IS F (2008-2014) :: C0210 And C0215 Rear Speed Sensor Codes?

While I was on my way to the Summit Point for a track weekend last month a CHECK SYSTEM warning light came on. I checked the code at the first Advance Auto I came across and found the codes "c0210 ABS Right Rear Speed Sensor CURRENT" and "c0215 ABS Left Rear Speed Sensor CURRENT". With the check system light on I couldn't use cruise control. I was worried that I didn't have rear ABS function, but after performing a few high speed threshold braking tests everything felt stable...so I continued and did a full 8 track sessions over the next 2 days.

The check system light came on within 40 miles of mounting new aftermarket wheels and tires. The check system light would usually go away after the car had sat for a day, but would come back on after 10-20 miles of driving.

My tags have just expired and I need to pass emissions now. I put my stock rear wheels back on so that I can avoid the codes and pass the Maryland OBDII emissions check. Everything was fine, but the check system light just came on for the first time with the stock rear wheels mounted (and before I could pass emissions)...though it took 150+ miles of driving before the check system light came on.

I would love to avoid purchasing new speed sensors, which seem to run $150+ each.

A quick internet search showed one Toyota SUV owner mostly fixed the problem by removing and cleaning the speed sensors and then dielectric greasing the connectors and coating the outside with silicon.