with circuit tester at rear
window glass centre A. Condition is good if it
indicates about six volts.
3. If 12 volts is indicated at A, there is a break in the
negative terminals from A. Move test bar slowly to
negative terminal to detect where voltage
changes suddenly (0 volts).
4. If 0 volts is indicated at A, there is a break in the
positive terminals from A. Defect where the
voltage changes suddenly (12 volts) in the same
method described above.
REAR WINDOW DEFOGGER SWITCH
REMOVAL AND INSTALLATIONM1543006200314
Refer to GROUP 55, Heater Control Assembly and
A/C Switch P.55-77.
INSPECTIONM1543019502388
DEFOGGER RELAY CHECK
ACX00813
Normal characteristic curve
Abnormal characteristic curve
A (Centre point)
Approximately 6 V
Negative
terminal Print heater line
Positive
terminal
Open circuit point Voltage
AC Voltage
Negative
terminal Print heater line
Positive
terminal
Battery voltage Tester
connectionSpecified
condition
Not supplied 4 − 5 Open circuit
•Connect terminal
3 to the positive
battery terminal
•Connect terminal
1 to the negative
battery terminal4 − 5 Less than 2
ohms
1 5
4
3
AC305319
AB
Rear windowdefogger relay

55-2
ON-VEHICLE SERVICE . . . . . . . . . . .55-69
SIGHT GLASS REFRIGERANT
LEVEL TEST . . . . . . . . . . . . . . . . . . . . . . . . 55-69
MAGNETIC CLUTCH TEST . . . . . . . . . . . . 55-69
COMPRESSOR DRIVE BELT
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . 55-69
DUAL PRESSURE SWITCH CHECK . . . . . 55-69
CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . 55-70
CORRECTING LOW REFRIGERANT LEVEL
IN CASE THE SERVICE CAN IN USED. . . 55-72
DISCHARGING SYSTEM . . . . . . . . . . . . . . 55-72
REFILLING OF OIL IN THE A/C
SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-72
PERFORMANCE TEST . . . . . . . . . . . . . . . 55-73
REFRIGERANT LEAK REPAIR
PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . 55-74
COMPRESSOR NOISE CHECK . . . . . . . . 55-74
POWER RELAY CHECK . . . . . . . . . . . . . . 55-75
IDLE-UP OPERATION CHECK . . . . . . . . . 55-76
CLEAN AIR FILTER REPLACEMENT
PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . 55-76
HEATER CONTROL ASSEMBLY AND A/C
SWITCH . . . . . . . . . . . . . . . . . . . . . . .55-77
REMOVAL AND INSTALLATION . . . . . . . . 55-77
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . 55-79
DISASSEMBLY AND REASSEMBLY . . . . . 55-79
HEATER UNIT, HEATER CORE,
BLOWER ASSEMBLY AND
EVAPORATOR UNIT* . . . . . . . . . . . .55-81
REMOVAL AND INSTALLATION . . . . . . . . 55-81
HEATER UNIT . . . . . . . . . . . . . . . . . . . . . . 55-82
DISASSEMBLY AND REASSEMBLY
. . . . . . . . . . . . . . . . . . . . . . . . . . . 55-82
DISASSEMBLY AND ASSEMBLY
. . . . . . . . . . . . . . . . . . . . . . . . . . . 55-83
BLOWER ASSEMBLY . . . . . . . . . . . . . . . . 55-84
DISASSEMBLY AND REASSEMBLY . . . . . 55-84
BLOWERMOTOR, RESISTOR AND
OUTSIDE/INSIDE AIR SELECTION
DAMPER CONTROL MOTOR . . . . . .55-85
REMOVAL AND INSTALLATION . . . . . . . . 55-85
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 55-86
EVAPORATOR ASSEMBLY . . . . . . .55-88
REMOVAL AND INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . 55-88
REMOVAL AND INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . 55-89
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 55-90
COMPRESSOR ASSEMBLY AND
TENSION PULLEY . . . . . . . . . . . . . . .55-91
REMOVAL AND INSTALLATION . . . . . . . . 55-91
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 55-93
DISASSEMBLY AND REASSEMBLY . . . . . 55-94
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 55-95
CONDENSER AND CONDENSER
FAN MOTOR . . . . . . . . . . . . . . . . . . . .55-96
REMOVAL AND INSTALLATION . . . . . . . . 55-96
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 55-97
REFRIGERANT LINE . . . . . . . . . . . . .55-98
REMOVAL AND INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . 55-98
REMOVAL AND INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . 55-99
DUCTS . . . . . . . . . . . . . . . . . . . . . . . .55-101
REMOVAL AND INSTALLATION . . . . . . . . 55-101
VENTILATORS . . . . . . . . . . . . . . . . . .55-102
REMOVAL AND INSTALLATION . . . . . . . . 55-102

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-12
COMMENTS ON TROUBLE SYMPTOM
If cool air is not distributed when the A/C switch is on,
the air thermo sensor or the A/C compressor relay
system may be defective.
TROUBLESHOOTING HINTS
•Improper amount of refrigerant
•Malfunction of the air thermo sensor
•Malfunction of the dual pressure switch
•Malfunction of the A/C compressor relay
•Malfunction of the A/C refrigerant temperature
switch
•Malfunction of the magnetic clutch
•Malfunction of the manual air conditioner control
panel (A/C-ECU)
•Damaged the wiring harness or connectors
•Malfunction of the engine-ECU or the
engine-A/T-ECU
DIAGNOSIS
STEP 1. Check the defogger and outside/inside
air selection damper control motor operation.
Q: Do the defogger and outside/inside air selection
damper control motor work normally?
YES :
Go to Step 2.
NO : Refer to Inspection procedure 9
"Malfunction of the A/C-ECU power supply
system P.55-53 ."
STEP 2. Check the blower motor operation.
Q: Does the blower motor work normally?
YES :
Go to Step 3.
NO : Refer to Inspection procedure 5 "Blower fan
and motor do not turn P.55-29."
STEP 3. Check the A/C compressor.
Check the A/C compressor for compressor oil leaks.
Q: Is the check result satisfactory?
YES :
Go to Step 4.
NO : Replace the A/C compressor or the
expansion valve.
STEP 4. Connector check: B-114 A/C compressor
connector and C-123 engine-ECU connector
or C-122 engine-A/T-ECU connector
Q: Is the check result normal?
YES :
Go to Step 5.
NO : Repair the connector.
AC303782
Connector: B-114
<4G1-L.H.D.>
AC
Harness side
B-114 (B)
AC303790
Connector: B-114
<4G6-L.H.D.>
AC
Harness side
B-114 (B)
AC303805
Connectors: C-122 , C-123

C-122 (GR)
C-123 (Y)
C-122 Harness side
C-123
AE

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-21
COMMENTS ON TROUBLE SYMPTOM
If cool air is not distributed when the A/C switch is on,
the air thermo sensor or the A/C compressor relay
system may be defective.
TROUBLESHOOTING HINTS
•Improper amount of refrigerant
•Malfunction of the air thermo sensor
•Malfunction of the dual pressure switch
•Malfunction of the A/C compressor relay
•Malfunction of the A/C refrigerant temperature
switch
•Malfunction of the magnetic clutch
•Malfunction of the manual air conditioner control
panel (A/C-ECU)
•Damaged the wiring harness or connectors
•Malfunction of the engine-ECU or the
engine-A/T-ECU
DIAGNOSIS
STEP 1. Check the defogger and outside/inside
air selection damper control motor operation.
Q: Do the defogger and outside/inside air selection
damper control motor work normally?
YES :
Go to Step 2.
NO : Refer to Inspection procedure 10
"Malfunction of the A/C-ECU power supply
system P.55-56 ."
STEP 2. Check the blower motor operation.
Q: Does the blower motor work normally?
YES :
Go to Step 3.
NO : Refer to Inspection procedure 5 "Blower fan
and motor do not turn P.55-29."
STEP 3. Check the A/C compressor.
Check the A/C compressor for compressor oil leaks.
Q: Is the check result satisfactory?
YES :
Go to Step 4.
NO : Replace the A/C compressor or the
expansion valve.
STEP 4. Connector check: B-114 A/C compressor
connector and C-123 engine-ECU connector
or C-122 engine-A/T-ECU connector
Q: Is the check result normal?
YES :
Go to Step 5.
NO : Repair the connector.
AC303786
Connector: B-114
<4G1-R.H.D.>
AB
Harness side
B-114 (B)
AC303794
Connector: B-114
<4G6-R.H.D.>
AB
Harness side
B-114 (B)
AC303817
Connectors: C-122 , C-123
AF

C-122C-122 (GR)
C-123 (Y)
C-123 Harness side