Does anybody have hardware recommendations to connect via this interface? I would like to do real time monitoring for a bus
Pyobd - a free and open source program for car diagnostics
31–40 of 42 posts
Re: Pyobd - a free and open source program for car diagnostics
#32Earlier quoted context omitted.
because even if I can't or shouldn't fix it, I want to be able to detect what is wrong with it
You can do it with €20k Bosch rig
Re: Pyobd - a free and open source program for car diagnostics
#33How does it compare in completeness to Torque (android app)? And (if anybody knows) how does Torque compare in completeness to the commercial OBD scanners that garages have?
Re: Pyobd - a free and open source program for car diagnostics
#34Earlier quoted context omitted.
> Because it's your car. Until you sell it. Buyer beware, I guess? I agree with you in fact, but pointing out the likely reason why things like airbags might not be "user serviceable".
> Buyer beware, I guess? I don't know how common it is (quite a lot I believe), but in my country (France), you need to provide a certificate of inspection guaranteeing that the car vital systems behave correctly when selling it.
Re: Pyobd - a free and open source program for car diagnostics
#35How does it compare in completeness to Torque (android app)? And (if anybody knows) how does Torque compare in completeness to the commercial OBD scanners that garages have?
There is a misconception in the USA that you can just 'wipe' a car's computer -- not so much. When you wipe the (standard complaint) OBD2 system, it causes the system to run all the verification tests (like an extended BIOS Power On Self Test), and these take several cycles to run. Torque can tell you in seconds if the vehicle passed all the POST verifications.
Torque is terrible for diagnosing vehicle and manufacturer specific problems. Anything past standardized O2 emissions things should prefer the commercial grade, manufacturer specific software.
So, in the case of a Chevy Volt (or any GM vehicle), AC Delco TDS (acdelcotds.net) is great: it can give you in-depth reports on every module in the car.
Re: Pyobd - a free and open source program for car diagnostics
#36We should somehow force (incentivize) car manufacturers to standardize on stuff like this:
https://www.acdelcotds.com/subscriptions (GM / Chevy vehicles) https://app.n.fcawitech.com/wt2/auth/login.html (Chrysler vehicles)
Similar systems exist for your favorite modern (And relevant) car manufacturer.
We need to get car manufacturers to stop producing their own proprietary systems, or at least, implement a standard.
OBD2 is such a small standard which covers emissions, we need the entire car!
Re: Pyobd - a free and open source program for car diagnostics
#37Earlier quoted context omitted.
Why should safety critical systems be able to be modified by a non-professional? Earnest question
Wheel attached to the hub is also a safety critical system , isn't it? If not tighten properly it may lead to a fatal accident. Where should the industry put the line of serviceable vs non-serviceable (by non-professional) parts?
Re: Pyobd - a free and open source program for car diagnostics
#38The real enduring piece, though, was an OBDII simulator; I didn't want to keep going out to my car to work on the logger, and none of the other simulators out there were a) software, and b) supported most of the ELM327/OBDII protocol. So I wrote one.
The website isn't pretty, but if anyone actually wants to learn OBDII programming stuff, the simulator is still, AFAICT, one of the best out there: http://icculus.org/obdgpslogger/obdsim.html
Re: Pyobd - a free and open source program for car diagnostics
#39Earlier quoted context omitted.
> Buyer beware, I guess? I don't know how common it is (quite a lot I believe), but in my country (France), you need to provide a certificate of inspection guaranteeing that the car vital systems behave correctly when selling it.
For better or for worse, there are no such mandatory inspections nor certificates required when selling your car in the USA. Its a common trope/issue that people can often get misled by sellers when buying a vehicle, either by the seller clearing the engine codes or some other shady practice that would keep the car looking good until it drives off the lot
Re: Pyobd - a free and open source program for car diagnostics
#40Newb question, can I use this to change something in the configuration of the car? I have parking sensors that are absolute garbage (overtriggering all the time), and I would like to permanently turn them off. The turn off button works only for a moment.
I also have backup sensors that are garbage. I ended up wiring a rocker switch in the power line for the beeper/beeper control unit. When I’m backing up to connect a trailer now, I can focus on the backup cam/helper person outside without being subject to the constant beep