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How do dealers and locksmiths program keyless entry key fobs?

2851 Views 2 Replies 3 Participants Last post by  ABennin
As the title states I'm trying to understand how they do this. I bought a new fob for my 02' online (don't worry I didn't get burned) and can't program it using the DIY steps. What does the deAler or locksmith have that allows them to do what we can't?

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My truck did not come with any key fobs and the only way I know how to program another one is if you have one already. Since mine didn't come with any I took it to the dealer and they had to "program the Remote keyless entry transmitter access codes into the RKE receiver in the central timer module which requires the use of a DRB scan tool". This is what I was told and is on the invoice.
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