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Home › Waveforms › 2016 Chevrolet Silverado 1500 › ABS Wheel Speed Sensor

ABS Wheel Speed Sensor

2016 Chevrolet Silverado 1500 · 5.3L V8 EcoTec3 L83

0V0.0V0V20ms/div at 10mph, 5ms/div at 40mph+ | 2V/div at low speed, 5V/div at highway speedac-sine
Sensor Type
variable-reluctance
Waveform Type
ac-sine
Location
Four sensors mounted in steering knuckles (front) and rear axle housing or trailing arm brackets (rear), facing tone rings on hub assemblies
Pins
2-pin connector
0
Timebase
20ms/div at 10mph, 5ms/div at 40mph+
Voltage Scale
2V/div at low speed, 5V/div at highway speed
Trigger
0V, rising or falling edge

Wiring

Front sensors: Gray/Black pair (LF), Tan/Dark Blue pair (RF). Rear sensors: Yellow/Light Blue pair (LR), Purple/Light Green pair (RR)

Expected Voltage Range

At Idle
0V to 0V
At Higher RPM
-8V to 8V

Expected Pattern

AC sine wave with frequency proportional to wheel speed, amplitude increases with speed, typically 48-100 pulses per revolution depending on tone ring configuration

Known-Good Waveform

At 10-15 mph, expect clean sine waves of 0.5-1.5V peak-to-peak with 10-20 Hz frequency. At 60 mph, amplitude should increase to 5-10V peak-to-peak with proportionally higher frequency. All four sensors should show similar waveforms at the same vehicle speed. Waveform should be symmetrical above and below zero with consistent amplitude.

Common Failure Patterns

Low amplitude signal (under 200mV at 10mph) or complete signal loss
Cause: Excessive air gap between sensor and tone ring (usually from worn wheel bearing), sensor mounting loose
Related DTCs: C0035, C0040, C0045, C0050
Erratic or missing pulses, inconsistent waveform
Cause: Damaged or missing teeth on tone ring, metal debris on tone ring, cracked reluctor ring
Related DTCs: C0035, C0040, C0045, C0050
No signal at any speed, dead sensor
Cause: Sensor coil open circuit, damaged wiring from road debris, corroded connector
Related DTCs: C0035, C0040, C0045, C0050

Diagnostic Tips

Silverado 1500 RWD uses integral wheel bearing/hub assemblies - if tone ring is damaged, entire hub must be replaced. Common issue is water intrusion at sensor connectors causing corrosion. Compare all four sensors simultaneously to identify weak or failing sensor. Air gap should be 0.020-0.050 inches - check with feeler gauge if accessible.

Related Diagnostic Trouble Codes

C0035C0040C0045C0050
Always confirm waveform data with your vehicle's OEM service manual before diagnosing.

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