Mitsubishi Lancer. Manual — part 261
TROUBLESHOOTING
ENGINE COOLING
14-10
STEP 11. Measure the terminal voltage at fan
control relay connector A-09X.
AC303510
AB
Fan control relay
Relay box
Connector: A-09X
A-09X
(1) Disconnect fan control relay connector A-09X
(remove the fan control relay) and measure relay
box side connector.
(2) Turn the ignition switch to the "ON" position.
AC303517AB
A-09X Connector
(Relay box side)
(3) Measure the voltage between fan control relay
connector A-09X terminal 1 and body earth.
• The voltage should measure system voltage.
(4) Turn the ignition switch to the "LOCK" (OFF)
position.
(5) Connect fan control relay connector A-09X
(install the fan control relay).
Q: Is the measured voltage system voltage?
YES :
Go to Step 14 .
NO :
Go to Step 12 .
STEP 12. Check the J/C No.6 C-12 <L.H. drive
vehicles> or C-134 <R.H. drive vehicles>,
intermediate connector A-13 <L.H. drive
vehicles> C-111 <R.H. drive vehicles> and fan
control relay connector A-09X.
AC303524
Connector: C-12 <L.H. drive vehicles>
AB
C-12
C-12
AC303525
Connector: C-134 <R.H. drive vehicles>
AB
C-134
C-134
AC303526
Connector: A-13 <L.H. drive vehicles>
AB
A-13
A-13
AC303527
Connector: C-111 <R.H. drive vehicles>
AB
C-111
C-111
6
1
5
12
11
7
9
8
10
2 3
4
AC303510
AB
Fan control relay
Relay box
Connector: A-09X
A-09X
TROUBLESHOOTING
ENGINE COOLING
14-11
Q: Are there connectors in good condition?
YES :
Go to Step 13 .
NO :
Repair or replace the connector. Then go to
Step 24 .
STEP 13. Check the harness wire between J/C
No.6 C-12 terminal 33 <L.H. drive vehicles> or
C-134 terminal 33 <R.H. drive vehicles> and fan
control relay connector A-09X terminal 1.
AC303524
Connector: C-12 <L.H. drive vehicles>
AB
C-12
C-12
AC303525
Connector: C-134 <R.H. drive vehicles>
AB
C-134
C-134
AC303510
AB
Fan control relay
Relay box
Connector: A-09X
A-09X
Q: Are these harness wires in good condition?
YES :
An intermittent malfunction is suspected
(Refer to GROUP 00 - How to use
troubleshooting
).
NO :
Repair the damaged harness wire. Then go
to Step 24 .
STEP 14. Check the continuity between fan
control relay connector A-09X and body earth.
AC303510
AB
Fan control relay
Relay box
Connector: A-09X
A-09X
(1) Disconnect fan control relay connector A-09X
(remove the fan control relay) and measure relay
box side connector.
AC303533AB
A-09X Connector
(Relay box side)
(2) Measure the resistance between fan control relay
connector A-09X terminal 3 and body earth.
• Continuity exists.
(3) Connect fan control relay connector A-09X
(install the fan control relay).
Q: Does the continuity exists?
YES :
An intermittent malfunction is suspected
(Refer to GROUP 00 - How to use
troubleshooting
).
NO :
Go to Step 15 .
TROUBLESHOOTING
ENGINE COOLING
14-12
STEP 15. Check the fan control relay connector
A-09X.
AC303510
AB
Fan control relay
Relay box
Connector: A-09X
A-09X
Q: Is the connector in good condition?
YES :
Go to Step 16 .
NO :
Repair the connector or replace the relay
box. Then go to Step 24 .
STEP 16. Check the harness wire between fan
control relay connector A-09X terminal 3 and
body earth.
AC303510
AB
Fan control relay
Relay box
Connector: A-09X
A-09X
Q: Is the harness wire in good condition?
YES :
An intermittent malfunction is suspected
(Refer to GROUP 00 - How to use
troubleshooting
).
NO :
Repair the damaged harness wire. Then go
to Step 24 .
STEP 17. Check the continuity between cooling
fan motor drive control unit connector A-18 and
body earth.
AC100293
A-18
3
2
1
Connector: A-18
AD
(1) Disconnect cooling fan motor drive control unit
connector A-18 and measure wiring harness side
connector.
AC303534AB
A-18 Connector
(Wiring harness side)
(2) Measure the resistance between cooling fan
motor drive control unit connector A-18 terminal 1
and body earth.
• Continuity exists.
(3) Connect cooling fan motor drive control unit
connector A-18.
Q: Dose the continuity exists?
YES :
Go to Step 20 .
NO :
Go to Step 18 .
TROUBLESHOOTING
ENGINE COOLING
14-13
STEP 18. Check the cooling fan motor drive
control unit connector A-18.
AC100293
A-18
3
2
1
Connector: A-18
AD
Q: Is the connector in good condition?
YES :
Go to Step 19 .
NO :
Repair or replace the connector. Then go to
Step 24 .
STEP 19. Check the harness wire between
cooling fan motor drive control unit connector
A-18 terminal 1 and body earth.
AC100293
A-18
3
2
1
Connector: A-18
AD
Q: Is the harness wire in good condition?
YES :
An intermittent malfunction is suspected
(Refer to GROUP 00 - How to use
troubleshooting
).
NO :
Repair the damaged harness wire. Then go
to Step 24 .
STEP 20. Check the cooling fan motor drive
control unit connector A-18, intermediate
connector A-13 <L.H. drive vehicles> or C-111
<R.H. drive vehicles> and engine-ECU connector
C-123 <M/T> or engine-A/T-ECU connector C-122
<A/T>.
AC100293
A-18
3
2
1
Connector: A-18
AD
AC303526
Connector: A-13 <L.H. drive vehicles>
AB
A-13
A-13
AC303527
Connector: C-111 <R.H. drive vehicles>
AB
C-111
C-111
6
1
5
12
11
7
9
8
10
2 3
4
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