98 astro with oem keyless remote

Yes, a remote from a 97-99 Astro, Suburban, or Tahoe will work- but must be programmed.....use this procedure- Oh and be sure to put a new battery in your remote transmitter if it doesn't already have one...

1. Ground pin 4 to pin 8 of the data link connector (DLC). The receiver will respond as follows:

   -	The doors will lock and unlock within 2 seconds.

   -	The liftgate window release (E54) will be activated within 2 seconds.

2. Simultaneously press and hold the LOCK and UNLOCK buttons on one of the transmitters until the locks cycle. This will take approximately 10 seconds. The receiver will respond as follows:

   -	The doors will lock and unlock within 2 seconds.

   -	The liftgate window release (E54) will be activated within 2 seconds.

   -	Do not wait more then 60 seconds between transmitters or the receiver will exit the programming mode.

3. Repeat step 2 for each transmitter, four transmitter can be programed to this vehicle.
4. Remove the jumper wire from the DLC.
5. Verify that the RKE is functioning correctly:

   -	Lock and unlock the doors.

   -	Activate the liftgate window (E54).

anybody?

If you do not have a oem remote for the vehicle you might just have pwr locks w/o keyless entry.  Should be blk/wht pin 8 @ DLC.  If it is empty you just have pwr w/o keyless.  Keyless module is in pass. kick panel if equiped.