1998 XC70 Code 612

AlanKot · Post by **AlanKot** » 11 Oct 2016, 19:37

Hey guys,

First post but I've been reading your posts for a while. I've been bringing my XC70 back to life (previous owner didn't take good care of it). I just replaced my PCV system and today a got a check engine light and the reader says it's code 612. Is that in any way related to me working on the PCV system? I reconnected all of the vacuum lines and cleaned the tcv nipple. Thanks for any advice.

Alan

Post by **Ozark Lee** » 11 Oct 2016, 21:04

A code 612 doesn't really make any sense. What code reader are you using?

Typically the error codes have a Pxxxx format where the xxxx are numbers and they are 4 digit.

Some codes readers will give ECM codes but they are different than P codes. If you can clarify the code and the format we will take a crack at getting you an answer.

...Lee

AlanKot · Post by **AlanKot** » 11 Oct 2016, 23:33

I'm using an Autel EU702 code reader and it's an engine code. Thanks.

Post by **abscate** » 12 Oct 2016, 04:15

Snap a picture of the error code and post please. I scanned both DTC and ECM code tables but don't find 612 there

AlanKot · Post by **AlanKot** » 12 Oct 2016, 08:55

My reader crapped out on me but it said Code 612 Tabk System. I'm going to try and get it going again and will take a picture. Thanks.

AlanKot · Post by **AlanKot** » 12 Oct 2016, 09:45

I was able to get the reader to work again and took some pictures. Thanks for your help.

Alan

Post by **abscate** » 12 Oct 2016, 09:58

I think you are in the diagnostics system and its got the wrong software for Volvo

Go back to the OBD menu and read the DTC codes and see if you can pull out a Pxxxx where xxxx are numbers from that menu

AlanKot · Post by **AlanKot** » 19 Oct 2016, 20:37

After doing some research it seems that code 612 is the equivalent to generic code 0442 which is either the j-hose or the gas cap. I ordered both and once I replace I will report back. Thanks again!
Alan

AlanKot · Post by **AlanKot** » 09 Dec 2016, 09:52

Just wanted to report that I changed the gas cap and the issue seems to be resolved. Thanks again guys.

Post by **abscate** » 09 Dec 2016, 16:40

I think OBD Codes might be different in UK based on this thread or the AUTEL code map might be different