OBD-2 Input to the PIC

[skimask]

Yes, the chip is designed to be used with something as simple as hyperterminal. No special software required.

I'm using an ELM327, got a few PCBs I designed on the way. Chip works like a champ and the 'shareware' that's out there works great too. Lots of software to choose from, just have to pick whichever one fits your wants/needs.

[Ioannis]

Can one use the OBD-II to, say, lock or unclock the doors, or open - close the windows or control other electric devices?

Ioannis

[Archangel]

Can one use the OBD-II to, say, lock or unclock the doors, or open - close the windows or control other electric devices?

Ioannis

The only tester I've seen which will do all that is the Star tester ford uses, only $3500 or so, My MT2500 won't do all that, at least with the older software I have, maybe the newest updated . . . I doubt it though.

[Ioannis]

Once I saw a car alarm that would do all the above. It may used the can-bus of the car for that purpose. Sure it used a 18F series controller.

Ioannis

[skimask]

Once I saw a car alarm that would do all the above. It may used the can-bus of the car for that purpose. Sure it used a 18F series controller.

Ioannis

I wouldn't doubt you can use the CAN bus in a vehicle to control all of that and more. Problem is getting your hands on the codes/protocol to handle that. I'd bet that stuff would cost a load of $$$...unless it's on the net somewhere. I haven't found anything like that beyond generic troubleshooting type stuff so far...been searching off and on for a couple of years now...

[Ioannis]

This kind of info's are well kept secrets and are different for each type of car. I will try to find that guy that had the alarm systems. Are interested in a specific car to look?

Ioannis

[DynamoBen]

Can one use the OBD-II to, say, lock or unclock the doors, or open - close the windows or control other electric devices?

Ioannis

I recently helped another forum member create such a project, use the search above.

This kind of info's are well kept secrets and are different for each type of car. I will try to find that guy that had the alarm systems. Are interested in a specific car to look?

It’s not really, if you have a copy of the standard its in there. If you're creative you could hook up the Elm device to the car and start capturing codes.

BTW if you email Elm they will tell you that they don't support this type of interaction. That being said I've seen it done and it works, you really have to educate yourself on how the standard works and the different settings in the Elm chip.

[Ioannis]

OK. Thanks. I'll check it. I thought that only CAN-Bus was meant to do such "dangerous" and "wild" things on the car, not the more "innocent" ODB known to be a diagnostic tool.

Thanks again,
Ioannis

[Acetronics2]

Hi, Ioannis ...

My car is a " quite fully " computerized one ...

and , If I want to buy a new key, I MUST go to the dedicated garage ...

You know why ???

All the new key logging is made being connected to the OBD plug ... YESSS !!!

I suppose you understand what this mean ... and some functions do not have to be explained on the Web ... or at your own risks ( There's a superb .444 cal. 94' model Winchester repeating gun home ... for your info !!! )

The answer to your doors, glasses ...etc, control is YES ( but may be not with all car models ...)

Regards

Alain

[Ioannis]

I think you misunderstood my position. I was talking about a central control unit to control main functions of the electric devices in a car while being able to inform the driver about faults.

For example to power on the Heater in the seats, lock doors by remote control without intervention to the electrical connections, etc. My job is not to steal cars! I already have lost a Honda Civic VTi because I did not protect it fully... :-(

Now we developed a positioning system with GPS-GSM-GPRS to protect any moving object, car, boat etc. Lesson learned.

Anyway thanks.

Ioannis

[Acetronics2]

Hi, Ioannis

I know you for a while and understand you're honest ... of course !!!

But you're not the only one on the line ... the problem is here.

I also owned a 1.6 i Civic ( 130 PS ... no VTEC ) for 15 Years ... and the best antitheft system I found is to cut the Starter relay wire ... of course, a simple radio switch re-enabled the line as wanted !!! ( an old Veglia alarm system dating 1981 ...) ...
Doesn't keep from using a heli to lift the car ... I admit ...

Now, with 2 children ( and a wife ...) It's become a 2.0l Accord !!!

Ok, back to us ...

I 've read a bit about ( Laughs ...) and discovered you can access all the functions physically linked to the OBD plug ... as well as engine, anti-theft, seat heating, windows shutting ...
All those functions can be read ( and data modified ...danger here !!!) from the dedicated terminal !!!
It was just planned at first for easy maintenance and diagnose at the garage ...

Those function codes are simply called "reserved" in the standard coding tables ( those you can freely download ...) and belong to constructors.


I'll make you cry a bit, now ...

I bought a 2nd hand 2004' 1600 Civic, 4 doors for my wife ... and of course, less than a week later, she forgot the unique key inside !!!

Took me less than 5 Minutes to re-open it ... without damaging anything !!!

Understand, if I had been the thief with my Obd terminal ... the car had been started in seconds ...

The simplest anti theft will here be the best ... Engine not starting !!!

Alain