Power Relays Test (4D)

Power Relays Test

Use this chart to identify the type of relay, then do the test listed for it.

NOTE: for the turn signal/hazard relay input test.

Relay	Test
A/C compressor clutch relay	Normally-open type
Accessory power socket relay
Air fuel ratio sensor relay
Blower motor relay
Throttle actuator control relay
Ignition coil relay
PGM-FI main relay
Power window relay
Radiator fan relay
Rear window defogger relay
Horn relay
Hazard warning light relay (right)
Hazard warning light relay (left)
Daytime running lights relay	Five-terminal type
Seat heater relay
Sunroof close relay
Sunroof open relay

Normally-open type:

Check for continuity between the terminals.

There should be continuity between the No. 1 and No. 2 terminals when power and ground are connected to the No. 3 and No. 4 terminals.
There should be no continuity between the No. 1 and No. 2 terminals when power is disconnected.

Five-terminal type B:

Check for continuity between the terminals.

There should be continuity between the No. 1 and No. 2 terminals when power and ground are connected to the No. 3 and No. 5 terminals.
There should be continuity between the No. 1 and No. 4 terminals when power is disconnected.