Car Connector Pinouts
OBD-II (16-pin)
| Pin | Name | Function | Type |
|---|
| 1 | Vendor | Manufacturer Discretion | Varies |
| 2 | J1850+ | SAE J1850 Bus+ | Signal |
| 3 | Vendor | Manufacturer Discretion | Varies |
| 4 | CGND | Chassis Ground | Ground |
| 5 | SGND | Signal Ground | Ground |
| 6 | CAN_H | CAN Bus High (ISO 15765) | Signal |
| 7 | K-Line | ISO 9141-2 K-Line | Signal |
| 8 | Vendor | Manufacturer Discretion | Varies |
| 9 | Vendor | Manufacturer Discretion | Varies |
| 10 | J1850- | SAE J1850 Bus- | Signal |
| 11 | Vendor | Manufacturer Discretion | Varies |
| 12 | Vendor | Manufacturer Discretion | Varies |
| 13 | Vendor | Manufacturer Discretion | Varies |
| 14 | CAN_L | CAN Bus Low (ISO 15765) | Signal |
| 15 | L-Line | ISO 9141-2 L-Line | Signal |
| 16 | VBAT | Battery Voltage (+12V) | Power |
ISO 10487 (Power Connector - Block A)
| Pin | Name | Function | Type |
|---|
| A1 | Speed | Speed Signal | Signal |
| A2 | Phone Mute | Phone Mute | Signal |
| A3 | NC | Not Connected | — |
| A4 | BAT+ | Battery +12V (permanent) | Power |
| A5 | ANT | Antenna Motor Control | Signal |
| A6 | ILL | Illumination | Signal |
| A7 | ACC+ | Switched +12V (ignition) | Power |
| A8 | GND | Ground | Ground |
Mini ISO (20-pin Car Audio)
| Pin | Name | Function | Type |
|---|
| 1 | CD_L- | CD Changer Left- | Signal |
| 2 | CD_L+ | CD Changer Left+ | Signal |
| 3 | CD_R- | CD Changer Right- | Signal |
| 4 | CD_R+ | CD Changer Right+ | Signal |
| 5 | ANT | Antenna | Signal |
| 6 | CD_GND | CD Ground | Ground |
| 7 | CD_DATA | CD Data Bus | Signal |
| 8 | CD_CLK | CD Clock | Signal |