testing oil pressure warning light

[fastcar1cars]

hi all
how would i test my oil warning light? Pull the plug off the sensor and earth it? Or pull it off and put a live to it?
Also what should be lighting up on my digi dash?
Cheers

[Jon_nova1]

earth it

[fastcar1cars]

Cool! And whats should light up on my digi dash?

[Jon_nova1]

It depends what sender you have, more than likely just the oil warning light

[fastcar1cars]

what on the lcd part or jus a bulb?