34.91 GBP
ABS 30406 Wheel Speed Sensor
ABS All Brake Systems (8717109515473 / 30406) | Abs front, Oe replacement, Wheel Speed, Abs wheel speed sensor
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ABS 30406 Wheel Speed Sensor
The ABS 30406 Wheel Speed Sensor is a critical component in modern vehicle safety systems, providing precise wheel rotation data to the Anti‑Lock Braking System (ABS). This sensor converts mechanical wheel motion into electrical signals that enable the ABS controller to modulate brake pressure and maintain vehicle stability during hard braking.
Design & Construction
The sensor is engineered with a robust housing that protects internal electronics from vibration, temperature extremes, and road debris. Its compact form factor allows seamless integration into wheel hubs or brake assemblies without compromising space for other components. The 30406 designation indicates the specific model series, ensuring compatibility with a wide range of vehicle platforms.
Operating Principles
The core function of the ABS 30406 Wheel Speed Sensor is to detect wheel rotation speed. It typically employs one of two technologies:
- Hall‑Effect Sensors: Generate a voltage pulse each time a magnetic field passes through the sensor, producing a frequency proportional to wheel speed.
The sensor outputs a high‑frequency pulse train to the ABS control unit. The controller counts pulses over time intervals to calculate instantaneous wheel speed and detect any discrepancies between wheels—an essential cue for anti‑lock braking intervention.
Compatibility & Vehicle Integration
Designed for both front and rear axle applications, the 30406 sensor is compatible with a broad spectrum of passenger cars, light trucks, and SUVs. Its standardized mounting interface allows straightforward replacement in vehicles that originally shipped with this model. The sensor’s electrical characteristics—voltage supply, current draw, and signal output—are engineered to match the specifications of most ABS modules.
Installation Guidelines
Proper installation is vital for reliable operation:
- Disconnect Power: Ensure the vehicle’s battery is disconnected to prevent accidental electrical shock or short circuits.
- Remove Existing Sensor: Use a suitable socket or wrench to detach the old sensor from the wheel hub. Take note of any retaining clips or bolts that secure the unit.
- Align New Sensor: Position the 30406 sensor so its magnetic field aligns with the wheel’s metallic components (e.g., brake rotor). Many sensors feature a built‑in alignment indicator to aid this step.
- Screw in Place: Secure the sensor using the original mounting hardware. Tighten bolts to the manufacturer’s torque specifications to avoid over‑ or under‑tightening.
- Reconnect Power and Test: Reconnect the battery, start the vehicle, and verify that the ABS light remains off. Use a diagnostic scan tool to confirm proper sensor readings if available.
Maintenance & Longevity
The ABS 30406 Wheel Speed Sensor is designed for long‑term reliability with minimal maintenance. However, routine checks can preempt failures:
- Inspect the sensor housing for cracks or corrosion.
- Verify that wiring harnesses are free from fraying and secure connections.
- Check for debris accumulation around the sensor’s magnetic field area; clean gently if necessary.
Replacing a faulty sensor promptly prevents loss of ABS functionality, which could compromise braking performance and vehicle safety.
Troubleshooting Common Issues
| Symptom | Possible Cause | Recommended Action |
|---|---|---|
| ABS warning light illuminated | Sensor misalignment or failure | Inspect sensor alignment; replace if damaged. |
| Uneven braking between wheels | Differential sensor output | Check for wiring shorts or sensor contamination. |
| No brake modulation during hard stops | Sensor not sending pulses | Verify electrical continuity; replace sensor if needed. |
Technical Specifications
- Model: 30406
- Type: Hall‑Effect / Inductive (depending on variant)
- Operating Voltage: 12 V DC
- Signal Output: Pulse frequency proportional to wheel speed
- Temperature Range: –40 °C to +120 °C
- Mounting Interface: Standardized axle hub attachment
- Dimensions: Compact, designed for tight installation spaces
Conclusion
The ABS 30406 Wheel Speed Sensor plays an indispensable role in maintaining vehicle stability and safety during braking. Its durable construction, precise signal generation, and broad compatibility make it a reliable choice for both OEM installations and aftermarket replacements. By following proper installation procedures and conducting regular inspections, owners can ensure that this critical sensor continues to perform its life‑saving function throughout the vehicle’s service life.
| This product in Comparor | |
|---|---|
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Category
This product is cataloged in our store in these categories
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- Wheel Speed |
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International
Find this product in one of our international stores
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 28.81 EUR  20.71 EUR |
| Colors
Predominant colors of the product |
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| Tags | Abs front Oe replacement Wheel Speed Abs wheel speed sensor |
| 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 30406 |
| MPN | ABS All Brake Systems 30406 |
| ID | 8737961 |
| Dimensions / Weight | |
| Key Features | |
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