"Why is my door ajar light staying on?"に関する回答Don’t waste your time pulling the switch and cleaning it. Even when that works it is generally temporary. Replace the part. Also, as far as diagnosing which door, is the key in dinger also going off? If yes, drivers door. If no, any other door, but usually passenger front. It is not an issue with dirty contacts, but rather a plunger that gets sticky.