Mitsubishi Pajero Pinin 1999 Workshop Manual page 201

<Vehicles without A/C>
Fan control relay check (Refer to P.14-11.)
Check the harness wire between fan control relay and engine
control relay.
Check the harness wire between fan control relay and body
earth.
Check the harness wire between fan control relay and fan
controller.
Measure at the engine-ECU connectors C-17.
Connect the connector.
Voltage between 18 and body earth
(Engine: idling, engine coolant temperature: 80 _ C or less)
OK: 0 ± 0.3 V (Engine: idling)
OK: 0.7 V or more (When radiator fan is operating)
Fan controller check (Refer to P.14-10.)
Measure at the engine-ECU connectors C-17.
Connect the connector.
Pull out the terminal No.18 to disconnect it (Ignition switch: ON)
OK: The radiator fan motor operates.
Connect the terminal No.18 to the body earth (Ignition switch: ON)
OK: The radiator fan motor stops.
Engine-ECU terminal voltage check (Refer to GROUP 13 ± Trou-
bleshooting.)
Inspection Procedure 3
Radiator fan does not operate. <Vehicles with A/C>
The cause could be a malfunction of the radiator fan motor or an open circuit between
the fan controller and the radiator fan motor.
Replace the radiator fan motor and fan controller assembly.
Inspection Procedure 4
Condenser fan does not operate. <Vehicles with A/C>
The cause could be a malfunction of the condenser fan motor or of the fan controller.
Condenser fan motor check (Refer to
GROUP 55.)
OK
Replace the radiator fan motor and fan
controller assembly.
ENGINE COOLING ±
OK
OK
OK
OK
YES
NG
Condenser fan motor connector
Check the trouble symptom.
Troubleshooting
NG
Replace
NG
Repair
NG
Check the harness wire between fan controller and engine-ECU.
Engine-ECU terminal voltage check (Refer to GROUP 13 ± Trou-
bleshooting.)
NG
Replace the radiator fan motor and fan controller assembly.
Replace the radiator fan motor and fan controller assembly.
Probable cause
Malfunction of radiator fan motor
Open circuit between fan controller and radiator fan
motor
Probable cause
Malfunction of condenser fan motor
Malfunction of fan controller
Malfunction of wiring harness or connector
NG
OK
NG
OK
NG
Repair
NO
Repair
Replace the condenser fan motor.
14-7