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FAW After-Treatment Harness Logic Assembly

FAW After-Treatment Harness Logic Assembly
FAW After-Treatment Harness Logic Assembly
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What is the FAW After-Treatment Harness Logic Assembly

  • The FAW After-Treatment Harness Logic Assembly is the sophisticated electronic control unit at the heart of the emissions control system in modern FAW commercial trucks. This vital module processes critical data from sensors (NOx, temperature, pressure) throughout the exhaust after-treatment system (ATS) and precisely controls actuators like dosing injectors and heaters. Its “logic” ensures optimal operation of the Selective Catalytic Reduction (SCR) and Diesel Particulate Filter (DPF) systems, managing urea dosing rates, regeneration cycles, and system diagnostics. The correct function of the After-Treatment Harness Logic Assembly is paramount for achieving stringent emissions compliance (e.g., Euro VI, China VI), maintaining engine performance, and preventing costly system faults or derates.
  • Physically connecting this logic module to the multitude of sensors, injectors, heaters, and valves scattered across the hot and vibration-prone exhaust system is the robust After-Treatment Harness Assembly. This specialized wiring harness is engineered with high-temperature resistant wires, protective conduit, and sealed connectors capable of withstanding extreme under-hood temperatures, exposure to chemicals (like Diesel Exhaust Fluid – DEF), moisture, and constant vibration. The After-Treatment Harness Assembly acts as the nervous system, faithfully transmitting sensor signals to the logic unit and carrying its control commands back to the ATS components.
  • Ensuring the After-Treatment Harness Assembly remains securely routed, protected from abrasion, and away from hot surfaces or moving parts is critical for long-term reliability. This is achieved through meticulous installation using Cable Ties. These durable ties are strategically used to bundle wires neatly, anchor the harness to dedicated clips or brackets on the chassis frame or ATS components, and maintain safe clearance from exhaust pipes and other hazards. Proper application of Cable Ties prevents wire chafing, harness sagging, and potential shorts or opens caused by vibration or heat damage, safeguarding the integrity of the entire after-treatment control system.

Product Parameters of FAW After-Treatment Harness Logic Assembly

Order Part NO. Part Name And Standards Oty
After-Treatment Harness Logic  Assembly 1
1 3724345-DY889Q After-Treatment  Harness Assembly 1
2 3723011-81W-C00 Cable Ties 10

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