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Steering Angle Sensor Calibration Option not in ISTA-D

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13K views 7 replies 6 participants last post by  speedyf15  
#1 ·
Hey,

I own a 2014 F15 X5 sDrive35i which had the battery replaced because it was dead.

After the replacement the obvious message came up "chassis stabilization initialization" and I've googled to see that I need to calibrate the SAS using ISTA-D. After getting an ENET cable and had the installation of ISTA-D run successfully I read out the vehicle and moved to the "Powertrain/Chassis" Path where the steering angle sensor is located but there's simply no option to start the alignment - it just says "Steering Angle Sensor" without any options or explanations.

Also heading over to the ECU List in Tree View and opening EPS gives me no option to start the calibration.

Anything that I miss ?
 
#2 ·
I can try remotely for you if that would help? I’ve done a few this week.


Sent from my iPhone using Tapatalk
 
#4 ·
So since I found like >10 posts describing the same error but not one with a resolution, I'll post the resolution here:

The X5 F15 with active steering doesn't have a classic SAS or Steering Angle Sensor - it has a Torque Sensor which does the same function. The Torque Sensor needs to be reset using the Electronic Power Steering "Start-up" function which was the top entry in "Chassis" for me, the same category where also steering angle sensor is displayed.

After the reinit every error message went away and it's all back to normal now.
 
#7 ·
Hi ,I'm facing same problem (no angle sensor reading) but it will be very helpful if you can post some screens from ista D ,particulary under EPS Ecu test two values, pinion angle when is in position "zero" steering wheel straight and at the same time what is your motor position angle sensor

here is my screen when pinion angle reads at zero and motor position angle is at 174 degrees i just want to make sure if this is correct as i'm struggling with EPS start up

 
#6 ·
Hi. Thanks for sharing this info, I was dealing with the same yesterday. Long story short, I've recalibrate same sensor that you have mentioned above and most of the error massage are gone, except two that was caused by disconnecting both batteries.
I did the calibration one time only, but I've seen on forums ppl say that they do it twice.
 

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