9C98는 BMW 결함 메모리에 저장된 코드입니다（ISTA 결함 코드, 표준 OBD-II P 코드 아님）。
코드 의미: Panoramic sunroof — Hall (position) sensor fault. The Hall sensors tell the roof control unit the glass position, speed and direction (also for anti-trap protection). A fault can make the roof misbehave or refuse to close/open correctly. Often fixed by re-initialising (normalising) the sunroof; if it returns, the sensor/motor or roof control unit needs checking. Not a safety-critical engine fault.
