Dongfeng 3615010-KJ1Q2 Aftertreatment Control Unit

The 3615010-KJ1Q2 is an electronic control unit designed for the selective catalytic reduction (SCR) aftertreatment system on heavy-duty commercial vehicles. It regulates urea injection dosing based on NOx sensor feedback and exhaust temperature inputs to meet China IV/V emission standards. The unit communicates via SAE J1939 CAN protocol with the engine ECU and vehicle network. Housed in a sealed aluminum enclosure rated to IP67/IP69K for under-chassis mounting environments. Compatible with Dongfeng Tianlong 8x4 chassis configurations equipped with Cummins ISLe series diesel engines. Supports diagnostic fault code retrieval for SCR system maintenance.