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Counting Wheel Sensor
The Counting Wheel Sensor is a precision rotational speed sensor that measures the movement of the counting wheel (tone wheel) and sends accurate pulse signals to the ECU for proper ABS, traction control, and drivetrain monitoring.
This sensor uses advanced magnetic or Hall-effect technology to ensure accurate detection even in harsh conditions such as heat, dust, vibration, and moisture. It plays a critical role in maintaining vehicle safety and performance.
Key Features
- High-accuracy rotational speed measurement
- Magnetic / Hall-effect sensing technology
- Enables ABS, traction control & drivetrain monitoring
- Highly resistant to heat, vibration, and contaminants
- Durable sealed housing for long service life
- Ensures real-time ECU communication
Product Specifications
| GROUP | MODEL | REF. PART NUMBER | SPECIFICATIONS |
|---|---|---|---|
| 21.010 | 3128, 2523, 2528 | A01555422417 | Counting Wheel Sensor – High-precision rotation sensor |
Process Steps
- Locate sensor near counting wheel / tone wheel
- Disconnect the electrical connector
- Remove old sensor and clean mounting area
- Install new Counting Wheel Sensor securely
- Reconnect wiring and ensure sealing
- Test ABS/ECU readings for correct operation
FAQ
What does the Counting Wheel Sensor do?
It measures rotational speed and sends pulse signals to the ECU for ABS, traction control, and drivetrain monitoring.
What happens if the sensor fails?
Issues may include ABS warnings, traction loss, inaccurate speed signals, or drivability problems.
