2004 Pontiac Grand Am Q&A
2004 Pontiac Grand Am Question: Where are the power and ground signals to the wiper motor?
You need to locate the wiper motor, there is one ground wire and 4 power wires. 1 power wire has voltage whenever the key is on, and the other 3 will have 12 volts depending on which wiper speed you select. - Bret Bodas