Dongfeng KL truck parts Steering angle sensor assembly C3636510-90001

At the assembly’s core is a dual-channel hall-effect sensor that delivers ultra-precise steering angle data. With a resolution of 0.08°, it accurately measures steering wheel rotation (from -750° to +750°, covering 4.2 full turns) and transmits real-time digital signals to the ECU. This high precision enables the ESP system to adjust brake force and engine torque within 45ms of detecting oversteer/understeer—critical for maintaining control during heavy-haul or wet-road maneuvering. The sensor’s linearity error is ≤0.4%, ensuring consistent feedback even at extreme angles, while its contactless design eliminates wear from mechanical friction (unlike potentiometer-based sensors), enduring 2.5 million+ steering cycles (equivalent to 9 years of heavy use) without signal degradation

Built to withstand the harsh conditions of the steering column—constant vibration, temperature extremes, and electromagnetic interference (EMI)—the assembly uses durable materials and protective features. The outer housing is made of impact-resistant PC/ABS plastic (UL94 V-0 flame-retardant rating) that tolerates temperatures from -45°C (freezing winters) to 90°C (engine bay heat) without warping. The internal circuit board is coated with a 0.25mm conformal epoxy layer, providing IP6K7 waterproof/dustproof protection to shield components from oil, moisture, and road dust. A multi-layer copper EMI shield surrounds the sensor module, blocking interference from the truck’s alternator, ignition system, and other electrical components—ensuring stable signal transmission even in high-EMI environments

Engineered with functional safety as a priority, the assembly includes redundant safeguards to prevent steering control failures. It features dual independent signal channels (primary and backup) that the ECU cross-verifies—if a discrepancy exceeds 0.8°, the system triggers a diagnostic fault code and activates a limp-home mode (maintaining basic steering functionality) to avoid sudden stability loss. A built-in over-voltage protection circuit (clamping at 29V) shields the sensor from electrical spikes, while a thermal shutdown function (activating at 95°C) prevents overheating. The sensor also performs self-diagnostics on startup (checking circuit continuity and hall-element health) and sends real-time status data to the ECU, enabling quick troubleshooting via standard truck diagnostic tools. These features meet ISO 26262 ASIL-B safety standards, eliminating risks of incorrect angle data causing ESP malfunctions

Designed for hassle-free replacement by fleet technicians or DIY owners, the assembly simplifies setup with plug-and-play functionality. It includes all necessary hardware: 3 M5×14mm stainless steel mounting bolts, lock washers, and a vibration-damping foam gasket that reduces sensor noise. Installation takes 15–20 minutes: remove the old sensor, align the new assembly with the steering column’s reference marks, tighten bolts to 13 N·m torque, and plug in the 6-pin connector. Unlike aftermarket sensors that require manual calibration via specialized software, this OEM unit is pre-calibrated at the factory—the ECU automatically recognizes the sensor and syncs it with the steering system within 25 seconds of ignition. For maintenance, the sensor requires no periodic servicing, and its rugged design ensures long-term reliability. Each unit undergoes angle accuracy testing, vibration trials (10–2,000 Hz, 15G acceleration), and EMI resistance checks, backed by a 24-month warranty against defects (e.g., signal failure, housing cracking, connector damage)