Monte Carlo Forum - Monte Carlo Enthusiast Forums - 6th Gen ('00-'05): Monte Carlo 03 ss parasitic drain clus/BCM /data link connector fuse draining battery

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Cameron Sittig

09-13-2018 01:24 PM

Monte Carlo 03 ss parasitic drain clus/BCM /data link connector fuse draining battery

~~Clus/BCM/ data link connector fuse draining battery while engine not running voltage reading is 02.9 I don't know where to go from here~~

Cameron Sittig

09-13-2018 01:47 PM

Parasitic drain 03 Monte Carlo ss

Mc battery is dead if fuse that reads cluster BCM data link battery is not removed anybody know what would be causing this?

Brett

09-27-2018 01:50 PM

I had the same parasitic drain issue with my 2005 LT. What I did was cleaned my battery cables and replaced the battery rundown protection relay ( located on my LT in the passenger side fuse block ). Idk if it was just a loose/corroded batty cable or relay but after I done that I haven’t anymore battery drains. Hope this helps.

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