Connecting to UBP modules

Discussion about adapters and connections - usage, problems, solutions
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ThatOneDude
Posts: 162
Joined: Fri Jul 07, 2017 12:46 pm
Vehicle: 2012 Ford Expedition 5.4L 3V 4WD

Connecting to UBP modules

Post by ThatOneDude »

I have a OBDLink MX Bluetooth unit, and have had very few troubles connecting to several vehicles from early models to more recent MS-CAN equipped models.

On my 2007 Ford F-150, there are 3 main module communication networks. HS-CAN, ISO, and UBP.
module-comm-net.png
module-comm-net.png (99.52 KiB) Viewed 2525 times
My truck is a base XL model, and does not come with several modules. I am able to access the RCM over ISO, and the PCM, 4X4M, ABS, and IC modules over HS-CAN.
forscan-modlist.png
forscan-modlist.png (37.95 KiB) Viewed 2525 times
For some reason, I cannot access the UBP network to check out the VSM, where my Keyless Entry and TPMS systems reside. Has anyone else had success connecting to the UBP network that could provide any tips?
1996 Lincoln Town Car (For Sale)
2003 Ford Crown Victoria Police Interceptor (For Sale)
2007 Ford F-150 SuperCab 5.4L 3V 4WD
2011 Ford Crown Victoria Police Interceptor (For Sale)
2012 Ford Expedition 5.4L 3V 4WD
Apf
Posts: 4
Joined: Mon Oct 23, 2017 1:54 am
Vehicle: 2017 Ford 150 Raptor

Re: Connecting to UBP modules

Post by Apf »

I cant get my forscan to read my truck. Saying no connection and I have the key on and started truck 2. Any ideas.
Ecmbuster
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Vehicle: Volvo Bertone and two Motorcyles
Location: On a spinning rock

Re: Connecting to UBP modules

Post by Ecmbuster »

This is an olde post and hopefully your issue has been solved.
For the current readers, this interesting link was found some time ago and put it aside.
The message to this type of diagnosis is "it takes one network to take down an entire network"
The link is useful with a multi-meter but prefer the oscilloscope.
The messages can be quickly identified at the network that is "disturbed".
The offender can be removed / disconnected and the oscilloscope messages will look normal.
Once the suspect is disconnected, the rest of the scan should proceed with that one missing control unit.

Access this article:
http://www.automotivetroubleshootingsec ... tocol.html

Read these included documents.
Attachments
Modules and Data.pdf
(97.35 KiB) Downloaded 22 times
Diagnosing Ford communication network problems - Auto Service World.pdf
(70.07 KiB) Downloaded 19 times
Do not ask for help in PM. Use the forum to ask and answer questions!
Ecmbuster
Posts: 964
Joined: Sun Mar 15, 2015 4:08 am
Vehicle: Volvo Bertone and two Motorcyles
Location: On a spinning rock

Re: Connecting to UBP modules

Post by Ecmbuster »

Ford UBP oscilloscope test
https://www.youtube.com/watch?v=7_8HmFsDsdo

This video seems to indicate the serial data stops and starts.
Obviously a problem between one or more controllers or the controller itself is defective.
If the network is active with no faults and no damage, the messages will continue untill the power supply is switched off.
Any change or operating a controller on the UBP network, will change the message structure on the oscilloscope.

Edit: Document added
Attachments
F150 2WD V8 UBP.pdf
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Do not ask for help in PM. Use the forum to ask and answer questions!
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