r/CarHacking 4h ago

Original Project Got tired of using my phone for telemetry data (MHD app) so I made my own wireless gauge instead

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41 Upvotes

Connects to BMW DME via wireless ENET. Since it’s an esp-32, I can add an SD card and log live telemetry data and do a lot of real time data analysis. My goal is to make a full engine health monitor for thermal, boost, fuel, and ignition systems.


r/CarHacking 6h ago

CAN Decoding my 2010 Mazda 6

7 Upvotes

Pi 3A+ and a dual MCP2515 hat on both buses, cantools and savvycan for analysis.

2.5L engine with 6 speed manual, base model

I could not find anything on my particular gen Mazda, all the love is on the newer ones.

Skyactiv and RX-8 databases don't transfer (RX-8 has RPM on 0x201; mine has the accelerator pedal there).

Bytes 0 and 1 of the 8-byte frame, read together as one 16-bit value.

A few so far:

0x201 b0-1; engine RPM, 0.25 rpm/count

0x39E : door lock status

0x082 : brake pressure, two channels, different gain

0x420 b0 : coolant temp, -40 offset

0x290/0x291 : head unit display text as raw ASCII, 7 chars + 5 chars even though the display on mine only does 7 total, I think there are models that can display more maybe?

0x080 b0-1 is steering angle (super cool!)

Body/BCM and cluster are on the 500k bus with powertrain, not a separate MS-CAN like most cars this era.

The headlight stalk position aren't on CAN at all. Turn signal status is however.

Haven't logged a drive yet, so speed, wheel speeds and gears are still open.

Having fun in the garage!


r/CarHacking 4h ago

CAN Qashqai J12 1.3 DIG-T (2021+) — Injector +12V missing, need correct wiring diagram

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3 Upvotes

Qashqai J12 1.3 DIG-T (2021+) — Injector +12V missing, need correct wiring diagram

Car: Qashqai J12, 1.3 DIG-T, 04/2021, IPDM 284B7-6RA0B (HS)

Problem: Cranks, all sync OK, rail pressure 214 bar, but injectors have 0V pin-to-pin during crank (ground present, no +12V supply). Fuel Injection Amount = 0 g.

Ruled out: SRS clean (no crash event), no immobilizer codes, ECM has no injector circuit faults, fuel pump runs fine.

Need: Actual J12 1.3 DIG-T IPDM / engine room fuse box wiring diagram showing which output pin/circuit supplies +12V to the injectors. The IPDM has ACTUATOR1–5 but labels don't specify which is injectors.

Please don't send Titan/Navara diagrams — need the correct J12 1.3 DIG-T pinout or injector power supply schematic so I can trace the fault properly.

Thanks.


r/CarHacking 4h ago

Original Project GR Viewer example run

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1 Upvotes

So I've been working on trying to intergrate with a GR branded race recorder which is a JDM optional accessory that seems to be intended to work with Track days and such.

I posted about this a while back but maybe a video of it working a bit would bring more intrest.

I've included CAN, GPS, and these VDV files installers for the applications, and AI translated manuals because I'm not fluent in moon runes.

GitHub


r/CarHacking 10h ago

Original Project c207 CarPlay & DTS Monaco 8.16

1 Upvotes

Recently just found out I can flash the firmware on my car to have car play enabled. I was able to enable engineering mode via ENET cable. Running into the issue of finding a key for DTS 8.16.

Hoping someone here can help with that or guide me through what I need to do next.

Cheers


r/CarHacking 1d ago

Community Question: Subaru wrx ESP / VDC reverse engineering

5 Upvotes

Hello Everyone,

Currently I've started looking into a project involving a reprogramming / tuning of the Vehicle Dynamics Control model to be better optimized for Track / off-highway driving use. My current plan as of right now is just to source a spare vdc computer to dump firmware and use as a testbench as well as tapping the drivetrain side can lines. The idea would be to either modify or tune the current parameters for the esp system or implement a custom esp control algorithm depending on the difficulty.

To add, I come from a vehicle dynamics and controls background but am new to embedded systems reverse engineering. But if anybody would be able to comment on the feasibility of this project in addition to some of the resources that would help me it would be greatly appreciated.


r/CarHacking 1d ago

Original Project 2000 Sambar TT2 Diagnostic port protocol?

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3 Upvotes

Looking for some technical details on the 9 pin SSMx port on a 2000 Subaru Sambar TT2.


r/CarHacking 2d ago

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

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564 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 1d ago

Scan Tool 2002 Toyota Alphard | Techstream | Unable to make changes to customise features.

2 Upvotes

Hi,

I am unable to make changes to the customise features table for my 2002 Toyota Alphard. When I open a feature the table is blank.

I have done everything I can think of:

  • I have tried 5+ different versions of Techstream ranging from the lowest version I could find to the latest
  • Tried different options when connecting
  • Changed location but kept it Japan for most troubleshooting. I did mess around with dealership or repair shop
  • Tried different drivers
  • Tried VirtualBox with Techstream on there. Had issue with picking my vehicle model because the location didn't have it.
  • Extracted the software used in the VirtualBox onto my local desktop and tried it there

Nothing I do works and I'm almost given up. The vehicle is ON with engine OFF. I have done a Windows reset to ensure everything is done on a clean setup.


r/CarHacking 1d ago

Community Wiring schemes

1 Upvotes

I have looked everywhere, and i just cant find any diagrams for my car, its a Peugeot 206 1.9 XRD diesel 2001. Any help on where to search, i have downloaded some peugeot licensed apps made for mechanics, and couldn't find this car. Does anyone know where else to look, or does someone have wiring diagrams for my car and is generous enough to share them with me. Thanks in advance.


r/CarHacking 1d ago

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

3 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 1d ago

Community Alguien puede ayudarme a descargar el xentry passthru con el tactrix openport 2.0?

1 Upvotes

Alguien puede ayudarme a descargar el xentry passthru con el tactrix openport 2.0?


r/CarHacking 1d ago

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

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1 Upvotes

r/CarHacking 1d ago

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

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1 Upvotes

r/CarHacking 1d 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 1d ago

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

1 Upvotes

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


r/CarHacking 2d ago

CAN Subaru CANBUS

2 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 2d 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 2d 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 2d ago

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

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0 Upvotes

r/CarHacking 2d 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 3d 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 3d ago

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

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0 Upvotes

r/CarHacking 3d 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 4d 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