This is for a 2016 RAM 2500, Laramie Limited.
So I've been looking for this issue a while. As a temp fix left a trickle charger on one of the batteries overnight.
Recently, whatever the short is has been drawing so hard that if I leave the batteries connected for 10 hours, they're too low to crank the engine (11 volts).
I've had no fuses blowing, and the only electrical issues noticed are turn signals fast blinking and headlight/plate light/tail light out messages popping up, which are probably unrelated.
Still, my turbo gauge dropped offline, the turbo module seems dead, and the exhaust brake is offline (thankfully, the exhaust brake vanes failed to open).
I've measured almost 2v(1.5-1.8) being drawn when I have one lead on the positive cables and the other on the disconnected negative, or the frame.
I pulled all fuses individually and there was no difference.
Here's the strange part that I just recently noticed.
The voltage of the short initially reads almost 2v after disconnecting both battery's negatives.
Then, over 5-10m, it will bleed down .1v at a time until it's around .5v draw, and then it just drops offline to around 250 millivolts(basically not shorted anymore).
Any ideas on this are appreciated.
Should I be looking at solenoids or somehow a magically slow release relay? PCM?
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