Mitsubishi 380. Manual - part 232

ENGINE COOLING DIAGNOSIS

ENGINE COOLING

14-12

STEP 12. Check the harness wire between intermediate 
connector A-13 terminal 2 and fan control relay connector 
A-10X terminal 3. 

Q: Are these harness wires in good condition?

YES : An intermittent malfunction is suspected (Refer to  

00-7

).

NO :  Repair the damaged harness wire. Then go to Step 

24.

AK303148

CONNECTOR: A-13

AB

A-13(GR)

04DB012A

Fusible link

No.2

Relay box

Fan control

relay

A-10X

4

ENGINE COOLING DIAGNOSIS

ENGINE COOLING

14-13

STEP 13. Check the continuity between fan control relay 
connector A-10X and body earth.

(1) Disconnect fan control relay connector A-10X (remove the 

fan control relay) and measure relay box side connector.

(2) Measure the resistance between fan control relay connector 

A-10X terminal 1 and body earth.

• Continuity exists.

(3) Connect fan control relay connector A-10X (install the fan 

control relay).

Q: Does the continuity exists?

YES : An intermittent malfunction is suspected (Refer to 

00-7

).

NO :  Go to Step 14.

STEP 14. Check the fan control relay connector A-10X.

Q: Is the connector in good condition?

YES : Go to Step 15.
NO :  Repair the connector or replace the relay box. Then 

go to Step 24.

04DB012A

Fusible link

No.2

Relay box

Fan control

relay

A-10X

4

04DB015A

A-10X Connector

(Relay box side)

04DB012A

Fusible link

No.2

Relay box

Fan control

relay

A-10X

4

ENGINE COOLING DIAGNOSIS

ENGINE COOLING

14-14

STEP 15. Check the earth connector A-14.

Q: Is the connector in good condition?

YES : Go to Step 16.
NO :  Repair or replace the connector. Then go to Step 24.

STEP 16. Check the harness wire between fan control relay 
connector A-10X terminal 1 and body earth connector A-14 
terminal 6.

Q: Is the harness wire in good condition?

YES : An intermittent malfunction is suspected (Refer to 

GROUP 00 - How to use troubleshooting 

00-7

).

NO :  Repair the damaged harness wire. Then go to Step 

24.

04DB019A

RELAY BOX

A-14

04DB012A

Fusible link

No.2

Relay box

Fan control

relay

A-10X

4

04DB019A

RELAY BOX

A-14

ENGINE COOLING DIAGNOSIS

ENGINE COOLING

14-15

STEP 17. Check the continuity between fan controller 
connector A-24 and body earth.

(1) Disconnect fan controller connector A-24 and measure 

wiring harness side connector.

(2) Measure the resistance between fan controller connector 

A-24 terminal 1 and body earth.

• Continuity exists.

(3) Connect fan controller connector A-24.

Q: Dose the continuity exists?

YES : Go to Step 20.
NO :  Go to Step 18.

STEP 18. Check the fan controller connector A-24.

Q: Is the connector in good condition?

YES : Go to Step 19.
NO :  Repair or replace the connector. Then go to Step 24.

04DB008A

1

2

3

A-24

Connector: A-24

04DB016A

A-24 Connector

(Wiring harness side)

04DB008A

1

2

3

A-24

Connector: A-24