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Use this chart to identify the type of relay, then do the test listed for it.
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Relay
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Test
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ACC cut relay
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Normally-open type
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Accessory power socket relay
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A/C compressor clutch relay
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A/C condenser fan relay
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Blower motor relay
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Cigarette lighter relay
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Front fog light relay
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Fuel heater relay
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Horn relay
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IG2 cut relay
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Intake shutter valve relay
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PGM-FI main relay 1, 2
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PTC relay 1, 2, 3
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Power mirror defogger relay
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Radiator fan relay
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Rear window defogger relay
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Starter cut relay
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Fan control relay
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Five-terminal type
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Inhibiter relay
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Driver's super locking relay
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Passenger's super locking relay
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Normally-open type (Except PGM-FI main relay 1, 2, Rear window defogger relay, Radiator fan relay, Condenser fan relay and blower motor relay, Fuel heater relay, Intake shutter relay, PTC relay 1, 2, 3)
Check for continuity between the terminals.
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There should be continuity between the No. 1 and No. 2 terminals when power and ground are connected to the No. 4 and No. 3 terminals.
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There should be no continuity between the No. 1 and No. 2 terminals when power is disconnected.
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