You need and ODB II reader. They can be purchased at many auto parts store. You may also find that your local auto parts store will plug one in and read the code for you for free.
Try disconnecting battery for 10 mins. If light comes back on have vehicle scanned to determine if there is a problem or have codes "cleared"
Above the gas pedal, under the dash, there is 2 wires with clips that you plug together. Check engine light will flash the codes recorded in the ecu.
If you're having problems with your cruise control, I would suggest that you check into your Subaru's transmission and engine error codes to see what it's returning if anything. Many times the problem with the cruise can be diagnosed by the vehicle itself. The car will not allow the cruise control to function if it knows about a specific problem, which will be given in the error codes. I don't know what year subaru you have, but look into getting both the engine (check engine light) error codes and the transmission (power light) error codes on your Legacy to see what they're returning. My speed sensor was out on my Subaru. Once I found the problem in the error codes, I swapped it out and my cruise worked just great.
most all paint codes are located inside the door jamb on the drivers side front door
You have a problem with the engine controls, have the codes read at the dealer or an auto parts store and make the necessary repairs and the light will go out, or it can be reset by the tech.
clean maf/throttle body with approved cleaner check engine codes fuel filter
you check the system for trouble codes.
Yes, P0700 is a code in the engine computer that tells you to check the trans computer for codes. You check those codes and repair them and P0700 will go away.Yes, P0700 is a code in the engine computer that tells you to check the trans computer for codes. You check those codes and repair them and P0700 will go away.
To check engine light codes one would have to bring your vehicle to a mechanic who can use a computer to check the computer chip that regulates this function.
Auto Zone or Advance Auto Parts will check your codes for free.
Auto Zone will check your engine light codes for FREE...
I use a scan tool.