This cap is plugged into an empty Deutsch socket. Is this a spare ACC plug? Sorry for my ignorance. Thanks.

 

Anyone?

 

Might help if you draw a circle around what you're referring in the picture and mention what year and model of bike. I have no idea what you are referencing in the pic... but somebody might know what you're talking about.

 

This cap is inserted into a Deutsch plug (underneath). I'm wondering if that plug is a spare ACC. plug

 

The part circled is a relay.

 

There are some sharp electrical guys on here, so hopefully they’ll know... but I think that black plastic case you circled is a “relay holder”, and as a matter of fact what you circled looks like it has relay information on it. But that’s just a guess... hopefully someone that knows for sure will chime in...

edit:... beat me to it Okie44 lol

 

Starter relay. Also works for fuel pump and brake lights

 

Thank You everyone !

 

Thanks for the tip.... check out my new signature.