Topic Sponsor
2015 - 2020 Ford F150 General discussion on the 13th generation Ford F150 truck.
Sponsored by:
Sponsored by: Worksport

Multiple faults, ABS module, BCM or?

Thread Tools
 
Search this Thread
 
Old Jun 18, 2025 | 04:25 PM
  #11  
KDR1's Avatar
Thread Starter
Junior Member
Liked
 
Joined: Jun 2025
Posts: 24
Likes: 5
Default

Originally Posted by phantom6294
I only have a 2020 so can't say 100% on a 2015 (but can't imagine Ford drastically changed the modules) but you can't perform the BMS reset because it's a part of the BCM, which isn't listed in your screenshot. This, combined with the issues you're having with the OBDLink adapter (which is one of the best) makes me wonder if you've got more serious problems than a bad battery; bad module(s) or the communication path(s) between modules.
Thank you for your response.

With the ABS code being the only consistent one from the PCM, my initial thought was something with the ABS being bad, which then caused all the other problems, but that didn't explain the dashboard comms not working, which then lead me to it being the BCM, but I'm still stumped.
Reply
Old Jun 18, 2025 | 05:06 PM
  #12  
52merc's Avatar
5 Year Member
5 Year Member
Community Builder
Liked
Loved
 
Joined: Nov 2018
Posts: 6,726
Likes: 3,947
From: Calgary, Alberta
Default

OP, your FORScan Service Procedures window should look like this.



When you originally connect FORScan to your vehicle, you get a window like this:

Selecting "No" forces FORScan to rescan for all the modules in your truck. The list should be 10 or more modules.

Your next window should look something like this where the list of "Found module:" at the bottom of this window should include all your truck's modules (could be 15 or more).


If you can get FORScan to find all your modules, then the BMS reset should show up in Service Procedures.

Hint: You can always capture a screen shot of the active window by selecting the "Alt" + "Prt Scr" keys. You can then save that picture so you can post in in the thread, like I have done above.

If you are not seeing all your modules in your connection log, post what you are seeing and this might help in the troubleshooting.
Reply
Old Jun 18, 2025 | 05:33 PM
  #13  
KDR1's Avatar
Thread Starter
Junior Member
Liked
 
Joined: Jun 2025
Posts: 24
Likes: 5
Default

Originally Posted by 52merc
OP, your FORScan Service Procedures window should look like this.



When you originally connect FORScan to your vehicle, you get a window like this:

Selecting "No" forces FORScan to rescan for all the modules in your truck. The list should be 10 or more modules.

Your next window should look something like this where the list of "Found module:" at the bottom of this window should include all your truck's modules (could be 15 or more).


If you can get FORScan to find all your modules, then the BMS reset should show up in Service Procedures.

Hint: You can always capture a screen shot of the active window by selecting the "Alt" + "Prt Scr" keys. You can then save that picture so you can post in in the thread, like I have done above.

If you are not seeing all your modules in your connection log, post what you are seeing and this might help in the troubleshooting.
Thank you for your response.

I will do all the above and post pics asap.
Reply
Old Jun 18, 2025 | 08:07 PM
  #14  
KDR1's Avatar
Thread Starter
Junior Member
Liked
 
Joined: Jun 2025
Posts: 24
Likes: 5
Default

Originally Posted by 52merc
OP, your FORScan Service Procedures window should look like this.



When you originally connect FORScan to your vehicle, you get a window like this:

Selecting "No" forces FORScan to rescan for all the modules in your truck. The list should be 10 or more modules.

Your next window should look something like this where the list of "Found module:" at the bottom of this window should include all your truck's modules (could be 15 or more).


If you can get FORScan to find all your modules, then the BMS reset should show up in Service Procedures.

Hint: You can always capture a screen shot of the active window by selecting the "Alt" + "Prt Scr" keys. You can then save that picture so you can post in in the thread, like I have done above.

If you are not seeing all your modules in your connection log, post what you are seeing and this might help in the troubleshooting.
I just finished following the above. I connected, selected 'no' and forced the rescan of the modules(pic attached). I ran the BMS reset and it was successful.

I took a pic of the DTCs from the initial scan before the BMS reset, then cleared the DTCs and took a pic of the DTCs after the clearing and rescan.

Thank you for your continued responses. I greatly appreciate it.

PS: I do not have a keyboard for my Microsoft surface so I can't take the screenshots, so took pics with my phone.
Initial connection.
Initial connection.
DTCs before clearing.
DTCs before clearing.
DTCs after clear and rescan.
DTCs after clear and rescan.
Reply
Old Jun 18, 2025 | 09:24 PM
  #15  
52merc's Avatar
5 Year Member
5 Year Member
Community Builder
Liked
Loved
 
Joined: Nov 2018
Posts: 6,726
Likes: 3,947
From: Calgary, Alberta
Default

Originally Posted by KDR1
I just finished following the above. I connected, selected 'no' and forced the rescan of the modules(pic attached). I ran the BMS reset and it was successful.

PS: I do not have a keyboard for my Microsoft surface so I can't take the screenshots, so took pics with my phone.
Use the snipping tool, "Windows Logo Key" + "Shift" + "S" and snip the portion of the screen you want.

There is still something wrong. FORScan should be finding your other modules such as: GWM, PAM, HUD, IPMA, IPMB, TBM (if you have it), PSCM, TCCM (if you have 4X4), C-CM, OCSM, RCM, ABS, SCCM, IPC, DSP, DDM, FCIM, HSWM, GPSM, PDM, RBM (if you have PRBs), DSM, RTM, SCME, SCMG, SCMH, SODL, SODR, and TRM (if you have it).

I take it you are using a cheap ELM327 knock-off. Part of the problem could be the adapter you are using. I suggest getting the one FORScan recommends, OBDLinkEX.


Without seeing all those other modules you have no idea what DTCs they are broadcasting.
Reply
Old Jun 18, 2025 | 10:31 PM
  #16  
KDR1's Avatar
Thread Starter
Junior Member
Liked
 
Joined: Jun 2025
Posts: 24
Likes: 5
Default

Originally Posted by 52merc
Use the snipping tool, "Windows Logo Key" + "Shift" + "S" and snip the portion of the screen you want.

There is still something wrong. FORScan should be finding your other modules such as: GWM, PAM, HUD, IPMA, IPMB, TBM (if you have it), PSCM, TCCM (if you have 4X4), C-CM, OCSM, RCM, ABS, SCCM, IPC, DSP, DDM, FCIM, HSWM, GPSM, PDM, RBM (if you have PRBs), DSM, RTM, SCME, SCMG, SCMH, SODL, SODR, and TRM (if you have it).

I take it you are using a cheap ELM327 knock-off. Part of the problem could be the adapter you are using. I suggest getting the one FORScan recommends, OBDLinkEX.


Without seeing all those other modules you have no idea what DTCs they are broadcasting.
Thank you for your response.

I did in fact use the ELM adapter before because the OBD didn't appear to be working. I have now used the OBD and shot a video from start to finish to demonstrate exactly what I see. The other modules are not found. I am including pics of the DTCs as well as the module list that is found. Any input is very much appreciated.

Link to video:

This pic shows DTCSs were cleared and returned.
This pic shows DTCSs were cleared and returned.
Reply
Old Jun 19, 2025 | 01:05 AM
  #17  
Bluegrass's Avatar
Senior Member
5 Year Member
Community Builder
Community Influencer
Top Answer: 1
 
Joined: Mar 2021
Posts: 4,796
Likes: 2,395
Default

The U coeds are all lost communications with many support systems, ABS, Steering, Restraint, IDC, PCM etc.
Consider a Bus Issue when all paths to each one are in trouble.
Of course, a forced Clear can be done but will be re-set when tests find the same issue over again.
Good luck.
Reply
Old Jun 19, 2025 | 10:47 AM
  #18  
52merc's Avatar
5 Year Member
5 Year Member
Community Builder
Liked
Loved
 
Joined: Nov 2018
Posts: 6,726
Likes: 3,947
From: Calgary, Alberta
Default

Originally Posted by KDR1
Thank you for your response.

I did in fact use the ELM adapter before because the OBD didn't appear to be working. I have now used the OBD and shot a video from start to finish to demonstrate exactly what I see. The other modules are not found. I am including pics of the DTCs as well as the module list that is found. Any input is very much appreciated.

Link to video: https://youtube.com/shorts/pvvnPqjCB...Oe4rCfYD2ubjg4


This pic shows DTCSs were cleared and returned.
It appears like your adapter is not switching to MS-CAN to complete the scan for all your modules. Check your MS-CAN support setting.



Reply
Old Jun 19, 2025 | 10:50 AM
  #19  
KDR1's Avatar
Thread Starter
Junior Member
Liked
 
Joined: Jun 2025
Posts: 24
Likes: 5
Default

Originally Posted by Bluegrass
The U coeds are all lost communications with many support systems, ABS, Steering, Restraint, IDC, PCM etc.
Consider a Bus Issue when all paths to each one are in trouble.
Of course, a forced Clear can be done but will be re-set when tests find the same issue over again.
Good luck.
Thank you for your response.

Searching for possible causes for a BUS issue, I found water intrusion into the tail lights as a top possibility. When I am caught in the rain, more often than not, the BLIS will stop functioning, could water intrusion into one of the connectors for the BLIS be the cause? While I've never had the turn signals or tail lights have an issue, I'll check those connectors. I keep my truck in the garage, so while possible, I don't think rodent damage to any wiring is likely. Would you happen to have any other suggestions? Any input is greatly appreciated.
Reply
Old Jun 19, 2025 | 11:10 AM
  #20  
KDR1's Avatar
Thread Starter
Junior Member
Liked
 
Joined: Jun 2025
Posts: 24
Likes: 5
Default

Originally Posted by 52merc
It appears like your adapter is not switching to MS-CAN to complete the scan for all your modules. Check your MS-CAN support setting.

Thank you for your response.

I just verified everything on mine is set the same as in your pic. I had the same problem when using the OHP ELM adapter, when switched to MS-CAN, FORScan returns a message that it cannot connect. So, neither will connect to the MS-CAN. Assuming the MS-CAN is bad, would that create the condition I have or would the truck not run at all?
Reply



All times are GMT -4. The time now is 03:56 PM.