Electrical Troubleshooting

[BOOTLEG]

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?

[Gelbster]

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.

[Jamesp]

Originally Posted by BOOTLEG

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?

Pull the fuse. What doesn't work anymore?

[78F350]

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: