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4WD Fault Service Required
- Thread starter mcfarlrm
- Start date
Do you have a wiring diagram that verifies that is it grounded through the case because I am researching a similar issue on my mom's 2020 Platinum? She has the following codes: U102F, U0102, U0146, U011D, U0100, and U0418 accompanied by the following messages in the cluster "4WD Fault Service Required," "Hill Start Assist Not Available," "Service Advance Trac," "Pre-Collision Assist Not Available," and "Reverse Brake Assist Not Available See Manual" (when shifted into reverse). I found the Ford TSB 23-2061 which seems like it would repair a weak or broken ground wire on Pin 46 of the TCCM under the driver's seat. I'm not seeing a whole lot online about this TSB or the repairs, but it looks promising at least for this slew of codes and messages.
Not all of your codes are listed, but You can check you trouble codes here:
https://www.foexplorer.com/ford_explorer_diagnosis_and_testing_dtc_chart_and_pinpoint_tests-822.html
Seems like you have a module communications issue, do you have access to a scan tool or forscan?
if you scroll down you should find this:
It appears to be grounded thru the case.
https://www.foexplorer.com/ford_explorer_diagnosis_and_testing_dtc_chart_and_pinpoint_tests-822.html
Seems like you have a module communications issue, do you have access to a scan tool or forscan?
if you scroll down you should find this:
It appears to be grounded thru the case.
Last edited:
Thanks for the additional information!
Yes the TSB is splicing in an additional ground wire that will basically 'T' off the original and terminate with a new bolt under the seat..... almost as to compensate for poor module case grounds etc. Not sure.
Also yes I have FORScan. That's what I used to pull these with. Whatever is causing her issue is a hard fault because the cluster messages and codes are there every time she drives it.
Yes the TSB is splicing in an additional ground wire that will basically 'T' off the original and terminate with a new bolt under the seat..... almost as to compensate for poor module case grounds etc. Not sure.
Also yes I have FORScan. That's what I used to pull these with. Whatever is causing her issue is a hard fault because the cluster messages and codes are there every time she drives it.
I ended up taking it to the dealer and they said the AWD module needs to be replaced as I thought. They said the total including diagnosis is $839.47. It's feeling like they aren't going to cover it under the powertrain warranty. I'm just not sure if I want to fight it right now or get it over with.
Yeah, that's what I was looking at and when I asked them why the component wasn't covered they said, "Once we have a causal part number, we run it for coverage. If the part number falls under warranty for powertrain, it will say it is covered. If it is not a covered causal part it will state not covered, which is the case with this repair." When I asked them about the TSBs they said, "TSB's are a directed repair. A guideline from Ford directing how to repair. It is not an extension of warranty." So basically since their system didn't show the AWD module as a cover part the TSB means nothing.
