HI I would like to ask the next 07 Jeep Liberty has several TPM receiver module is a front and a back or just one? My car's four tire pressure transmitter lost three, I bought a new tire pressure transmitter, but only show a tire of the tire pressure, I want to ask him a few receiving module, I want to by what kind of way to fix it? Distributors in China that need a computer code, they do not provide this service, because the Jeep Liberty in China rarely, you great God can provide relevant parts of links to online shopping, you in the repair of the TPM whether need to be coded, I very want to repair it, because I am in China, the shipping is very expensive, I hope to restore the accessories. Thank you very much