It's only bolted to the bracket, not connected to anything else under seat. The wiring disappears into large harness coming through firewall under dash.
That is the acceleration sensor for your ABS brakes. It lets the ABS computer know if your stopping real fast and how hard. Its basicly a mecury switch.
'93 YJ 4.0L, AX-15, NP-231HD/SYE, 8.8in rear, OME 2.5 lift, home made front hub conversion, hydroboost. Warn M10000 winch. Currently building a stroker.
'79 Cherokee Chief, 401 MPFI fuel injection, T-18/D-20 and hydroboost. Otherwise stock.