Could someone please tell me where the low voltage disconnect is on my 2018 Peterbilt 579? Could someone also please tell me how to disconnect it? I know the implications of doing that and I have the resources to get started again if I ran the batteries down too low. Thank you so much for your help, everyone.
Last 6 of s/n It can have a cecu controlled disconnect in which case you can turn it off with ESA. It could also have a hardwired one that you can manually bypass
It has a cecu controlled LVD. Need to swing by the dealer or someone with ESA and they can tun it off.
So it has to be programmed out apparently. Do you know where the CECU would be located on a 2018 579 by any chance? I guess there's no other way to disable it from what you are saying? Thank you!
No there is no other way. It is a parameter inside the CECU. Cecu is located in the hotel at the lower kick panel between the two seats.
@pushbroom can you check to see if my LVD is CECU controlled or not. Vin 636140. Im having starting issues where it seems the power is getting cut to the starter or something as it dosent take but a minute maybe two at the most on jumper cables to get the truck to fire up. No slow cranking just hits hard then cuts to the click click click.
