Where is service connector on 4th gen Prelude?

 

it is located behind the center console. It is blue in the earlier years yellow I believe in later 4th gens.

 

To check CEL codes? On my 96 it's still blue. It's plugged in to a dead plug right around the corner of the driver's side of the console behind the radio/ashtray stuff...feel around and there will be two plugs, one if them is blue