2003 murano windows problem lock/unlock

My thought is that the ground connection on the unlock relay has been damaged.  This would allow the unlock function to work (lock ground is still good, NO contact on unlock relay still good).  Because of this the lock outputs still work fine.

It almost can't be the actuator itself because the actuator still moves in one direction.  I've never seen an actuator only work in one direction.

you know guys i have one idea .check it out  how about if  kevin is right in your opinion  and i have a bcm problem ok.so  my idea is bring from the other door [in this case i have 3 doors working perfect  lock unlock ] and get there all the wires necessary  for the driver  side and then make a connection ,and isolate the wires from drivers side  just re using the plug with my new wires from the other door . just an idea .of course i will for sure test the wires  as  you guys just told me thanks

yes ricardo you will need four 1N4001 series diodes to accomplish the relay thing, but it would be easier to pick up the actuator motor wires in either on of the doors or the driver floor loom. the relay setup was just to determine the fault of the system.

also kevin i made a mistake with the actuator being the fault, only realized when i re read the thread, my internet's giving me stress, so some of my posts aren't being submitted,

Yes you can use a reverse polarity setup along with the factory rocker switch and eveerything will work just as before except for the central locking if it was present before. What you have to do is locate the actuator motor wires for all four doors, and the two negative trigger wires at the rocker switch, the alarm will be connected to these two wires in the vehicle, you can trace them and you will be cutting both wires of from the bcm side they should only be connected to the rocker switch controls on the driver door. I'll post a diagram of what you need. Or you can purchase dei's 451m it's alot neater and easier.