Questions tagged [obd]
OBD means "On-Board-Diagnostics" for motor vehicles. Originally proprietary, there are now standards such as OBD-II and EOBD which define the connectors, electrical signalling systems and a standard set of messages.
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Should I tie Signal Gnd (pin 5) and Chassis Gnd (Pin 4) together on OBD-II port?
I am building a OBD-II reader and wonder if I should tie these two GND together. What is the pros and cons of doing that? My device is powered by car battery and it reads OBD-II protocols through ...
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OBD port power source [closed]
I've read on forums that OBD port can provide max 5A current at 12V. What is the source of the power? Is it coming from battery directly or is it regulated power supply from somewhere else, maybe ECU? ...
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Interpreting CAN bus data from OBD port
I'm using an Arduino with MCP2515 and MCP2551 to read data from a CAN bus over the OBD-II port of my car, Honda Jazz 2012. From what I've read on other forums and the OBD wiki, I can transmit the PID ...
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Reading from CAN bus of a Chevrolet Cruze using an Arduino Uno
I'm using the Arduino Uno, CAN bus shield, and OBDII to DB9 Cable using their provided libraries. I was only able to initialize it.
Readings:
While connected to the car:
CAN-High: 2.7 V - 3.0&...
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STN1110 LED1 keep flashing rapidly
I did a pcb mount for a stn1110 "Multiprotocol OBD to UART Interpreter" and followed exactly schematic from datasheet.
The issue I have is that after is starting, there is a sequence of flashing the ...
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STN1110 UART-RX-LED is flashing rapidly
I did a pcb mount for a stn1110 "Multiprotocol OBD to UART Interpreter" and followed exactly schematic from datasheet.
The issue I have is that after is starting, there is a sequence of ...
