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Enhanced PID's For mode 22 research

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I am starting to dig into the Mode 22 PIDs that exist.   on the databus using a obdlink mx and torque pro / tera term to ask for data.

 

First thing I want to figure out is how to read DEF quality.  Scan gauge says it is there.   

 

PID is supposed to be A1E2  Data return for DEF quality is located at D in the data string so there should be something at A,B,C and maybe beyond D.  typical -0100% sensors report as just the data item in hex.  

 

The others I am looking at are  I know these all report back values, just no idea what they are yet.  

:unknown 1,:unknown 1,229000,A,0,1000000,,Auto
:unknown 2,:unknown 2,229001,A,0,1000000,,Auto
:unknown 3,:unknown 3,2.29E00,(A*256+B)/435,0,1000000,,Auto
:unknown 4,:unknown 4,2.29E01,(A*256+B)/435,0,1000000,,Auto
:unknown 5,:unknown 5,22A000,A,0,1000000,,Auto
:unknown 6,:unknown 6,22A001,D,0,1000000,,Auto
:unknown 7,:unknown 7,22A004,D,0,1000000,,Auto
:unknown 8,:unknown 8,22A009,A,0,1000000,,Auto
:unknown 9,:unknown 9,22A010,A,0,1000000,,Auto
:unknown 10,:unknown 10,22A024,(A*256+B)/435,0,1000000,,Auto
:unknown 11,:unknown 11,22A040,(C*256+D)/435,0,1000000,,Auto
:unknown 12,:unknown 12,22A051,(A*256+B)/435,0,1000000,,Auto
:unknown 13,:unknown 13,22A064,(A*256+B)/435,0,1000000,,Auto
:unknown 14,:unknown 14,22A0A9,A,0,1000000,,Auto
:unknown 15,:unknown 15,22A0C4,C,0,1000000,,Auto
:unknown 16,:unknown 16,22A0E1,(A*256+B)/435,0,1000000,,Auto
:unknown 17,:unknown 17,22A110,(A*256+B)/435,0,1000000,,Auto
:unknown 18,:unknown 18,22A119,A,0,1000000,,Auto
:unknown 19,:unknown 19,22A131,A,0,1000000,,Auto

Screenshot_20180817-164704.png

Edited by Me78569

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  • Me78569
    Me78569

    unknown 12 pid 22A051 appears to follow TPS, but 1/2 value.   unknown 7 PID 22A004 is baro      

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  • Author

unknown 12 pid 22A051 appears to follow TPS, but 1/2 value.

 

unknown 7 PID 22A004 is baro

 

 

 

    • Like 1

    Interesting, I have dash command.  I'll dig into the PIDs a little too, see if I can make out anything.

    • Author

    well I think I know what the issue is preventing me from getting a response on $22 A1E2.  I need to pass a diagnotic bit to the 7E0 header then pass my 22A1E2.  

     

    Heck if I know what that diagnotic bit is though.

    • Author

    Dunno about it honestly.  

    • Author

    Looks like I can Pass 7DF as a diagnotic command and maybe that will let me in to see a response from the mode 22 stuff.

    Note: 0920 ask for ecm name


     

    Lots of good info.

     

    http://opengarages.org/handbook/ebook/

    Edited by Me78569

    Here to learn. 

    @Me78569 if it would be helpful to borrow my RaceMe, let me know. My 4th gen is doing a lot of sitting, so I wont need it..... at least for now. 

    • Author

    Does your raceme show def quality?  

    • Author

    well 7DF is not the command to unlock the goodness.  I am going to have to connect up the canbus sniffer.

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    Welcome To Mopar1973Man.Com LLC

    We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.