Key fob reprogrammed

Hello I’m looking to reprogram my key fob the old ones don’t work half the time I got replacement ones and tried to reprogram them and the directions are useless can you help me out the truck is an 2002 4 runner

 

I have used these instruction on my 2002 many times. I DO NOT HAVE THE TOYOTA SECURITY SYSTEM. This will probably not work if you have it.

2002 4 Runner Programming
FCC ID: HYQ1512Y

Factory Part No: 89742-35020

Canada Part No: NA

Programming Notes:

Obtain all remote transmitters for this vehicle.

Step-by-Step Programming Instructions:

1 Start with key out of the ignition, open and unlock drivers door and be sure all other doors and trunk are closed.

2 Insert key into ignition (Do not turn) and pull it out.

3 Perform these steps within 40 seconds.

A. Using the power door lock rocker switch on drivers door perform 5 lock/unlock cycles starting with lock. Use an even pace and try to go about one cycle per second. (1 cycle = 1 lock and 1 unlock.).​

4 Close, then open drivers door.

5 Perform these steps within 40 seconds.

A. Using the power door lock rocker switch on drivers door perform 5 lock/unlock cycles starting with lock. Use an even pace and try to go about one cycle per second. (1 cycle = 1 lock and 1 unlock.)
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Just shy of starting car, Do NOT Start) then back to OFF.
D. Turn the ignition to ON (Just shy of starting car, Do NOT Start)) then back to OFF.
E. Remove the key from the ignition.​

6 Within 3 seconds the power door locks should cycle automatically indicating successful entry into programming mode. Return to step 1 if the locks do not cycle at this point, if they do cycle then continue to step 7.

7 Perform these steps within 40 seconds.

A. Press the lock and unlock buttons on the remote simultaneously for 1 second.
B. Immediately after letting go of the lock and unlock buttons, Press the lock button by itself and hold for 2 seconds.
C. Within 3 seconds the door locks should cycle once indicating successful programming.
D. If the door locks don’t cycle or cycle twice, repeat steps A and B, your remote has not been accepted.
E. Repeat steps A and B in step 7 for each new transmitter.​

8 Close drivers door. Test all remotes. Programming is complete

 

Also, I have read that if you have worn door lock actuators that don't work well, the programming may fail.

Did you replace your FOB batteries?

The fact that your key fobs don't work 100% and only part of the time means your actuators are probably at fault. If you changed the batteries in the fobs, it is rarely the fob that is the problem.