DBLOOM Posted May 3, 2015 Share Posted May 3, 2015 Hi all, I'm wondering if somebody could perhaps point me in the right direction. I have a 2012 focus zetec s 1.6 ecoboost, and the stop/start appears to have stopped working. It was in the local ford garage yesterday and they found that the battery was only at 68% capacity so they started to charge it up, However because i need the car for the bank holiday i had to pick it up without getting the full charge so the technician told me i should trickle charge the car over night to full capacity and it should sort it. I consequently did this last night and this morning the smart charger confirmed the battery was full, yet after a long run this morning (to get everything up to temp) the stop/start will not work and the light where the button is,is constantly illuminated and won't do anything when i press it. Any help is greatly appreciated. Quote Link to comment Share on other sites More sharing options...
Randoms Posted May 3, 2015 Share Posted May 3, 2015 Sounds like a trip back to dealers, sure they'll be able to sort it. Shouldn't cost you either if it was working when you went in. Quote Link to comment Share on other sites More sharing options...
DBLOOM Posted May 3, 2015 Author Share Posted May 3, 2015 it wasn't working when it went in, that was the reason the car was in to see if they could determine the problem. Their theory was that battery capacity was low but that doesn't seem to be the case. as its now full and it still isn't working. Its not the end of the world that it doesn't work just a bit of a bugbear Quote Link to comment Share on other sites More sharing options...
Bulk Posted May 3, 2015 Share Posted May 3, 2015 Ive had a 1.6 ecoboost titanium x since beginning of January and I have only seen stop/start 4 or 5 times and they were all back to back after a relatively long drive. My usual commute is around 10 miles and takes 15 to 20 minutes with the outward journey being in darkness and the heaters and screen heaters usually on quite high for half that journey. From what I have heard and what I have seen, the stop/start system is quite fussy/strict about when it kicks in. Quote Link to comment Share on other sites More sharing options...
DBLOOM Posted May 3, 2015 Author Share Posted May 3, 2015 yeah I've seen quite a few things about it being fussy. It used to work perfectly and then it just stopped. You would have thought with a fully charged battery it would have worked this morning though, especially with me not having any other instruments working (A/C, heaters etc) Quote Link to comment Share on other sites More sharing options...
Jollyandy Posted May 3, 2015 Share Posted May 3, 2015 Looks like it's been turned off via the OBD port, if you can't turn it back on using the switch; and, yes it's very battery voltage sensitive on the 1.6 ecoboost engine, a new battery solved mine. Sent from my iPhone using Ford OC Quote Link to comment Share on other sites More sharing options...
DBLOOM Posted May 3, 2015 Author Share Posted May 3, 2015 is there no home remedy that can cure it then? sounds like a phone call to the garage on tuesday then, unless anyone knows of a trick i can try? Quote Link to comment Share on other sites More sharing options...
Shennas Posted May 3, 2015 Share Posted May 3, 2015 IMHO turned off all the time is the best option, unless your car is station for large amounts of time. Its going to save .2 gal for every hour stationary assume the battery is charge the a/c is off etc etc. For me thats 14p a month being optimistic. It also hammers the battery so will shorten it's life. Quote Link to comment Share on other sites More sharing options...
artscot79 Posted May 4, 2015 Share Posted May 4, 2015 Google it fords stop start doesn't work on most fords with no answers as to why Quote Link to comment Share on other sites More sharing options...
iantt Posted May 4, 2015 Share Posted May 4, 2015 You can try resetting the battery monitoring now you have charged battery. It sorted another members car out after months of not working and told battery faulty. Cant remember sequence off hand but give me a few mins and I will check my old posts about it. Quote Link to comment Share on other sites More sharing options...
iantt Posted May 4, 2015 Share Posted May 4, 2015 Ign on for 10 secspress rear foglamp switch 5 timespress hazard switch 3 timeswait up to 10 secs while watching battery lightbattery light flashesign off. it may or may not fix your problem,worth a go though 1 Quote Link to comment Share on other sites More sharing options...
madmole Posted May 4, 2015 Share Posted May 4, 2015 Also check the switch itself. If its lit then the start/stop is off and will never happen Quote Link to comment Share on other sites More sharing options...
DBLOOM Posted May 4, 2015 Author Share Posted May 4, 2015 The light does become illuminated about 5 secs after i turn the car on and then won't let me turn it off to enable the stop/start. The button itself is fine so there is obviously an underlying reason. I have just tried the sequence ian and the battery light did flash so will see what happens now (fingers crossed) Quote Link to comment Share on other sites More sharing options...
james_60 Posted May 31, 2015 Share Posted May 31, 2015 Did you get it sorted My car is now having this fault Jamie Quote Link to comment Share on other sites More sharing options...
iantt Posted May 31, 2015 Share Posted May 31, 2015 Would be good to know if he sorted it. 1 Quote Link to comment Share on other sites More sharing options...
Lee cookson Posted October 26, 2016 Share Posted October 26, 2016 (edited) Hi. I've just joined the group and I've had a Ford Focus 1.6 tdci econetic for a month and the stop start technology has stopped. It has 48000 on the clock. Will it have to go into the garage to get this sorted? I've seen people go on about the battery is this an issue with this car? I've never had this before is it just with newer cars as I've only owned older models. Edited October 26, 2016 by Lee cookson Missed text out Quote Link to comment Share on other sites More sharing options...
mikeyd1 Posted October 26, 2016 Share Posted October 26, 2016 I wish i could turn mine off perminanty i hate the poxy thing Quote Link to comment Share on other sites More sharing options...
iantt Posted October 26, 2016 Share Posted October 26, 2016 you can with an elm and foccuus software, ah i just see you have a 2015 model, not sure if foccuus software works on the later focus. 1 Quote Link to comment Share on other sites More sharing options...
Stoney871 Posted October 26, 2016 Share Posted October 26, 2016 Yes it does. I've used it on my 2015 ST3. Sent from my SM-G930F 1 Quote Link to comment Share on other sites More sharing options...
mikeyd1 Posted October 26, 2016 Share Posted October 26, 2016 1 hour ago, iantt said: you can with an elm and foccuus software, ah i just see you have a 2015 model, not sure if foccuus software works on the later focus. Whats needed forscan and elm lead??? Quote Link to comment Share on other sites More sharing options...
iantt Posted October 26, 2016 Share Posted October 26, 2016 foccuus software, russian software so you can modify the body control module sure someone can put a link up. i will tommorow if i remember. can be switched off as i did for a short while just to see if it could be done 2 Quote Link to comment Share on other sites More sharing options...
mikeyd1 Posted October 26, 2016 Share Posted October 26, 2016 1 minute ago, iantt said: foccuus software, russian software so you can modify the body control module sure someone can put a link up. i will tommorow if i remember. can be switched off as i did for a short while just to see if it could be done Sweet mate Quote Link to comment Share on other sites More sharing options...
iantt Posted October 27, 2016 Share Posted October 27, 2016 http://ford.xtlt.ru 1 Quote Link to comment Share on other sites More sharing options...
Derek Belli Posted March 27, 2021 Share Posted March 27, 2021 Appears to be a frustrating problem we ford owners have to suffer, I purchased a focus 2019 vignale estate, went back to my local dealer 4 times total of 19 days fitted new batteries, battery monitor sensors updates, but the problem would not go away, eventually i sold the car assumed i was unlucky and had a rogue car. I purchased another a 2020 focus estate vignale just 1350 miles, i have the same problem with this one, It went back to ford, Diagnostic said problem with Battery monitor sensor. New sensor fitted, latest update, They did fully charge the battery checked myself 12.69 volts, worked just six times on the way home, the car was then parked overnight, next morning battery check 12.26volts the stop start has has not worked since. If you check your battery voltage you will find in the morning you will have a low charge, even if you fully charge your battery, (the stop start will work then) the next morning, low battery voltage no stop start, its has if there is a parasitic drain. Very frustrating . I have turned off my wifi connection, don`t update using wifi anything i can to help the battery but nothing seems to work, have no idea how to help you guys, I don`t think ford have either. Quote Link to comment Share on other sites More sharing options...
Alex.S Posted March 27, 2021 Share Posted March 27, 2021 I’m surprised Ford haven’t found what the problem is especially as so many owners have this issue. I keep auto updates on and have signal connection outside my house. My S/S , apart from a couple of months a year ago , has worked pretty much every time since . 69 plate. You’d think if say half the focus mk4 SS doesn’t work but other half does they’d figure out the difference. Lot of owners don’t like SS , I think it’s better in the auto than manual. Quote Link to comment Share on other sites More sharing options...
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