CarHackingResearch

A simple vehicle CAN data logger script made with Bash and runs on Macchina P1 (Under-The-Dash)

Technologies & Hardware Requirements

• Macchina P1 (Under-The-Dash)
• USB-A to Micro-USB cable
• Linux
• PuTTY or Bitvise

Setup

1) Follow the steps provided in the P1 documentation to setup the P1

2) Run dataLogger.sh at startup

Add dataLogger.sh to any directory you want, run the crontab command Sudo crontab -e and add the the following command at the end of the file @reboot sleep 60 && <your path>/dataLogger.sh This will run the script exactly one minute after startup

Troubleshoot

1) You followed the P1 documentation but running the command candump -cae can0,0:0,#FFFFFFFF shows nothing in the terminal

If you have this problem, there are two things you can try:

• Try different bitrates in the set up command sudo ip link set can0 type can bitrate 250000 listen-only on
• Connect to the P1 using a serial port connection through PuTTY using the following settings: 115200 baud, 8-N-1 configuration (8 data bits, no parity and one stop bit)

2) You tried the above solution but you still can't see any data when you run the candump command

If the first solution didn't work your CAN bus might be uni-directional and only responds to queries made by the user. You can check this by running the following command which queries the vehicle VIN number cansend can0 7df#0209020000000000 if you get a dataframe back then that means your connection is correct but your OBD-II connector is uni-directional.

Example Data

  can0  160   [7]  31 23 26 00 08 FF E8
  can0  180   [8]  14 37 32 63 12 00 3D 10
  can0  182   [8]  00 00 00 00 00 1D 00 C5
  can0  1F9   [8]  20 20 14 37 00 00 4E 80
  can0  2DE   [8]  02 00 80 05 F0 00 0D 96
  can0  3AB   [4]  00 03 00 55
  can0  002   [5]  66 FF 00 07 43
  can0  284   [8]  00 00 00 00 00 00 28 AE
  can0  285   [8]  00 00 00 00 00 00 28 AF
  can0  280   [8]  03 DF 80 00 00 00 A1 40
  can0  5C5   [8]  44 01 58 B6 00 0C 00 7F
  can0  174   [8]  65 46 54 AA 0D 00 00 00
  can0  176   [7]  00 1E 00 26 DE E0 6D
  can0  177   [8]  FE 10 40 00 00 00 00 00
  can0  421   [3]  08 00 00
  can0  560   [6]  AC 14 30 06 7F C0
  can0  1A5   [7]  3F FE 00 00 00 32 24
  can0  2DE   [8]  02 00 80 05 F0 00 0D 96
  can0  160   [7]  31 23 25 00 08 FF E8
  can0  180   [8]  14 50 32 53 12 00 3E 10
  can0  182   [8]  00 00 00 00 00 1E 00 C5
  can0  1F9   [8]  20 20 14 50 00 00 4E 80
  can0  60D   [8]  08 06 18 00 00 00 40 00
  can0  002   [5]  66 FF 00 07 34
  can0  215   [7]  FF F0 FF 30 FF FF 00
  can0  216   [2]  40 00
  can0  245   [8]  FF E0 00 18 29 10 FF E1