I have searched all the threads and all the expert FORScan guys seem to avoid clear direction regarding this problem. I am assuming for liability reasons because obviously this interacts with ABS and steering brake issues for emergency conditions. My issue is only that I wrote the asbuilt into the PSCM and everything is great but there is a code regarding initialization of the steering angle which seems to read zero regardless of the position of the wheel. So to get everything initialized , do I reset the PSCM? What is the trick to get things started. FORScan says the code is all about initialization of the steering angle. What is the trick? Wheel straight and..........

 

Not trying to be difficult but swamplynx gave you some guidance and good advice in the Forscan thread. It's the first I heard of anyone doing it and it's why I inquired why you wanted to know. Livinitup and Airborn Ape both saw your thread and if they didn't give an answer I don't think you'll get one here. I do believe you'll need to bite the bullet and visit a dealer to have them use their IDS to correct.

 

If it isn’t in FORscan (I haven’t checked), you can buy a two day license for IDS, but you need a VCM II. At that point I would just go to the dealer.

 

My apologies. I guess I didn’t understand. I’m a bit new here and some terms I am not familiar with. I got it. Thanks for your and others reply. I appreciate your patience. I reset steering angles for a bus manufacturer along with our regular programming and troubleshooting so I assumed I wasn’t doing something right in FORScan.

 

If / when you do figure out the solution please be sure to follow up with your results and methods. I have a theory that the steering sensor is what is at the heart of the pull / drift / wander problem many of us are having.

 

You could try and ask the developers of Forscan at Forscan.org if there is a way to do it.

 

Was there ever any update on this? I have gone through a ton of alignments and still can't get my steering wheel centered. Was hoping there was a way I could align via ForScan. I have actually sat in the truck and set the steering wheel centered and had the tech set the toe. As soon as I start driving, steering wheel moves off-center. Very frustrating. I also have the Lane Keep feature on my 2015 502a and experience these wander issues. I'm losing my mind. Been chasing after this issue for about 3 months now. Even changed shocks and spindles and lift kit to try and get better suspension and tie-rod angles after a leveling kit gave me way too much lift. Thrust angle is only 0.16. I have seen trucks with double the thrust that still drive nice and straight. Have done the LKS TSB update as well and have it and sensors re calibrated after alignment.

 

Have you tried the Calibrate Longitudinal Sensor for ABS? Its the IVD Initialization procedure from IDS. I did the procedure but not sure if that did it for me or disable and then enable pull drift compinsation after a month did it for me as I did both at the same time since I was already in there. Anyways my steering wheel is finally straight and doesnt wonder like it did after my lift and alignment was done.

 

No I have not. Are you saying there is a way to disable/enable pull drift compensation on ForSCAN and /r IDS? Are you sure you re-enabled it? Most people seem to want to disable it to make the steering feel more natural. Please enlighten us!!!

 

I disabled it after Wicked ace directed me to a thread where he mentioned he disabled it through forscan. I was having issues after I did bilsteins and got 2 alignments and steering was off center and would just wander like crazy. So I went into PSCM and went to line 730 01 02 for pull drift compensation. Have to change the value to 0 as follows
From this 730-01-02 xxxx xxx1 xxxx
To this 730-01-02 xxxx xxx0 xxxx
1=enabled 0=disabled
Felt the difference right away. Then a month later I got curious and turned it back to its original value but also did the Calibrate Longitudinal Sensor procedure as well so I am not sure if re-enabling the pull/drift compensation allowed it to relearn since just disconnecting battery doesnt change it or if the calibration procedure corrected it or it may have been both. From what others have posted just disabling it and re-enabling right after doesnt work. Need to drive with it off for couple days then try turning it back for it too relearn. Can also just leave it off as well if you wish.