Long story short, I had nail removed from my tire, my regular tire shop replaced, but they broke the sensor in the right front wheel. They replaced at no cost with a factory part, but I cannot get it to reset. It's reset briefly a couple times, but will always go back to TPM Malfunction and occasionally before that error I will get "TPM external interference". I have reset it about 40 times at this point, is there anything I can check for short of having to take it in, since I was aghast at what I was quoted for a tire sensor replacement. ($350). Thanks all for any help you can give.