DDEC II Boot Mode

 

hi buddy, well to recalibrate or programing DDECII, the ecm should stay in boot mode, to put the ecm in boot mode make the next bench conecction.... B3 = Ignici?n C1 = Data link J1708 (-) C2 = Data link J1708 (+) E1 = Connect one resistor of 3.9k to GND F2, G3 y H3 = GND remember this metod is to calibrate only, to read data from the ecm disconecct the power, disconnect E1, F2, G3 and H3 wait 5 seconds then connect the power