09 towncar SL electrical issues

[Rhassel]

Ever since I had to replace my alternator, I've had odd electric issues. The back windows no longer work, the wiper fluid motor doesn't engage, the speakers pop randomly even without music playing. I've tried replacing the driver door module and tested all the fuses/relays but nothing came up.

Any advice is greatly appreciated!

 

[oktowncar]

Ever since I had to replace my alternator, I've had odd electric issues. The back windows no longer work, the wiper fluid motor doesn't engage, the speakers pop randomly even without music playing. I've tried replacing the driver door module and tested all the fuses/relays but nothing came up.

Any advice is greatly appreciated!

Welcome

Any trouble codes with the issue(s) ?
When you changed the Alternator did you clean the mounting points for the Alternator before installing?
Sometimes corrosion can interfere with Currents coming to/from the alternator and create electrical Gremlins

 

[driller]

Check for AC voltage from the alternator. Too much AC ripple can limit available charging voltage and reek havoc with the vehicle electronic circuits.

 

[Action]

Or is the battery weak?

Action

 

[04TC]

+1 Have the battery checked and replace if needed