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116.95 GBP
ABS 30475 Wheel Speed Sensor
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ABS 30475 Wheel Speed Sensor: An Overview
The ABS 30475 Wheel Speed Sensor is a critical component in modern vehicle safety systems, specifically designed to monitor the rotational speed of each wheel and relay this information to the Anti‑Lock Braking System (ABS) controller. By providing real‑time data on wheel velocity, the sensor enables the ABS module to modulate brake pressure, preventing wheel lockup during emergency stops and maintaining steering control.
Key Functionalities
- High Accuracy Wheel Speed Detection: Measures rotational speed with precision, ensuring reliable input for the ABS algorithm.
- Passive Magnetic Sensing: Utilizes a magnetic field and a toothed wheel to generate voltage pulses without requiring external power beyond the vehicle’s electrical system.
- Robust Operating Temperature Range: Operates effectively from –40 °C to +120 °C, accommodating extreme driving environments.
- Long‑Term Reliability: Designed for durability against vibration, moisture, and mechanical shock typical in automotive applications.
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | ABS 30475 |
| Sensor Type | Passive Magnetic Wheel Speed Sensor |
| Operating Voltage | 12 V DC (typical automotive supply) |
| Signal Output | Pulse Frequency proportional to wheel speed |
| Temperature Range | –40 °C to +120 °C |
| Mounting Orientation | Front or Rear Axle, Left or Right Wheel |
| Connector Type | Standard automotive plug (e.g., 3‑pin) |
| Dimensions | Approx. 70 mm × 50 mm × 30 mm |
| Weight | ~0.15 kg |
| Material | High‑grade steel housing with protective coating |
Compatibility and Vehicle Integration
The ABS 30475 sensor is engineered to fit a wide range of vehicle platforms, particularly those manufactured by major automotive brands that employ the standard wheel speed sensor architecture. It is compatible with:
- Front‑wheel drive (FWD) and rear‑wheel drive (RWD) configurations.
- All‑wheel drive (AWD) systems where individual wheel speed monitoring is required.
- Vehicles equipped with Electronic Stability Control (ESC), Traction Control, and Hill‑Start Assist modules that rely on accurate wheel speed data.
Installation Guidelines
- Preparation: Ensure the vehicle is parked on a level surface. Disconnect the battery to prevent accidental electrical discharge.
- Remove Existing Sensor: Locate the sensor housing near the wheel hub. Carefully detach the wiring harness and unscrew the mounting bolts. Gently lift the sensor out of its cavity.
- Inspect Wheel Hub: Clean any debris or corrosion from the sensor slot to guarantee a snug fit for the new unit.
- Mount New Sensor: Place the ABS 30475 into the housing, aligning the magnetic teeth with the wheel’s gear. Secure it using the original bolts and torque specifications provided by the vehicle manufacturer.
- Reconnect Wiring: Attach the sensor’s connector to the harness, ensuring a firm connection. Verify that no wires are pinched or exposed.
- Re‑connect Battery: Restore power and perform a diagnostic check using an OBD‑II scanner to confirm proper sensor operation.
Maintenance Tips
- Regularly inspect the wiring harness for signs of wear or damage, especially in vehicles exposed to harsh road conditions.
- Keep the sensor housing free from oil, grease, and dirt; use a mild solvent if necessary.
- Avoid excessive vibration by ensuring all mounting bolts are tightened to spec during installation.
Troubleshooting Common Issues
| Symptom | Possible Cause | Recommended Action |
|---|---|---|
| No ABS warning light illumination | Sensor disconnected or damaged | Check wiring and replace sensor if needed. |
| Erratic braking behavior | Inconsistent wheel speed signal | Inspect for debris on the gear teeth; clean or replace sensor. |
| ABS fault codes (e.g., P0335, P0336) | Signal loss from front/rear wheel sensor | Verify connector integrity and sensor functionality. |
| High voltage spikes in the circuit | Electrical interference or grounding issue | Check grounding points and use shielded wiring if necessary. |
Benefits of Choosing ABS 30475
- Enhanced Safety: Reliable wheel speed data ensures the ABS system can perform optimally during critical braking situations.
- Durability: Constructed with high‑quality materials to withstand demanding automotive environments.
- Ease of Replacement: Standardized design allows for straightforward installation across multiple vehicle models.
- Consistent Performance: Maintains accuracy over a wide temperature range, ensuring dependable operation in both hot and cold climates.
Conclusion
The ABS 30475 Wheel Speed Sensor represents a blend of precision engineering and robust construction tailored for modern vehicle safety systems. Its passive magnetic design delivers accurate wheel velocity data essential for the effective functioning of ABS, ESC, and related control modules. By adhering to proper installation practices and routine maintenance, owners can rely on this sensor to provide consistent performance, thereby contributing significantly to overall vehicular safety.
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 27.49 EUR  28.98 EUR |
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| Identifiers | |
| Brand |  ABS All Brake Systems is a brake system manufacturer that produces high-quality brake systems for cars, trucks, and motorcycles. The company is known for its innovative products, excellent customer service, and competitive prices. |
| Model | ABS All Brake Systems 30475 |
| MPN | ABS All Brake Systems 30475 |
| ID | 7008780 |
| Dimensions / Weight | |
| Key Features | |
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