Orkrist,

That's the GP relay. It should click on when you turn key to run position and stay on (energizes GP) for about 40 seconds unless you energize the starter which will cause it to shut off . It also controls the in dash GP indicator light. When the GP relay is on, check that you have ~12 volts at the GP.

If it clicks on and off, something is wrong somewhere.

If engine starts easily the GP relay is probably working correctly and the GP dash light may not be working.

P E H