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2015 Ford Edge - PS problem - shaking wheel
18-05-2022, 16:04 PM,
Post: #1
2015 Ford Edge - PS problem - shaking wheel
Hi there,

My friend bought 2015 Ford Edge and asked me for help. It was involved in some accident and PSCM (Power Steering Control Module) was changed (not whole steering rack).
Thing is that now car does whats in movie attached.
There are no errors in any module.
One thing I've noticed - in ABS module in live data it doesnt show Steering Angle. Only RAW Steering Angle - is that normal?
I see there is some sensor on rack itself (where it meets with steering column) and I'm wondering if it could be broken or is it bad trail?
Is there VIN in PSCM coded?
Please help if anyone know what to do smile
Cheers

19-05-2022, 17:57 PM,
Post: #2
RE: 2015 Ford Edge - PS problem - shaking wheel
Steering angle is read from the SASM module which is basically the clockspring. The PSCM more than likely has an internal angle sensor as well. If SASM & PSCM angles don't match I could see the steering going crazy. These vehicles also come with a SECM (Steering Effort) module mounted to the column. That could also add input like you are see in the video. Are you scanning the vehicle with IDS or some other tool? The PSCM needs to be programmed with IDS or FJDS after replacement (you *might* be able to use Forscan and perform as-built). Do that first if you haven't done it yet.

There are 3 different PSCM racks for this vehicle (one for FWD 18 & 19" wheels, FWD 20" wheels, & AWD). Make sure you have the correct rack.
20-05-2022, 06:46 AM,
Post: #3
RE: 2015 Ford Edge - PS problem - shaking wheel
Car doesnt have steering effort.
I've done asbuilt with forscan and still problem is there.
Not whole rack was changed but just motor and I think thats the problem - could be wrong one - already noticed there were 2 types for FWD only.
Today will connect to my friends Fusion (very similar construction) and see live data there to compare.
Changed clockspring to other one (from Fusion) but that didn't changed anything.
Will post any updates if I find anything new.

Maybe someone have wiring diagram for power steering and abs in this car?
21-05-2022, 05:43 AM,
Post: #4
RE: 2015 Ford Edge - PS problem - shaking wheel
Done some coding and same problem. What I've noticed - it doesnt have angle sensor coded in steering column control module.
Connected yesterday my friends Fusion and it shows angle as it should but same thing with coding - no SA in SCCM.
I'm gettin almost 100% sure that steering motor (with module) is wrong one installed for this car.
Anyone know if those motors can have angle sensors in it?
21-05-2022, 07:23 AM,
Post: #5
RE: 2015 Ford Edge - PS problem - shaking wheel
It may be the wrong ratio for your wheel/tire size, but I wouldn't think it would go ballistic like you are seeing. Something else is wrong, possibly internal to the steering motor. There are no codes in any module, primarily ABS, SSCM, & PSCM? Try to program with IDS or FJDS. You should record a live data session of the PSCM stream with the vehicle at idle for a good 20 seconds and then move the wheel. Upload it here. Forscan has this feature I believe.
21-05-2022, 09:02 AM,
Post: #6
RE: 2015 Ford Edge - PS problem - shaking wheel
In PSCM it doesnt show angle at all. Done programming but no difference. On monday will try to record stream from PSCM and post it up.
NO CODES at all...everything looks ok but its not smile


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