No.	Step	Check	Yes	No
	1	CHECK POWER SUPPLY TO MAIN FAN MOTOR. CAUTION: Be careful not to overheat engine during repair. 1) Turn ignition switch to OFF. 2) Disconnect connector from main fan motor. 3) Start the engine, and warm it up until engine coolant temperature increases over 95°C (203°F). 4) Stop the engine and turn ignition switch to ON. 5) Measure voltage between main fan motor connector and chassis ground. Connector & terminal (F17) No. 2 (+) - Chassis ground (-):	Is the voltage more than 10 V?	Go to step 2.	Go to step 5.
	2	CHECK GROUND CIRCUIT OF MAIN FAN MOTOR. 1) Turn ignition switch to OFF. 2) Measure resistance between main fan motor connector and chassis ground. Connector & terminal (F17) No. 1 - Chassis ground:	Is the resistance less than 5Q?	Go to step 3.	Repair open cirВ­cuit in harness between main fan motor connector and chassis ground.
	3	CHECK POOR CONTACT. Check poor contact in main fan motor conВ­nector.	Is there poor contact in main fan motor connector?	Repair poor conВ­tact in main fan motor connector.	Go to step 4.
	4	CHECK MAIN FAN MOTOR. Connect battery positive (+) terminal to termiВ­nal No. 2, and negative (-) terminal to termiВ­nal No. 1 of main fan motor connector.	Does the main fan rotate?	Repair poor conВ­tact in main fan motor connector.	Replace main fan motor with a new one.
	5	CHECK POWER SUPPLY TO MAIN FAN RELAY. 1) Turn ignition switch to OFF. 2) Remove main fan relay from A/C relay holder. 3) Measure voltage between main fan relay terminal and chassis ground. Connector & terminal (F66) No. 26 (+) - Chassis ground (-):	Is the voltage more than 10 V?	Go to step 6.	Go to step 7.
	6	CHECK POWER SUPPLY TO MAIN FAN RELAY. 1) Turn ignition switch to ON. 2) Measure voltage between main fan relay terminal and chassis ground. Connector & terminal (F66) No. 28 (+) - Chassis ground (-):	Is the voltage more than 10 V?	Go to step 10.	Go to step 9.
	7	CHECK 20 A FUSE. 1) Remove 20 A fuse from A/C relay holder. 2) Check condition of fuse.	Is the fuse blown-out?	Replace fuse.	Go to step 8.

	No.	Step	Check	Yes	No
	8	CHECK POWER SUPPLY TO A/C RELAY	Is the voltage more than 10	Repair open cir-	Repair open cir-
		HOLDER 20 A FUSE TERMINAL.	V?	cuit in harness	cuit in harness
		Measure voltage of harness between A/C		between 20 A	between main
		relay holder 20 A fuse terminal and chassis		fuse and main fan	fuse box connec-
		ground.		relay terminal.	tor and 20 A fuse
		Connector & terminal			terminal.
		(F27) No. 1 (+) - Chassis ground (-):
	9	CHECK FUSE.	Is the fuse blown-out?	Replace fuse.	Repair open cir-
		1) Turn ignition switch to OFF.			cuit in harness
		2) Remove fuse No. 18 from joint box.			between main fan
		3) Check condition of fuse.			relay and ignition
					switch.
	10	CHECK MAIN FAN RELAY.	Is the resistance more than	Go to step 11.	Replace main fan
		1) Turn ignition switch to OFF.	1 MQ?		relay.
		2) Remove main fan relay.
		3) Measure resistance of main fan relay.
		Terminal
		No. 26 - No. 25:
	11	CHECK MAIN FAN RELAY.	Is the resistance less than	Go to step 12.	Replace main fan
		1) Connect battery to terminals No. 27 and	1 Q?		relay.
		No. 28 of main fan relay.
		2) Measure resistance of main fan relay.
		Terminal
		No. 26 - No. 25:
	12	CHECK HARNESS BETWEEN MAIN FAN	Is the resistance less than	Go to step 13.	Repair open cir-
		RELAY TERMINAL AND MAIN FAN MOTOR	1 Q?		cuit in harness
		CONNECTOR.			between main fan
		Measure resistance of harness between main			motor connector
		fan motor connector and main fan relay termi-			and main fan
		nal.			relay terminal.
		Connector & terminal
		(F17) No. 2 - (F66) No. 25:
	13	CHECK HARNESS BETWEEN MAIN FAN	Is the resistance less than	Go to step 14.	Repair open cir-
		RELAY AND ECM.	1 Q?		cuit in harness
		1) Turn ignition switch to OFF.			between main fan
		2) Disconnect connector from ECM.			relay and ECM.
		3) Measure resistance of harness between
		main fan relay connector and ECM connector.
		Connector & terminal
		(F66) No. 27 - (B134) No. 3 (SOHC
		MODEL):
		(F66) No. 27 - (B84) No. 2 (SOHC w/o
		OBD MODEL):
		(F66) No. 27 - (B137) No. 17 (DOHC
		TURBO MODEL):
	14	CHECK POOR CONTACT.	Is there poor contact in	Repair poor con-	Contact your
		Check poor contact in connector between	connector between main	tact connector.	Subaru distributor.
		main fan and ECM.	fan motor and ECM?