clear rear light units

Hi Everyone

Hope sombody outthere can help me i have a 328i convertible and have changed the rear light units to clear ones however the computer is now saying tail light failure and there is nothing wrong all lights are working correctly your help would be much appreciated

thanks

For some reason my 325is has the same problem. The only thing i can figure is that the new lights had a looser connection than the factory lights, and if the connection is looser and you hit a bump and the circuit is broken, the computer detects this and the tail light out message will stay on until the car is turned off.