I'm also wondering where the main relay is located in a 91 accord and how to test it. This question was asked in a thread from 6/5 but no response yet... anyone know?

 

next time, instead of making a new thread and bumping the old thread, just do one. Preferably bump the old one to keep it all in the same thread.

 

Grab a haynes

 

What i would do is go to the nearest honda dealer look at the part it is located under the dash near the fuse box once you remove it take the cover off and look at the board and all of the solder joints if the board looks burnt just buy a new one if the solder joints look like they have cracks in them you can try and solder them.
I just replaced mine it cost 61.09 from the dealer
I did notice that you could probably switch the covers and return the old one
the plastic seems to be a slight different color

 

Well I figured since no one replied to the same question buried in an old thread that I would post this question here so someone would see it. No point in posting the same question twice in a thread that obviously no one is looking at.

 

main relay is located driver side of car under the dash if you have cruise, it is above the cruise control box, looking at it from the bottom it is kind of rusty/ brown in color it has i believe 7 wires going to it

 

oops as for testing it once relay is out, open up the casing chk the soldering make sure there is no cracks if you see cracks resolder and reinstall