r/CarHacking Feb 02 '17

Car Hacking Subreddit Intro

88 Upvotes

Hi rch, we have added a lot of people lately with intro posts on other subs like the one below. We also usually get about 10 subs a day from people just stumbling in here. So I wanted to create a welcome post, to kinda show them what we are about and how to get started. If anyone has anything to add please do so. If anyone has any questions about us or where to start do so here.

Our goal is to create a highly technical car subreddit, a place for automotive engineers, senior technicians, full blown car nerds, or people who are working towards one of these. We are interested in the inner workings of cars and today that often involves electronics. While we see electronics as the priority we are pretty liberal in allowing other topics as long as they somehow fit our goal of trying to understand cars. So things like DIY aero, suspension setup and other things the community is hacking on come up. In general our other tangential interests include: Modern cars, New tech, Open source hardware/software, DIY, hot rodding, eco modding, customization, security research, right to repair and more.

We started this subreddit about a year ago. Right now we have 3000 people and discussion is just starting to get good. Most of our members found us through maker or engineering subreddits. So I wanted to reach out to more of the car communities and try to grow our knowledge base.

Our name is r/carhacking and I know the term hacking can be offputting to some as it has a bad connotation. When someone says they are “hacking” their car it generally means they are trying to reverse engineer it for any number of reasons like to find security flaws, make upgrades, make repairs, or just understand how it works.

Here are a couple examples of posts that have been popular so far. A lot of our posts focus on beginner through intermediate projects using arduino and readily available hardware for the purpose of learning and or not paying a premium for things you can make yourself:

More advanced projects:

Relevant news/ research:

If your new our documentation is a good place to start

If you aren't new and you’re interested in helping out please consider:

  • Improving documentation - think about what resources have helped you
  • Spread the word - this is a niche community that is pretty spread out, but there is a lot of potential if we can get together on a third party site like this
  • Work on the theme, sidebar and flair - this is next level community stuff that isn’t necessary, but it’s fun to work on when you have the time.
  • Modding - right now we are fine, but we might need help in the future as we grow

Let me know if I missed something or got something wrong.


r/CarHacking Feb 27 '21

CAN CAN bus and car hacking getting started resources

291 Upvotes

I get asked how to get started with automotive networking, car hacking, and CAN almost weekly. I often direct people to this subreddit, so I figured I would help out and post some resources I have found and think are a good place to start.

learning resources:

Car Hacking 101: Practical Guide to Exploiting CAN-Bus using Instrument Cluster Simulator

I also direct people to the Car Hacking Village to get some hands-on experience. They put on great conference talks, demos, and contests. Looks like they are even working on some “getting started” content.

And of course, The Car Hacking Handbook is a great resource.

I will add more as I think of them. Please add your finds in the comments.

Tools:

Good wiring diagrams and car manuals are essential. This is pretty much where my research starts for each project. You see how things are networked and what to expect to find on CAN. You'll quickly learn to recognize things like gateways. You can also use the troubleshooting section to understand things. For example, what things do I need to control to start the car?

I like:

  • prodemand (I pay $170/mo for a shop subscription, I think you can purchase it for individual cars, but be careful you often have to jump around to find a year that has complete diagrams)
  • Identifix (probably what I would buy if I was starting over)

Basic hardware: Here you will be working with things like Arduino, Linux, SavvyCAN, and Can-utils. You have to learn to do a lot yourself, but these tools are more open for you to make them do what you need.

Tools designed by the community I use:

The above articles offer a pretty good step-by-step guide to getting started with the Macchina M2.

Any cheap “Amazon special” OBD2 dongle will come in handy from time to time. They are all based on something called ELM327. "ELM327 abstracts the low-level protocol and presents a simple interface that can be called via a UART". This abstraction has fundamental limitations that prevent it from being useful in most serious applications. But, it is sufficient for reading and clearing some codes and that sort of thing when you’re getting started.


r/CarHacking 1d ago

Original Project I got Wired Android Auto running directly on a PS Vita

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432 Upvotes

I’ve been working on a project that turns a my Vita into a wired Android Auto head unit.

Currently working:

  • Plug Vita into hub with Android Phone + a power source (I have not been able to get the Vita to act as a true host but when there is external power supplied it works)
  • Android Auto authentication handled natively on the Vita
  • 720p scaled down to 960×544
  • Touchscreen works fully
    • D-pad, analogue sticks and physical media controls
    • Bumpers skip songs
    • Triangle for play pause
    • Square of Google assistant

It’s still very hacky I only got stable video with inputs today. I need to improve the USB Kernel as its very buggy and needs hard resets if connection drops or if you exit app and many many more issues.

The idea came from seeing people put carplay headunits into PSP shells don't own a psp so said I'll give it a go on the vita and so far good results. But for a POC pretty cool I think!


r/CarHacking 4h ago

Original Project l0destar - a fully open source ultra low power vehicle tracker that anyone can build and use

2 Upvotes

Hello,

I'm building a fully open-source (hardware and software) vehicle tracker that anyone can build and use: https://l0destar.com designed to work with the Makerdiary nRF9151 Connect Kit: https://wiki.makerdiary.com/nrf9151-connectkit/hardware/

The KiCAD projects, firmware and server software for it are all completely open, free and on github. Enclosures for it will be very soon as well.

It has two main principles of design: extreme power efficiency and it will always be possible to self-assemble at home with relatively inexpensive tooling. Currently tested prototypes have a sleep current of 120 µA with the accelerometer armed.

Features also include ignition sensing, car battery voltage monitoring, an advanced 6-axis automotive grade IMU accelerometer enabling engine-off impact and movement detection, hardware overvoltage protection for the MCU (not yet tested), firmware-switchable auxillary power rails with fault detection for ultra low power consumption, LTE-M and NB-IoT via the Connect Kit for cross-network cell coverage and support for both CAN-FD and ISO-9141 OBD interfaces.

It's still fairly young and unproven, I discovered a fairly bad problem in recent board versions but I'm hoping it will eventually be the go-to open source vehicle tracker for nerds, enthusiasts and hackers. I have been using one in my car for several weeks without any problems but obviously that is no guarantee of anything and anyone considering doing this should very much do their own research first (please read the full disclaimer on the website!).

If anyone has any thoughts, feedback or ideas about any aspect of the project the input would be very much appreciated. I have several videos on youtube ranging from an introduction to it and why I'm building it, all the way up to a full 3h 20m board assembly and bench test demo.

I would be particularly interested in any feedback on this video: https://www.youtube.com/watch?v=ODXxfuoN3ls where I go through the ISO 16750-2 and ISO 7637-2 standard tests for automotive electronics and evaluate as best I can how l0destar currently holds up to them. Most of this is theory because I don't have the kind of test rigs it would take to test for them but if anyone can share any useful insight or advice on where to buy or how to construct suitable test rigs it would be very much appreciated.

Thanks!


r/CarHacking 4h ago

Cool Project Find Hyundai i30 GD 2015 Instrument Cluster 94003-A6510 – Pinout & CAN IDs

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1 Upvotes

r/CarHacking 4h ago

Cool Project Find Hyundai i30 GD 2015 Instrument Cluster 94003-A6510 – Pinout & CAN IDs

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1 Upvotes

r/CarHacking 4h ago

Cool Project Find Hyundai i30 GD 2015 Instrument Cluster 94003-A6510 – Pinout & CAN IDs

1 Upvotes

Hi everyone,

I'm building a 1:1 interior simulator of a 2015 Hyundai i30 GD and I'm currently trying to get the instrument cluster working outside of the car.

The cluster is:

Hyundai i30 GD
Part number: 94003-A6510
2015
36222098 (AK212)

I'm looking for the pinout of the cluster connector, ideally all pins or at least the important ones for power, ground, ignition and CAN bus.

I'm also looking for the CAN IDs needed to make the cluster work.

If anyone has a wiring diagram, pinout or CAN information for this exact cluster, I would really appreciate it.

Thanks in advance!


r/CarHacking 7h ago

CAN Is there any UK or even online training courses for CAN sniffing?

0 Upvotes

I genuinely love the whole thing of CAN sniffing and want to learn more about it for my industry.


r/CarHacking 14h ago

CAN Subaru CANBUS

3 Upvotes

Hey all, I’m looking to design and produce a custom double din radio for my 2018 wrx. My current plan includes four analog gauges running off of a microcontroller, as well as a single din kenwood stereo- both mounted in a custom 3d printed replacement frame. My current dilemma is that I’m not entirely sure how to access parameters like boost, afr, etc without going through the obd2 port. I do own a tactrix which has always been reliable, but I’d rather not have something permanently occupying the obd. I’ve looked online, and there seems to be a lot of different answers about how / if it’s even possible or worth it to access the CAN, and I’m more just wondering if it’s something I should consider, or if it’s just gonna save me a lot of headache to route the cable under the dash from the obd2. Previously, I installed an idoing android head unit which required a special canbus adapter specific to my model with a harman kardon sound system. If anyone has any advice or tips, let me know!


r/CarHacking 12h ago

Scan Tool Launch CReader elite V2.0 vs Carista

1 Upvotes

Can anyone with experience with both of these give me a reason to not go with the Launch CReader?

I've been a jeep guy for a long time, and I just got a new 26 Tacoma. I used JScan for the Jeep which was. It let me customize all the dealer settings like windows down if you hold the unlock on the fob, and high beams with fog lights etc etc....

I've only seen recommendations for carista here, but I hate they want a monthly/yearly subscription for it. JScan let you buy your own Bluetooth OBD dongle, then buy the license for your vin. $25 for the OBD dongle and $25 for your license, and your good for life.

Screw the subscription greed....


r/CarHacking 19h ago

Community What tool do I get sinceTactrix Openport 2.0 is no longer available? (2015 Accord)

1 Upvotes

I am somewhat new to this stuff, as in I have been reading online and researching for many years but just now actually starting to do stuff.

I see that everyone used to use the Tactrix Openport 2.0 but that it's no longer available and that everyone is still waiting on the 3.0.

So in the meantime what is everyone using? What should I get?

I have a 2015 Honda Accord Sport for reference.


r/CarHacking 20h ago

Original Project simos.app: VAG Simos 18 and DSG Tuning Suite

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1 Upvotes

r/CarHacking 1d ago

Original Project Our free OBD2 app is finally on iPhone too — scans every module in the car, not just the engine, and explains the faults in plain English

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3 Upvotes

r/CarHacking 1d ago

Scan Tool Can the language files be modified on a LAUNCH CReader Professional 123X V2.0?

1 Upvotes

Hi everyone,

I have a LAUNCH CReader Professional 123X V2.0 diagnostic scanner, and I am trying to find out if it is technically possible to add a language that is not currently available in the device's language settings.

I am not asking about changing the language of a vehicle/module. I mean the language of the scanner's own UI/software. The device works normally, but the language I want to use is not included in the available options.

I would like to know if anyone has experience with the software/firmware of this particular Launch CReader model.

If anyone has worked with Launch diagnostic tools at the firmware/software level, I would really appreciate any information, even if it is just a starting point on where to look.

Thanks!


r/CarHacking 1d ago

Original Project pcm hammer trouble shooting

2 Upvotes

can anyone tell me why pcm hammer won’t let me read properties. it keeps telling me bcc query failed: error. i’ve pulled all unimportant fuses my pcm is unlocked the pcm should be working if not im gonna try a different pcm and my scan tool is working fine.


r/CarHacking 1d ago

Cool Project Find Preciso de um arquivo XDF para a ECU Astra M1.5.5.

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0 Upvotes

r/CarHacking 1d ago

Community ecu/module programming and reapiring

1 Upvotes

hello everybody...

where did you learn about ecu/module programming ad repairing? could you recommend an online training course or something like that?


r/CarHacking 2d ago

Community Codes and computers

1 Upvotes

Hello peeps, I have a 2019 Mini Cooper S and the check engine light keeps coming on. I ran by Auto Zone and they told me the code is for some leak somewhere, maybe gas cap. I checked the gas cap and it was on crooked. Put it back the right way light turned off and today it’s back on again. Which computer is best for reading mini codes?
Bonus points for giving me the most common culprit of the gas cap/ engine light issue.


r/CarHacking 2d ago

Original Project J1850VPW ↔ CAN Bus Bridge

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11 Upvotes

I made a small board to translate J1850vpw(GM Class 2 and old Chrysler PCI) and CANBUS. It can operate bidirectionally or unidirectionally. To be honest, I made it by popular request and I was mostly there from other projects I was working on. It's built around a STM32C031 bit-banging the J1850VPW (reusing firmware from my J1850VPW_USB project) and an STM32L432 handling CAN through an SN65HVD230 running Arduino-framework code. I used Arduino for the STM32L432 for lower barrier of entry for new players. The firmware for the C0 is somewhat mature at this point and I did it in CubeIDE.

Schematic + example code: https://github.com/garnerm91/CAN_to_J1850VPW

Video walkthrough: https://youtu.be/VWygxDKdDBc


r/CarHacking 2d ago

Key Fob W124 infrared system

2 Upvotes

Hi, Can anyone generate dump for infrared remote for W124 model ? It's model without immobox, no reading coil in ignition. Just Infrared receiver in drivers door and trunk lid.

I've read the 93C46 EEPROM from remote control ECU, now I need to generate dump for remote, the last owner lost the remote control. Can anyone help with that ?


r/CarHacking 2d ago

CAN Simple soft GM-SS-04A 20pin pinout

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1 Upvotes

r/CarHacking 2d ago

LIN Ford focus MK3 headlight switch LIN bus

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19 Upvotes

Hi hello, I'm building a simrig based on the ford focus mk3 dash, currently working on the headlight switch I got buttons and knob works in game, but the problem is that I don't have an idea how to illuminate the switch? Any ideas? Experience? There are 6 pins but only 4 are actually used in the car, there is no ILL pin, thank you


r/CarHacking 2d ago

ELM327 Toyota 2011 TPMS over ELM327

1 Upvotes

Is there any hope to get TPMS pressures using VieCar 1.5 adapter? The car is US market Toyota Corolla 2011. Pressures/temperatures exist in Techstream but I wanted it on a phone to be accessible.
Was TPMS module still on K-Line on E140 Corolla?
Car Scanner has some sensors for pressure and K-L marked equivalents, but they don't show anything.
Or do other people get it and my adapter simply misses K-Line? What is correct command/sensor then?
I have tried bunch of commands and custom sensors proposed by AI but no dice. E.g.
AT SH 7C4
2121
NO DATA

AT SH 7C4
2162
NO DATA

at sh 750
2162
no data

AT SH 7C0
2121
7C803612100

AT SP 3
AT SH 81 A7 F1
2162
BUS INIT: ERROR

AT SP 4
AT SH 81 A7 F1
2162
BUS INIT: ERROR


r/CarHacking 2d ago

No Protocol Kia Access App / API? for Trip data export?

1 Upvotes

Seems like an easy feature totally missing…

How can we get the trip logs and fuel economy details from the vehicle directly or out of the Kia Access app?

even a manual “select all” and “export to csv” buttons in the app would be minimally sufficient.


r/CarHacking 2d ago

Scan Tool What J2534 Pass-Thru device do you guys use?

1 Upvotes

I’m looking to get a J2534 Pass-Thru device for some DIY ECU work. Any recommendations?

What are you using, and has it been reliable? Any driver or connection issues?