51.48 GBP
ABS 30338 Wheel Speed Sensor
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ABS 30338 Wheel Speed Sensor
The ABS 30338 Wheel Speed Sensor is a precision component designed to monitor the rotational speed of a vehicle’s wheel, providing critical data to the Anti‑Lock Braking System (ABS) and Electronic Stability Control (ESC). By converting mechanical rotation into an electrical signal, this sensor enables real‑time detection of wheel slip, allowing the braking system to modulate pressure and maintain traction during emergency stops or slippery conditions.
Key Functionalities
- Passive Hall Effect Technology: Utilizes a magnetic field to generate voltage pulses without requiring an external power source for signal generation.
- High Accuracy: Delivers precise wheel speed measurements with minimal error, essential for optimal ABS performance.
- Robust Construction: Encased in a durable housing that resists impact, vibration, and exposure to road debris.
- Wide Operating Temperature Range: Functions reliably from -40 °C to +85 °C, accommodating diverse climates.
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | 30338 |
| Type | Passive Hall Effect Wheel Speed Sensor |
| Signal Output | Square Wave (Pulse Frequency) |
| Voltage Range | 12 V DC (typical automotive battery voltage) |
| Operating Temperature | -40 °C to +85 °C |
| Dimensions | Approx. 30 mm × 20 mm × 15 mm (varies by manufacturer) |
| Weight | ~50 g |
| Mounting Type | Standard wheel hub mounting with integrated cable connector |
| Compatibility | Designed for rear‑wheel applications on a wide range of vehicles, including Suzuki models such as the Liana and other platforms requiring ABS sensor 30338. |
Installation Guide
- Safety First: Disconnect the vehicle’s battery to prevent accidental electrical discharge.
- Remove Existing Sensor: Detach the wheel, then unscrew the old sensor from the hub. Carefully disconnect the wiring harness.
- Prepare New Sensor: Align the sensor’s magnetic gap with the wheel’s rotating element (usually a toothed rim or magnet).
- Mount Securely: Fasten the sensor to the hub using the supplied mounting screws. Ensure tightness to avoid vibration.
- Reconnect Wiring: Attach the harness, matching polarity and connector type exactly as per manufacturer instructions.
- Test Functionality: Reconnect the battery, start the engine, and observe the ABS control module’s diagnostic lights. A steady pulse frequency indicates proper operation.
Compatibility Overview
The ABS 30338 Wheel Speed Sensor is engineered to fit a variety of vehicle platforms that employ the same sensor architecture. Commonly found in:
- Suzuki Liana – rear‑wheel ABS and ESP integration.
- Other Suzuki models with similar hub geometry.
- Automotive systems requiring a passive Hall effect wheel speed sensor of the 30338 series.
Benefits to Vehicle Performance
- Enhanced Safety: Accurate wheel speed data allows ABS to prevent wheel lockup during hard braking, reducing stopping distances on wet or uneven surfaces.
- Improved Stability: By feeding information to ESC, the sensor helps maintain vehicle trajectory during sudden maneuvers.
- Longevity: The robust housing and sealed construction protect against contaminants, extending service life.
- Ease of Maintenance: Standardized mounting and connector design simplify replacement procedures.
Troubleshooting Common Issues
| Symptom | Possible Cause | Recommended Action |
|---|---|---|
| ABS warning light illuminated | Signal irregularity or loss of sensor output. | Check wiring continuity, connector integrity, and sensor alignment. |
| No braking assistance during hard stops | Sensor not generating pulses due to obstruction. | Inspect wheel rim for debris; clean or replace sensor if damaged. |
| Erratic vehicle behavior under braking | Inconsistent pulse frequency. | Verify sensor mounting torque and ensure no vibration-induced misalignment. |
Maintenance Tips
- Regularly inspect the wiring harness for corrosion or fraying, especially in high‑humidity environments.
- Keep the sensor housing clean; use a soft brush to remove road grime without damaging seals.
- During routine brake system checks, confirm that the sensor’s signal is within manufacturer specifications using an oscilloscope or diagnostic scan tool.
Conclusion
The ABS 30338 Wheel Speed Sensor plays a pivotal role in modern vehicle safety systems. Its passive Hall effect design delivers reliable, high‑precision wheel speed data essential for ABS and ESC functions. With robust construction, wide temperature tolerance, and straightforward installation, this sensor ensures that drivers experience optimal braking performance and stability across diverse driving conditions.
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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 30338 |
| MPN | ABS All Brake Systems 30338 |
| ID | 7008678 |
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