Has there been many replacements for the light modulator on this car? on 2004 Mercury Grand Marquis

The lights come on and off and we were told it was the light modulator. Is this a big problem with this year and car?

Asked by for the 2004 Mercury Grand Marquis
their is not a big problem with this module but they do go out. have replaced several, mostly police cars. has to be reprogrammed when replaced. located above accel pedal.