I've currently got PSM woes on my '04 40th AE. The dreaded 'PSM Failure. Drive to Workshop" message. My indy has had the car for a week now and had traced it to a bad PSM/SBS pre-charge pump.

He replaced that and found the control module is throwing + voltage to the pump ground which probably fried the original pump. Fool me once....

I'd love to be able to replace it with a used module but the Indy states it's coded to the car.

Can anyone confirm this before I send my fried unit out for a $700 rebuilt rather than using a $80 replacement part from a dismantler?

Thanks much.

 

What codes?

Old PSM thread: https://www.6speedonline.com/forums/...-workshop.html

Seems there are a bunch of parts involved and could be simple as loose pin or sensor?