Mobile Computing Solutions Mo-Co-So J1939 Bypass Y Cable with Female J1962 OBD-II Connector Scan Tool GPS Tracker Our J1939 to J1962 Bypass cable is the easy way to add a 16 pin J1962/OBD-II port to a vehicle with J1939 diagnostic port while retaining access to the OEM port via bulkhead J1939 connector Ideal for Scan Tools and GPS Trackers 6.5'/2M J1962/OBD-II lead allows for optimal placement of GPS trackers under the dash 18"/90cm OEM lead allows for enough slack to mount the connector without creating clutter