In a 2010 Subaru Forester, this specific wire activates a connected device, such as a backup camera or parking sensor system, when the vehicle is shifted into reverse. This activation is achieved by sending a 12-volt signal through the wire upon engaging reverse gear.
Knowing the correct wire’s color is crucial for successful aftermarket installations. Tapping into the wrong wire can lead to malfunctioning equipment or damage to the vehicle’s electrical system. This automated activation enhances safety and driver awareness during reversing maneuvers. Before the prevalence of integrated infotainment systems, aftermarket solutions were often implemented using this method.
