Auto start Stop

For Forscan method, which I disabled since April with no issues: Use the PSCM module. 730-03-01. xxxx xxxx **-- To disable change the "**" to 00

tsielski

I just checked, and that plug and module on the negative terminal IS there. I unplugged the wire on mine and yes, with the wire unplugged, the auto start/stop does not work. When you stop, you do get the little auto start/stop symbol on the dash, but it has a line thru it, I guess to indicate that it isn't working. I suspect that a DTIC is being generated with the wire unplugged, but it is not causing a CEL. For the time being I'll run with the wire unplugged. Sure will save $100 for that custom smart harness.
I also have FORSCAN, and would love to use that to make the change permanent with out the wiring disconnected, but don't know what HEX code needs to be changed to make that happen.

Do you have to change HEX code on the Bronco ? On my 2020 Ranger you simply find the 3 lines that mention Auto Stop and change it from YES to NO by checking a box .

Hex code changes are required to make certain changes on the F150 I had. It appears that a few character changes in one of the modules is all that is needed to eliminate the start/stop. I will find out later today when I mess with FORSCAN on the Bronco.

tsielski

I just checked, and that plug and module on the negative terminal IS there. I unplugged the wire on mine and yes, with the wire unplugged, the auto start/stop does not work. When you stop, you do get the little auto start/stop symbol on the dash, but it has a line thru it, I guess to indicate that it isn't working. I suspect that a DTIC is being generated with the wire unplugged, but it is not causing a CEL. For the time being I'll run with the wire unplugged. Sure will save $100 for that custom smart harness.
I also have FORSCAN, and would love to use that to make the change permanent with out the wiring disconnected, but don't know what HEX code needs to be changed to make that happen.

I unplugged mine as well and instantly got a service charging system soon screen and get it every time I start it. So I am back to the switch off as soon as I start.

Interesting. I didn't get anything of the sort when starting after unplugging the cable on mine. I'll start her again today and see if I get something like that after being off for 24 hours.

I stand corrected. Just started her up after sitting for 24 hours with the wire disconnected and just got that same "service charging system" message. No idea why I didn't get that immediately after disconnecting the wire, but regardless, off to mess with FORSCAN to try and disable that BS.

Just made the one character change using FORSCAN and the hated auto start/stop is disabled!! Took her for a short spin just to do a double check, and no longer do I need concern myself about that damn switch!

I bought the auto start eliminator from CJ Pony Parts.

https://www.cjponyparts.com/autostop-eliminator-for-auto-start-stop-bronco-2021-2022/p/AE032/

Seems to me just pushing the button beats any Rube Goldberg fixes mentioned so far.

ressig1

Seems to me just pushing the button beats any Rube Goldberg fixes mentioned so far.

Rube Goldberg! :ROFLMAO:

Hudman316

I bought the auto start eliminator from CJ Pony Parts.

https://www.cjponyparts.com/autostop-eliminator-for-auto-start-stop-bronco-2021-2022/p/AE032/

Good choice. I installed my ASS eliminator 9 months ago. Zero issues.

Plan about 45 min for the install. Overall install is easy. Hardest part is pulling off and re-attaching the AC dash controls. Just take your time, gentle pulling off dash, maje sure ALL clips re-attach when putting dash back on, AND put masking tape on both plastic pieces on both sides of the shifter area next to dash. This way when you pull off the lower dash it doesn't scratch that area.

I love not having to press the ASS button again. So much better. Just get in an go. Plus if I ever want ASS back on if trying to save gas while in econ mode and low revs from my MT...I just push the botton. Which I dont think you can do if you go the forscan route.

No you can't once ASS is disabled with FORSCAN. A little bit of old school. If one is in a situation where extended idling would happen, like a bad traffic jam, in which case I'd just shut the engine down. In normal driving, the fuel saved with the ASS functional is likely measured in milliliters over a full tank of gas.
The big downside of the ASS tho is the additional wear and tear on the starter and startup wear on the engine over time. On a turbocharged vehicle, like our Bronco's, rolling along at a good speed and having to quickly stop by a traffic light, the engine shuts off without any idle time to let the hot turbo's wind down a bit with no oil pressure. 30 seconds or so of idling a turbocharged engine after a spirited run adds years to the service life of a turbocharger.
The above is why I always had hit the switch when that system was functional. That harness works, as does Forscan. Forscan and the OBDII adapter is cheaper tho and offers a lot of other capabilities. It's all good tho.

tsielski

No you can't once ASS is disabled with FORSCAN. A little bit of old school. If one is in a situation where extended idling would happen, like a bad traffic jam, in which case I'd just shut the engine down. In normal driving, the fuel saved with the ASS functional is likely measured in milliliters over a full tank of gas.
The big downside of the ASS tho is the additional wear and tear on the starter and startup wear on the engine over time. On a turbocharged vehicle, like our Bronco's, rolling along at a good speed and having to quickly stop by a traffic light, the engine shuts off without any idle time to let the hot turbo's wind down a bit with no oil pressure. 30 seconds or so of idling a turbocharged engine after a spirited run adds years to the service life of a turbocharger.
The above is why I always had hit the switch when that system was functional. That harness works, as does Forscan. Forscan and the OBDII adapter is cheaper tho and offers a lot of other capabilities. It's all good tho.

Agreed. I think I turned ASS back on one time in 9 months. Don't need it and bad for turbo especially here in the desert (hot!).

Ps-if ASS is on/engine off and then you turn your A/C on...doing so will also turn engine back on. So if ever needed you can re-start your bronco with the AC power on button lol

ressig1

Seems to me just pushing the button beats any Rube Goldberg fixes mentioned so far.

The auto start eliminator is far from being anything Rube Goldberg would design. It’s actually very simple and allows you the option of leaving Auto Start in normal mode or turning it off permanently. It remembers if it was activated or not when you turned the vehicle off last. I’ve owned 5 Ford vehicles over the past several with auto start and I think it’s silly I have to turn it off manually every time I get in the vehicle but I like the ability to keep it as an option for certain situations like long traffic jams or being stuck a train.

Yeah, once my ASS is disabled, I’m done!

I thought the dummy trailer plug only worked with factory trailer wiring. I do not have factory trailer wiring. This morning I was hauling my trailer around town and noticed the auto start/stop was greyed out.

On my 2020 F-150 you can turn it off with a button on the dash, but you do have to turn it off every time you get in, not a problem once your in the habit

Rydfree

I'll try to get a pic later today but you'll spot it easy as it's the only thing on the negative terminal of the battery beside the main cable .


EDIT: It looks like this

View attachment 18057

Yep same on the Bronco. Worked to disable the ASS (most on point acronym ever) but tripped a "service charging system soon" message. Probably just an angry nanny but plugged it back in for now. I don't know why they make these gimmicks, they don't truly safe fuel economy and the most stress on an engine is upon start up so it's just silly novelty at best.

Just posting in this thread out of curiosity... why is there no ASS eliminator that you can just plug into your ODB2 port, like the one linked below? I'd prefer NOT to have to take apart the dash to install something. I'm fine with maybe going the Forescan route, eventually, but we have ASS in our 2020 Explorer and I do not like it. But something I could just plug into the ODB2 port to memorize the setting seems so much more logical/elegant of a solution.

https://www.rangetechnology.com/products/start-stop_disabler/ford/parts/RA006B

SuperMike

Just posting in this thread out of curiosity... why is there no ASS eliminator that you can just plug into your ODB2 port, like the one linked below? I'd prefer NOT to have to take apart the dash to install something. I'm fine with maybe going the Forescan route, eventually, but we have ASS in our 2020 Explorer and I do not like it. But something I could just plug into the ODB2 port to memorize the setting seems so much more logical/elegant of a solution.

https://www.rangetechnology.com/products/start-stop_disabler/ford/parts/RA006B

I would like something like this. but I will probably go Forescan unless Range Tech makes one for the 2.3l Bronco. because I will for get to push the button every time. my Equinox doesn't even have a button to turn it off but I found a work around, and that is to shift it into manual mode then + to the top gear 9 and drive like normal. it works great unless I forget to shift it up and leave it in first and hear the rev limiter do its thing but that is better than shutting off all the time. I might have to try this when the Glades gets here.