Bluetooth will not pair due to incorrect pin or passkey, nowhere to enter pin

[509er]

I have Nexus 7 with 6.01.  Couldn't find the answer to this thru search, which is surprising because lots of links on google but nothing so far has resolved.  Essentially my tablet sees the device I am trying to pair to, but will not pair...message received says incorrect pin or passkey.  However there is no place to enter a pin, even if I had one, which I do not.  VERY FRUSTRATING.  Please help.

[Babyfacemagee]

What device are you trying to pair with your Nexus 7?  Often times the other device comes with a pin for their bluetooth.

[509er]

It's a vehicle gauge app.  But here's the issue, even if my app did have a pin, when the error code comes up on the nexus that tells me incorrect pin or passkey, there is no place to enter a pin, even if I had one?  It just gives the error with no way to make it right?