Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 382

HEATER, AIR CONDITIONER AND VENTILATION
From the previous page
Measure at the blower motor connector C-14.
D Disconnect the connector and measure at the harness
side.
D Ignition switch: ON
D Blower switch position:4
(1) Voltage between terminal 1 and body earth
OK : Battery voltage
(2) Continuity between terminal 2 and body earth
OK : Continuity
Check the following connectors: C-131, C-16, C-14.
OK
Check the trouble
symptoms.
NG
Check the harness between the blower switch and the
register, and between the register and blower motor, and
repair if necessary.
Inspection procedure 3
Air cannot be switched between inside and outside.
If the air cannot be switched between the inside and outside even though the
inside/outside switch is ON, the inside/outside changeover damper motor system
may be defective.
Check the inside/outside air changeover damper motor (Refer
to P.55-32.).
Measure at the inside/outside air changeover damper motor
connector C-10.
D Disconnect the connector and measure at the harness
side.
D Ignition switch: ON
D Voltage between terminal 7 and body earth.
OK : Battery voltage
Check the following connectors: C-10, C-107, C-32.
OK
Check the trouble
symptoms.
NG
Check the harness between the inside/outside air changeover
damper motor and the A/C-ECU.
OK
Replace manual air conditioner control panel (A/C-ECU).
OK
NG
Repair
OK
OK
NG
Repair
NG
Repair
-
(1) NG
Check the following connectors: C-215, C-210, C-131, C-14.
OK
Check the trouble
(2) NG
symptoms.
NG
Check the harness between the blower motor and the blower
relay, and repair if necessary.
Check the following connector: C-14.
OK
Check the trouble
symptoms.
NG
Check the harness between the blower motor and the body
harness, and repair if necessary.
Probable cause
D Inside/outside air changeover damper motor fault
D Harness or connector fault
D A/C-ECU fault
NG
Replace
NG
Check the following connectors: C-10, C-107, C-102, C-209,
C-210.
OK
Check the trouble
symptoms.
NG
Check the harness between the Ignition switch (IG2) and the
inside/outside air changeover damper motor, and repair if
necessary.
Troubleshooting
Repair
Repair
Repair
55-5
NG
NG
NG