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-   -   Battery change and BMS reset? (https://www.focusfanatics.com/forum/mk3-focus/752153-battery-change-bms-reset.html)

Garland15949 06-11-2017 07:06 PM

i was wrong. after more run time today it peaked at 14.5 volts 110 amps. i definately can see the smart charging working seems to charge more going down hills or when you lift off the gas pedal

Bud Bundy 06-12-2017 07:00 AM

Quote:

Originally Posted by Garland15949 (Post 10787889)
i was wrong. after more run time today it peaked at 14.5 volts 110 amps. i definately can see the smart charging working seems to charge more going down hills or when you lift off the gas pedal

This is correct and normal.

If you "going down hills or when you lift off the gas pedal" the charging voltage goes up to 15.0 Volts.

In lead-acid's batteries (no Smart Charge System), the charging voltage remains continuously at 14.4 volts.

saintsfins 06-17-2017 09:13 AM

Got it done yesterday with FORSCAN and my new OBD2 cable. You don't need the extended license for the BMS reset. Just download it and go.

RonMaiden 06-17-2017 02:42 PM

Hmmm,battery died a few months ago with zero warning right in front of a Taco Bell,got a jump start,drove to the parts store and installed a new one and no issues at all but I'll ask Ford when it gets it's next oil change.

saintsfins 06-17-2017 02:54 PM

Don't let them charge you a lot to do it. If you have a laptop, you'll just need a ~$30 cable. It takes < 10 mins.

iceflow 08-15-2017 03:47 PM

BMS Basic eduaction required
 
Quote:

Originally Posted by saintsfins (Post 10786521)
The program is FORSCAN. I downloaded it this morning. Search the forum and you should see links for it.

Then you need a OBD2 to USB cable to run it off your laptop. I just ordered this:

https://www.scantool.net/obdlink-sx/...Pl4hoCJR7w_wcB

Folks,
I’m considering changing the battery. So, help, guidance on the following would be appreciated:
FORSCAN – Will this reset the BMS on a 2015 Focus?
I have a laptop with Windows 7. What is the cost of the FORSCAN software?
And I also need this tool? - OBDLink SX Scan Tool. Do I need any of their add on software, I’m assuming the FORSCAN means nothing additional needed?

https://www.scantool.net/obdlink-sx/...Pl4hoCJR7w_wcB

What else is required….apart from a battery……ok…...got that.

Thanks!

spots 09-17-2017 12:21 PM

sorry for reviving this but will this cheap obd2 to usb cable work with the 2012 ford focus se to reset that stupid monitor and other things ? useing forscan ? link to ebay >>>>>>>>>> VAG-COM KKL 409.1 OBD2 USB Cable Scanner Scan Tool Audi VW SEAT Volkswagen Auto

stefcio007 09-18-2017 02:29 AM

Quote:

Originally Posted by spots (Post 10940761)
sorry for reviving this but will this cheap obd2 to usb cable work with the 2012 ford focus se to reset that stupid monitor and other things ? useing forscan ? link to ebay >>>>>>>>>> VAG-COM KKL 409.1 OBD2 USB Cable Scanner Scan Tool Audi VW SEAT Volkswagen Auto

No? I have this, they are specifically made for Volkswagen vehicles only.
Get a modified ELM tool that explicitly states it's been modified to suit Ford and the extra bus.

spots 09-18-2017 08:44 AM

what about the 30 dollar one linked above mine that works? https://www.scantool.net/obdlink-sx/...Pl4hoCJR7w_wcB

iceflow 09-19-2017 09:18 AM

Quote:

Originally Posted by spots (Post 10942105)
what about the 30 dollar one linked above mine that works? https://www.scantool.net/obdlink-sx/...Pl4hoCJR7w_wcB

OK, so I buy this and get Forscan downloaded and then I can reset the BMS? Is anything else required?

Thanks


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