Excuse my ignorance, but what is the benefit of not having fuses and relays? How are things protected if there is a short? Does the PDM have something like self-healing fuses? Is it capable of switching higher loads so no need for relays?
Not ignorant at all, asking questions is welcomed and the way to learn, all good man...so, the PDM is solid state, there is no mechanical contacts/switches anything in it... basically with this PDM I will be able to identify each circuit on the laptop and then simply tell it what current to open at with the software, it sounds scary but it's really basic, it's all in the programming...the PDM will self reset that circuit once it blows as many times as I tell it to (up to 100), after the threshold of attempted tries to reset the circuit has passed it and it keeps blowing it will simply turn it off until I have a chance to examine it....it does a bunch of other stuff to but I don't wanna go into that and really confuse ya....
this thing gets battery power and ground, the racepak switches and switch module will Daisy chain via Can-Bus and plug right in to the brain, then there is options to hardwire in inputs if you want....after that you just wire whatever outputs you want and then program the thing...i.e. if I want blinkers then I tell that circuit to flash when switch is engaged, if I want to use it for the starter I will tell the brain it's a momentary switch and to only close while I push the button, if I want to control rad fans (which I don't, FItech is doing that) I would just hardwire in the output trigger from FItech for the fans to an input on the racepak and I would never have to touch it, it'll be automatic/no switching anything.... hopefully that makes sense.
The pros to to solid state is simplicity...you are able to eliminate all relays, all fuses, a huge amount of wires, and also eliminate a bunch of connections...you are pretty much simplifying and making the entire electrical system extremely simple and reducing a bunch of possible failure points....that being said, if the PDM fails I will have to jump my fuel injection keyed power to a 12v source, same with my lights....that alone will get me off the trail....this bronco is going to be basic in terms of reliability (nevermind the turbo that will probably blow the motor and leave me stranded, that's another talk lol)...My fuel injection controls the fans and that's the only thing electrical I will need to drive it besides the lights if it's dark out....
My plan is to wire in one circuit to battery power on either a switch or Deutsch connector for FI/lights that will always either be off or unplugged, if I lose the PDM(s) then I will just flip the switch or plug it in and get off the trail/back home.
If I confused you at all feel free to ask questions brochacho