9 Pin Diagnostic Connector Wiring Diagram
3 12where can i find wiring diagrams for j1939.
9 pin diagnostic connector wiring diagram. The trucks that were checked had measurements that were about 65 to 68 ohms on pins c and d of the 9 pin data link connector. Variety of d sub 9 pin connector wiring diagram. In most data link troubleshooting text books this is an acceptable. The pinout for this plug is given in the diagram and the vms data wires can be spliced into the data wires on this plug.
Output power circuit 30. Power pin 15 or circuit 87. What can i do to make pinout measurements easier. Unlike the obd i connector which was found under the hood of the vehicle the obd ii connector is located on the driver s side of the passenger compartment near the center console.
Me sfi part right. Transmissions will either be j1708 j1587 or j1939 depending on the model year of the coach. The pinout of the diagnostic connectors. 3 10the pins are difficult to see.
The obd ii specification provides for a standartized hardware interface the female 16 pin 2x8 j1962 connector. It reveals the components of the circuit as simplified forms and the power and also signal connections in between the tools. 3 8 which connector pins are j1939 and j1939. Nine pin diagnostic a ground b power c j1939 data.
Contact k line of the electronic control unit ecu ecu engine hfm sfi dfi lh sfi ifi. 3 11can a vehicle have j1939 but not have a 9 pin diagnostic connector. The pinout of the diagnostic connector mercedes 38 pin. J1939 data will require the data c wire pair and a 9 pin diagnostic plug.