However, by the mid-1980s, left and right turn signals, windshield wiper, headlight/high-beam activation, and hazard light operation were all incorporated into one "multifunction switch" (MFS ...

It also controls the windshield wipers and houses the hazard flasher switch. That’s why Ford refers to this gizmo as the “multifunction switch.” So, if your wipers, hazards, or turn signals ...

The Smart Junction Box (SJB) software logic may not properly interpret the signals received from the multifunction switch, which could cause the turn signal to activate in the opposite direction ...