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View Full Version : Battery drain FYI


GatorRX
01-26-2004, 09:04 AM
I was having an issue with my 93 240, if you let it sit for a few days, the battery would get drained down to nothing. I finally figured out the issue when I pulled the computer and ran the check engine codes on it. It was filled with codes, it was somehow in diagnostic mode all the time. I reset it as per the instructions in the FSM so it showed only '55, 55', which meant it was cleared.

That solved my problem. So if you are having a mysterious battery drain that takes several days to run your battery down, and nothing else seems to be wrong, check this out....

Ghettokracker71
01-26-2004, 12:03 PM
Hmm...thats odd,what would make the computer lock into diagnostic mode?

GatorRX
01-26-2004, 02:06 PM
Hmm...thats odd,what would make the computer lock into diagnostic mode?

Dunno, but it was on all the time. Reset it, and problem with draining battery is gone....

HaLo
01-27-2004, 06:48 AM
Dunno, but it was on all the time. Reset it, and problem with draining battery is gone....


Thanks! I'll try that, I have a battery drain on my car too... I'll also check for some short-circuits...