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Opel OBD II diagnostic interface pinout |
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 |
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Pin
Number |
Pin
Name |
Opel vehicle function |
| 1 |
|
n/a |
| 2 |
J1850 |
n/a |
| 3 |
|
K-Line, K2, TCM, Sunroof, CDL, Multi-Timer |
| 4 |
GND |
Chassis ground |
| 5 |
SGND |
Signal Ground |
| 6 |
HS-CAN |
Blinkcode |
| 7 |
K-Line |
K-Line, K1 (engine) |
| 8 |
|
K-Line, K4 |
| 9 |
|
reserved |
| 10 |
PWM |
n/c |
| 11 |
|
reserved |
| 12 |
|
K-Line, K3, ABS, TC, Steering, RTD, OW |
| 13 |
|
reserved, K-Line, K5 |
| 14 |
HS-CAN(-) |
reserved |
| 15 |
L-Line |
n/c |
| 16 |
Battery+ |
Battery +, unswitched |
Some OBD-II cables schemes:
OBD-2 ISO 9141-2 (14230-4, KWP2000) simple serial cable
OBD-2 J1850 PWM, J1850 VPW serial ELM327 cable
OBD-2 universal ISO 15765-4 CAN, SAE J1850 PWM, SAE J1850 VPW, ISO 9141-2, ISO 14230-4 and SAE J1939 diagnostic cable
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