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it requires an obdII scan tool. some big part stores provide this service for free. call around!
If it is a U.S. car then it is an OBDII compliant vehicle and the codes can be read with an OBDII scan tool.
you can only check it and clearit with an OBDII diagnostic scaner
Using any quality OBDII diagnostic device or OBDII to computer conversion software should be able to tell you the Mass AirFlow sensor outputs.
Check engine codes are generally read with an OBDII reader that connects to a data port under the dash. As far as I know, no cars allow you to check them by pressing buttons on the dash.
I got this code on my corolla 99 the person who verify my car said it's a problem with the gaz valve sensor
Unfortunately, the only way to retrieve trouble codes after 1995 is with the OBDII scanner. The good news is that there are some auto parts stores that will scan it for you free of charge. Or, you can buy a simple OBDII scanner for about $60.
Use a Mercedes specific or OBDII generic scan tool.
A lit Check Engine light indicates there is a malfunction that has been detected and a diagnosis needs to be done with an OBDII scanner to find the problem. If there is no problem, the Check Engine light can be reset either with the OBDII scanner or by disconnecting the negative battery terminal for a couple of minutes. Word of caution: when resetting by disconnecting the battery, the computer's Keep Alive Memory will be erased and the vehicle will run rough for several miles until the computer re-learns the settings.
96 means it's OBDII, so a flashing check engine light means it is misfiring bad and it is threatening to melt the cats.
Under the dashboard in the drivers footwell ... near the bonnet release catch.
The Check Engine Soon (CES), also known as the Service Engine Soon (SES) light, comes on due to an OBDII error code being reported to the vehicle's computer. There are literally hundreds of OBDII engine codes referring the emissions system, engine and transmission, for example. A CES/SES code can range from a minor to potentially catastrophic mechanical/electrical problem and should be scanned immediately.