what is this plug? 2001 Discovery 2 SD. It started as a donor and now its worth saving! I am curious as can be though. On the passenger side, under the vehicle at about the door there is a plug dangling down. Everything seems okay but for the life of me I cannot find where it goes or what its for. Now, I havent really looked hard and long but I am puzzled for the time being for sure. Anyone have any clues?

 

'Passenger' means different things depending on where you're based. Are you in the states? Front door or rear door? If you could post a photo that would be super helpful.

 

USA truck so left hand drive. Front passenger door.
USA truck

 

Hmm, very interesting. I have two discos and neither have a plug anywhere near there.

 

Looks like an ACE sensor plug under passenger floor

 

That looks like the ACE sensor (accelerometer) plug. If you don’t have ACE it doesn’t plug in to anything. I had the same question a while back! Here’s the pic I posted when my question got answered. I found it after I removed my running boards.