[ygbsm601]

I have a 2002 Sonata GLS with similar problems. The main one is with the doorlocks. The doorlocks will lock both with the manual button and the keyless entry FOB, but will not unlock with either. When I press the UNLOCK button on the FOB the front and back lights flash, indicating the system is receiving the signal to unlock the doors, but nothing happens. If I unlock the driver's door with the ignition key and press the manual UNLOCK button, still nothing happens. If I press the manual LOCK button on the driver's door, all doors that are unlocked will lock. I suspect that fixing the problem with the driver's door UNLOCK button will also fix the keyless entry problem. Any opinions out there?