UDS (Unified Diagnostic Services, ISO 14229) runs over CAN on the OBD-II connector for modern vehicle diagnostics, ECU flashing, and parameter reading via professional scan tools like ETAS INCA and Vector CANalyzer.
| Pin | Name | Function | Type |
|---|---|---|---|
| 6 | CAN_HIGH | ISO 15765 CAN high for UDS | BUS |
| 14 | CAN_LOW | ISO 15765 CAN low for UDS | BUS |
| 4 | CHASSIS_GND | Chassis ground | GND |
| 16 | BATTERY | 12V battery power | PWR |