Mczakk

hi, no idea if you're still a member but i'll ask anyway, were you getting these faults regarding the alarm horn, and did removing it sort it? I'm having a similar issue with a tiny parasitic drain. It's pegged my battery internal resistance at 5ohm in the BEM and so is slowly killing batteries. I read that it's the internal battery in the horn that dies after a decade or so, but the car is continually trying to charge it, so it never gets to the deep sleep (draw below 0.05amps) that it needs to reset the internal resistance, and will even see a brand new battery as dead