Ok you Hummer lovers so here it is, I just finished installing rear bumper lights on my 03 and since I do not know what the normal function of the lights are, I need verification that they are working as they should because its a little different than what I expected.

When driving during the day (without out headlights being on) the bumper lights act as an additional stop light and turn signal.

When driving at night (headlights switched on) the bumper lights act as additional driving lights but when the signal light is activated they do not blink and when I apply the brakes they do not brighten.

Are they working properly?
Thanks for your responses in advance

 

Here is a little more information:
This set up was recommended in another thread. I tapped into the existing rear hitch harness and the wires are BRN for the Parking lights, Lite GRN for the back up lights, Dark GRN for the RT Turn signal, Yellow for the LT turn signal, Dark BLU for the electrical brakes, RED for battery and Black for ground. The connections I used utilized were the the Dark Green and yellow wires for the turn signals and brake lights (which work when head lights are OFF) and the Brown wire for the running lights (when the headlights are ON). So where did I go wrong