Why does my rear turn signal lights flash when ignition switch is turned on?

If your rear turn signal lights flash when the ignition switch is turned on, it may indicate a malfunction in the turn signal circuit or a faulty relay. This could be caused by a short circuit, a problem with the turn signal switch, or a wiring issue. It might also suggest that the vehicle's electrical system is experiencing a fault that needs attention. Consider consulting a mechanic to diagnose and resolve the issue.