Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 574

<Vehicles without A/C>
Fusible link (7) check
Fan control relay check (Refer to P.14-10.)
Measure at the fan control relay connector A-07X.
Remove the relay, and measure at the harness side connector.
(1) Voltage between 2 and body earth
OK: Battery voltage
(2) Voltage between 1 and body earth (Ignition switch: ON)
OK: Battery voltage
(3) Continuity between 3 and body earth
OK: Continuity
Measure at the fan controller connector A-32.
Disconnect the connector, and measure at the harness side
connector.
(1) Voltage between 3 and body earth (Ignition switch: ON)
OK: Battery voltage
(2) Continuity between 1 and body earth
OK: Continuity
Measure at the engine-ECU connectors A-28.
Connect the connector.
Voltage between 21 and body earth (Engine: idling)
OK: 0.7 V or more (When radiator fan is operating)
Measure at the engine-ECU connectors A-28.
Connect the connector.
Pull out the terminal No.21 to disconnect it (Ignition switch: ON)
OK: The radiator fan motor operates.
Engine-ECU terminal voltage check (Refer to GROUP 13A – Trou-
bleshooting.)
ENGINE COOLING –
OK
OK
OK
OK
YES
Troubleshooting
NG
Replace
(1) NG
Check the harness wire between fan control relay and fusible
link (7), and repair if necessary.
(2) NG
Check the harness wire between fan control relay and engine
control relay, and repair if necessary.
(3) NG
Check the harness wire between fan control relay and body earth,
and repair if necessary.
(1) NG
Check the harness wire between fan controller and fan control
relay, and repair if necessary.
(2) NG
Check the harness wire between fan controller and body earth,
and repair if necessary.
NG
Check the harness wire between fan controller and engine-ECU.
Engine-ECU terminal voltage check (Refer to GROUP 13A – Trou-
bleshooting.)
Replace the radiator fan motor and fan controller assembly.
OK
NG
Repair
NO
14-5