Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 381

55-4
HEATER, AIR CONDITIONER AND VENTILATION
Inspection procedure 2
Blower motor not working
If the blower motor does not work, the blower motor circuit system may be
defective.
Check the blower relay. (Refer to P.55-22.)
Check the blower switch. (Refer to P.55-25.)
Check the resister. (Refer to P.55-32.)
Check the blower motor. (Refer to P.55-32.)
Measure at the blower relay connector C-215.
D Disconnect the connector and measure at the harness
side.
D Ignition switch: ON
(1) Voltage between terminals 1 and body earth
OK : Battery voltage
(2) Voltage between terminals 5 and body earth
OK : Battery voltage
(3) Continuity between terminal 3 and body earth
OK : Continuity
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OK
OK
OK
OK
OK
-
Probable cause
D Blower motor fault
D Harness or connector fault
D A/C-ECU fault
NG
Replace
NG
Replace
NG
Replace
NG
Replace
(1) NG
Check the following connectors: C-215, C-210.
OK
(2) NG
Check the trouble
symptoms.
NG
(3) NG
Check the harness between the Ignition switch (IG2) and the
blower relay, and between fusible link No. 1 and the blower
relay, and repair if necessary.
Check the following connectors:
<L.H.D.> C-215, C-211, C-132
<R.H.D.> C-215, C-11, C-35, C-132
OK
Check the trouble
symptoms.
NG
Check the harness between the Ignition switch (IG2) and the
blower relay, and between fusible link No. 1 and the blower
relay, and repair if necessary.
Check the following connectors:
<L.H.D.> C-215, C-213.
<R.H.D.> C-215, C-213, C-08
OK
Check the trouble
symptoms.
NG
Check the harness between the blower relay and body earth,
and repair if necessary.
Troubleshooting
Repair
Repair
Repair
NG
NG