The headlamp washer relayJ50 is supplied by the line for fuse F5 of the fuse junction unit B1A and is energized by the line controlled by the ignition (INT/A) from fuse F31 of the underdashboard junction unit B2.The relay operates the headlamp washer pumpN25directly when the command arrives from the Body ComputerM1.The Body Computer, in turn, processes the signal, at pin 14 of connector A, coming from the steering column switch unitH5 and the go ahead with the main beam or dipped headlamps on.