Parasitic drag on battery....Need some help.
#1
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Location: Goose Bay ,Labrador Canada
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Parasitic drag on battery....Need some help.
Hey all, got a 2012 fx4 5.0 litre with some troubles. Battery died on me a while back and seemed to be weak so i was considering a new one anyway and changed it. Day or so later it my truck would not start. Did some trouble shooting and found a circuit running thats connected to the PCM relay, i can hear something running so i found what circuit it was and removes the relay and noise goes away. I am hearing the sound around the transmission area mostly, sounds like a electric pump or fan running very faint but its there. Seems lile its on top of the transmission too but not sure . I was told maybe the airbag module which is in that area ..but need some help in locating the issue. Any ideas?
#3
Maybe try taking off the negative cable for 40 min or so, (to drain all stored power) so it will reset the system. Maybe a malfunction in a module its trying to run something with the truck off.
Best of luck to you
Best of luck to you
Last edited by Tylertown; 10-10-2019 at 04:59 AM.