Brake Lamp: Testing and Inspection

Quick-Checks:

1. Check fuse #3 (S3) by turning ignition key to "On" and testing the horns. If the horns work, then fuse #3 (S3) is OK.
2. Check ground connections (Coupe Quattro only) by checking other rear lights. If they are also off, look for a poor connection between the rear lamp assembly connector(s) and ground. See wiring diagram for terminal identification. Connector Views