Tapping into a vehicle's CAN bus through the OBD2 port is the fastest way to capture diagnostic data, log fleet telematics, or reverse engineer a car's signals. Grid Connect stocks three DB9-to-OBD2 cables that all carry the same CAN High and CAN Low pin assignments. The choice comes down to length and price. This chart puts the identification, physical, and pinout specs side by side so you can pick the right cable in seconds.
| Product Features | DB9 to OBD2 CAN Bus Cable | PEAK CAN to OBD2 Cable | CSS OBD2 to DB9 Adapter Cable |
|---|---|---|---|
| Product identification | |||
| Manufacturer | Grid Connect | PEAK System Technik | CSS Electronics |
| MPN | GC-CAN-CAB-OBD2-2M-GC | IPEK-003004 | A001 |
| SKU | GC-CAN-CAB-OBD2-2M-GC | GC-CAN-CAB-OBD2 | GC-CSS-CAB-DB9-OBD2 |
| Price (USD) | $32.00 | $74.00 | $65.00 |
| Physical specifications | |||
| Connectors | DB9 female to OBD2 16-pin male | DB9 female to OBD2 16-pin male | DB9 female to OBD2 16-pin male |
| Cable length | 2 m (6.6 ft) | 1 m (3.3 ft) | 1.5 m (4.9 ft) |
| CAN Termination | No | No | No |
| Pinout | |||
| CAN High pin | DB9 pin 7 → OBD2 pin 6 | DB9 pin 7 → OBD2 pin 6 | DB9 pin 7 → OBD2 pin 6 |
| CAN Low pin | DB9 pin 2 → OBD2 pin 14 | DB9 pin 2 → OBD2 pin 14 | DB9 pin 2 → OBD2 pin 14 |
| Power Pin | DB9 pin 9 → OBD2 pin 16 | No Connection | DB9 pin 9 → OBD2 pin 16 |
| Ground pin | DB9 pin 3 → OBD2 pin 4 | No Connection | DB9 pin 3 → OBD2 pin 4 |
| DB9 pinout standard | CiA® 102 / 303-1 | CiA® 102 / 303-1 | CiA® 102 / 303-1 |
