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Old Jun 22, 2021 | 06:11 PM
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Deepsea21
Joined: Dec 2010
Posts: 258
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Default Re: How to Diagnose a Battery Drain

I checked my parasitic draw and it was 129 milliamps after everything gradually shut down. Pulling and replacing every fuse 1 by one made no difference in draw with the exception of fuse #14 that serves the Diagnostic Socket (Data Link Connector). When I pulled that fuse the draw dropped to about 29 milliamps. However, I also found a fuse diagram online that says that fuse also serves the Steering Angle Sensor even though the fuse box doesn't have that listed for fuse #14, it only says Diagnostic Socket. Has anyone else checked for parasitic drain and found this fuse to be leading to the source of a majority of the drain? I'm wondering how either the Diagnostic Socket or Steering Angle Sensor could be causing parasitic drain when the car is not running.
 

Last edited by Deepsea21; Jun 23, 2021 at 05:31 PM.
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