Mercury Cougar no brake lights and no emergency rear lights issue on Mercury Cougar

Some Mercury Cougar owners report experiencing issues with non-functional brake lights and emergency rear lights. Common problems include blown fuses related to these lights, which should be checked first. Additionally, owners often find that the brake light switch may not be functioning correctly, particularly if the brakes have been converted from manual to power, necessitating a switch replacement. Wiring issues, such as shorts or breaks between the taillights and the brake switch, can also lead to a lack of continuity. Furthermore, the turn signal switch may contribute to the problem, as it plays a crucial role in activating the brake lights. Owners are advised to inspect the sequencer box in the trunk to ensure that all wires feeding the brake lights are operational when the brakes are applied. Lastly, if all components appear functional, checking the bulbs and housing may be necessary to resolve the issue.