In a 2010 Subaru Forester, this particular wire prompts a linked machine, reminiscent of a backup digicam or parking sensor system, when the car is shifted into reverse. This activation is achieved by sending a 12-volt sign by means of the wire upon participating reverse gear.
Understanding the proper wire’s coloration is essential for profitable aftermarket installations. Tapping into the improper wire can result in malfunctioning gear or injury to the car’s electrical system. This automated activation enhances security and driver consciousness throughout reversing maneuvers. Earlier than the prevalence of built-in infotainment methods, aftermarket options had been usually applied utilizing this methodology.