2004 545i Rear Brake Sensor Car Side Wiring

[Matrix733]

All,

I bought a 2004 545i that has a brake pad worn warning for the rear wheel. I bought new sensors but after taking off the wheel on driver rear, the only sensor I see is the ABS. The car side plug for the brake sensor is non existent. I am trying to track down where that wire go but had no luck looking from the trunk side.

If I can't find this wire I need to figure out how to disable that one from somewhere else but I would rather try to repair first. Any ideas on where this wire routes to or a diagram would be much appreciated. The passenger rear has two sensors in the box and one is clearly the brake sensor unlike the other side.

I have. Attached a picture of box missing the car side plug.

Thanks