CAN (Controller Area Network) bus (internal vehicle communications network) is a message-based protocol, designed originally for automotive applications, but can now be found in aerospace and maritime as well. This is a standard which allows different parts within a vehicle to communicate with each ...

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What is the difference between CAN-C and CAN-IHS buses?

When talking about a 2014 Jeep Cherokee, what is the difference between CAN-C and CAN-IHS buses?
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CRC field calculation for CAN 2.0 B

Do you have a practical example on how to calculate the CRC field for CAN 2.0 B?
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2k views

Can a vehicle be harmed with bad inputs via an OBD-2 port?

I bought a cheap (sub $10) ELM 327 Bluetooth clone OBD-2 diagnostic adapter on a local "ebay-style" market where the seller specializes in car diagnostics and has several thousand positive reviews ...
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Since when is CAN bus mandatory for new vehicles?

The CAN bus Wikipedia page states that: CAN bus is one of five protocols used in the on-board diagnostics (OBD)-II vehicle diagnostics standard. The OBD-II standard has been mandatory for all ...
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177 views

Read steering angle data in real time

I need to read vehicle steering angle (front wheel angle) data in real time for a research project that I am involved in. How can I achieve that? What HW and SW do I need for it? So far I can think ...
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91 views

Read vehicle speed data in real time

I need to read vehicle speed (velocity) data in real time for my research project. How can I achieve that? What HW and SW do I need for it? I guess it can be read from CAN bus via OBD2 interface? I ...
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114 views

CAN Bus action list

I have an ELM327 Bluetooth, which I'm linking to ubuntu powered PC. My end goal is to install a raspberry pi into the car and have it automate things like automatically opening the roof and locking ...
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109 views

Scanning CANBUS [duplicate]

I am in search for a method of scanning the CAN on my car using a cheap ELM327 chip. I can query the ECU (made by Denso) without issue, however when I attempt to set the ELM327 scanner into ...
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171 views

Remote Car Climate Controller

I am investigating the possibility of monitoring and controlling the car cabin temperature using GPRS. I will be using Arduino Uno and GSM shield to communicate with an Android App. The arduino works ...
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921 views

Citroen C4 Coupe Radio (RD4-N1) - Unlocking Aux-Input

I've recently bought this kind of device for my "Citroen C4 Coupe" with the RD4 - N1 radio (Label: Blaupunkt): Bluetooth-Transmitter Then I realised, that the radio doesn't come with a standard ...
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697 views

Reading CAN messages through UART to OBD-II Board and MATLAB Toolbox

I want to read/write CAN messages. I have MATLAB in my laptop which has a Vehicle Network Toolbox which supports reading/writing CAN messages. I have my hardware OBD-II to UART board, FTDI and OBD-ii ...
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215 views

OBD2 and CAN-bus

Do all vehicles with OBD2 have a CAN-bus? Otherwise, what are the alternative buses used? Are there special versions of the buses for trucks and school-buses than for cars/suv/vans?
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348 views

Writing CAN Messages

I want to know what should I write with the CAN ID to send it to ECU. I am using ELM327 and Raspberry Pi with all connections to OBD-ii. initially for sending general PIDs to the ECU through ELM327 ...
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Controlling door locks via CAN bus

I'm trying to figure out how to lock and unlock the doors of a 2010 Toyota RAV4 using the CAN bus via the OBD-II port. I have a microcontroller attached via an CAN controller and a CAN receiver, and ...
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719 views

What is the best way to reverse engineer the signals of a CAN-BUS?

There are always better ways.... I'm up to reverse engineer some CAN-BUS signals. Before I start, I'd like to discuss with guys who done this before and are willing to share their methodology. I'm ...
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747 views

CAN-BUS signals of Ford Transit needed

I'm looking for the specification of the CAN-BUS signals for the Ford Transit connect 2013. Does anyone know who might have done this reverse engineering already? Specifically, I'm looking for ...
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How do I find the correct pins in a CAN-BUS connector?

This question might be too technical for this forum, but I'll give it a go. I have a 2012 BMW R1200R motorcycle with CAN-BUS. I'd like to make an Arduino interface to the connector on the bike, but I ...