You can also reset the check engine light manually by engaging the gas pedal. This method is popularly known as the “Accelerator Pedal Reset Procedure” and involves the steps outlined below. Step 1. Insert the ignition key and do a quarter turn with it so that the ignition turns On, without the engine starting. Step 2. 11. Exhaust Gas Recirculation Valve Failure. The exhaust gas recirculation (EGR) valve regulates exhaust gases to lower nitrogen oxide emissions, improve engine efficiency, and increase fuel economy. An EGR valve can go bad or just get clogged with carbon buildup over time. A check engine light (CEL) indicates problems with your vehicle's emissions system. You can turn it off yourself, but you should also find and fix the problem. Learn how to reset the CEL with or without a scan tool, and how to complete a drive-cycle to reset the readiness monitors. Video Description. A check engine light can indicate a broad spectrum of problems with your 2015 Lincoln MKC. If you have a flashing check engine light, turn off the engine immediately to prevent potential motor damage. Whereas a steady check engine light may mean you merely need to tighten you gas cap next time you stop in order to reset the Jeep Wrangler Check Engine Light Reset (PROCEDURE) All modern jeeps come equipped with a PCM or (Powertrain Control Module) which scans all sensors and signals from components throughout the vehicle. When the PCM detects any problems it sends a code that is displayed in your instrument panel. CtSR. To reset service light on Polaris, follow these steps: 1. Bring your vehicle to a safe place and turn off the ignition to park the vehicle. 2. Press and hold the Mode Override option while turning on the vehicle. 3. Turn the key to the On position and release the Mode Override button. 1. Loose or bad gas cap. It is possible for the check engine light to come on in Spark due to a loose or bad gas cap. The fuel system in modern vehicles is designed to maintain a certain level of pressure, and if the gas cap is not sealing properly, it can cause a leak and disrupt the pressure balance in the system. Step 4 – Reset the check engine light. Leave the scanner connected to the DLC. The scanner will ask if you want to erase all diagnostic results and codes. Select "YES." Put your key in the ignition and turn it to the "ON" position. Do not start the engine. Press enter on the scanner once you've done this. The flashing light often indicates a misfire, which can cause damage to the catalytic converter. When this happens, the engine should be turned off immediately to prevent further damage. 1. Loose or bad gas cap. It is possible for the check engine light to come on in Cobalt due to a loose or bad gas cap. Turn off the ignition in your car. Put on protective glasses and gloves. Pop the hood to access your battery. Look for the negative terminal with a black cap. Loosen the nut, and pull the connector off the battery for 30 to 60 seconds. Put the connector back on the battery and retighten it with a wrench.

how to reset check engine light