TRW Automotive AfterMarket GBS1317 ABS Sensor

TRW Automotive AfterMarket GBS1317 ABS Sensor

The TRW GBS1317 is a high‑performance wheel speed sensor designed for modern vehicles equipped with ABS (Anti‑Lock Braking System), TCS (Traction Control System), and ESP (Electronic Stability Program). It delivers precise wheel rotation data to the vehicle’s control modules, ensuring optimal braking performance and vehicle stability.

Key Functionalities

• Accurate Wheel Speed Measurement: The sensor converts mechanical wheel rotations into electrical signals with high fidelity, enabling real‑time monitoring of each wheel’s speed.
• Robust Signal Output: It outputs a reliable digital pulse train that is compatible with the vehicle’s ABS/ESP control unit. The signal frequency ranges from 0 to 1 kHz, matching industry standards for wheel speed sensing.
• High Durability: Constructed with corrosion‑resistant materials and a sealed housing, the GBS1317 withstands harsh automotive environments—temperature extremes, vibration, and exposure to road salts.
• Low Power Consumption: The sensor operates on minimal current (30 mA), reducing load on the vehicle’s electrical system while maintaining performance.
• Compact Design: Its small footprint allows seamless integration into existing wheel hub assemblies without requiring extensive modifications.

Technical Specifications

Installation Guide

1. Remove the Existing Sensor: Detach the wheel hub assembly and carefully disconnect the old wheel speed sensor. Note the orientation of the sensor’s connector for correct reinstallation.
2. Prepare the New GBS1317: Inspect the sensor for any physical damage. Ensure the magnetic ring (if applicable) is intact and properly aligned with the wheel rim.
3. Mount the Sensor: Position the GBS1317 in the hub’s designated slot, aligning it with the wheel’s rotation axis. Secure it using the supplied mounting screws or retaining clip.
4. Connect the Wiring Harness: Attach the sensor’s connector to the vehicle’s harness, matching pin configuration exactly. Verify that the connection is firm and insulated.
5. Test the Signal: With the wheel spinning (either manually or via a test rig), observe the sensor output on an oscilloscope or diagnostic tool. Confirm pulse frequency corresponds to expected wheel speed.
6. Reassemble the Hub: Replace all hub components, ensuring no interference with brake rotors or suspension parts.

Benefits Over OEM Parts

• Enhanced Reliability: The GBS1317’s sealed construction reduces failure rates caused by moisture and debris.
• Consistent Performance: Hall‑effect technology provides stable output across a wide temperature range, improving ABS response during extreme driving conditions.
• Easy Replacement: Its standardized mounting interface allows quick swaps without specialized tools.

Applications and Compatibility

The TRW GBS1317 is engineered for vehicles that utilize the 1317 sensor series. Common applications include:

• BMW Models: 1 Series, 3 Series (Touring & Coupe), and other models equipped with ABS/ESP.
• Audi Vehicles: Certain A4/A6 platforms requiring wheel speed input for stability control.
• Mercedes‑Benz: Models that integrate the GBS1317 into their braking architecture.
• Other OEMs with compatible sensor mounts and electrical interfaces.

Maintenance Tips

• Inspect the sensor’s connector for corrosion every 12,000 miles or as part of routine service intervals.
• Avoid excessive vibration by ensuring all mounting bolts are torqued to specification.
• If the vehicle exhibits ABS warning lights, verify sensor integrity before diagnosing other components.

Conclusion

The TRW GBS1317 ABS Sensor delivers reliable wheel speed data essential for modern safety systems. Its durable construction, precise signal output, and straightforward installation make it a preferred choice for technicians seeking performance and longevity in vehicle braking and stability modules.