poadb

Mirror Heater Output = Battery Drain

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Hi all

Experiencing a battery drain and I think it may be that my driver door mirror heater is remaining on?

Had it connected to an IDS today and one of the "currently present" fault codes was:

 

B12D8, Circuit Short To battery or Open

 

Anybody had this before, or know what my options are? Current thinking is just disconnect, but is this as easy as it sounds?

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That sound more like a general battery "earth" fault to me.  Besides disconnecting/reconnecting the battery I'd also be checking all the earthing straps (both ends) to ensure they are ALL making clean contact where they should be.

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I checked battery was connected securely.

The battery was drained again this morning so I have removed FUSE 47 (Heated Exterior Mirrors) to see if that will cure the issue.

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Did you get to the bottom of it as i have same issue 

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