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Check Engine Light


Check Engine Light, a warning indicator, illuminates on the dash when an issue occurs within the vehicle's electrical or emissiEngine Light, a warning indicator, illuminates on the dash when an issue occurs within the vehicle's electrical or emissions systems.

 

Check Engine Light, also known as Service Engine Soon, is a warning indicator that illuminates on the dash when an issue occurs. Modern vehicles have a 12-pin connector under the instrument panel near the steering column. To read stored codes, turn the ignition key to ON but do not start the engine. Usually, a jumper wire is inserted into the ground and the diagnostic terminal of the diagnostic connector. The Check Engine or Service Engine Soon light will flash code 12 three times. Then the light will flash each code stored in memory three times, depending on the faults or failures that happened in the vehicle. When there is more than one trouble code, correct the cause of the lowest code first unless directed by the service manual. The technician can retrieve the stored trouble code from the ECM memory. To use the code, the technician finds the chart for that number in the vehicle serEngine Light, also known as Service Engine Soon, is a warning indicator that illuminates on the dash when an issue occurs. Modern vehicles have a 12-pin connector under the instrument panel near the steering column. To read stored codes, turn the ignition key to ON but do not start the engine. Usually, a jumper wire is inserted into the ground and the diagnostic terminal of the diagnostic connector. The Check Engine or Service Engine Soon light will flash code 12 three times. Then the light will flash each code stored in memory three times, depending on the faults or failures that happened in the vehicle. When there is more than one trouble code, correct the cause of the lowest code first unless directed by the service manual. The technician can retrieve the stored trouble code from the ECM memory. To use the code, the technician finds the chart for that number in the vehicle service manual.