Battery Size Stored in Fusion BCM

Any issues related to FORScan application
DanMc85
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Battery Size Stored in Fusion BCM

Post by DanMc85 » Wed Jul 27, 2016 4:28 pm

Does anyone happen to know which line in the BCM which contains the bits that stores the battery size? Curious for proper charging purposes and BMS working right as I put a larger Motorcraft AGM battery in my fusion
I have a couple possibilities in mind, but wasn't sure if someone already knows the answer.

2014 Fusion, but I know the BCM programming is the same on most of the 2015 F150s and 2016 Explorer.
Last edited by DanMc85 on Fri Jul 29, 2016 2:57 pm, edited 1 time in total.

stimpy88
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Re: Battery Size stored in BCM

Post by stimpy88 » Fri Jul 29, 2016 1:44 pm

I wish I could help you, but I have tried playing with this setting on my Mondeo, and have tried a few different settings, and the car still undercharges the battery...

I live in hope that ForScan will one day support Configuration changes on the Mondeos from 2007 up, as maybe the setting did not work due to the program I used to edit the AsBuilt data.

DanMc85
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Re: Battery Size stored in BCM

Post by DanMc85 » Fri Jul 29, 2016 1:49 pm

stimpy88 wrote:I wish I could help you, but I have tried playing with this setting on my Mondeo, and have tried a few different settings, and the car still undercharges the battery...
I actually figured this out yesterday, so I will share...

Figured out how to tell the cars computer / battery monitoring system you have a different type/size battery... for example I had a regular battery and changed to a 70Ah AGM battery. So I changed my value below from 12 to 01.
Example: Changed 726-04-01 1202 001E 095C to 0102 001E 095C

Memory Address
726-04-01 - First Box = Battery Type
(on older vehicles, this 726-04-01 block contained the code for the drivers door keypad lock, but not anymore)

First byte is battery type.
Second byte appears to enable/disable battery monitoring system... 01 Off, 02 On - All Battery Monitoring System PID's go blank when this is changed to 01. So I am assuming it turns it off.

Some example options that work in the Fusion, I am sure there are probably more choices:
- Confirmed by reading/monitoring BdyCM battery PID's, in a table in FORScan, after making each individual change.

These CCA numbers are rounded/rough approximates... go by the Ah.
0102 - AGM 70Ah 600CCA H6 Case - Default (with Start/Stop Engine)
0202 - AGM 80Ah 700CCA H7 Case
0002 - AGM 80Ah 700CCA T7 Case
1202 - Regular/Varta 60Ah 600CCA H5 Case - Default (SE/Titanium with Push to Start)
1502 - Regular/Varta 90Ah 800CCA H8 Case
1002 - Regular/Varta 80Ah 700CCA T7 Case
1102 - Regular/Varta 90Ah 800CCA T8 Case

^ the 02 is the BMS enabled (I believe, 01 for disabled)

This is on a 2014 Fusion CD391 (3FA6P0D92)... I assume it works on 2014-2016, the BCM programming on the 2013 is different/older so I am unsure if this line is the same.
Last edited by DanMc85 on Fri Jul 29, 2016 2:45 pm, edited 1 time in total.

DanMc85
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Re: Battery Size stored in BCM

Post by DanMc85 » Fri Jul 29, 2016 2:43 pm

While on the topic of power... I also confirmed this works in the Fusion.

Change the length of time for the power point / cigarette lighter socket power time out or disable the time out altogether.

Great for leaving a phone or similar charging in the car. Or if you tapped the socket for power for a gauge pod or similar.

Example:
726-39-01: 1194 0101 000E (Some cars may not have 0100, but instead have 0101 in the middle. I speculate that this 01 at the end of the middle field may be for the AC Power Inverter, if equipped)

First box is the hexadecimal representation of seconds.

1194 = Default (1 Hour 15 Minutes)
5460 = 6 Hours
A8C0 = 12 Hours
FD20 = 18 Hours
FFFF = 18 Hours, 12 Minutes, 15 Seconds (Max Time Available WITHOUT Disabling Time Limit)

OR

The second box in the 726-39-01 memory block starts with 01 for the first byte. Change it to 00 and the power point stays on forever.

Note this code is 2014+ only, 2013 may have it also but I don't have a 2013 Fusion to test with... it appears the same code is located in memory block: 726-53-01 on a 2013.

orlandson
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Re: Battery Size Stored in Fusion BCM

Post by orlandson » Sat Mar 23, 2019 2:38 am

Follow my finds by reading/monitoring BdyCM battery PID's, in a table in FORScan, after making each individual battery type change.

05 = error
06 = error
07 = Varta 43Ah 390CCA T4 Case
08 = Varta 52Ah 500CCA T5 Case
09 = Varta 60Ah 590CCA T6 Case
10 = Varta 90Ah 950CCA H8 Case
11 = Exide 43Ah 390CCA T4 Case
12 = Exide 52Ah 500CCM T5 Case
13 = Exide 60Ah 590CCA T6 Case
14 = Exide 80Ah 70CCA T7 Case (maybe 700CCA?)
15 = Exide 90 Ah 800CCA T8 Case
16 = Exide 60Ah 520CCA H5 Case
17 = Exide 70Ah 600CCA H6 Case
18 = Exide 80Ah 700CCA H7 Case
19 = Exide 90Ah 800CCA H8 Case
20 = error

MY 2015 2.0 Ecoboost Fusion Titanium AWD

akshay
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Re: Battery Size Stored in Fusion BCM

Post by akshay » Sun Oct 18, 2020 11:54 pm

Hello, I’m trying to tell the BCM to use the appropriate battery size. I changed to a sealed flooded type H6 battery with 70ah, 730 CCA. What would be the best option to select in my case? Also, I am new to changes done through Forscan. If I change this setting are there any other things that I have to be careful about? Will this just reset my BCM? Will I have to enable it? I have a 2016 fusion 2L. Thanks.

hall
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Re: Battery Size Stored in Fusion BCM

Post by hall » Sun Oct 25, 2020 2:29 am

akshay wrote:
Sun Oct 18, 2020 11:54 pm
Hello, I’m trying to tell the BCM to use the appropriate battery size. I changed to a sealed flooded type H6 battery with 70ah, 730 CCA. What would be the best option to select in my case?
As you can see, the numbers are sequential so there's not really any missing values. That means you just have to pick the closest listed. I think I'd match the Ah rating.

akshay
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Re: Battery Size Stored in Fusion BCM

Post by akshay » Sun Oct 25, 2020 2:33 am

Thanks!

Hemi78
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Re: Battery Size Stored in Fusion BCM

Post by Hemi78 » Tue Oct 27, 2020 7:28 pm

I have an EFB 75Ah 700A Varta battery (orginal) in my car.
The car was made on 05/2017

AS-build says says about battery
726-04-01 1501-0000-0951
15 -> Regular / Varta 90Ah 800CCA H8 Case
01 -> Battery monitoring system off

I have owned the car for about 2 months now. The Star-Stop system has never worked. The gray A start stop image sometimes appears on the instrument panel when you stop at traffic lights.

After driving 300km one distance, the start - stop system still doesn't work!

If the car is parked for three to four days in the Park and you go to the car then the sync 3 screen will come almost immediately:
Battery Saver - System Off Please turn ignition off or start the engine

Anyway, it feels like the car is starting lazily.
The auxiliary heater does not start until the car has been running for a while (low battery message appears)

Shouldn't I change that line to 1501-0000-0951 -> 1802-0000-0955 so it would be closer to the battery that's stuck in the car and the battery would charge better?
And BMS on. And the reset procedure BMS?
It feels like the car isn’t fully charging the battery now at all.

The battery should last longer than 2.5 years!

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fordsmax471
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Re: Battery Size Stored in Fusion BCM

Post by fordsmax471 » Tue Oct 27, 2020 7:41 pm

is right ;)
726-04-01 0101 xxxx xxxx

if you have a battery 75Ah 700 EFB then select max - 80Ah/700cca/T7 Case
if you choose Varta 90Ah, 800cca, H8 then the battery is charged with too much amp

Ah-- is actually determining how the generator charges the battery
if you select too much Ah, the battery may boiling when the charging

if you choose Varta 90Ah, 800cca, H8 the car has information that the battery 75Ah 730 EFB is empty, the difference is still 15Ah

for example windscreen defrost and start -stop not working when battery level is below low

Caution!

Battery age in days can't be changed back !

if you change the battery type of old battery, the battery life time goes automatically 0 day
so BCM---BMS understands that the new battery and generator charging have changed min amps.
ELS27v4/UCDSv4/ElitebookG6/Win10pro

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