r/CarHacking 4d 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 4d ago

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

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0 Upvotes

r/CarHacking 4d 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

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 4d 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 4d ago

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

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1 Upvotes

r/CarHacking 5d 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 5d 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 5d ago

Original Project J1850VPW ↔ CAN Bus Bridge

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14 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 5d 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?


r/CarHacking 5d ago

Scan Tool In need of an OBD1 scanner

0 Upvotes

Does anyone have a link to an obd1 scanner? I have been looking for one for a while and I can’t find one, the obd2 to obd1 connectors don’t work for me, thank you


r/CarHacking 5d ago

Cool Project Find Zbudowałem "darmowe" narzędzie do strojenia dla Bosch EDC15/EDC16 TDI

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1 Upvotes

r/CarHacking 5d ago

Original Project Switch car connector

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1 Upvotes

Hello, can switch wire between this two connector? If so how to de-pin this type of connector, thank you


r/CarHacking 5d ago

LIN Ford focus MK3 headlight switch LIN bus

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24 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 5d ago

Cool Project Find MOPAR COMPUTER ISSUES EXPLAINED

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8 Upvotes

r/CarHacking 5d ago

Scan Tool Honda diagnostics: you need more than a basic OBD2 code reader

0 Upvotes

If you’ve ever plugged a scanner into a Honda with an ABS, SRS or other warning light only to get “no codes found”, you’ve probably already discovered the problem:

A lot of basic OBD2 readers only scratch the surface.

We’ve seen this come up pretty often in Honda communities — people trying to diagnose an airbag/SRS light, ABS/VSA fault, transmission warning or other system issue, but their generic reader can only see engine codes.

So we’ve added advanced Honda diagnostics to Carista.

With the Carista app + compatible scanner, you can now scan supported Honda models for faults across systems including:

  • Engine
  • Transmission
  • ABS / VSA
  • Airbag / SRS
  • Body electronics
  • HVAC
  • and other electronic control units

You can see the actual Honda diagnostic trouble codes (DTCs) stored in those modules and clear/reset them after the underlying issue has been fixed.

No laptop. No HDS setup. Just plug the Carista scanner into the OBD2 port, connect your phone and run a diagnostic.

Obviously, clearing a code isn't the same thing as repairing the fault — if it comes straight back, something still needs attention. The useful part is knowing which module is complaining and what code it is throwing before you start replacing parts or paying someone else to diagnose it.

For anyone searching for a Honda OBD2 scanner that can read ABS, SRS, airbag and manufacturer-specific fault codes, that’s exactly the gap we wanted Carista to fill.

Check if your Honda is supported: https://carista.com/apps/supported-cars/honda

Honda owners here: what’s the weirdest warning light/code you’ve had to chase down?


r/CarHacking 6d ago

Original Project Help correcting Odomoter Bronco big bend 2025

0 Upvotes

Just bought a Bronco Big bend 2025 with digital cluster (Speedo) original part was replaced due to was broken , how can I recalibrate the miles on this car ? I do have obdstar master g3 full , KTP , Lonsdor and im608s , BTW , I’m a licensed Locksmith (NC)


r/CarHacking 6d ago

UDS UDS use

0 Upvotes

So how do I use UDS to communicate with the car?

Like to send read VIN request.

Is there a software to download?

How do I connect to OBD?


r/CarHacking 6d ago

Community Tecdoc database

1 Upvotes

I see something in the mhhauto a tecdoc database. However, i am hesitant to proceed with it. And want to know if someone has used it already. I want to create a open source lookup up for this if possible.


r/CarHacking 6d ago

Key Fob Question: Programing a 2008 Mazda 2 Carkey

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3 Upvotes

r/CarHacking 6d ago

ELM327 HELP REQUEST: Bosch Motronic ME 17.5.20

1 Upvotes

Car: Volkswagen Gol 2023 (Brazilian)
Engine: EA211 1.0 MPI 3-Cylinder 12V (Code: CSEB)
ECU: Bosch Motronic ME 17.5.20
Scanner: Vgate vLinker MC+
Software: Car Scanner (Pro)
Hardware: Android Smartphone

That's the setup I use to monitor the health of my car's parts and sensors.

Car Scanner doesn't have a specific profile for the Gol, so I use the profile for the Up!. It's the most similar and seems to result in the greatest number of sensors displayed, giving me, for example, the engine oil temperature, which the others don't, in addition to general OBD2 sensor information, like the short and long term fuel trims.

It doesn't display everything, however, like, for example, fuel and oil pressure, for which I know the engine has working sensors whose output values are received by the ECU. Being able to monitor both live would be very useful for general diagnosing.

Would adding those sensors as custom sensors to my car's profile in Car Scanner be as simple as typing their PIDs in somewhere once I can figure them out? Or is that information encrypted or something?

Can a PID list of this specific Gol version be found anywhere? Can I somehow scan for that unlisted information with the hardware and software I already have?

All I want is to have access to more information that I know is available in the ECU without having to actually hack the car with DIY hardware and software.

I'd appreciate any tips.

P.S.: I have the service manuals for the vehicle, engine and transmission and all the wiring diagrams I could find relative to my vehicle from Erwin.


r/CarHacking 7d ago

Original Project Update on modernizing my 2010 Silverado with OEM electronics (mainly the radio)

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23 Upvotes

I’ve discovered that as long as the radio is unlocked or has the VIN cleared, any radio pulled from a Lambda platform vehicle will work in my 2010 Silverado plug-and-play. However, I’m looking to go further. There might be some newer GM vehicles with simpler radios (for newer vehicles) that support Apple CarPlay. For instance, the 2017 Chevrolet Trax supports Apple CarPlay, Bluetooth audio streaming, and more. From what I’ve gathered, it operates on the same GMLAN data architecture as my GMT900 Silverado. I’ve already confirmed that the connectors are not the same, but they’re significantly simpler compared to other radios from this GM era. As you can see, the HMI is already connected to the display, just like the GMT900/Lambda radios. Regarding connectors, the setup is similar to the GMT900/Lambda radios. They have the same antenna connector, USB connector, and use two 20-pin connectors, unlike the two 16-pin connectors on the GMT900/Lambda radios. If I could obtain the wiring pinouts, I believe I could connect the correct wires in the right positions, except for missing eight pinouts in total. However, from what I’ve gathered, these radios rarely use every single pinout. My ultimate goal is to have an OEM GM radio that supports Apple CarPlay and functions correctly in my 2010 Silverado. Could anyone confirm my findings or provide me with the correct information, or guide me in the right direction?


r/CarHacking 7d ago

Community Looking for remote ODIS coding – Lane Assist activation on 2026 Škoda Kodiaq ( SFD2)

2 Upvotes

Hi,
I have a 2026 Škoda Kodiaq and I’m looking for someone experienced with ODIS who can do remote/online coding to enable Lane Assist.
The car already has the required front camera/hardware. I’m specifically looking for someone who has experience with the new-generation Kodiaq and current VAG/SFD2 systems.
If you’ve done this successfully, or know someone reliable who provides remote ODIS coding, please let me know.
Thanks!


r/CarHacking 7d ago

CAN BMW X5 G05 shifter CAN info needed

0 Upvotes

Hey! I’m trying to use an OEM BMW X5 G05 electronic shifter as a sim-racing shifter for Beam NG, Etc using an ESP32.

Shifter details:
Brey Automotive
5A08BB5-01
[160466-10](tel:160466-10)
Production: 2020-01-28

Does anyone have CAN/LIN IDs, CAN logs, DBC files or pinouts for this shifter? Mainly looking for the messages for P/R/N/D and M+/M−.


r/CarHacking 7d ago

Multiple Got an Escalade. Looking into protection against electronic theft

1 Upvotes

I bought the Escalade I'd wanted for years. Great feeling, right up until I started reading how often these trucks get targeted. I wanna understand what helps once someone gets past the factory security. Hidden PIN systems caught my attention because the authorization uses buttons already inside the vehicle. From what I understand, the car can start but it won't be driven until the right sequence is entered. I've also read that systems like IGLA work through the vehicle electronics without cutting the factory wiring. For anyone familiar with the technical side, how much protection does that add against electronic theft? I'm mainly interested in what gets blocked and whether the setup changes normal daily use.