Second new member electrical issue

['79 Dk. Green]

Another problem that has been there since before I bought it, is the Brake Pad light comes on every time the car hits a bump in the road. All sensor wires were detached, so I think it is happening within the car? The pads are all new. I would rather have the system disabled, as it is easy to check pad wear visually, unless I can finally fix it? Nothing else trips the warning light system. Thanks.