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Inoperative rear taillights, Turn Signal lights, or brake lights? Check for adequate grounding/earthing of the plastic combination lamp assembly.
Service Bulletin
1. Check the metal-to-metal contact of the ground wire (black) from the right side tail light assembly at the grounding post on the panel inside the trunk area. Remove any paint or dirt that prevents good contact
Sedan
Coupe
2. Using an ohmmeter, check the ground wire (black) from the harness in the engine compartment to the battery negative post for continuity to the instruments and lights of the vehicle. If continuity is lacking, repair the break or replace the wire
3. A heavy gauge ground strap connecting the engine to the body of the vehicle assures proper grounding. The ground strap is built into the original negative battery cable
