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16 pin J1962 OBD-2 car proprietary connector layout
16 pin J1962 OBD-2 car proprietary connector
at the Opel car
all after-1996 Opel models



 

Pin
Number
Name		 Description (may be empty)
2 K-Line  ABS diagnostic
3 K-Line  Radio, automatic transmission, immobilizer, steering wheel and other components
4 GND  Chassis ground
5 GND  Signal ground
6 CAN-High, J-2284  If car isn't equipped with CAN bus, you'll find self-diagnostic slow codes (e.g. on Astra-F-G) or ABS K-Line at this pin
7 K-Line  Engine, ABS, AT, Airbag, Navigation system, Radio diagnostic
8 K-Line  TID, MID diagnostic
9 K-Line  ABS, Airbag
11 K-Line  Automatic transmission diagnostic
12 K-Line  TID, MID, ABS, AirBag, air conditioner, Kuhlerlufter-Steuergerat
13 K-Line  immobilizer, MID, Airbag diagnostic
14 CAN-Low, J-2284  if CAN present
16 +12V  Accumulator

 


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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