My Corsair had a recent accident at the rear and had physical damage and had to replace the rear suspension. Upon running the diagnostics the vehicle has lost steering power and PSCM hasn’t been active since. We were able to reset the RCM module instead of replacing it and also purchased a new replacement Steering Column we also replaced the battery and software updates have been made.
The same errors remain:
PSCM U3000: 49: 8A
FT: 49= Internal Electronic Failure
ST: 8A = Current DTC - Warning Lamp on Fault is currently present on (MIL, Wrench, Message Center, etc)
This Module uses GGDS Format 00 DTC descriptions
PSCM- U3000: 66: 8A
FT:66= Signal Has too many Transitions/ Events
ST: 8A = Current DTC - Warning Lamp on Fault is currently present on (MIL, Wrench, Message Center, etc)
This Module uses GGDS Format 00 DTC descriptions
Any advice or how to fix this would be greatly appreciated
You can’t just drop the factory AB in a PSCM, after the AB is dropped in the PSCM has to be calibrated as well as the SCCM/steering column angle sensor.
You need to load the factory AsBuilt into the PSCM.
Forscan with an extended license, you go to the module, open AsBuilt config, click on the button Load Factory (need to be online for this or you can pull the file down from https://www.motorcraftservice.com/Asbuilt/ ).
With the PSCM you get a limited number of tries to calibrate a new one before it bricks.
At this point we have 2 steering columns, the original one the car came with that had the accident and the brand new one I purchased which after the software update showed the same DTCs. I was told that both PSCMs don’t work and I have to get a 3rd one now. What do you think the best course of action would be? Thank you!
The Power Steering Control Module is the control module built into the EPAS rack, it’s not part of the column.
The SCCM is the Steering Column Control Module
Wow I was told it’s part of the Steering Column. The issues we are having are all PSCM U3000:49:8A and U3000:66:8A, so you’re saying that module is in the gear rack and pionion steering part? Is that a certainty?
That module has been part of the EPAS for over a decade, replacing a bad one requires replacement of the entire rack.
You might be able to reset the module using Ford FDRS and a J2534 adaper, you run the PSCM reset service procedure.
Yeah actually changing the suspension wasn’t as bad however this steering power issue really is crazy. Not sure what caused that, I’m still trying to figure out which is the part I need to replace
I stand corrected, got a copy of the shop manual from a guy up the road.
The 2020+ Escape, Corsair, Maverick & Bronco they built the PSCM & motor into the column, there is a reference to remove/replace the PSCM from the column.
SSM51459 for a U3000 code.
Some 2020-2022 Escape/Corsair, 2021-2022 Bronco Sport, and 2022 Maverick vehicles built on or before 23-Mar-2022 may exhibit a hard, stiff, and/or difficult to turn condition due to a lack of power steering assist during engine start-up with U3000 diagnostic trouble codes (DTCs) stored in the PSCM. Using the latest version of Ford Diagnosis and Repair System (FDRS) tool, select and run the PSCM -Reset the Power Steering Control Module (PSCM) application. After PSCM reset, perform an ignition cycle. Update the PSCM to the latest software level using FDRS tool. If the U3000 DTC returns, continue with diagnostics and repair direction using Workshop Manual (WSM), Section 211-02 > Power Steering >
Diagnosis and Testing. For claiming, use causal part 3C529 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
Thank you for your thorough comment. The vehicle was build in August of 2022, I see this memo applies up to March of 2022 so not sure if my part is affected. I also checked to see if the vehicle was on the recall list but wasn’t. I also purchased a brand new Steering Column (LX6Z3C529BQ) and we updated and installed the latest software level via FDRS I believe, the DTC still shows. How do you remove the PSCM from the column? I haven’t seen the PSCM being sold as a separate component. Also I don’t remember if we tried the Forscan AsBuilt configuration, do you think that would work?
You’re confusing calibration vs configuration.
The normal process for replacing a Ford module is to download the existing config from the module using Forscan or FDRS/IDS, save it, install the new module, load the saved config into the module, finish the service procedure eg re-calibrate the unit.
If you don’t have access to the old module config (eg the module is bricked) you load the factory AsBuilt into the module and then finish the service procedure.
The factory AsBuilt is vehicle specific, it tells the module how to interact with other modules in the car and what to expect in the car (some like the PSCM & PCM have the VIN in the config).
A brand new module only has enough of a config in it to boot and then get a config loaded in it, in the case of the PSCM it doesn’t know if the car is an Escape, Corsair, Bronco or Maverick, nor does it know if the car is RHD, LHD, FWD, AWD (eg the Escape) or 4WD (eg the Corsair). You have to do this even with a used one as 1) it has the wrong VIN in it, 2) any of the above variables, 3) production line changes (guy up the street from me has 3 “identical” 2021 Escape Ti, the stickers are identical except for the color, he works at L’ville assembly and they were all built within a 16 day window on the same job number. They all have at least one module that has a difference from the other 2 in the config, and I’m not referring to the VIN).
If you were to put this into cell phone terms, you bought a new/used cell phone and you can’t make a normal phone call with it because it doesn’t have a sim in it or a number assigned to it. The sim adds the carrier configuration to the phone so that you can make a normal call.
This is the current situation. A Forscan AsBuilt was just done as well. This is all on the current (new) Steering column with the new PSCM module. We didn’t have access to the old module config, does it matter if FDRS was done first with the software update? The Forscan AsBuilt was done after I believe. Also considering that all those steps have been done, what else can be implemented on the current PSCM or I have to buy another brand new Steering column again ?
Disconnect the 12v battery and get a full charge into it.
Reconnect the battery
Reset the DTCs
Disconnect the 12v battery for 35 minutes.
Perform an ignition cycle.
As Bill said its strange that you’re having this from a rear end collision, have you checked the wiring harness for damage?
This could be a case where the RCM needs to be replaced rather than being reset. 2021 Bronco sport PSCM
Thank you! We will try that. Also an interesting fact: the first battery that the car had had died after the accident, we replaced it with brand new one. After the FDRS software update this battery had also died and had to be charged. Regarding the wiring harness multiple people had checked for damage and none was found. The RCN wasn’t replaced it was only reset, I can get it replaced. One of the people is saying this specific PSCM is most likely defective
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