C0282

Code

Generic C — Chassis

ABS wheel speed sensor circuit malfunction (right rear)

Brand: Generic

Type: C — Chassis

Views: UK: 8 EN: 12 RU: 11

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Page language: EN

Causes

Open or shorted wheel speed sensor wiring (right rear)
Corroded, loose or contaminated connector at the sensor or harness
Faulty right rear wheel speed sensor (passive or active type)
Damaged or missing tone/r reluctor ring on the hub or axle
Excessive air gap between sensor and tone ring or bent sensor
Wheel bearing damage causing sensor/tone ring misalignment or noise

Symptoms

ABS warning lamp illuminated
Traction control/ESC lamp may also be on or disabled
ABS/traction control intervention may be lost on slippery surfaces
Possible inaccurate speed reading or stability control warnings
No obvious change in normal braking feel at low speeds (until ABS activates)

What to check

Read ABS module for C0282 and any related codes; view freeze-frame and live wheel speed data with scan tool
Visually inspect sensor, connector, and wiring harness for damage, corrosion, or crush points at wheel, axle and routing
Check sensor connector pins for corrosion, bent pins or moisture
Measure sensor resistance with meter (for passive sensors) and compare to specification
Back-probe sensor connector to check supply voltage and signal (for active sensors)
Spin wheel and observe sensor output on oscilloscope/scan tool (AC voltage/frequency or square wave)

Signal parameters

Passive (magnetic) sensor: DC resistance typically ~500–1500 ohms (varies by vehicle) and generates AC voltage that rises with speed (tens to hundreds of mV at low speed, up to several volts at higher speed)
Active (Hall/VR) sensor: square-wave or pulse with 0–5V (or sometimes 0–12V) amplitude; frequency increases with wheel speed
Typical frequency: proportional to wheel rpm (e.g., several Hz at slow roll, increasing linearly)
Expected waveform: clean sine-like AC for passive sensors; clean square pulses for active sensors without dropouts or noise spikes
Voltage supply for active sensors: usually regulated 5V (check vehicle specification)

Diagnostic algorithm

Connect a scan tool, confirm C0282, record freeze-frame, and compare wheel speed readings for all four wheels at slow drive or while spinning wheel.
Visually inspect right rear sensor, connector and wiring for damage, corrosion, or separation points. Repair or clean as needed.
With ignition off, disconnect sensor connector and measure resistance across sensor terminals (if passive). Compare to spec. Infinite or out-of-range = replace sensor.
If active sensor, back-probe connector with ignition on and crank/wheel spin to verify reference voltage and signal present. If no reference, trace power/ground to ECU.
Spin wheel (vehicle raised and secured) and observe real-time sensor output on scan tool or oscilloscope. Look for missing pulses, low amplitude, noise or intermittent signal when harness is moved.
Inspect tone/reluctor ring for missing/damaged teeth, heavy rust or debris. Check air gap and alignment between sensor and ring. Repair/replace as required.
Check continuity and resistance between sensor connector and ABS module pins; look for short to ground or battery and chafed wiring under suspension travel.
If wiring and sensor test good but fault persists, substitute a known-good sensor or swap right rear sensor with another wheel (if identical) and observe if code follows sensor.
After repair or replacement, clear codes and road test to verify wheel speed readings are correct and C0282 does not return.
If code remains with verified good sensor and wiring, investigate ABS module driver/output circuit or consult manufacturer-specific diagnostics.