I bought a 2000 civic si and I did my research and can't seem to define where this yellow plug goes to, it can't be the MES plug cause that should be two pins, right? I don't even see a 2 pin that should be the MES by my fuse box. I know the previous owner took out the SRS bulb on the cluster cause it doesn't even light up when I turn the key. Furthermore, I think my clock spring is broken cause my horn doesn't work and I don't hear the relay click. One last thing, the green and grey plug in my other pic are for the factory alarm, right?

 

I can tell you that the yellow plugs are for the SRS system. The other, I have no idea.

 

^^^^X2 SRS are always yellow. And as far as the other plug get a service manual or hopefully someone else on here knows.

 

Where exactly is the white plug located?

 

yellow plug is for srs. the grey plug is either for the cluster or to the fuse box under steering rack and the green plug is for powered accessories.

 

the grey and green plug is located on the right side under my steering column.

 

thanks everyone and your replies, I just wanna know to make sure what they are before I put my racing steering wheel on and make my horn work.