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It's possible that the front suspension replacement could have contributed to the ESC malfunction. The ESC system relies on input from various sensors to determine the behavior of the vehicle, including sensors related to the suspension and steering. If these sensors are not functioning correctly or providing incorrect information, it can trigger the ESC and check engine lights to come on.
In this case, I would recommend having a professional mechanic perform a thorough diagnostic to determine the root cause of the issue. They may need to check the wiring and connections related to the front suspension and any sensors involved in the ESC system.
If the problem persists even after a thorough diagnostic, it may be worth reaching out to Hyundai customer service to see if there is any other potential solution for your particular vehicle. It's possible that there is a known issue with the 2006 Sonata that is not covered by the recall but can still be addressed by the manufacturer.
Just because you installed a new part, do not assume it can't be bad. This happens alot with aftermarket parts. When you change just a minor part and a problem develops, good idea to double check both your work and the new parts.
You'll need to have someone scan the engine and body computers to get the trouble codes. The ESC and ABS could be on because of a problem connected to the engine computer, or they could have their own issues in addition to the engine. All three systems work together.
I'm sorry to say that Michael Richardson is incorrect. ESC actually stands for Electronic Stability Control. It monitors the wheels for slippage, and will reduce power (or even apply braking, according to Kia) to a particular wheel if it detects that it has lost traction. For example, say you're driving in the rain and your front passenger wheel hits a puddle and starts to hydroplane. ESC will cut the power to that wheel so that it rolls freely until you get out of the puddle. As it's doing that your ESC light flashes. If you are driving on ice and no wheels have good traction it may stay lit and not allow you to accelerate rapidly because it can control the throttle as well. You can turn off ESC with a button on your dashboard which will result in a yellow ESC Off indicator.
If your ESC Off light is on all the time regardless of the dashboard button or weather conditions, you probably have a problem with your ESC system, which could be as simple as a faulty brake light switch. Kia should be able to diagnose it quickly.
The light will go away on it's own if the problem is solved. The unhooking of the battery doesn't work after 1996. I would get it scanned again to see if you have the same issue, and go from there.
For some reason, the ESC system "thinks" the drive wheels are slipping and it is trying to prevent the tires from spinning.
Take the car to your local Auto Zone and ask them to scan the car for trouble codes, they will do the scan for free. Write the codes down and respond back to this post and we can start to diagnose the problem.
Good luck and let me know.
Regards,
I had an issue where the ABS and ESC lights would go on and wouldn't turn off unless I restarted the car (sometimes they would light up again even if I had restarted). This was because the speed sensor was broken on my back tire. After the dealership replaced it, (under the 36,000 mile warranty) all was good and I have yet to see the lights come back on.
Summary:
Issue: ABS & ESC would not turn off
Solution: Replaced broken speed sensor on tire
I had the problem with the engine light and the ESC light on. At the same time the car would not accelerate. I disconnected and reconnected the battery and works fine now.
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