2005 MITSUBISHI LANCER fog

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

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

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-5
TROUBLESHOOTING
DIAGNOSIS TROUBLESHOOTING FLOWM1552009600364
Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points P.00-5.
SYMPTOM CHARTM1552009900611
NOTE: Refer to GROUP 14, Troubleshooting P.14-5
for the condenser fan.
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: When the Ignition Switch is "ON" the A/C does not Operate.
COMMENTS ON TROUBLE SYMPTOM
The blower system or the compressor system may
be defective if there is no cool air coming from the
spit hole.
TROUBLESHOOTING HINTS
•Malfunction of blower motor
•Malfunction of A/C compressor
DIAGNOSIS
Check that the blower motor operation when the
blower switch is moved to the "HI" position.
(1) Turn the ignition switch to the "ON" position.
(2) Turn the blower switch to the "HI" position.
Q: Does the blower motor operate when the blower
switch is moved to the "HI" position?
YES :
Refer to Inspection procedure 3
"When the A/C is operating, temperature
inside the passenger compartment does not
decrease (cool air is not emitted).
P.55-11."
YES : Refer to Inspection procedure 4
"When the A/C is operating, temperature
inside the passenger compartment does not
decrease (cool air is not emitted).
P.55-20."
NO : Refer to Inspection procedure 5 "Blower fan
and motor do not turn P.55-29." Symptom Inspection
ProcedureReference
Page
When the ignition switch is "ON" the A/C does not operate. 1
P.55-5
Inside/outside air selection is not possible. 2
P.55-6
When the A/C is operating, temperature inside the passenger
compartment does not decrease (cool air is not emitted). 3
P.55-11
When the A/C is operating, temperature inside the passenger
compartment does not decrease (cool air is not emitted). 4
P.55-20
Blower fan and motor do not turn. 5
P.55-29
Blower air amount cannot be changed. 6
P.55-39
Rear window defogger function does not operate. 7
P.55-42
Rear window defogger Timer function does not operate. 8
P.55-52
Malfunction of the A/C-ECU power supply system. 9
P.55-53
Malfunction of the A/C-ECU power supply system. 10
P.55-56
A/C compressor power supply system. 11
P.55-59
Condenser Fan does not operate. 12 Refer to
GROUP 14
P.14-5

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-7
DIAGNOSIS
STEP 1. Check the defogger and A/C operations.
Q: Do the defogger and A/C 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 ."
NO : Refer to Inspection procedure 10
"Malfunction of the A/C-ECU power supply
system P.55-56 ."
STEP 2. Connector check: C-107 outside/inside
air selection damper control motor connector
Q: Is the check result normal?
YES :
Go to Step 3.
NO : Repair the connector.
STEP 3. Voltage measurement at the C-107
outside/inside air selection damper control motor
connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 7 and
body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 5.
NO : Go to Step 4.
AC303804
Connector: C-107

AD
Harness side
AC303816
Connector: C-107
AI

Harness side
AC303804
Connector: C-107

AD
Harness side
AC303816
Connector: C-107
AI

Harness side
AC301541
6 2
7
3
5
4
1
EF
Connector C-107
(Harness side)

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

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-42
INSPECTION PROCEDURE 7: Rear Window Defogger Function does not Operate.
IGNITION
SWITCH (IG2) FUSIBLE LINK
REAR WINDOW
DEFOGGER
RELAY
A/C-ECU OR
HEATER
CONTROL UNIT1
: SEDAN
: WAGON
: SEDAN
: WAGON
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet






NOTE
REAR WINDOW
DEFOGGERREAR WINDOW
DEFOGGER Rear Window Defogger Circuit