2002 Explorer Back-up Sensor

My backup sensors no longer work. When I put the vehicle in reverse the sensor swithch goes to off. In the last six months it worked correctly only twice. Has anyone else incurred a similiar problem. If so, what was the fix? Thanks.

Check the wiring connections on the sensor first. If they are on tight, let me know and I will research it at the shop Monday.

My backup sensors no longer work. When I put the vehicle in reverse the sensor swithch goes to off. In the last six months it worked correctly only twice. Has anyone else incurred a similiar problem. If so, what was the fix? Thanks.

Wiring seems ok to me.

Thanks for the reply.