The main relay is an electrical part. Its failure is fairly common and can leave an NSX stranded, with the engine unable to start or re-start. The good news is, it is also easy to replace by anyone with a 10-millimeter socket wrench and little to no mechanical expertise. Just gently pry up the upholstered horizontal piece on the rear wall of the interior just below the interior window, remove one bolt and two connectors, re-attach everything, and you're done.
For sale is a used main relay (part number 39400-SL0-003) that is known to work properly. I kept it around as an extra, just in case I ever needed it. This part lists for $88.45. I'll sell mine for $35 including ground shipping within the continental U.S.
Contact me via Private Message or e-mail.
For sale is a used main relay (part number 39400-SL0-003) that is known to work properly. I kept it around as an extra, just in case I ever needed it. This part lists for $88.45. I'll sell mine for $35 including ground shipping within the continental U.S.
Contact me via Private Message or e-mail.
