P1117 Error code

P1117 -> 02 Sensor Heater Circuit (Downstream Cat.) (Bank 1, Sensor 2) Short to Ground (min)
HTH
Emanuele
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Emanuele:

That's great you know the codes, thanks for posting this.

Would you happen to have a list of the codes? They have never been posted for the 456's on this site and have not been able to find them anywhere. A lot of us would be greatful.

Thanks.
Alberto

 

Unfortunately I have only a few codes that a technician told me. The funny thing is that my 550 has a check engine with an error code that is unknow even in the shop! They suggest me to replace the ECU's ($$$)
Emanuele

 

Emanuele:
"Replace the ECU" is the solution to all problems when they don't know what it is. One way to check is to swap the ECU's from one side to the other and see if the error code follows the ECU or not. If not, it's something else most likely. If it does, then it probably is the ECU.

Any codes you can post would be helpful.

Best,
Alberto