The C0516 code indicates that the ABS control module is receiving an inconsistent or erratic signal from the right rear wheel speed sensor. This typically means the signal is dropping out or fluctuating in a way that does not align with the vehicle's actual speed or the data from other wheel sensors.
Internal failure of the sensor's magnetic element or circuitry leading to intermittent signal loss.
Accumulation of road debris, metallic shavings, or heavy grease on the sensor tip interfering with the signal.
Corroded connectors, frayed wires, or broken circuits between the sensor and the ABS module.
A cracked, rusted, or missing tooth on the reluctor ring causing an irregular pulse signal.
Worn bearings allowing the hub to shift, which changes the air gap between the sensor and the tone ring.
Internal hardware failure within the ABS/Stability module processing the sensor input.
Yes, if the bearing has excessive play, the distance between the sensor and the tone ring can fluctuate, resulting in an erratic signal.
No, it is very uncommon. Because the code specifies a single wheel, the fault is almost always located at the sensor, the wiring, or the tone ring rather than the module.
Yes, standard hydraulic braking functions normally, but the anti-lock braking and stability control systems may be disabled.