2018 Fusion Owner's Manual

Engine Emission Control

Your vehicle may not pass the I/M test if the service engine soon indicator is on or not working properly (bulb is burned out), or if the OBD-II system has determined that some of the emission control systems have not been properly checked. In this case, the vehicle is not ready for I/M testing. If the vehicle’s engine or transmission has just been serviced, or the battery has recently run down or been replaced, the OBD-II systemmay indicate that the vehicle is not ready for I/M testing. To determine if the vehicle is ready for I/M testing, turn the ignition key to the on position for 15 seconds without cranking the engine. If the service engine soon indicator blinks eight times, it means that the vehicle is not ready for I/M testing; if the service engine soon indicator stays on solid, it means that your vehicle is ready for I/M testing. The OBD-II system checks the emission control system during normal driving. A complete check may take several days. If the vehicle is not ready for I/M testing, you can performthe following driving cycle consisting of mixed city and highway driving: 1. 15 minutes of steady driving on an expressway or highway followed by 20 minutes of stop-and-go drivingwith at least four 30-second idle periods. 2. Allow your vehicle to sit for at least eight hours with the ignition off. Then, start the vehicle and complete the above driving cycle. The vehicle must warm up to its normal operating temperature. Once started, do not turn off the vehicle until the above driving cycle is complete. If the vehicle is still not ready for I/M testing, you need to repeat the above driving cycle.

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