OTC 3418 Heavy-Duty Code Reader Perfect tool for technicians that need a fast toolbox tool to read and clear heavy-duty DTC&#8217;s HD J1587 / J1708 and J1939 CAN Engine Transmission/ABS coverage and more Read and clear diagnostic trouble codes (DTC's) on light- mid- and heavy-duty and industrial vehicles On screen DTC definitions for heavy-duty standard codes Battery powered for off vehicle use and is Internet update capable Perfect tool for technicians that need a fast toolbox tool to read and clear heavy-duty DTC&#8217;s HD J1587 / J1708 and J1939 CAN Engine Transmission/ABS coverage and more. Class 4  8 truck coverage Read and clear diagnostic trouble codes (DTC's) on light- mid- and heavy-duty and industrial vehicles On screen DTC definitions for heavy-duty standard codes Battery powered for off vehicle use and is Internet update capable