Once you’ve hacked everything, why not take it outside and hack your car? This cable enables access to the pins on your car’s OBD-II connector. It has an OBDII connector on one end and a DE9 (or “DB9”) female serial connector on the other. The overall length of the cable is 5′.
Note: This cable is not meant to be plugged directly into a computer’s serial port. It is designed to connect to a specific hardware interface.
Here is the basic pinout (OBDII> DE9 Female)
| Pin Description | OBDII | DE9 |
| J1850 BUS+ | 2 | 7 |
| Chassis Ground | 4 | 2 |
| Signal Ground | 5 | 1 |
| CAN High J-2284 | 6 | 3 |
| ISO 9141-2 K Line | 7 | 4 |
| J1850 BUS- | 10 | 6 |
| CAN Low J-2284 | 14 | 5 |
| ISO 9141-2 L Line | 15 | 8 |
| Battery Power | 16 | 9 |
Documents:
- Pinout Diagram
