The first step in troubleshooting the check engine light is to read the fault codes with an obd ii scanner.
2009 ford focus check engine light reset.
One problem related to check engine light on has been reported for the 2009 ford focus.
Please also check out the statistics and reliability analysis of the 2009 ford focus based on all problems reported for the 2009 focus.
Turn on the ignition by pressing the start button without pressing the brake pedal.
This resets the engine s computer system along with the ses light.
Remove the terminal from the battery stud.
If the mechanic forgets to disable the light or if you prefer to make repairs yourself you will need to deactivate the light on your own.
The check engine light in a ford focus is designed to stay on until it has been deactivated by a mechanic at an auto garage.
Ensure that the terminal no longer makes contact with the stud.
You may want this tool if your terminals need cleaning http amzn to 2wpb35s if an auto repair store isn t near by and you ve done your car repair you can.
But if you do not have one available you can often do it without one.
Locate the diagnostics port under the dashboard of your ford.
Wait 15 minutes then replace the terminal on the stud and tighten the bolt using the socket set.
It s still recommended to check the trouble codes first with an obd2 scanner if the check engine light is on.
In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light.
Connect your obd ii scanner into the diagnostics port.
Here are some different ways how you can reset your check engine light.
A check engine light can indicate a broad spectrum of problems with your 2009 ford focus.