When backing out of driveway then shifting to drive and turning steering wheel, the traction control comes on. This happens even when pavement is dry. I back off the gas and then continue, traction control goes off.
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Re: Traction Control comes on
I would recommend you have the vehicle scanned for trouble codes. You can get this done at no charge at your local Auto Zone or Advance Auto Parts store.
Record the code numbers and reply back to this message and we can go from there.
Based on your description, I would guess you may have a HWSS ( hand wheel speed sensor) issue or possibly an ABS wheel speed sensor problem, again, this is only a guess until you have the codes read.
Let me know.
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What it looks like:
The traction control warning light typically takes the form of the acronym "TC." Sometimes this light is a small illuminated picture of a car losing control
What it looks like:
The traction control warning light typically takes the form of the acronym "TC." Sometimes this light is a small illuminated picture of a car losing control.
How this system works:
Traction control uses wheel speed sensors to detect when one or more of the car's wheels lose grip and traction. When the system registers a loss of traction in one or more of the wheels, a computer will limit power to the wheels that are still in solid contact with the road to prevent a skid.
Common reasons for this to happen:
ABS is malfunctioning: Traction control and ABS (anti-lock braking system) often share the same control module and internal self-diagnostics system. As a result, sometimes an issue in the ABS can trigger the traction control light. If this is the case, then both the ABS and Traction Control lights will be on.
Broken wheel speed sensors: Wheel speed sensors are usually in the wheel bearing assembly, and determine the rate at which each wheel is moving. The sensors relay that information to the traction control module, which determines whether or not power needs to be shifted. Wheel speed sensors can get dirty or damaged and stop working, which prohibits the traction control module from knowing when to enable the system.Traction control module is faulty: The traction control module - which, again, is often shared with the ABS - can malfunction and break altogether, causing the system to stop working.
What to expect:
A top-rated mobile mechanic will come to your home or office to determine the source and cause of the traction control issue, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.
How important is this service?
It's important to have the traction control issue investigated as soon as possible, as adverse driving conditions can arise at any time. While your car is unlikely to incur further damage from a faulty traction control system, it won't be safe to drive in rain, snow, sleet, or other inclement weather, or even possibly through pools of water on the road. Furthermore, the issue that is causing the traction control light to illuminate could also be impacting the ABS.
check the hub assemblys when the traction control is engaged the computer does not allow full power to be distributed to the traction wheels should also check the rack and pinion either 1 of these issuses can cause problems with the steering and control of the vehicle also check the traction sensors
Traction assist is a measurement that compares the spin of one wheel to the spin of another. When a traction light is on, it means that the system is activated to make the two wheels spin at the same rate.
Traction control systems perform this in several ways. Some systems use independent braking to apply the brakes to the fastest spinning wheel. Other systems affect the engine so RPM is lowered and a combination of both methods may be used to brake one wheel while reducing engine RPM.
Now the spin counter can be mounted at each wheel or in the differential. Those that are mounted in the wheels are subject to debris like rust or brake pad material blocking the spin counters.
I can imagine the trans being tied into the traction system by limiting the trans from shifting into higher gears if the car thinks the wheels are already turning too fast.
Now I am not a Lexus Expert, but on Mercury systems the Traction Control has an on/off switch. If you go to alldatadiy.com or Autozone.com and register your vehicle for free. You will be able to get wiring and fusebox details. If the traction control system has its own fuse, pull it.
There is a good chance that with the traction control shut off, the car will shift normally. Then you can drive somewhere that can test the traction control and predict what is wrong.
TRACTION CONTROL: An enhancement of an existing ABS system that prevents wheel spin while accelerating on wet or slick surfaces. It uses the same wheel speed sensors to monitor wheel speed during acceleration, but requires some additional control solenoids and a pump to apply braking pressure to control wheel spin. The traction control system brakes the drive wheel that's starting to spin to shift torque to the opposite drive wheel that still has traction. Most traction control systems only operate at speeds up to about 30 mph. Additional control strategies that some traction control systems use to limit wheel spin include reducing the throttle opening, upshifting the transmission, retarding spark timing and deactivating fuel injectors.
A Dodge Dakota with 4-wheel steer? Do you happen to mean 4-wheel drive?
If so, you should not operate the vehicle in 4-wheel drive when you are traveling on a hard, high-traction surface. When in 4x4, the transfer case connects the front and rear axles, and does not allow for differentiation of wheel speeds necessary when turning. This is compensated for when driving over low-traction terrain because the tires slip easier.
Basically, the jerking, bucking and locking of the truck is due to the binding. This will eventually lead to damage in the driveline. If the roadway isn't covered in snow, there is no need for the 4 wheel drive to be engaged.
TCS stands for Traction Control System.
The traction control system works in conjunction with your Antilock Brake System (ABS) and your Engine Control Module (ECM) or Powertrain Control Module (PCM) or Electronic Control Unit (ECU) (Note that ECM, ECU, and PCM all mean the computer that controls your engine, depending on make.)
Anyway, the traction control system can apply one or more of the brakes and control engine RPM in the event that a wheel slip has been detected by the traction control system.
Pushing the TCS button on most models will light a lamp in the instrument cluster that usually says "Trac Off" Pressing it a second time will turn this light back off.
When the "Trac Off" light is illuminated, the Traction Control System is disabled and will not work in the event of a wheel slip.
Also note that when the Traction Control System is working and a wheel slip is detected, The Traction Control Module will usually illuminate a light that says "Trac" as it is taking control of your brakes and engine. It can feel really strange when this occurs and some people think that their transmission is slipping or that their engine has a misfire problem.
The chances are that if it occurred on wet, slippery pavement, the Traction Control System may have just saved your life.
If this is happening on dry pavement and normal driving conditions (starting, stopping, or turning), there may be a problem with the system. "False Traction Control" can happen just like a bad wheel sensor causing "False Antilock Mode".
Also check your Owners Manual for more specific information pertaining to your particular vehicle.
The Enhanced Traction System warning light may come on for the following reasons:
If you turn the system off by shifting to SECOND (2) or FIRST (1), the warning light will come on and stay on. To turn the system back on,shift to THIRD (3) or AUTOMATIC OVERDRIVE
If the traction control system is affected by an engine-related problem, the system will turn off and the warning light will come on.
If the Enhanced Traction System warning lightmcomes on and stays on for an extended period of time when the system is turned on, your vehicle needs service. Adjust your driving accordingly..