This is known as the "K6" relay in the Ford service manual, part number C7WB-10C838-C or C7WY-10B926-B. The function of this relay is to open the circuit between the two instrument panel turn indicator lamps on 1967-68 Mercury Cougar during normal turn signal operation. During emergency flasher operation, the relay points are closed (normal position) and the two instrument panel indicator lamps flash at the same time. These relays are tested and working units. UNDER DASH RELAY *NOTE*
This relay is located
on the bracket for the windshield wiper motor up the right side of the steering column. LED
headlamp light will help a bunch. **NOTE**
Need help diagnosing a Cougar turn signal problem? Victor Yarberry is the world’s most knowledgeable expert on the subject. Vic has owned Cougars since the 1970's and is the designer of all of our solid state sequential systems. There is no question he cannot answer! Here is a link
to a great source of information on the subject.