Traction Control Kicks On Around Corner
 

2013 FR-S. When cornering to the right, the traction control will kick on and car will act strange. Does not do that when turning to the left. Any ideas?

you mean to the left?

How are your tires?

Wrong place for the thread. This needs to me moved to the Suspension | Chassis | Brakes section in Technical Topics.

Same thing. Oversteer only on right turns, fine on left.

Michelin supersport tires 225/45/17.


Sent from my iPhone using Tapatalk

The trac off button doesn't fully turn off the TC you need to do the pedal dance to fully turn it off.

I'm assuming it's with the TC still on?

A few possibilities come to my mind.
- driver weight on one side? (This may be invalid if this is already accounted for when setting the car up from the factory)
- alignment differences from L/R?
- If it's not the same place, maybe the road surface is different?

Tires are in excellent condition.

If the tires are a different height width or you have different wheels from stock sizes you need to do a Zero Point Calibration.

As noted, it could well be just driver weight. Turning right, you are adding more load to the left side (including driver weight), and lightening the right side. Turning left, you are reducing load on driver side and adding to (lighter) passenger side. I can tell the difference when I track my car with, and without, my son riding along (about same size).
If you have some spot that is repeatable, try it with, and without, a similar-sized friend riding shotgun.:thumbsup:

Is this test being performed on a skidpad?

On a public road what are the odds you're actually performing exactly the same turn right vs. left? I'd say pretty slim unless you're in a parking lot.

I did google it, cant find anything. Can you explain the process? I assume ill need some type of interface into ODB2?

Thanks!

See if you can get a big empty parking lot with consistent, fairly fresh asphalt and try both left and right hand turns. Bring a passenger along to see if it's truly repeatable. Snap the wheel 1/8 turn each time, then 1/4 turn and see if both times it was identical.

I think the previous posters are onto something with either inconsistent turns, passenger weight, or a super screwy alignment.

Have you had the car aligned? Has it always done this or is this new behavior? (Or is the car new to you?)

^ +1 on alignment if there truly is a problem

reset steering angle sensor. have you replaced the tie rods ?

Are these turns the same? On the twisty roads I go on, I can get my traction control to kick in easier on the right turns because my right turns are sharper than my left turns (driving on the right hand side of the road).

Also as others have mentioned, try driving with a same size passenger, it makes noticeable changes how my vehicle handles during turns because of weight shift.

And for me, regarding driver confidence, on a sharp right turn I'm not as afraid I'm going to swing my rear into a wall as my left rear is farther from the edge of the road than when I'm turning left where my right side rear is closer to the wall, again assuming right hand side of the road driving.

Turn it off. Problem solved.

VSC and TC turn on automatically after certain conditions are met. Unless you get the @86Nanny the modes are temporary.


Here's a DIY on Zero Point Calibration. It's performed on a Toyota so maybe there's an explanation for our cars specifically out there.


[ame="https://www.youtube.com/watch?v=0GZS_Nqub1U"]https://www.youtube.com/watch?v=0GZS_Nqub1U[/ame]

One of the best experiences I've had with these cars was doing rear LCA's and correcting camber without touching toe.

Dropping a degree of camber without adjusting toe made the car truly undrivable as you passed 15mph. TCS light flashing over pebbles on the road, or the slightest of wheel movements.

Fix the toe, tweak the camber, fine tune the toe again, and the thing tracked straight and had more grip than it ever had.

A dash of toe in the wrong way can absolutely RUIN a car.

Unless you get the 86Nanny, OR do the pedal dance...

Quoting for a reminder of what was said:
Untrue. Pedal dance resets when you restart the car.

Irrelevant, and nothing I said was untrue.

Pedal dance is a pain. He should IMHO just start with a Zero Point then go from there. @86Nanny is worth every penny and the new version coming soon has more features but both are meant for the track not street.

This with everyday around town use or on the track?

Maybe you wanna start with the simplest explanation: Right hand turns on the street tend to be shorter radius than left hand turns. At a constant speed the shorter radius turn will push tire grip closer to maximum.

Make 4 rights and then 4 lefts and see where you end up

There's no telling where you'll end up. That entirely depends on the angle of each corner.