It's possible. But it's also possible that there were any number of other, and less expensive, problems. The next time you see the light, even if it goes off, drive to your local chain auto parts store, Advance for example, and have them pull all the stored codes. Write them down and post them up here. Helms sells the real factory service manual for your truck for about $100. In that book there are diagnostic steps for tracking down any code found. It could be a simple lose connector, bad ground, wheel sensor, or even air in the lines. Wrenching yourself is a great way to save some cash!