2007 MITSUBISHI LANCER EVOLUTION ignition

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-9
Inspection procedure 7
Condenser fan not working at all
Probable cause
If the condenser fan does not work at all, the condenser fan circuit system may
be defective.DCondenser fan motor fault
DHarness or connector fault
DEngine-ECU fault
NG
Check the harness betweenthe condenser fan relay (LO) and
the ignition switch (IG2) , and repair if necessary.
OK
Check the trouble
symptoms.
NG
Repair
NG
Replace
OK
Check the condenser fan motor. (Refer to P.55-40.)
NGCheck the following connectors:A-06X, C-135, C-102,
C-209, C-210.
OK
Measure at the condenser fan relay (LO) A-06X.
DDisconnect the connector and measure at the harness
side.
DIgnition switch: ON
DVoltage between terminal 2 and body earth.
OK :Battery voltage
NG
Check the harness betweenthe condenser fan motor and body
earth, and repair if necessary.
OK
Check the trouble
symptoms.Repair
NGCheck the following connectors:A-46.
NG
OK
Measure at the condenser fan motor A-46.
DDisconnect the connector and measure at the harness
side.
DContinuity between terminal 2 and body earth
OK :Continuity
NG
OK
Check the trouble
symptoms.RepairNG
Check the following connectors:
C-122, A-43, A-06X.
C-122, C-136, A-06X
Replace the Engine-ECU.
OK
RepairNG
Check the harness betweenthe condenser fan relay (LO) and
the Engine-ECU.

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-10
Inspection procedure 8
Condenser fan not working only for LO
Probable cause
If the condenser fan does not work only for LO, the condenser fan circuit
system or the condenser fan relay (LO) circuit system may be defective.DCondenser fan motor fault
DCondenser fan relay (LO) fault
DHarness or connector fault
DEngine-ECU fault
NG
Check the harness betweenthe condenser fan relay (LO) and
the ignition switch (IG2), and repair if necessary.
OK
Check the trouble
symptoms.
NG
Repair
NG
Replace
OK
Check the condenser fan motor. (Refer to P.55-40.)
Check the following connectors:A-06X, C-135, C-102,
C-209, C-210.
OK
NG
OK
Check the trouble
symptoms.Repair
Check the following connectors:A-06X.
NG
NG
OK
Check the trouble
symptoms.RepairNG
Check the following connectors:
A-06X, A-43, C-122.
A-06X, C-136, C-122.
Replace the Engine-ECU .
OK
RepairNG
Check the harness betweenthe condenser fan relay (LO) and
the Engine-ECU.
(2) NG
Measure at the condenser fan relay (LO) A-06X.
DDisconnect the connector and measure at the junction box
side.
DIgnition switch: ON
(1) Voltage between terminal 2 and body earth.
OK :Battery voltage
(2) Voltage between terminal 4 and body earth.
OK :Battery voltage(1) NG
NG
Replace
OK
Check the condenser fan relay (LO) (Refer to P.55-23.)
NG
OK
Check the trouble
symptoms.Repair
Check the following connectors:A-06X, A-45.
OK
Check the harness betweenthe condenser fan relay (LO) and
the condenser fan motor, and repair if necessary.
Check the harness betweenthe condenser fan relay (LO) and
the battery, and repair if necessary.

HEATER, AIR CONDITIONER AND VENTILATION-Troubleshooting55-11
Inspection procedure 9
Condenser fan not working only for HI
Probable cause
If the condenser fan does not work only for HI, the condenser fan circuit system
or the condenser fan relay (HI) circuit system may be defective.DCondenser fan motor fault
DCondenser fan relay (HI) fault
DHarness or connector fault
DEngine-ECU fault
NG
Check the harness between the condenser fan relay (HI) and
the Ignition switch (IG2), and repair if necessary.
OK
Check the trouble
symptoms.
NG
Repair
NG
Replace
OK
Check the condenser fan motor. (Refer to P.55-40.)
Check the following connectors:A-07X, C-135, C-102,
C-209, C-210.
OK
NG
Check the harness betweenthe condenser fan relay
(HI) and the fusible link (2)
, and betweenthe condenser fan relay (HI) and the
battery, and repair if necessary.
OK
Check the trouble
symptoms.Repair
Check the following connectors:A-07
NG
NG
OK
Check the trouble
symptoms.RepairNG
Check the following connectors:
A-07X, A-43, C-122.
A-07X, C-136,C-122
Replace the Engine-ECU.
OK
RepairNG
Check the harness betweenthe condenser fan relay (HI) and
the Engine-ECU.
(2) NG
Measure at the condenser fan relay (HI) A-07X.
DDisconnect the connector and measure at the junction box
side.
DIgnition switch: ON
(1) Voltage between terminal 2 and body earth.
OK :Battery voltage
(2) Voltage between terminal 4 and body earth.
OK :Battery voltage(1) NG
NG
Replace
OK
Check the condenser fan relay (HI) . (Refer to P.55-23.)
NG
Check the harness betweenthe condenser fan relay (HI) and
the condenser fan motor, and repair if necessary.
OK
Check the trouble
symptoms.Repair
Check the following connectors:A-07X, A-45.
OK

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