Dongfeng KL truck parts Vehicle body auxiliary wiring harness assembly light sensor 3724011-C3308

Built as a key component for automatic lighting adjustment, the integrated light sensor (integrated within the harness) adopts photoelectric diode technology to realize precise ambient light detection. It measures light intensity in the range of 0.1-100,000 lux with a measurement error of ≤3%, transmitting real-time data to the BCM to trigger automatic headlight activation (below 10 lux) and dimming (above 500 lux). The sensor features a 120° detection angle and anti-glare filter, avoiding misoperation caused by oncoming vehicle headlights or street lamps. For Dongfeng KL drivers, this integration eliminates manual headlight adjustments, enhancing driving safety during dawn, dusk, or tunnel passage—reducing the risk of traffic accidents by 25% in low-light conditions

Engineered to guarantee reliable signal transmission between the light sensor and body electrical modules, the harness assembly uses high-purity oxygen-free copper (OFC) conductors. Each wire has a cross-sectional area of 0.3-2.5mm² (matched to load demands), achieving conductivity ≥98% IACS and voltage drop ≤0.08V/m—ensuring the light sensor’s weak analog signals are transmitted without distortion. The wires are twisted in pairs (twist pitch 15-25mm) to reduce electromagnetic interference (EMI) by 65%, preventing signal disruption from the truck’s high-voltage components. The light sensor’s dedicated shielded wire (aluminum foil + tinned copper braid) further isolates external interference, ensuring the BCM receives accurate light intensity data even in complex electrical environments

Optimized to endure the harsh environment of the truck body (exposed to vibration, moisture, and road debris), the harness assembly features a comprehensive protective structure. Wires are insulated with flame-retardant PVC (UL94 V-0 grade, 0.8-1.2mm thickness) that resists diesel fuel, cleaning agents, and high temperatures. The entire harness is wrapped in a braided polyester sleeve (density 18×18 strands/cm²) for abrasion resistance, preventing damage from friction with metal brackets. The light sensor housing is made of IP67-rated ABS plastic, blocking water and dust ingress, while its connector uses HNBR rubber seals and gold-plated pins. All terminals are tin-plated (5μm thickness), passing 1200-hour neutral salt spray testing (ASTM B117) with no contact resistance increase

This integrated harness assembly delivers significant cost savings and maintenance convenience for Dongfeng KL operators. The pre-integrated light sensor eliminates the need for separate wiring, reducing component count by 30% and installation time by 50% compared to non-integrated solutions. The OE design ensures perfect compatibility with the BCM, avoiding mismatched connections that cause electrical malfunctions (e.g., headlight failure, repair costs up to $600). The high-quality materials extend the assembly’s service life to ≥300,000km—three times that of aftermarket harnesses—reducing replacement frequency. Clear color-coded wires and labeled connectors simplify troubleshooting, cutting diagnostic time by 70%. Backed by a 2-year/200,000km Dongfeng warranty, it ensures reliable intelligent lighting control and predictable maintenance expenses for fleet operators