ECM（发动机电脑）与计量单元通讯中断。可能是信路问题，也可能是计量单元自身出现问题。
3520 Aftertreatment 1 Diesel Exhaust Fluid Properties Preliminary FMI 3521 Aftertreatment 1 Diesel Exhaust Fluid Property 3522 Aftertreatment 1 Diesel Exhaust Fluid Tank Level Preliminary 3522 Aftertreatment #1 Total Fuel Used 3523 Aftertreatment #1 Total Regeneration Time 3524 Aftertreatment #1 Total Disabled...