When going in or out of wide turns my slip light come on and off and my traction control or abs randomly engages. Nothing wrong with steering angle sensor. Can anyone tell me why this is happening? It pretty scary and annoying.

 

How do you know it's not the steering angle sensor calibration? That's EXACTLY the symptoms.

I would go to Nissan for a diagnostic, there's not a lot you can do to actually troubleshoot what's triggering the VDC system.

 

I took it to a Infiniti dealer and they said it’s not the steering angle sensor

 

Ok... so what did they say the problem is? Their Consult-II/III diagnostic machine will literally tell them EXACTLY what is causing the light.

 

They didn’t say exactly. My front drive shaft U joint was bad and that could be triggering the problem but I replaced it and still no resolve. They also said it could be the back brake pads being a little low.

 

Neither of those items will trigger the VDC light, when that light is on they can literally just plug in the Consult-II/III diagnostic tool, follow the diagnostic steps in section BRC - Brake Controls (basically just link to the ABS computer and run the self-diagnostic), and know immediately what the problem is. Are you SURE you went to a Nissan/Infiniti dealership and paid them for a 1 hour diagnostic? Something seems off, I'm fairly sure they didn't run the ABS self-diagnostic. They're also not going to do this for free, it's a 1 hour diagnostic.

The system monitors the wheel speed sensor, steering angle sensor, yaw sensor, and power steering pressure switch. It uses this data as well as throttle % input to determine when the system needs to be engaged and which wheels need to have brake pressure applied via the ABS relay, motor, and solenoid block. It also limits throttle motor %.

Have you had the steering wheel apart EVER?

Is your brake fluid at normal level?

Does the car track perfectly down the road or do you need to steer it slightly left or right to keep it centered?

Have you had your alignment checked lately?

Do you have the correct size tires on the car and are they properly inflated?

 

The clock spring was replaced. They said that was not the problem. Alignment was checked and good.tire size is correct brake fluid normal.

 

Just to verify you have the EXACT SAME size tire on all 4 corners yes?

Also, you said the clock spring was replaced, was it ever recalibrated or did they just install a new one? They do require calibration usually.

 

All four tires are the same and I had the dealership recalibrate it.

 

In that case it's time for a 1 hour diagnostic at Nissan/Infiniti. Unfortunately there isn't a way to test for those errors as part of a non-Consult-II self-diagnostic. It's going to require Consult-II to find the problem and my gut is telling me they didn't calibrate the steering angle sensor properly.

Reason for that guess is it only happens when taking a wide turn, the only variable in that situation is the wheel speed sensors, yaw sensor, and the steering angle sensor, your wheel speed sensors and yaw sensor would throw some sort of error even when driving straight but the steering angle sensor being even 1 degree out of calibration will cause an inconsistency between the actual steering angle and the yaw sensor. The yaw sensor is basically a fancy compass that tells the ECM that the vehicle is rotating in a clockwise or counter-clockwise fashion, like spinning on ice or of thing. The yaw sensor is pretty bulletproof and has no recalibration but the steering angle sensor needs to be VERY VERY precisely recalibrated or it causes a difference in steering angle vs. yaw angle.

Since these kind of recalibrations are usually given to entry level technicians there's a lot of room for user error if the tech didn't have the steering wheel LITERALY EXACTLY straight forward, 1 degree off is enough to screw up the recalibration.

EDIT: Because bourbon makes words hard.

 

I trust that it is GOOD bourbon!