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Battery Life On My Key- Please Help


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Hi all,

I recently picked up a 1993 es300. The car runs great, looks great and feels great. I love it. However, the keyless entry system is giving me trouble. After a series of trial and error scenarios, I've come to find out that the remote entry works fine, its the key that is draining the battery (the small 1216) almost immediately after installing it. Has anyone ever heard of this?

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I had the same problem with my 1995 key recently - new battery (only the third one needed in 13+ years) drained quickly. Turned out that guck had worked its way past the key button and was essentially shorting out the switch. Carefully cleaning the insides around the switch area using one of those little electric shaver brushes, dry at first and then dipped in alcohol, did the trick.

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