![]() This bus used for some IC, RFA and other units. Pin Pin name Description 1 SW-LS-CAN (33kB) or DW-FT-CAN (+) (<125kB) 2 J1850 N/A 3 MS-CAN (+) (95kB) 4 GND Chassis ground 5 SGND Signal Ground 6 HS-CAN ISO 15765 HS-CAN (+) (500kB) 7 K-Line N/A 8 N/A 9 DW-FT-CAN (-) (<125kB) 10 PWM n/c 11 MS-CAN (-) (95kB) 12 K-Line (KW82 Prot.) 13 Reserved 14 HS-CAN(-) ISO 15765 HS-CAN (-) (500kB) 15 L-Line N/A 16 Battery+ Battery positive power Ford OBD2 pinout Pin Pin name Circuit Description 2 J1850 Bus+ / SCP Bus Bus 914 (TN/OG) ABS and others or not used 3 Medium speed CAN+ or UBP bus 2180 (WH/BK) or 1906 (VT) Low speed (125Kb) CAN bus. And eventually, GM-LAN has been used on other GM vehicles. The protocol was first applied to Saturn Ion and 2004 Cadillac XLR. Pin 2, 4, 5, 6, 7, 10, 14, 15, 16 are standard across all 1996+ vehicles sold in the US Pin 1, 3, 8, 9, 11, 12, 13 are manufacturer discretion, which means they are used for different purposes in different cars. The below tables are true with almost all modern GM vehicles (Chevrolet, GMC, Cadillac, Pontiac, Oldsmobile, Hummer, Saturn, Saab, etc.) Pin Pin name Description 1 J1850 Second UART 2 J1850(+) VPW 3 Comfort 4 GND Chassis ground 5 SGND Signal Ground 6 HS-CAN PCM 7 K-Line K-Line of ISO 9141-2 and ISO 14230-4 8 CCM 9 first UART 10 PWM n/c 11 EVA controller 12 ABS 13 SIR 14 HS-CAN(-) E&C 15 L-Line L-Line of ISO 9141-2 and ISO 14230-4 16 Battery+ Power sourseįrom 2004, GM started to use another pinout – GM-LAN. The below is the general pinout of all vehicles that use the Onboard diagnostics 2 (OBD2) interface. ISO 9141 – L Line L-Line of ISO 9141-2 and ISO 14230-4Ĭommon protocols for European vehicles between 20 16 Battery+ Battery positive power GM OBD2 pinout – K Line K-Line of ISO 9141-2 and ISO 14230-4Ĭommon protocols for 2003+ vehicles and European vehicles between 20 15 14 CAN Low CAN ISO 15765-4 and SAE J2284ĬAN protocol uses 2 wires to communicate, this is CAN low (CANL) wire. 4,5 Ground Chassis ground and Signal ground 6 CAN High CAN ISO 15765-4 and SAE J2284ĬAN protocol uses 2 wires to communicate, this is CAN high (CANH) wire. This is the positive pin of the protocol. 10 SAE J1850 Bus- Commonly found on GM vehicles. General OBD2 pinout Pin Pin Name Description 1,3,8,9,11,12,13 Blank Manufacturer discretion - different among cars 2 SAE J1850 Bus+ Commonly found on GM vehicles. Pin 1, 3, 8, 9, 11, 12, 13 are manufacturer discretion, which means they are used for different purposes in different cars.
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