Using the DrewTech J2534-I engineering interface

Jaxon Technical Support Specialist Stafford Heights, Australia Posted   Latest  

Hello folks, Scott has encouraged me to get active on the forum, and I thank him for his support, and for creating Diag​.​net

I have purchased a Drewtech Cardaq-M, and downloaded the DrewTech J2534-I engineering interface. 

I would like to: measure, record and assess how a generic scan tool accesses and interacts with any particular vehicle.

Any support or feedback would be appreciated. 

(I am aware that this is a very general question, logically it seems a good place to start the conversation.)

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Randy Analyst
Denver, Colorado
Randy
 

That's not only general, it's extremely difficult to explain via a forum like this. I'll give it a shot but first, I don't use their engineering interface though I have looked at it. I do use the CARDQ-M. My day job consists of a lot of tech support to repair community but in addition, I QA OBD software for the IM program so I am looking at generic communication all the time. To look at the

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Jaxon Technical Support Specialist
Stafford Heights, Australia
Jaxon
 

Hello Randy, thank you for your response. Similar to what you are describing with your IM lane software debugging, I would like to create a hex format logfile. The first level of this would be how any generic scan tool will connect and interrogate the ECM to obtain a VIN. I need to firstly create a baseline, to reference my testing data to. In my region, Im thinking that this will likely be

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Randy Analyst
Denver, Colorado
Randy
 

The request for OBD VIN is straght forward. We just got done with our latest fix on that issue and it seems to be working. The basics are it’s a mode $09 info type 2 request but is only required on 2005 and later us built vehicles With CARB OBD. It can be stored on any OBD module. You will want to make multiple requests. After that, I would need to know what vehicles and protocols you are having

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Jaxon Technical Support Specialist
Stafford Heights, Australia
Jaxon
 

Randy, this seems to be on point. RE: What am I trying to do, and on what vehicle: I am working on debugging a scan tool on Australian vehicles. We have close to 76 OEM's selling vehicles here in Australia. When I first started this project I noticed that many OBD functions are not available in Australia. For example on a lot of vehicles when OBD is accessed from a scan tool there will an

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Jaxon Technical Support Specialist
Stafford Heights, Australia
Jaxon
 

Update* I have spoken with Mario @ RA consulting, he cant guarantee that his software will function in the Australian environment. He is arranging for a demo version of the software, for a fortnight. Also, the tool only functions on OBD protocols. This brings up the question, will the DrewTech software read non-OBD, like the pin 9 GM: 8192 bit/s ALDL? Are there only DrewTech folks here that can

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Bob Business Development Manager
Ann Arbor, Michigan
Bob
   

The Cardaq+2, Cardaq+3, GM Mongoose Pro II and Cardaq M all support GM UART, which is a -2 protocol addition. I try not to use the acromym ALDL (Assembly Line Data Link) in discussions on OBDII because that term technically refers to a GM OBD1 12 pin connector. sae​.​org/standards/cont… Connectivity to UART would be dependent on the software you are utilizing.

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Jaxon Technical Support Specialist
Stafford Heights, Australia
Jaxon
   

Hello Bob, thank you. I hear you describe the ALDL as the early GM 12 Pin connector. I have a GM Mongoose Pro II, and a Cardaq - M unit. I also have a Mongoose FORD unit, but I haven't found a use for it? I have a copy of the DrewTech J2534-I software, but this isn't the software that you are referring to? Are you referring to the software that I am using to interrogate the vehicle? Also…

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Bob Business Development Manager
Ann Arbor, Michigan
Bob
   

The DT J2534-1 software is for primarily -1 protocols. It appears that the common -2 ones were added to the supported list (like SW CAN) and since GM is no longer installing UART (and hasn't for 10+ years) my guess is that was not included in the software connectivity. I was referring specifically to the software you are using to communicate with the vehicle. Your hardware supports UART, you

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Jaxon Technical Support Specialist
Stafford Heights, Australia
Jaxon
 

Hello Bob, I have not used Tech2WIN, however I have a Tech 2 here. I hear you say that this J2534-i program is basic. Is it possible that you might be able to walk me through it? In context, an overview, introduction to menus, functions and usage.?

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Scott Manager
Claremont, California
Scott
 

Hi Jaxon, Bob had me share a document covering the Tech2Win challenges within his response above.

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Jaxon Technical Support Specialist
Stafford Heights, Australia
Jaxon
 

Hi Scott, and Bob, thank you. Ill look into that after classes this week.

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Andrew Technician
Commack, New York
Andrew
 

About a year ago it seems emissions testing was a hot issue: theguardian​.​com/environment/20… I don't know what happened since then but what is the current state of vehicle emissions legislation, testing, compliance, enforcement, etc in Australia? If you are interested in troubleshooting the functions of Vehicle Onboard Diagnostics I would try to engage with local authorities.

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Jaxon Technical Support Specialist
Stafford Heights, Australia
Jaxon
 

Hi Andrew, thank you for your input. To answer your question, we have very little in the way of vehicle emissions legislation, testing, compliance, enforcement. I have held an examiners licence in Queensland for car, motorcycle and trailers. This is an except from the official Code of Practice - Vehicle Inspection Guidelines: June 2018 (Queensland, Australia) So, that is all the law has to

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