My locking system on infiniti j30 is acting crazy. my driverside door doesnt want to lock the penger door?

when i turn the key to lock the door, all doors lock but the penger. i check the motor on both doors, but it works. and when i turn the key on the penger door, it locks all doors but the driver. and also when i push the lock on on the driver side door it locks all doors but the driver side door. i dont know what is going on here, If there is anyone that can help me in this situation. please