Quote Originally Posted by the evil twin View Post
That combo of lights is the classic symptom of a shagged Alternator, supply or sense wiring.

They come on and stay on when the Alternator has low/no output.

Check the voltage at the battery terminals or Alternator with the engine running and if it is below 13.8 ish then that will be the problem
Funny though as mine would only come on at high revs.