relay MITSUBISHI LANCER 2005 Repair Manual

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-62
STEP 5. Check the wiring harness between B-17X
A/C compressor relay connector terminal No.2
and the ignition switch (IG2).
NOTE:
Prior to the wiring harness inspection, check
intermediate connector C-135, joint connector C-35,
junction block connectors C-209 and C-210, and
repair if necessary.
•Check the A/C compressor relay 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.
AC304988AB
Connector: B-17X
Front of
vehicle
1
3 2
4
Relay box side
AC303814
Connector: C-35

AI
C-35(L)
AC303818
Connector: C-135

AH
C-135 (L)
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

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-63
STEP 6. Voltage measurement at B-17X A/C
compressor relay connector.
(1) Remove the relay, and measure at the junction
block side.
(2) Measure the voltage between terminal 1 and
body earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 8.
NO : Go to Step 7.
STEP 7. Check the wiring harness between B-17X
A/C compressor relay connector terminal No.1
and the battery.
NOTE:
Prior to the wiring harness inspection, check
intermediate connector A-13 or C-111
, and repair if necessary.
•Check the A/C compressor relay 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.
AC304988AB
Connector: B-17X
Front of
vehicle
1
3 2
4
Relay box side
AC301541EV
Connector B-17X
(Relay box side)
Front of
vehicle1
3 2
4
AC304988AB
Connector: B-17X
Front of
vehicle
1
3 2
4
Relay box side
AC303857
Connector: A-13

AB
A-13 (B)
AC303816
Connector: C-111

AF
615
121179
810234

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-64
STEP 8. Connector check: B-114 A/C compressor
connector
Q: Is the check result normal?
YES :
Go to Step 9.
NO : Repair the connector.
STEP 9. Check the wiring harness between B-17X
A/C compressor relay connector terminal No.4
and B-114 A/C compressor connector terminal
No.1.
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)
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)
AC304988AB
Connector: B-17X
Front of
vehicle
1
3 2
4
Relay box side
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)

TROUBLESHOOTING
HEATER, AIR CONDITIONER AND VENTILATION55-66
STEP 11. Check the wiring harness between
C-123 engine-ECU connector terminal No.8 and
B-17X A/C compressor relay connector terminal
No.3.
•Check the A/C compressor relay earth 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 12. Check the wiring harness between
C-122 engine A/T-ECU connector terminal No.20
and B-17X A/C compressor relay connector
terminal No.3.
•Check the A/C compressor relay earth line for
open or short 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.
AC304988AB
Connector: B-17X
Front of
vehicle
1
3 2
4
Relay box side
AC303804
Connector: C-123

AH
Harness side
C-123 (Y)
AC303816
Connector: C-123
AM

Harness side
C-123 (Y)
AC304988AB
Connector: B-17X
Front of
vehicle
1
3 2
4
Relay box side
AC303804
Connector: C-122

AG
Harness side
C-122 (GR)
AC303816
Connector: C-122
AL

Harness side
C-122 (GR)

ON-VEHICLE SERVICE
HEATER, AIR CONDITIONER AND VENTILATION55-75
POWER RELAY CHECKM1552008800309
BLOWER RELAY CONTINUITY CHECKA/C COMPRESSOR RELAY CONTINUITY
CHECK
Battery voltage Tester
connectionSpecified
condition
Not applied 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
AC305308
4
5 1
235
14
3
Blower relay
AB
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
AC305307
A/C compressor relay
AB
21
34
1
24
3
Front of
vehicle

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

HEATER CONTROL ASSEMBLY AND A/C SWITCH
HEATER, AIR CONDITIONER AND VENTILATION55-78
INSTALLATION SERVICE POINT
>>A<< BLOWER VENT CHANGEOVER
DAMPER CABLE
1. Set the heater control assembly’s blower vent
changeover knob to the DEF position.
2. Set the heater unit’s blower vent changeover
damper relay to the DEF position (turn the
damper relay to the left until it stops) and install
the cable.
3. Set the mode locator to the heater unit case and
secure with a clip.
>>B<< AIR MIX DOOR CABLE
CONNECTION
1. Turn the heater control assembly’s temperature
adjustment knob all the way to the HOT side.
2. Set the heater unit’s air mix door lever to the MAX
HOT position (turn the damper lever as the left
illustration) and attach the cable.
3. Set the mode locator to the heater unit case and
secure with a clip.
AC304856DEF position
FACE
position
AB
Mode selection
damper link
Mode locator

AC304854DEF positionFACE position
AB
Mode
selection
damper link

Mode locator
AC304857
MAX HOT
position
MAX. COOL position
AB
Air mix damper leverMode locator

AC304855MAX HOT position
MAX. COOL
position
AB
Air mix damper leverMode locator

70-1
GROUP 70
COMPONENT
LOCATIONS
CONTENTS
ECU . . . . . . . . . . . . . . . . . . . . . . . . . .70-2
RELAY . . . . . . . . . . . . . . . . . . . . . . . .70-5
SENSOR. . . . . . . . . . . . . . . . . . . . . . .70-6
FUSIBLE LINK AND FUSE . . . . . . . .70-10
EARTH CABLE . . . . . . . . . . . . . . . . .70-11SOLENOID VALVE . . . . . . . . . . . . . . .70-11
DIODE . . . . . . . . . . . . . . . . . . . . . . . . .70-13
EARTH . . . . . . . . . . . . . . . . . . . . . . . .70-14
INSPECTION CONNECTOR AND
SPARE CONNECTOR . . . . . . . . . . . .70-18

RELAY
COMPONENT LOCATIONS70-5
RELAY
M1701000400369
Name Symbol Name Symbol
A/C compressor relay A Heated seat relay B
A/T control relay A Horn relay A
Accessory socket relay B Ignition coil relay A
Blower relay B Power window relay B
Engine control relay A Radiator fan relay A
Front fog lamp relay A Rear fog lamp relay B
Fuel pump relay (1) B Rear window defogger relay B
Fuel pump relay (2) B
AC301758AB
A
B
AC303951AB
A/C compressor relayEngine control relay
Horn relay
Front fog lamp relay
Radiator fan relay A/T control relay
Ignition coil relayA
AC301760
Fuel pump relay (1)
Power window relay
Rear window defogger relay
Blower relay Heated seat relay
Fuel pump relay(2)
Accessory socket relay
Rear fog lamp relayAB
B

FUSIBLE LINK AND FUSE
COMPONENT LOCATIONS70-10
FUSIBLE LINK AND FUSE
M1701000100476
Name Symbol Name Symbol
Fuses No.1 to 20
(Passenger compartment)C Fusible links No.1 to 5
(Engine compartment)B
Fuses No.6 to 25
(Engine compartment)B Fusible link No.26
(Battery positive terminal)A
AC301758AD
AB
C
AC208658AE
A
Fusible link No.26
Battery
AC301729AD
B
Fusible link No.1
Relay box
Fusible links
No.4,5
Fusible links
No.2,3
AC301730
B
AB
Fuses
No.6 to 25
Relay box
AC301761
C
AB
Fuses No.1 to 20
Junction
block