Dongfeng GX Brake signal transmitter assembly 3514210-K20X0

As the "communication bridge" of the Dongfeng GX’s brake system, the 3514210-K20X0 assembly is responsible for converting mechanical brake action into electrical signals and transmitting them to key vehicle systems with zero delay. When the driver depresses the brake pedal, the transmitter’s internal sensing mechanism (either a pressure-sensitive switch or a hall-effect sensor) detects the movement and sends an immediate signal to two critical destinations: 1) the brake light circuit, activating the rear brake lights to alert following vehicles; 2) the vehicle’s ECU, which uses the signal to coordinate auxiliary safety systems (e.g., triggering ABS to prevent wheel lock-up, or deactivating cruise control). The transmitter ensures signal accuracy even under varying pedal pressures (e.g., light braking vs. emergency stops) and maintains a stable connection—preventing dangerous scenarios like non-functional brake lights or delayed safety system responses

The 3514210-K20X0 brake signal transmitter is built with a robust, wear-resistant structure to withstand the high-frequency use of brake pedals (thousands of cycles daily) and the harsh conditions of the engine bay. The external housing is made of reinforced engineering plastic (e.g., PBT+GF30), which offers excellent impact resistance to handle accidental bumps in the engine bay and heat resistance to endure temperatures up to 100°C (common in under-dash or engine bay locations). The internal sensing components—such as the contact points (for switch-type transmitters) or hall-effect chip (for electronic variants)—use industrial-grade materials: gold-plated contact points ensure low electrical resistance and prevent corrosion from moisture, while the hall-effect chip features a protective coating to resist electromagnetic interference (EMI) from other on-board electronics. The mechanical linkage (connecting the transmitter to the brake pedal) is made of stainless steel, preventing rust and ensuring smooth movement even after years of use

The 3514210-K20X0 assembly is calibrated with Dongfeng GX-specific technical parameters to ensure optimal compatibility with the vehicle’s electrical and safety systems. It operates on the Dongfeng GX’s standard 12V or 24V on-board voltage (matching the vehicle’s electrical architecture) and has a low standby power consumption (≤2W) to avoid draining the battery. For switch-type variants, the contact response time is ≤10ms—fast enough to activate brake lights instantly when the pedal is pressed. For hall-effect variants, the signal output is a linear analog voltage (0-5V) or digital PWM signal, which the ECU uses to detect brake pedal travel (enabling features like adaptive brake force). The transmitter also has an overvoltage protection function (up to 36V) to prevent damage from electrical surges in the vehicle’s wiring system. Importantly, its signal protocol is synchronized with the Dongfeng GX’s ABS and ESC ECUs, ensuring that safety systems receive accurate, real-time brake data

The 3514210-K20X0 brake signal transmitter assembly meets strict global automotive quality standards and undergoes rigorous testing to ensure reliability—critical for a component that directly impacts vehicle safety. It is manufactured in accordance with ISO/TS 16949 (the automotive industry’s quality management standard) and complies with ECE R10 (for electromagnetic compatibility) and Chinese national standards (GB 7258), ensuring it works without interfering with other on-board electronics and meets safety requirements. Each unit undergoes 100% factory testing, including: mechanical durability testing (100,000+ pedal cycle tests to simulate long-term use), electrical performance testing (signal accuracy under varying voltages), and environmental testing (resistance to moisture, dust, and temperature extremes). To support customers, the transmitter comes with a manufacturer’s warranty (typically 12 months or 20,000 kilometers) and access to technical support—including installation guides and troubleshooting assistance—making it a trusted choice for Dongfeng GX owners, fleet operators, and repair facilities