Dongfeng 3615010-KJ1QF Aftertreatment Control Module Assembly

This Aftertreatment Control Module (ACM), also designated as Dosing Control Unit (DCU), governs the Selective Catalytic Reduction (SCR) system on heavy-duty commercial vehicles. It precisely controls urea injection dosing, monitors NOx sensor signals, and manages heater circuits for the urea tank and lines. The unit communicates via SAE J1939 CAN protocol with the Engine Control Module (ECM) and vehicle network. Designed for 24V electrical systems, it operates within an ambient temperature range of -40°C to +85°C and meets IP67 ingress protection standards for chassis mounting. The aluminum housing provides EMI shielding and thermal dissipation for internal power drivers. Connector interface utilizes a sealed multi-pin automotive connector compatible with Dongfeng Yulong and Tianlong chassis harnesses. This assembly replaces Dongfeng part numbers 3615010-KJ1QB, 3615010-KJ1Q1, and 3615010-T68M4 variants. Calibration is specific to Cummins ISLe Euro III/IV/V engine aftertreatment configurations.