rliles1

Not my discovery, but I will insert it here. For almost $300.00, there is. It will even remember the A.S.S. setting too. Ford-Memorizer

Whysoangry

I disabled with FORScan, but it appears that I've disabled battery management, which seems like something I want. Who wouldn't want their battery managed? So I might just go back to hitting the button as part of my "pre-flight" routine.

02fx4dude

I initially used the jumper method in post 1 of this thread. While it turned off the A.S.S. on startup I also lost the ability to use turn it back on if I so desired. So I removed the jumper and used a relay to reverse the button operation and it now starts with A.S.S. turned off but lets me turn it on/off at will with the push button. Could probably use a Transistor to do the same if you prefer one of those over a relay. Other options would be a toggle switch in place of the jumper at the button, or a toggle switch to open the circuit to the brake pedal connector.

aspade

Not to call you out in particular fx4dude, this was just the last post to claim this, but I don't at all understand the desire to turn it back on. When you do the math the gas savings are for all intents and purposes zero. Between the engine hour meter and the trip computer I figured out that running stop start when it wasn't annoying enough for me to reach over and turn it off (read: when the AC wasn't on) saved me 10 hours of idle time in the year before I fixed it permanently with the jumper. That's six bucks. Kicking in for 30 seconds at a light saves you literally half a penny.

How much do these trucks cost again?

elptxjc

Hey guys, first time I read about the 'jumper' method. Will go back to post #1 and check it out. But first, do you only disable A/S/S and not the battery management system, like with FORscan or by disconnecting the battery connection? Want to make sure it'd only disable A/S/S and nothing else. I'm curious about the relay option. Could you please post instructions, 01fx4dude? Thanks man.

jp2012

I am the "older generation", and I use A/S/S almost all the time. I don't feel like I've been dragged anywhere. I also recycle about 6 times more than I throw away. Some things are just the right things to do, for today and for the future. Those who claim A/S/S is a PITA just make no sense to me. There is absolutely no inconvenience to using it. To say I won't use it because the fuel savings are not high enough also makes zero sense. The fuel savings are more than zero, which is something. It's not just about dollars, anyway. If you save a gallon of gas, it matters. The cost is inconsequential.

So there, I've broken my self-imposed rule about commenting on the value of the technology. I just didn't like being lumped into the 'older generation' bit. There are plenty of people much younger than me who are hopelessly stuck in mud of their own making.

The Ford Memorizer is a fine option, as I understand it, to make the truck remember your drive mode and A/S/S status preference. Beyond that, several forum members have used the jumpered switch, which also seems to work without any complications. And there is the plug disconnection method others have described which, it appears, has no ill affects other than affecting towing functions (if you don't tow, no problem, and if you do, just plug it back in before towing). Choose your poison, because the technology isn't going away anytime soon.

elptxjc

I read the jumper option, and I want to do that but with a switch, so best of both worlds. I'm all for environmental friendliness, but A/S/S actually wastes more gas for me, and also wears out my engine, starter, and battery. I can't remember the last time I had to sit at a light even for a minute. The ultra great majority of my stops are just for a fraction of a second, mostly at stop signs. It's also useless in stop-and-go traffic, as it'd just get you hot (no A/C), drain your battery (at which point stops working anyway), and wear out the starter. But if I sense I can use it, would use the switch to turn it back on. At least I MUCH prefer this crap than cylinder deactivation, which is not only undefeatable, but requires a lot more weight and complication on the engines, and it's way more annoying.

Has anybody removed the switch on a 2017/2018 Platinum? Want to make sure nothing changed. Instructions show to pull UP on the front tray to release the tabs. I was hoping we could just reach down from there without having to remove the 2 screws and yank on the dash, but maybe it's not possible? If not, just want to make sure we just yank on the dash as shown on older trucks. Looks like something can break easily, hence my trepidation. Ha ha. Thanks gang.

2015rubyFX4

Driving sensibility (coasting when you can, no excessive speeding etc) saves way more fuel then the stupid A/S/S does. Like I said before at idle a modern engines used drops of fuel, not enough to offset the shortened life of the battery and starter. The Engineer who came up with that should be shot.

rliles1

What makes you think the battery management system is disabled? I used ForScan to disable A.S.S. a year ago, and can't tell that the BMS is disabled. But, I don't know what to look for.

Can you share the relay method? I would be very interested in this. I want A.S.S. to default to off, but would not mind the ability to turn it on when stuck in stop and go traffic.

Whysoangry

I thought someone posted that the other day, but I can't seem to find where. I don't know what to look for either. But yes, the truck seems to run fine.