CSP-23B70 Certain 2022-23 F-150 Lightnings - BMS Sensor Replacement

[VTRedWingsFan]

Service advisor called me this morning. When the part comes in, they are going to do this via mobile service ! Finally getting with the times up here !

Sponsored

 

[THX1138]

FYI: Just had campaign 23B70 work completed. Below are the before and after pics of the part.

 

[Lytning]

LVB SOC has been maintained better since the new part install.

This is from early this morning before I refreshed the truck at 07:12

Then remote started the truck at 07:30 to begin a 30 minute warm up grid energy draw test.
LVB at 07:42

LVB at 07:50

LVB at 07:55

LVB at 10:00 after a short round of errands of 3 key cycles.

If I drive a longer period of time or a long charging session this will get higher into 80 & 90"s

Since the BMS replacement I have taken two ~20 mile errand trips. I found LV SOC at 91% and 90% after trip completion. I have never seen LV SOC that high before. The new BMS is definitely resulting in better LV charging and higher SOC.

 

[Maxx]

Since the BMS replacement I have taken two ~20 mile errand trips. I found LV SOC at 91% and 90% after trip completion. I have never seen LV SOC that high before. The new BMS is definitely resulting in better LV charging and higher SOC.

Let us know if you get more software updates because of this. Mine has not been replaced yet and does not go over 70%. When I left the truck on, it stopped charging LVB at 70%. I have been missing a bunch of updates. I wonder if one of their OTA improvements is looking at your LVB SOC before telling you update is available.


I am not sure if my 70% is really 100% or it is just 70%.

 

[carys98]

I took my truck on a 500 mile round trip last weekend and actually saw my 12V go over 90% for the first time in a while. Got home Tuesday and the dealer picked my truck up on Wednesday and installed the new sensor. When I got it back it was at 50%. I plugged it in but limited it to 16A so it took over 5 hours to get the HVB back to 80% but the 12V only went to 51%. I‘ve got a couple of 30 minute trips to make in the next two days so I’ll see where things are after that.

 

[TaxmanHog]

Let us know if you get more software updates because of this.

I think we're still in a OTA pause at the moment, there has not been much chatter on the various OTA threads, I'm waiting for 6.13 to drop.

 

[Maxx]

I think we're still in a OTA pause at the moment, there has not been much chatter on the various OTA threads, I'm waiting for 6.13 to drop.

6.4 was my last one. I still don’t have the SOC number on display. Not sure it was an earlier update I missed or after 6.4. As long as everything runs and I am not stranded, it is all good.

 

[carys98]

I think we're still in a OTA pause at the moment, there has not been much chatter on the various OTA threads, I'm waiting for 6.13 to drop.

Did you do yours yourself? I started thinking that maybe Ford wouldn’t add VINs to the list until they had the update. You might want to ping some of the more knowledgeable members to see if you can report the update or if there is any reason to.

 

[TaxmanHog]

Did you do yours yourself? I started thinking that maybe Ford wouldn’t add VINs to the list until they had the update. You might want to ping some of the more knowledgeable members to see if you can report the update or if there is any reason to.

Yes I did it myself, I considered asking one of our resident experts with access, but also don't have a concern waiting for the next tire rotation, I'll let them validate that it's done and drop me off the hit list.

 

[bmwhitetx]

Did you do yours yourself? I started thinking that maybe Ford wouldn’t add VINs to the list until they had the update. You might want to ping some of the more knowledgeable members to see if you can report the update or if there is any reason to.

I had my BMS sensor replaced by dealer 8 days ago and it's still in my CSP list. Same with BECM module - updated 12/8/23 and still in CSP list. The dash mat CSP did drop off the list at some point though. I've read that the BECM CSP may stay on there a while though.

 

[carys98]

I took my truck on a 500 mile round trip last weekend and actually saw my 12V go over 90% for the first time in a while. Got home Tuesday and the dealer picked my truck up on Wednesday and installed the new sensor. When I got it back it was at 50%. I plugged it in but limited it to 16A so it took over 5 hours to get the HVB back to 80% but the 12V only went to 51%. I‘ve got a couple of 30 minute trips to make in the next two days so I’ll see where things are after that.

I went to a basketball game about 20 miles from home last night. After I got home and the HVB finished charging back to 80% my 12V was at 92%. It’s been sitting in the garage now for about 15 hours and it’s currently at 87%. Before I got the BMS replaced I had only been able to get my 12V above 90% maybe 4 times and it usually took more than an hour of driving. It would then drop back into the 60’s within a couple of hours of parking it. Hopefully this has fixed the problem.

 

[LUXMAN]

Mobile service came out. Just did both our trucks and done in 10 minutes

I noticed the part number was slightly different than the paperwork. But the box, that’s a part came in matches exactly. And he said that just has to do with the chipset inside, possibly.

 

[Jseis]

In another thread on this forum I deduced and Ford confirmed that my BMS is/has been failing. Of note is that I commute an hour a day morning and evening. The LVB issue showed up with Ford Pass error messages about two weeks ago where my work site air temps dropped into the 20’s F.

After a few dash and FP error messages I plugged my Veepeak OBD into the port and discovered that after sitting 9+ hours at work, the LVB SOC would drop significantly from 100-99% w/greatest at 56%. However, it always charged back to 99-100% on the drive home. And it is plugged in all night with charging occurring from 8 pm to about 1:30 am to replenish the 30-45 KWh I burn every day. I also precondition in the morning (typically starts at 5:45 am for 6:30 am departure. Thus my use style keeps the LVB charged other than during the daytime sitting at work.

I’ll try the BMS reset to see if that is a short cure (doubt it). The downside of this is not a single OTA has appeared since the June ‘23 purchase date/post a major update at the dealer in July.

PS, the Veepeak says the LVB charges at 14.35-14.65 volts when charging up from a low (I.e., 56-78% SOC)

FYI, this forum has been valuable for understanding these type of issues, TSBs, recalls. Etc.

 

[WhipSticks]

I got both the LV-BMS and the BECM software updates done today. It took about 90 mins for the pair of them.

 

[starrtech2000]

So I ordered part ml3z10c679b from Tasca parts and as others have reported, the part that is in the box labeled that has a different part number because Ford... Mine says ml3t-10c652-ba.

I'm installing it and hoping for the best...

Sponsored