Audi Back Up Light Switch - FAE 0B1941521A

Product Information

The back-up light switch is an electrical component that activates the reverse lights when the transmission is shifted into reverse gear. Mounted on the transmission or gear selector mechanism, it signals the vehicle’s lighting system to illuminate the rear back-up lamps, improving visibility and alerting others that the vehicle is reversing. Built with durable contacts and housings to withstand heat, vibration, and fluid exposure, the switch is essential for both safety and compliance with vehicle regulations.

• Reverse lights do not illuminate – often due to a failed or worn-out switch.
• Intermittent or flickering reverse lights – caused by loose connections or failing internal contacts.
• Check engine light or transmission-related fault codes – may appear if the switch malfunctions on electronically controlled systems.

About FAE

Founded in 1952 by Francisco Albero, FAE supplies pressure switches for the Automotive Industry. As an innovation-oriented organization since its inception, FAE has consolidated its position in the field of multilayer ceramic application design, the development of ceramic substrates and implementation of microelectronic systems. The FAE product range includes Oxygen Sensors, MAP Sensors, Timing and Revolution Sensors, Oil Pressure Switches and Transmitters, Temperature and Pressure Sensors, Stop-Light and Reversing Light Switches, Temperature and Radiator Fan Transmitters, Ignition Coils, Ignition Leads, Glow Plugs, Thermostats, Knock Sensors and Solenoids. With more than 60 years’ experience and based in Barcelona, FAE exports 75% of its turnover and is currently present in more than 80 countries, including a sales office in Miami, United States.