2011 Scion xB - Steering has been heavy ever since a major power loss event. No codes.
I'm hoping someone has seen this before. I have a 2011 Scion xB with electric power steering. A while back, the car suddenly had an extreme loss of electrical power while driving. After that, I replaced the alternator and starter, and the car has been running…
I'm hoping someone has seen this before. I have a 2011 Scion xB with electric power steering. A while back, the car suddenly had an extreme loss of electrical power while driving. After that, I replaced the alternator and starter, and the car has been running again. Ever since that incident, the power steering has never felt the same. It's noticeably heavier than it used to be, especially at parking lot speeds and during tight turns. It feels heavy from the moment I start the car, but progressively gets worse as the car runs but never reaches a state that's not driveable , however it just really annoying I've had a mechanics inspect it the other mechanics starter and alternator work and did second check up They've scanned the car, including the EPS system, and found no fault codes. He even drove it for a few days and said everything felt normal, but I know the steering isn't what it used to be before that electrical failure. Itd so appearant , especially while parking/ trying to get in a tight space. Has anyone experienced this after a charging system failure?
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There is a relearn procedure for the steering angle and steering torque sensor which has to be completed whenever you change either of these components or you get issues such as you describe. I wonder if a loss of power to the control unit also makes it lose its adaptation. A quality scantool with the ability to interface specifically with Toyota ECUs is required for this, something like a Snap-On or one of the more expensive Topdons.