48-20501 Pulse Preventor

PULSE PREVENTOR  for use w/All Electronic Brake Controls.  Prevents brakes from pulsing while 4-way flashers are on.

Immunizes against the effects of 4-Way flashers on some brake controls, when driving with hazard flashers is necessary.  Pulse Preventer is usually not necessary for vehicles that have a different bulb for turn signal than brakes (ie. Amber turn signals).  

View Installation Manual