Hi Guys, I had a strange faulty four wheel drive message that seems to have resolved itself with one exception. I thought the rocker switch diode was lit green when nothing was locked/engaged and flipped to red as low range engaged. Currently get the red light as expected when engaging low range/center differential but no green. Checked the manual and it doesn't refer to color only refers to whether the light is lit or not. '06 Turbo S. TIA