Put the key in the ignition, turn it on and then off. The very next second, repeat the process. Repeat once more to complete three times in a row. Put the key again the fourth time and start the car. Drive for a while to see if the light turns off or not. This method proves effective in most cases.
I had the battery removed for over an hour while I replaced the exhaust and the check engine light came back on immediately upon turning the key to the run position. How do I clear the light? Universal reset (disconnect and touch the battery cables together)?
Working carefully, loosen the negative terminal with a wrench. Pull the cable off of the terminal, and hold it aside for about a minute. Reconnect the negative cable tightly, and make sure that everything is back in place. This process should cause your check engine light to go off, however, you may need to drive for 20-40 miles before the

Mercedes Check Engine Light DIY. Mercedes Engine Light ON? This Video Will Show You How-To Diagnose the Fault and Carry Out a Mercedes Benz Check Engine Ligh

Step 5. Verify that the Check Engine light has gone out on the instrument panel. References. The Check Engine light on your Ford Crown Victoria indicates a problem with your vehicle's emissions control system. The Check Engine light comes on as a result of the Crown Victoria's computer, called an ECU, generating a trouble code. . 424 108 417 423 202 233 482 376

how to reset check engine light