The passenger side low beam operates intermittently. The problem has been traced to the solid state relay on the TIPM printed circuit board. The low beam usually operates after having the selector set to high beam for 20-30 minutes. The only remedy is replacing the TIPM at substantial cost for a relatively simple and very important, safety related vehicle function. Replacement TIPM units are not readily available, and there is no temporary repair possible. This failure effectively precludes legal operation of the vehicle until the costly repair can be completed.