Code 52 Line Contactor driver shorted on start up. Check power cables going to motor, make sure all connections are tight and cable has not rubbed a hole against the frame. Verify all wires going to contactor are good. Verify all switches are working correctly, ie seat switch, park brake switch, throttle switch. Should all check good, suspect controller failed. Need to check with program before replacing or swap with sister truck.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.