[Jdcchora]

Anyone knows what to clean the icon of problems on the engine?
I read that turning off the battery positive will do it but can exist another easy way.

Thanks

[Dazzler]

Are you 100% sure there is no ongoing reason it is on? Disconnecting the negative terminal of the battery for at least 30 minutes is probably the best way and not that hard...

[Phil №❶]

Light will most likely come on again, unless you correct the fault condition.

[Shambles]

and it's not that difficult to read the trouble code(s) that will be causing the light to illuminate.

[Jdcchora]

the problem was a power box that i buy into ebay that connects directly to the common rail sensor.
now everytime that i turn on it appears that error..
i also today tried to disconnect the battery (positive pole) for 2 hours but when I start the car again the error stills there.

will the negative pole working with that?

should I try to disconnect the power box and try the battery reset?

[FatBoy]

It is almost certainly the "power box" that is causing the errors.  It is probably causing something that the car's computer isn't expecting, therefore it gives an error code.  I would be removing the power box from the car.

As for the battery, always take off the negative lead first.  Once you have removed the power box, take off the negative lead from the battery and let it sit for 30 minutes.  Do not reconnect the power box at all.

[Jdcchora]

I had already disconnected only the negative pole of the battery removing the box and it as soon as the car turns on it don't appear but after 1 second it turns on.

Looks like it's saved on the centraline..

Maybe I can't remove the error by this way no? Maybe I need to go into the machine to clear the error.

Do I need to disconnect both poles of the battery?

Thanks

[Phil №❶]

See if you can get the error code, then you will be able to find out if it can be corrected easily.

[Jdcchora]

How can I know the error if I don't have a computer to read it? 

[Phil №❶]

Take it to a mechanic. Plug in & read code. With the plug in device, codes can be reset on the spot if the code is not a bad one, that requires mechanical attention. Take about 10 minutes.

[Dazzler]

Take it to a mechanic. Plug in & read code. With the plug in device, codes can be reset on the spot if the code is not a bad one, that requires mechanical attention. Take about 10 minutes.

Or buy a cheap Bluetooth dongle off Ebay  and download an App to read the codes (I don't know the finer details but others on here do)