89' mx5, got any ideas. Can it be used for something? etc. Thanks

 

Looks like the power steering signal but I'm not sure. Check the wiring diagrams that are posted on this forum.

 

Being colour blind doesn't make things easy, it's either blue and yellow or blue and orange haha. I'll find out when the older folks come home. And according to the diagram, could probably be the power steering pressure switch.

 

Yes