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Where did you get the remote? What procedure specifically did you try? Did the door locks respond.
Procedure that you are using is the correct procedure with the exception that instead of cycling the key twice you could cycle the key onces and pull it out that is the ad mode cycling the key twice is a rewrite mode. Do you have the vehicle identification number for your vehicle?
I need the VIN so I can check the options on this car. Has any remote ever been program to it?
Based on the vehicle identification number I did confirm that this truck was equipped with wireless door locks from the factory. This means you have one of two options either the body ECU which is part of the left instrument cluster/fuse block assembly is bad or the signal going to it from the door locks is not sending the right input or you're not doing the procedure specifically as you have listed out. At this point you cannot even determine if the remote that you got is any good because the system has to go into recognition mode and that would be identified by the single door lock cycle when the procedure is carried out. You might try and get someone else to walk through that procedure the biggest mistake that is made is usually with the door locks. If you do it too fast or too slow it won't work there is a sweet spot that you have to get you literally hit the door locks 10 time 5 on the unlock five on the lock it has to be five complete cycles. Let me know how things go.
Another option which the vehicle identification number does not tell me and that is if this has the port installed RS 3000 system. If it does there will be a module up under the instrument panel there is a button on the side has to be pushed click the following link below or copy and paste to a new browser and read the service bulletin see if it applies to your vehicle and the security system that you might have installed on this. It is important to make sure that you have the right or remote for the right system also.