Can not find instruction on how to remove BCM on 2020 ranger

[mikeamick]

Ok, the pictures you posted cleared up a lot.

You may be right about the BMS.

I took a pic before exploring and now that I know what the BMS is, notice in the first pic
that the bms has the connector plugged in.

Then after unplugging everything from the BJB I notices that the plug to the BMS had come
off. The plug has a lock clip on it and I don't think it would just come off by bumping it. So
maybe it wasn't clicked on all the way.

The BJB's casing is cracked. It looks like the battery was pushed back into it. But the modules
that the massive plugs plug into look fine.

Anyways, after buttoning everything up and making sure the BMS clip snapped tight, I started
it up and checked the codes. LOTS of them, several diff modules. But after clearing them, none
came back.

I can only hope.

Mike

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[RangerBill]

Ok, the pictures you posted cleared up a lot.

You may be right about the BMS.

I took a pic before exploring and now that I know what the BMS is, notice in the first pic
that the bms has the connector plugged in.

Then after unplugging everything from the BJB I notices that the plug to the BMS had come
off. The plug has a lock clip on it and I don't think it would just come off by bumping it. So
maybe it wasn't clicked on all the way.

The BJB's casing is cracked. It looks like the battery was pushed back into it. But the modules
that the massive plugs plug into look fine.

Anyways, after buttoning everything up and making sure the BMS clip snapped tight, I started
it up and checked the codes. LOTS of them, several diff modules. But after clearing them, none
came back.

I can only hope.

Mike

In your first picture above, the negative battery clamp is not installed in the correct position. It is rotated causing the BMS connector to be jammed against the BJB. The BMS sensor long edge should be parallel to the BJB front edge. The battery terminal clamp needs to be rotated counterclockwise as well.

 

[airline tech]

Yes - Rotate the BMS Sensor, so it's not hitting the BJB, and depending on how bad the BJB is cracked, might be the source of your (stall) issue.
I would recommend at the very least getting some sealant (RTV) Flex Tape or similar to repair seal the crack from monture intrusion. This is not an old school fuse box. it is a circuit board (PCB), and moisture intrusion can short the board.
If you continue to have issues - you can find a BJB on Ebay fairly cheap and just replace it as a precautionary maintenance action.
I would also check to ensure ALL of the Left side (inner Wheel Well) covers are installed, as those will help keep rainwater being thrown up on the BJB and related areas by the tire.

Since you have addressed the BMS and Headlamp codes, we still need to confirm that the main issue (stalling) has been addressed, and if it does it again or issues remain - Replace the BJB vs replacing the BCM.

 

[mikeamick]

Roger on the Rotate.

And I do see the BJB's on ebay.
Can't help but to think that would be a good idea.

Really appreciate the help.

I'll keep you updated.

Mike

 

[Rubsranger]

Ok, I'll look today.

Hello, 2021 Ranger STX 2WD I'm new at this, so I'm hoping I'm in the right area. I was having issues not being able to start my Ranger from my phone using the app . It would say it was in battery saver mode ,for me to just drive the truck. I would and I would keep getting the same message in the app and not able to use any remote features. I thought it was because I added a dash cam and an android auto screen for maps and music. I bought a cigarette lighter multi adapter and thought that was the issue. I found a resolution! From@FordBossMe on youtube.
*Turn key or push start to on
*Flash brights 5 times
*Press brake 3 times
*The battery light will flash
*Turn truck off
That's it! It will reset the battery saver mode. Hope this helps some of you with the same issue.

 

[RangerBill]

Hello, 2021 Ranger STX 2WD I'm new at this, so I'm hoping I'm in the right area. I was having issues not being able to start my Ranger from my phone using the app . It would say it was in battery saver mode ,for me to just drive the truck. I would and I would keep getting the same message in the app and not able to use any remote features. I thought it was because I added a dash cam and an android auto screen for maps and music. I bought a cigarette lighter multi adapter and thought that was the issue. I found a resolution! From@FordBossMe on youtube.
*Turn key or push start to on
*Flash brights 5 times
*Press brake 3 times
*The battery light will flash
*Turn truck off
That's it! It will reset the battery saver mode. Hope this helps some of you with the same issue.

This procedure is for after replacing the battery to reset the BMS (battery management system) to tell it a new battery has been installed. You shouldn't do that procedure unless a new battery was installed. What you should have done is to have the battery tested and if good, charge it with a battery charger.

Resetting the BMS without replacing the battery is only delaying the inevitable, a new battery replacement.

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