HELP! Circuit board

There are only 2 bulbs for illumination on the samll boards. The 2 others are left turn and indicater ( brake or high beam ) Do yo have the gauge housing grounded ?

If it is not grounded through the harness, then no.
Is there supposed to be a ground wire directly from the housing to the car?

I was thinking that, but then I see no place for a ground and all the other lights are working, including the left indicator and the high beam indicator- which are on the same board.