Similar example... we had a very unhappy fella with a brand new window motor at our door at 9am.. pissed off & claiming similar.. claimed DOA expletive etc etc.... but he had put a + & - on the 2 Up / Down terminals at the same time....... Luckily it did not fry it. Simply he did not know they need a body earth and single power up or down only & we powered it up correctly in front of him.. and he left grumbling but probably appreciative........ Lucky it was not a wiper motor.. or there's a 90% chance it woud have been stuffed.
Just like household electricals.. they're so unforgiving.. be careful out there.
Maybe buy a good digital multi-meter and watch a few videos on how to skill up and use it well.
..... make sure your wiring is right.. your cars earths are strong..before you buy one. Could it be a burn't out wiper switch?? maybe its one with AUTO PARK ? .. ...and make sure IT works too.. don't stuff up pulse boards etc..
Get hold of a wiring schematic or look up youtube for wiring demo / testing wiper motors vid before you do buy one maybe..? and google "Wiper Diagram" IF you need to test a new one.. if you do .. ask why...first.. before "testing it"...
Attached below is a link video test proceedure if this helps anybody out there., it also goes over some of the 6 or 7 wiper switches that ALONE are fitted to various 70-81 Camaro's.
It's far too easy to wreck good electrical parts & pass the blame.. and certainly after being cross wired, especially on a converted dash or home made fibreglass mount etc.... they will NOT WORK.
