Engine and low trac lights come on
If the Check Engine Light never turned off after the original repair was completed, it is possible that the Check Engine Light was never turned off.
It is also possible that more than one problem existed when the spark plugs were replaced and additional repairs are necessary.
If the Check Engine Light was turned off and came back on shortly after the repair, you could have an intermittent condition and these can be difficult to diagnose. Intermittent conditions may need to worsen before any certified technician will be able to pinpoint the problem.
Contact a certified technician, like one from YourMechanic, who will be able to pinpoint why your Check Engine Light is on.
How to Identify and Fix Common car Problems ?
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When the traction control module is going bad or failing, the most common sign is when the traction control system (TCS) warning indicator light is on in the dashboard. This is an indication that a serious problem exists and should be addressed as soon as possible.
Step One: Disconnect the positive cable from your car battery. Then, hold down the brake pedal to drain the vehicle`s electrical system. This will result in a reset of the car`s central computer. Plug the cable back in to restore power.
One common culprit for this problem is the crankshaft position sensor, which measures the position and speed of the crankshaft. The computer uses the information from this sensor to know when to fire the spark plugs. If the sensor isn`t working, the spark plugs won`t fire, keeping the engine from starting.
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As a technician, I have access to reports from technicians across the country. I could not find any reports of this problem, so diagnosing this will require an experienced tech as this is not a common problem. In addition, this happens at intermittent times making it difficult to recreate. The most challenging part of this diagnosis will be recreating the symptom. I suspect it has something to do with the brake switch circuitry because it only seems to happen when you have your foot on the brake. I would begin my diagnosis there with a wiring diagram and test light in hand. The brake switch, instrument cluster, and environmental controls all interact with each other. Something is crossed either because of a failed module or damaged wiring in a harness.
Aside from making sure the coolant is full, this will not likely leave you on the side of the road. If you take it in to be diagnosed, be prepared for them to spend more time than usual to figure it out. Since it isn’t a key problem, you may need to live with it until it completely fails making it much easier to diagnose. Either way, I do recommend having a certified mechanic diagnose the warning light to make sure there isn’t anything serious going on.
It’s nearly impossible to tamper with the ECU to disable error codes without having multiple mechanical issues exist. However, it is possible that there is a communications issue from the ECU to the dashboard or other electrical monitoring systems. The best way to know for sure is to have a professional mobile mechanic complete an electrical problems inspection first.