Mitsubishi MOTORS Lancer 2004, Workshop Manual

Page: 67 / 638

TROUBLESHOOTING
ENGINE COOLING
14-21
INSPECTION PROCEDURE 4: Cooling Fan (R.H.) <4G1> or A/C Condenser Fan <4G6> does not
Operate {When Cooling Fan (L.H.) Operate} <Vehicles with A/C>
COOLING FAN (L.H.) AND COOLING FAN
(R.H.) OR A/C CONDENSER FAN DRIVE
CIRCUIT
Refer to P.14-6 .
CIRCUIT OPERATION
Refer to P.14-6 .
TECHNICAL DESCRIPTION
The cause could be a malfunction of the cooling fan
motor (R.H.) <4G1> or A/C condenser fan motor
<4G6> or cooling fan motor drive control unit.
TROUBLESHOOTING HINTS
•
Malfunction of cooling fan motor (R.H.) <4G1> or
A/C condenser fan motor <4G6>
•
Malfunction of cooling fan motor drive control unit
DIAGNOSIS
STEP 1. Check the cooling fan motor (R.H.)
<4G1> or A/C condenser fan motor <4G6>.
Cooling fan motor (R.H.) check. (Refer to P.14-25 )
<4G1>.
A/C condenser fan motor check. (Refer to GROUP
55
P.55-97 ) <4G6>.
Q: Is the cooling fan motor (R.H.) <4G1> or A/C
condenser fan motor <4G6> in good condition?
YES :
Go to Step 2 .
NO :
Replace the cooling fan motor (R.H.) (Refer
to
P.14-35 ) <4G1> or A/C condenser fan
motor (Refer to GROUP 55 P.55-96 )
<4G6>. Then go to Step 3 .
STEP 2. Check the cooling fan motor drive
control unit.
Refer to P.14-23 .
Q: Is the cooling fan motor drive control unit in good
condition?
YES :
Go to Step 3 .
NO :
Replace the cooling fan motor drive control
unit (Refer to
P.14-35 ). Then go to Step 3 .
STEP 3. Check the symptoms.
Q: Do the cooling fan (R.H.) <4G1> or A/C condenser
fan <4G6> operate (when the cooling fan (L.H.)
operate)?
YES :
This symptoms is complete.
NO :
Return to Step 1 .