2005 MITSUBISHI LANCER Group 80

SPEAKER
CHASSIS ELECTRICAL54A-93
SPEAKER
REMOVAL AND INSTALLATIONM1544002600454
AC305311AB
12
3
4
5
Front speaker removal steps
1. Front door trim (Refer to GROUP
52A, Door trim P.52A-15.)
2. Front speaker
Rear speaker removal
steps
3. Rear speaker garnish
4. Rear speakerRear speaker removal
steps
5. Quarter trim upper (Refer to
GROUP 52A, Trims P.52A-11.)
6. Rear speaker

ANTENNA
CHASSIS ELECTRICAL54A-94
ANTENNA
REMOVAL AND INSTALLATIONM1544002900529

Pre-removal and Post-installation Operation
•Front pillar trim, Rear pillar trim, Centre pillar trim lower,
Centre pillar trim upper (Refer to GROUP 52A − Trims
P.52A-11.)
•Headlining Removal and Installation (Refer to GROUP
52A, Headlining P.52A-21.)
AC305315AB
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-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

55-1
GROUP 55
HEATER, AIR
CONDITIONER AND
VENTILATION
CONTENTS
SERVICE SPECIFICATIONS . . . . . . .55-3
LUBRICANTS . . . . . . . . . . . . . . . . . .55-3
SPECIAL TOOLS . . . . . . . . . . . . . . . .55-4
TROUBLESHOOTING . . . . . . . . . . . .55-5DIAGNOSIS TROUBLESHOOTING
FLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-5
SYMPTOM CHART . . . . . . . . . . . . . . . . . . . 55-5
SYMPTOM PROCEDURES . . . . . . . . . . . . 55-5
CHECK AT ECU TERMINAL . . . . 55-67
CHECK AT ECU TERMINAL . . . . 55-68
Continued on next page
W ARNING S RE GA RDING S E RV ICIN G O F SUP P LE MEN TAL R ES TRAI NT S Y ST EM (SRS ) E Q UIP PE D VE HICL ES
I mp roper se rvi ce o r m ai nte na nce of a ny c omp onent of the SRS , or an y SRS -re la te d c om pone nt, ca n le a d to
personal injury or death to service personnel (from inadvertent firing of the air bag) or to the driver (from
re nd er ing the S RS inop er ati ve).
S e rvic e or m ai nten anc e of an y SRS com pon ent or SRS -re late d com pone nt m ust be pe rfor me d only a t an
authorized MITSUBISHI dealer.
M ITSUBISHI dealer p erso nnel must thoroughly review th is man ual, and esp ecially its GROU P 52B - Su pplemen tal
Restraint System (SR S) b efore beginn ing an y service o r maintenance of any comp onent of th e SRS or any SRS-
rel ated com ponent.
NOTE
The SRS includes the following components: front impact sens ors , SRS-ECU, SRS warning lamp, air bag module, c lock spring
and interconnecting wiring. Other SRS-related components (that may have to be remov ed/installed in connection with SRS
service or maintenance) are indicated in the table of c ontents by an asterisk (*).

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 VENTILATION55-9
Prior to the wiring harness inspection, check
intermediate connector C-106, joint connector C-35,
junction block connectors C-209 and C-210, and
repair if necessary.
•Check the outside/inside air selection damper
control motor power supply line for open circuit.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00, How to
Cope with Intermittent Malfunction P.00-5).
NO : Repair the wiring harness.
STEP 5. Connector check: C-139 A/C-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 6.
YES : Go to Step 7.
NO : Repair the connector.
AC303823
Connectors: C-209, C-210
AE
C-210
Junction block (front view)
C-209
C-209
Harness side
1016
145
12134117 238 9
C-210
Harness side
4 65321
AC303802
Connector: C-139

AE
C-139 (B)
Harness side
AC303818
Connector: C-139

AJ
Harness side
C-139 (B)
11 12657 8 9 103 421

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-14
STEP 6. Connector check: C-139 A/C-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 7.
NO : Repair the connector.
STEP 7. Voltage measurement at C-139 A/C-ECU
connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Turn the blower switch to the "ON" position.
(4) Measure the voltage between terminal 8 and
body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 10.
NO : Go to Step 8.
STEP 8. Connector check: C-109 resistor
connector
Q: Is the check result normal?
YES :
Go to Step 9.
NO : Repair the connector.
STEP 9. Check the wiring harness between C-109
resistor connector terminal No.4 and C-139
A/C-ECU connector terminal No.8.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00, How to
Cope with Intermittent Malfunction P.00-5).
NO : Repair the wiring harness.
AC303802
Connector: C-139

AE
C-139 (B)
Harness side
AC303802
Connector: C-139

AE
C-139 (B)
Harness side
AC301541EX
Connector C-139
(Harness side)
9
1
1574
12
1110
23
13
5
14616
8
AC303804
Connector: C-109

AE
Harness side
AC303804
Connector: C-109

AE
Harness side
AC303802
Connector: C-139

AE
C-139 (B)
Harness side