Shop used Freightliner M2 Engine Control Modules (ECM) on MyLittleSalesman.com . Compare active listings with prices from $150 to $1,000. Sellers include CRG Heavy Truck Parts, DTI Truck Parts, Lomoca, and more. Filter by condition, price, or year to find the Freightliner M2 Engine Control Module (ECM) that fits your job.