Hi guys, really need help on this one.


Just started putting together my interior on a long restoration.

Power window motors were taken out and lubed two regulator changed.

All terminals cleaned and lubed

Now to the issue.

My front driver and rear passenger windows work perfect, BUT my front passenger and rear drivers windows do not.

Checked power on the NOT working switches and they do have power and ground but instead of reversing polarity they change polarity all together to the motor either sending both positive or both negative, that goes to both doors that are not functional.

The relays were checked, fuses checked

No wiring was ever cut or looks to be cramped anywhere, probed both motors w reverse polarity they work perfect bypassing the system.

I am pretty savvy at wiring but this is kicking my butt.

Any help welcome.

Thank you in advance