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Forscan Auto Start/Stop turn off?
- Thread starter mattastic13
- Start date
The start-stop feature is controlled by the ECU and FORScan can’t access the ECU. The ECU actually performs the stop-start function based on alternator/battery output/voltage, A/C compressor status, engine coolant temp, and I think one or two more parameters. This is why you get fooled into thinking you’ve disabled it yet later it is still working.
However, I do think FORScan can disable it. If I remember right, it’s in at least two modules, maybe three that provide one or more of the stop-start decision parameters I mentioned above.
It takes a bit of time/effort, but you’ll need to open every module and read each line description to find it.
However, I do think FORScan can disable it. If I remember right, it’s in at least two modules, maybe three that provide one or more of the stop-start decision parameters I mentioned above.
It takes a bit of time/effort, but you’ll need to open every module and read each line description to find it.
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You can't turn off ASS with Forscan. The only method that currently works, and maintains the ability to turn it on with the physical button next to the shift knob, is with the ASS Eliminator.
The status you screenshot in that module simply shows the current state. If you were to push the ASS button you would see that value change to Disabled but it doesn't disable permanently. Usually after the next on/off cycle, the ASS returns to factory state.
The status you screenshot in that module simply shows the current state. If you were to push the ASS button you would see that value change to Disabled but it doesn't disable permanently. Usually after the next on/off cycle, the ASS returns to factory state.
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The low battery issue does turn o the ASS feature. I had my 2020 serviced many months ago for a number of recall issues (back up camera, AWD failure, etc.) and all issues were fixed with new modules and code resets. One positive result is that the ASS no longer functioned. No complaint here. But recently I started getting the low battery notices so I had the battery replaced. Maybe it was the disconnect period or the new AGM battery, but now the ASS feature is back.
My 22 has 11k miles. For the last thousand miles or so, my ASS hasn’t operated at all. Maybe once or twice in there. I click over to the widget and I believe it usually says something like disabled vehicle charging. I’ve been cautiously waiting to have some electrical issues if the battery goes bad. It’s been nice not having to hit the bottom though. I will say, a lot of my trips are 10’miles or less. So maybe my battery just gets minimal charging with each start up. Who knows. I think my battery just isn’t as strong as it was when brand new. But it’s only 11k!
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I'm not saying you might not have hit on a magic combination, but in the last 3 years, and several threads on the subject, no one has figured out a way to truly disable the ASS via Forscan over the long term.
You can certainly buy the wire-in ASS eliminator which works. Some tuners can also disable it. And speaking from my own experience and others like @st8 , as the battery begins to fail, it will also be disabled. I have heard anecdotally, that a low oil life indicator will also disable it.
You can certainly buy the wire-in ASS eliminator which works. Some tuners can also disable it. And speaking from my own experience and others like @st8 , as the battery begins to fail, it will also be disabled. I have heard anecdotally, that a low oil life indicator will also disable it.
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