The terminals on a solid state relay are typically called input terminals and output terminals. The input terminals are used to connect the control signal that activates the relay, while the output terminals are used to connect the load that is being switched on or off by the relay.
In order to test the fuel pump relay, you must check that the two control circuit terminals on the relay are not connected, using an ohmmeter. You must also test the power circuit terminals on the relay, in the same way.
best way to test a relay is remove it from board, get a 9v square battery and touch the switching terminals on the relay, the relay should click if its working. You can then test resistance through the relay. You can also check the feed to the relay, if theres pwer to the switching terminals on the relay, chances are the switch it ok. If no voltage, switch or wiring.
under the hood next to the batery relay terminals
To test the fuel pump relay on a 1991 Buick Roadmaster, first locate the relay in the fuse box under the dashboard or in the engine compartment. Use a multimeter to check for continuity by disconnecting the relay and testing the terminals; there should be continuity between the terminals when the relay is energized. Alternatively, you can swap it with a similar relay in the fuse box to see if the fuel pump operates. If the relay is faulty, it should be replaced.
By running a ground wire-(jumper) across the terminals on the fan motor relay. Find the terminals that connect to the relay's switch, and short them out like the relay would do. Doing this will burn the electric fan motor out very quickly. Your best bet is to replace the relay and possibly the coolant temperature sensor. The sensor is about $16 and the relay about $14 and the fan motor about $38-$50 at Autozone.
Heathrow has two terminals
You have to isolate the problem you are facing, if there is no fuel supply you can also have a blocked fuel filter. If you are sure of the problem, you can by-pass the relay and if the pump works then you need to replace the relay. To by-pass the relay you need a short length of 2.5mm cable to connect two (2) terminals. I shall get a diagram to indicate which terminals (in a couple of days. Regards Ehi
THE FICM RELAY IS LOCATED BY THE DRIVERS CORNER IT IS GRAY AND HAS BIG BLADE TERMINALS ON IT NOT HARD TO MISS
Only 2 terminals
The AMHS has 32 terminals.
An emergency light switch uses a relay. A relay has an 5 terminals. The firs two terminals are connected to a flowing current (current flows when there is a normal electricity) The next 3 terminals are the common, the normally on, and normally off. One of the battery terminal is connected to the common, and the other one terminal of the battery is connected to one terminal of the light bulb(which has two terminals) then the other terminal of the light bulb is connected to the normally on terminal of the relay. When current flows to the first two mentioned terminals of the relay, the circuit of the battery and light is cut off or not connected. But when the current is off, this will switch on the normally-on terminal thus current will flow from the battery to the light bulb, that will shed light. ;) on an emergency situation. note: The normally off is not use. And may be use for some purpose.