2022 Expedition ABS shudder when moderately stopping

[Cemmert3]

Hey guys, i work at the Preston Ford store and im a bit stumped this morning. 2022 has codes
★IPMA U2107:68:2F
Collision Mitigation By Braking
★IPMA Control Module
U3000:89:2E
There is a TSB for these codes, however it applies to vehicles built on or before may 13, 2022. the build date on this vehicle is may 15, 2022. So the tsb doesnt apply to this vehicle. i updated the IPMA and ran a IPC configuration, both successful. problem still persists and i only have a code for lost comms with the active air dam module.


Control Module

 

[Hellwig]

Hey guys, i work at the Preston Ford store and im a bit stumped this morning. 2022 has codes
★IPMA U2107:68:2F
Collision Mitigation By Braking
★IPMA Control Module
U3000:89:2E
There is a TSB for these codes, however it applies to vehicles built on or before may 13, 2022. the build date on this vehicle is may 15, 2022. So the tsb doesnt apply to this vehicle. i updated the IPMA and ran a IPC configuration, both successful. problem still persists and i only have a code for lost comms with the active air dam module.


Control Module

Does the vehicle have after-market electrical device like start/stop eliminator? I got all kinds of weird issues when lower connector of the eliminator was loose, like the passenger heated seat being turned on "secretly" even when the button was off, or the power rear liftgate feature stopped working occasionally, or AC stopped working intermittently.

 

[Cemmert3]

Start/stop works fine, i do not see any aftermarket connectors.

 

[rd618]

Hey guys, i work at the Preston Ford store and im a bit stumped this morning. 2022 has codes
★IPMA U2107:68:2F
Collision Mitigation By Braking
★IPMA Control Module
U3000:89:2E
There is a TSB for these codes, however it applies to vehicles built on or before may 13, 2022. the build date on this vehicle is may 15, 2022. So the tsb doesnt apply to this vehicle. i updated the IPMA and ran a IPC configuration, both successful. problem still persists and i only have a code for lost comms with the active air dam module.


Control Module

Try to process the TSB and see if that resolves it. The timing is within a weeks production window, there is a chance a defective component could have made it through that close.

 

[Cemmert3]

i ran the IPMA update and the IPC configuration. problem still persisted. Monitored all 4 ABS sensors on datalogger via FDRS. RR found to have a jump in the signal when the pedal jolted.

 

[Hellwig]

i ran the IPMA update and the IPC configuration. problem still persisted. Monitored all 4 ABS sensors on datalogger via FDRS. RR found to have a jump in the signal when the pedal jolted.

Then perhaps it's the time to install new sensor(s), or check the wires?

 

[rd618]

i ran the IPMA update and the IPC configuration. problem still persisted. Monitored all 4 ABS sensors on datalogger via FDRS. RR found to have a jump in the signal when the pedal jolted.

What do you mean pedal jolted?
When it was depressed or rebounded?
Swap sensor with RL and see if issue follows sensor.