Hello all, I have owned my 99 gs400 for a little over a month and I love it. I have only had one problem which is the starter which I have not replaced yet. Anyway, yesterday I started having a problem with my keyless entry. It has worked fine the whole time I've had the car then all of a sudden it's acting screwy. It began when I got out and tried to lock the car with the fob.....nothing, red light on fob so it's working. Lock, unlock, trunk button do nothing. All actuators work because switch on drivers door still locks and unlocks everything. Checked all fuses, went online to try to figure out how to reprogram fob, found it, still no luck......but while trying to reprogram, realized that if I lock the car from the drivers door first and get out and close the door, everything on the fob works again until I hit the unlock button which at that point will unlock the car, and put down all of the windows and slide the sunroof back, then the fob will not work again until I lock the doors with the switch. Any help is greatly appreciated.
Also, the problem is happening with both of my master keys, so doesn't seem like the fobs need to be reprogrammed. Seems like something on the cars end.
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Last edited by Bullitt180; Yesterday at 05:04 AM..
I second a actuator. I've had the same problem for quite a while and too must lock the driver door manually for the fob to work and yup, works intermittently. Also, try opening each door and making sure that each door turns the dome lights on, IIRC the actuator is the unit that has the door "open/close" sensor on it.