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Old 06-09-2017, 11:45 PM   #11
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I see what you did there

lol.
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Old 06-10-2017, 02:56 AM   #12
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Quote:
Originally Posted by saintsfins View Post
My OEM battery died a couple of days ago, so I got a new one at Advance Auto. I've read that the BMS resets itself if the car is left alone for 8+ hours, which mine has been for the last two nights. Can I assume that the BMS was automatically reset? Car starts/runs fine. No warning lights on the dash.

Is there any indication that it wasn't reset, like the batt light coming on?
This is correct.

Hello from Germany
My English is not so good. My german is much better.

You can not actually recognize from the outside whether BMS is reset.

Important is that you have a battery of the same type and performance installed. If an EFB battery was previously installed, an EFB (Enhanced Flooded Battery) must be installed again. Never install a lead acid battery.
Alternatively you can use a AGM battery.
If you have a battery sensor on negative pole, you have a smart charge charging system. (Intteligent load system)
This smart charge charging system charges with 14.8 volts load voltage. Lead acid batteries are charged with 14.6 volts.
The smart charge charging system from the ford focus mk3 (with Start/Stop system) overcharge a lead acid battery. Battery is broken in a short time.

Look at your car battery negative pole. Do you have a BMS (Battery Monitor Sensor)?
Only cars (Ford) with Start/Stop System have a EFB battery (Enhanced Flooded Battery) and a BMS.
All others (old Ford's) have normal lead-acid batteries in it. Lead batteries do not have a BMS.

For a reset of the BMS:
1. Switch on ignition (do not start engine)
2. Switch on dipped beam
3. Press 5x the rear fog light button (do not switch 5x on and off the rear fog light)
4. Press 3x hazard lights button (do not switch 3x on and off hazard lights)
5. Then the battery symbol in the speedometer should flash 3x quickly.
If it does not flash immediately, wait 20 seconds.
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Last edited by Bud Bundy; 06-10-2017 at 09:10 AM.
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Old 06-10-2017, 03:02 AM   #13
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Quote:
Originally Posted by Bud Bundy View Post
Hello from Germany

Look at your car battery negative pole. Do you have a BMS (Battery Monitor Sensor)?
Only cars with Start/Stop system (in Europe) have an EFB battery (Enhanced Flooded Battery) and a BMS.
All others have normal lead-acid batteries in it. Lead batteries do not have a BMS.

For a reset of the BMS:
1. Switch on ignition (do not start engine)
2. Switch on dipped beam
3. Press 5x the rear fog light button (do not switch 5x on and off the rear fog light)
4. Press 3x key hazard lights (do not switch 3x on and off hazard lights)
5. Then the battery icon in the speedometer should flash 3x quickly.
If it does not flash immediately, wait 20 seconds.
I have a US SE without start/stop and mine has a BMS and can be reset. not sure about this method though seeing as US versions don't have a rear fog light switch. maybe you mean defroster?

sure fire way is to do it with forscan service procedure "reset battery monitor system" and follow on-screen prompts.
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Old 06-10-2017, 03:30 AM   #14
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Alternatively you can disconnect (positive and negative pole) car battery over night.
This also resets BMS.

This method resets several modules to Manufacturers Status.
Door Control Unit (DCU) (if you have (re-learn Windows lifter)),
Engine Control Modul (ECM) (re-learn (drive)).
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Last edited by Bud Bundy; 06-10-2017 at 03:42 AM.
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Old 06-10-2017, 08:41 AM   #15
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Thanks for the info.
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Last edited by saintsfins; 06-10-2017 at 09:19 AM.
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Old 06-10-2017, 10:40 AM   #16
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Quote:
Originally Posted by stayboogy View Post
I see what you did there

lol.
I was being serious lol. What is that program?

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Old 06-10-2017, 01:46 PM   #17
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Quote:
Originally Posted by Jburks View Post
I was being serious lol. What is that program?

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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
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Old 06-10-2017, 03:38 PM   #18
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Quote:
Originally Posted by Jburks View Post
I was being serious lol. What is that program?

Sent from my SM-G920T using FF Mobile
I seriously thought you were screwing with me lol

Download FORScan

how to get extended license: FORScan forum ? View topic - Standard and Extended licenses for Windows

you must have an extended license to be able to do any module configuration changes to central config like focccus does

i think you can reset modules in the services procedures tab without one, but an extended license is fast and free and opens so many doors you might as well get one

as far as adapters go, save your money and time and get the obdlink mx bluetooth. don't waste your money on the wifi version it doesn't work so well.

I have used an original elm once before but it is limited in use because it cannot access ms-can

the obdlink mx is well worth the $80
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Old 06-11-2017, 01:00 PM   #19
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i put anew battery in a few weeks ago didnt reset battery module voltage showed up to 14.5v 130 amp on torques pids , last night i reset battery module with forscan program and laptop and usb elm 327 now volts tops at 13.7 v amps about 60 a
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Old 06-11-2017, 05:22 PM   #20
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Quote:
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i put anew battery in a few weeks ago didnt reset battery module voltage showed up to 14.5v 130 amp on torques pids , last night i reset battery module with forscan program and laptop and usb elm 327 now volts tops at 13.7 v amps about 60 a
resetting the sensor definitely hasn't changed anything about your battery's health or power,

and those values will change based on what accessories are running in the vehicle, whether moving or stationary, how long the vehicle has been running, etc.

all the sensor does is through the BCM calculate the needed charge for the system to power everything that is running. the system is probably requiring less power because now the new battery is operating at an optimal level for the system instead of having to operate at higher volts to do the same things with an older discharging battery.
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