2007 MITSUBISHI LANCER EVOLUTION rear

SWS -Troubleshooting54B-35
Terminal
No.Normal condition Checking requirements Check items
35Driver’s door lock actuator (locking
switch) inputWhen driver’s door lock locked0V
36Driver’s door lock actuator (unlocking
switch) inputWhen driver’s door lock unlocked0V
37, 38---
39Back-up lamp switch inputWhen shift lever in reverse positionSystem voltage
40---
51Diagnosis output/input check signal
outputDuring diagnosis output (when MUT-II
connected or diagnosis connector No. 1
grounded on the body.)0 - 12 V (pulse
signal)
When an input check is output0, 12 V (at input
signal change)
52Ignition switch (ACC) power supplyIgnition switch: ACCSystem voltage
53, 54---
55Hazard warning lamp switch inputHazard warning lamp switch: ON0V
56Earth (for sensors)Any time0V
57, 58---
59SWS communication lineAny time0 - 12 V (pulse
signal)
60---
61Battery power supplyAny timeSystem voltage
62---
63Vehicle speed signal inputWhen vehicle driven0 - 12 V (pulse
signal)
64 - 66---
67Diagnosis control inputWhen MUT-II connected0V
68SWS request signal outputAny time0 - 12 V (pulse
signal)
69Ignition key cylinder illumination lamp
outputWhen ignition key cylinder illumination
lamp ON2 V or below
70---
71 - 73---
74Rear fog lamp output General Export-spec. models>When rear fog lamps ONSystem voltage

SWS -TroubleshootingSWS -Troubleshooting54B-37
Terminal
No.Normal condition Checking requirements Check item
30Ignition switch (IG2) power supplyIgnition switch: ONSystem voltage
31EarthAny time0V
POWER WINDOW MAIN SWITCH
Y0794AU
Terminal
No.Check itemChecking requirementsNormal condition
1---
2SWS communication line (with power
window motor assembly)Power window relay: ON0 - 12 V (pulse signal)
3-5---
6Power supplyPower window relay: ONSystem voltage
7---
8SWS communication line (with
ETACS-ECU)Any time0 - 12 V (pulse signal)
9EarthAny time0V
10---
POWER WINDOW MOTOR ASSEMBLY
Terminal
No.Check itemChecking requirementsNormal condition
1EarthAny time0V
2Power window sub-switch (DOWN)
input (passenger’s and rear doors only)Power window sub-switch: DOWN0V
3Power supplyPower window relay: ONSystem voltage
4Power window sub-switch (UP) input
(passenger’s and rear doors only)Power window sub-switch: UP0V
6SWS communication linePower window relay: ON0 - 12 V (pulse signal)

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-3
TROUBLESHOOTING
BASIC FLOW OF TROUBLESHOOTING
Refer to Group 00 – How to Use Troubleshooting/Inspection Service Points.
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptomInspection procedureReference page
Air conditioner not working at all155 - 3
Blower motor not working255 - 4
Air cannot be switched between inside and outside355 - 5
Rear defogger not working455-6
Cold air not coming out from the air outlet555 - 7
Magnet clutch not working normally655 - 8
Condenser fan not working at all755-9
Condenser fan not working only for LO855-10
Condenser fan not working only for HI955-11
INSPECTION PROCEDURE FOR TROUBLE SYMPTOM
Inspection procedure 1
Air conditioner not working at all
Probable cause
The A/C-ECU power supply system (including earth) may be defective.DHarness or connector fault
DA/C-ECU fault
NG
Repair
NG
Check the harness between the Ignition switch (IG2) and the
A/C-ECU, and repair if necessary.
NG
Repair
NG
Check the harness between the A/C-ECU and body earth, and
repair if necessary.
NG
Replace manual air conditioner control panel (A/C-ECU).
OK
Check the trouble
symptoms.
Check the following connectors:
C-32, C-08.
C-32
(2) NG
OK
Check the trouble
symptoms.
Measure at the A/C-ECU connector C-32.
DDisconnect the connector and measure at the harness
side.
DIgnition switch: ON
(1) Voltage between terminal 10 and body earth.
Voltage between terminal 7 and body earth.
OK :Battery voltage
(2) Continuity between terminals 12 and body earth.
Continuity between terminals 3 and body earth.
OK :Continuity(1) NGCheck the following connectors:C-32, C-209, C-210
OK
Check the trouble
symptoms.

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-6
Inspection procedure 4
Rear defogger not working
Probable cause
If the rear window defogger does not work even though the rear defogger switch
is ON (a 20-minute timer operates), the defogger relay system may be defective.DDefogger relay fault
DHarness or connector fault
DA/C-ECU fault
NG
Check the harness between the ignition switch (IG2) and the
defogger relay, and repair if necessary.
NG
Repair
Replace manual air conditioner control panel (A/C-ECU).
OK
OK
Check the trouble
symptoms.
NG
Check the following connectors:C-214, C-213, C-32.
OK
Check the trouble
symptoms.
NG
Replace
NG
Repair
NG
Check the harness between fusible link No. 1 and defogger
relay, and repair if necessary.
OK
Check the trouble
symptoms.
Check the following connectors:
C-214, C-211, C-132.
C-214, C-211, C-35, C-132
(2) NG
NG
Repair
NG
Check the harness between the defogger relay and the choke
coil, and repair if necessary.
OK
Check the trouble
symptoms.
Check the following connectors:
C-214, C-216, F-19.
C-214, C-217, F-19
NG
Repair
Check the following connectors:F-06.
OK
OK
Measure at the choke coil connector F-19.
DDisconnect the connector and measure at the harness
side.
DIgnition switch: ON
DVoltage between terminal 1 and body earth.
OK :Battery voltageNG
OK
Measure at the defogger relay connector C-214.
DDisconnect the connector and measure at the junction box
side.
DIgnition switch: ON
(1) Voltage between terminal 1 and body earth.
OK :Battery voltage
(2) Continuity between terminal 5 and body earth.
OK :Battery voltage(1) NGCheck the following connectors:C-214, C-210.
OK
Check the trouble
symptoms.
NG
RepairNG
Check the harness between body earth and defogger.
NG
RepairNG
Check harness between the defogger relay and A/C-ECU.
OK
Replace choke coil.
Check the defogger (Refer to Group 54A – Defogger.).

HEATER, AIR CONDITIONER AND VENTILATION-TroubleshootingHEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-12
CHECK AT THE ENGINE-ECU TERMINAL
Terminal no.Check itemCheck whenNormal state
21Fan controller outputRadiator fan: ON0 - 0.3 Vp
Radiator fan: OFF0.7 V or more
22A/C compressor outputA/C compressor relay: OFF0Vpp
A/C compressor relay: ONBattery voltage
or temporarily
6V or more→
1V or less
24A/C-ECU input (A/C2)At A/C low loadBattery voltage
32Condenser fan motor relay (HI)Fan: OFF(engine coolant temperature:90_C
or lower)Battery voltage
Fan: ON(engine coolant tempera-
ture:105_C or lower)1V or more
34Condenser fan motor relay (LOW)Fan: OFF(engine coolant temperature:90_C
or lower)Battery voltage
Fan: ON(engine coolant tempera-
ture:105_C or lower)1V or more
45A/C-ECU input (A/C1)A/C ON (When dual pressure switch is ON)Battery voltage
CHECK AT THE A/C-ECU TERMINAL
Termi-
nal no.Check itemCheck whenNormal state
1Rear defogger switchDefogger switch: ON0Vgg
Defogger switch: OFFBattery voltage
2Inside/outside air changeover
dt(tidi)
When damper moved to inside circulation position0Vg
damper motor (outside air)When damper moved to outside air induction
positionBattery voltage
3Inside/outside air changeover
dt(i idi)
When damper moved to inside circulation positionBattery voltageg
damper motor (inside air)When damper moved to outside air induction
position0V
4Engine-ECU output (A/C1)When A/C OFF0Vgp()
A/C switch: ON, blower: ON (room temperature)Battery voltage
5Engine-ECU output (A/C2)At A/C low loadBattery voltagegp()
At A/C high load0V
6Illumination power supplyLighting switches: ONBattery voltage
7---
8Blower switch (LO)Blower switch: LOBattery voltage

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-13
Termi-
nal no.Normal state Check when Check item
9---
10Ignition switch (IG2) power supplyIgnition switch: ONBattery voltage
11Illumination earthAny time0V
12EarthAny time0V
13Air thermo sensorWhen temperature around sensor 25_C (1.5kΩ)2.2 V
14---
15---
16Air thermo sensor earthAny time0V
CHECK AT THE A/C-ECU TERMINAL
Termi-
nal no.Check itemCheck whenNormal state
1Engine-ECU output (A/C1)When A/C OFF0Vgp()
A/C switch: ON, blower: ON (room temperature)Battery voltage
2Engine-ECU output (A/C2)At A/C low loadBattery voltagegp()
At A/C high load0V
3EarthAny time0V
4Air thermo sensor earthAny time0V
5Illumination power supplyLighting switches: ONBattery voltage
6Air thermo sensorWhen temperature around sensor 25_C (1.5kΩ)2.2 V
7Ignition switch (IG2) power supplyIgnition switch: ONBattery voltage
8Blower switch (LO)Blower switch: LOBattery voltage
9Rear defogger switchDefogger switch: ON0Vgg
Defogger switch: OFFBattery voltage
10Inside/outside air changeover
dt(tidi)
When damper moved to inside circulation position0Vg
damper motor (outside air)When damper moved to outside air induction
positionBattery voltage
11Inside/outside air changeover
dt(i idi)
When damper moved to inside circulation positionBattery voltageg
damper motor (inside air)When damper moved to outside air induction
position0V
12Illumination earthAny time0V

HeaterControlAssembly
(A/C-ECU) and A/C Switch HEATER, AIR CONDITIONER AND VENTILATION-55-27
DISASSEMBLY AND REASSEMBLY
1 2
5 67 8 3
4
Disassembly steps
1. Switch panel
2. Rear window defogger switch
3. Air conditioner switch
4. Inside/outside air changeover switch
AA"5. Blow vent changeover damper cableAA"6. Air mix damper cable
7. Blower switch assembly
8. Manual air conditioner control panel
(A/C-ECU)
ASSEMBLY SERVICE POINTS
AA"BLOW VENT CHANGEOVER DAMPER CABLE
AND AIR MIX DAMPER CABLE REMOVAL
Insert a flat-tipped screwdriver into the clip through the inside
of the control base and prise out the clip claw to disconnect
the cables.
Clip
claw
(–) flat-tipped
screwdriver

HEATER, AIR CONDITIONER AND VENTILATION-Heater Unit and Blower Assembly55-30

3
42
59
1
8 76
1011
12
Disassembly steps
1. Right-hand foot duct
2. Left-hand foot duct
3. Left-hand foot duct

4. Rear heater duct A upper LH

5. Evaporator cover6. Heater core
7. Expansion valve
8. Evaporator
9. Air thermo sensor clip
10. Air thermo sensor
11. Drain plug
12. Heater case