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

[mikeamick]

Yeah, title says it all. Have looked pretty hard and lots on the BCM but I want to be careful when taking it out and would love to follow proper procedures.

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[airline tech]

Are you Replacing the BCM or just removing and reinstalling?

There is a lot of programming involved and if you do not have a scan tool capable of reprogramming it (mainly the FOBS) you will have a truck that will not start.
Plus, if installing a used BCM may complicate things as it will have the (off truck) Fobs in memory, as well as the As-Built Data - Note: There are some lines that are VIN # Specific that MUST be changed.

I know you can load (reenter) the As-Built to the BCM with Forscan, but I think you will hit a wall with programming the FOBs with Forscan and you will be locked out from starting due to the PAT's not seeing a valid programmed FOB, you must have both FOBs present or it will never accept them.

Just a forewarn before you proceed.

Ref: This thread for a No-Start Issue

BCM RANGER 2021 2.3 PROBLEM | 2019+ Ford Ranger and Raptor Forum (5th Generation) - Ranger5G.com

 

[airline tech]

I just realized you are the one with the Foxwell, Can it Re-Program Keys?
Do you have Forscan to Re-Program the BCM & PAM (Reload the As-Built Files)?

Ensure you have the Scan Tool Functionality to do this before REPLACING or you will end up bricked and require a tow to the dealer.
As I said there is a lot of programming involved if (REPLACING)

Note: PMI is the Scan Tool - Downloading the As-Built Data from the old BCM and reinstalling it to the New BCM, however this can be done with Forscan but it will have to be done manually.
If installing a Used BCM - most of the data will be the same, but the off-truck VIN# will be locked into it and MUST be changed to your VIN#
So, you need to download and record the BCM & PAM - As-Built data as the PAM is integrated with the BCM, the remaining modules communicate with the BCM via Can Bus

 

[mikeamick]

I just realized you are the one with the Foxwell, Can it Re-Program Keys?
Do you have Forscan to Re-Program the BCM & PAM (Reload the As-Built Files)?

Ensure you have the Scan Tool Functionality to do this before REPLACING or you will end up bricked and require a tow to the dealer.
As I said there is a lot of programming involved if (REPLACING)

Note: PMI is the Scan Tool - Downloading the As-Built Data from the old BCM and reinstalling it to the New BCM, however this can be done with Forscan but it will have to be done manually.
If installing a Used BCM - most of the data will be the same, but the off-truck VIN# will be locked into it and MUST be changed to your VIN#
So, you need to download and record the BCM & PAM - As-Built data as the PAM is integrated with the BCM, the remaining modules communicate with the BCM via Can Bus

 

[mikeamick]

Thank you so much, Airline tech

Exactly what I needed. I read many articles about the complications but no one
showed the removal process.

My Foxwell says if can do keys for vehicles with IMMO? so not sure.
It also says it can reprogram replaced modules

I have to go a little further down the rabbit hole for the As-Built data.

Quick question, what about the places on the internet that will CLONE your
old board to the new one. Would this take care of the key issue ?

 

[airline tech]

Since I have not dove into using the IMMO, deeply. I know I can add FOBs with it. But a full replacement (relearn) IDK, as I have never needed to do it.
As the PAT's is not part of the As-Built data files (cloning) may not work as I think all they are doing is just copying and reloading the As-Built data to the new unit.

The Pat's - Validation between the BCM - PAT's & PCM is done via the Can Bus Network
So, for the IMMO, you may want to tab into that module and see if it looks like you can reprogram new keys (not just add keys)

 

[mikeamick]

I appreciate all the info Airline Tech even if a bit over my head. But you did clear a lot of stuff
up for me.

I read some claims from the cloning people and they say that it's a one stepper, nothing else
needed. Keys and all. It's even in the BIG print, lol. But seriously, I will buy a used bcm for $130
then have it cloned for $130 and call it an experiment. I'd be horrified to hear a quote from
the ford dealer.

 

[RangerBill]

I appreciate all the info Airline Tech even if a bit over my head. But you did clear a lot of stuff
up for me.

I read some claims from the cloning people and they say that it's a one stepper, nothing else
needed. Keys and all. It's even in the BIG print, lol. But seriously, I will buy a used bcm for $130
then have it cloned for $130 and call it an experiment. I'd be horrified to hear a quote from
the ford dealer.

What happened to the BCM in your truck?

 

[5thranger]

What happened to the BCM in your truck?

I will tell you what all the BCM, PCM, PAT, and then FOB talk makes me say OMG and WTF!!!!

 

[RangerBill]

I will tell you what all the BCM, PCM, PAT, and then FOB talk makes me

Body Control Module (BCM), Contains the fuses under the driver's side dash along with electronic controls.

 

[mikeamick]

What happened to the BCM in your truck?

The other day I was driving and came to a stop. All the dash lights came on and complained
about everything from collision avoidance to backup aid. Anyways it wouldn't start
or even come out of drive. With a line of cars behind me, I might add. So I jumped out '
and pulled one of the battery terminals off then back on and it started.

My scanner says bcm fault

Not to mention some quirky electrical activity, like i was trying to drive up a tiny little bank
and the dash freaked out with a hill climbing error. A dead battery another time.

 

[airline tech]

Any specific code? I would not condem the BCM yet as I suspect a possible power issue to the BCM.

 

[ctechbob]

Any specific code? I would not condem the BCM yet as I suspect a possible power issue to the BCM.

What he said. There's a whole lot of troubleshooting that needs to go on before you start up the parts cannon.

Something as simple as a loose body ground, or a wire rub-through will cause issues like you describe. You've got to eliminate those kinds of things before you start going through the trouble of replacing parts and potentially causing more problems.

 

[mikeamick]

What he said. There's a whole lot of troubleshooting that needs to go on before you start up the parts cannon.

Something as simple as a loose body ground, or a wire rub-through will cause issues like you describe. You've got to eliminate those kinds of things before you start going through the trouble of replacing parts and potentially causing more problems.

Dog gonnit ... I do have to admit that I AM able to drive the truck and that all the error msgs
are intermittent and not continuous. But the scanner Always shows the bcm bad, it lets me
reset it but comes back immediately.

I did buy the truck with a salvage title so it was smacked pretty hard on one front corner so
a rub through or pinch is understandable.

It did stop the auto shut down and start up at stops a few weeks ago.

And even though I am comfortable with electronics I would have no idea where to start looking.

I haven't pulled the module yet ...

Mike

 

[airline tech]

what is the specific code it shows?
I am looking for Internal Error code.

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