no power to the gauge?

[Pit Viper]

Richard,

We finished hooking up the system, and went through the "start up" proceedure. No lights on the gauge are coming on. When I turn the car on, the yellow and green led's on the controller from the ecu are lighting up and flickering, but nothing else. I have 12V switched power coming in on the red-white-black-purple harness, and a good ground. Everything is hooked up except the water level indicator. I'm at a bit of a loss as to what to check next.

Aaron