Electrical Troubleshooting
 

Persistent dead battery in '01 S led me to connect my ammeter to the negative lead and found .9A flowing with nothing on. Traced it to fuse B1 which Bentley says goes to Bridge Point 9/2 and the upper right quadrant of Relay Socket 27 in Relay Panel 1. I found that location but there appears to be nothing there. Any ideas on how I find where my leaky current is going?

1 amp is big! Something is getting warm?
1. Remove Fuse B1 - confirm this stops the draining of the battery.
Make sure you can list every component that is connected to B1.Check each component for defects.
2. Replace B1+fully charged battery and first thing in the morning(when it is cool) put your hand on the alternator.If it is warm, you have found the problem.

Pull the fuse. What doesn't work anymore?

Fuse B1 sounded familiar to me, then I remembered Wayne's Coolant Flush DIY mentioning it.

Is the car a Tiptronic? That fuse powers a cooling valve for the transmission:


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