Rear parking sensors, wiring diagram?

[Cartopics]

Does anyone have any knowledge on the rear parking sensors setup? After a repaint /refinish of the rear bumper I no longer have use of the rear parking sensors. The sensors were not remover or painted...I looked for the most obvious thing - under the rear bumper connection. However, it's all good and connected. Is there another lead in the trunk or fusible link to look for? I doubt all 4 sensors will die at once.

 

[arcman]

If you don't have the manual, this may be a start. These look to be on the Body CAN / LIN bus, so if any of them are not connected, all of them may not work.