High speed only wipers


#1

I have a 2004 Pontiac Grand Prix. The wipers only work on high speed and do not settle when they are turned off.


#2

The problem is probably with the wiper motor pulse board.

When GM vehicle wipers start acting goofy, the pulse board is the first suspect.

Tester


#3

+1 for @Tester .


#4

I’m wondering if it could be a relay, like on a fan motor that will only run on a single speed.