2019-2022 Ram 1500 & Heavy Duty Parasitic Battery Drain

2019-2022 Ram 1500 & Heavy Duty Parasitic Battery Drain

The RAM trucks that are installing any upgrade that will be using the connector to the back of the Cigar Lighter to provide the 12V power and ground to the product "EZDC" harness may need to change the fuse position.

Depending on what circuit the cigar lighter is on can result in the upgrade working as intended, or it can result in a parasitic battery drain.

This can easily be corrected by moving a specific fuse in the fuse box. The location of this fuse depends on the type of truck.

The photos below are for the New Body 1500 RAM trucks. If the vehicle is a 1500, then the fuse will be located in the vehicle, not in the engine area. (Scroll further down for 2500+)
Here is a photo of the internal power distribution center, the fuses will be facing towards the seat horizontally, this fuse box is not vertical. This fuse box is located below the steering wheel behind the knee bolster.
The fuse being moved is Fuse F54 which has two orientations, A and B.
F54A which is the left most position, is shown plugged in below in that position. F54A is the position that has the Cigar Lighter fed by the battery directly.


Moving the fuse one position to the right is F54B and this is how the cigar lighter is fed power when only the ignition is on. If  you were experiencing parasitic battery draw, putting the fuse in this position eliminates that, because the park sense will then only use power when the vehicle is on.


Heavy Duty New Body RAM Trucks (2019+ 2500+)

This fuse box is by the battery in the engine bay. The Fuse is F93. Same as above, just move it one notch over.