J1939 Quad Cable This cable is the most

This cable is the most convenient to use if your car is equipped with the 12 pin connector style

a function to set the ECM location (Port

and malfunction trouble code reading and clearing (including freeze-frame data)

it will tell you how many milliseconds (mS) the injector is firing on the LCD readout

J1939 Quad Cable This cable is the mostQuad expansion cable for J1939 systems. This cable includes one Female (sockets) connector to plug into your vehicle connected to four Male (pins) bulkhead connectors. This allows you to plug four accessories into one vehicle bulkhead connector. 6 contacts are Y'ed through to the two vehicle side connectors: A: Ground B: Battery C: J1939 High D: J1939 Low F: J1939 J1708 High G: J1939 J1708 Low