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

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09-13-2018, 01:24 PM

Cameron Sittig

Thread Starter

Join Date: Sep 2018

Posts: 3

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~~

09-13-2018, 01:47 PM

Cameron Sittig

Thread Starter

Join Date: Sep 2018

Posts: 3

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?

09-27-2018, 01:50 PM

Brett

Join Date: Sep 2018

Location: Indiana

Posts: 4

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.