Do you splice (tee) into the purple wire (#5) and ground it?
www.usshift.com/downloads/4R70Wmanual.pdf scroll to pg 16
Schematic looks like it shows that you cut the wire from the vehicle connector and grd it but that can't be right.
www.usshift.com/downloads/4R70Wmanual.pdf scroll to pg 16
Schematic looks like it shows that you cut the wire from the vehicle connector and grd it but that can't be right.