don't know if this falls into your category of causes for this problem but hear it is.my passenger side rear window will not unlock unless i do it manually from the handle.it happened when i first got the car.then stopped when i switched out the battery and then just randomly started happening again.i ended up disconnecting the battery to do some radio work also hoping it could get that lock working again.no luck.i also managed to set off the air bag light in the process.any ideas as to whats going on?