Central locking issues

[Dciw]

Hello. I’m new to the forum. Can anyone help? my 2007 pathfinder (my pride and joy) has started requiring me to randomly unlock it from the passenger side and then silence the alarm with the fob. Normally it works fine from the fob or the door buttons but then it randomly stops working. Once unlocked it goes back to working again for a while. I’ve changed batteries etc but I am out of ideas. Thank you 

[Trevor]

I would check the door switch which signals the system that the door is opened or closed and can trigger the alarm if wrong signal given

Open in each door including bonnet, load area and all others to see if the interior light comes on and goes out after a while

 

[Dciw]

Thanks Trevor I will test this tonight. 

[Dciw]

Tried all the doors, they all put light on with a delay. Boot and tailgate both put light on and straight off. Is this the issue? 

[Trevor]

no that seems fine as long as the lights switch on and off

I wonder if the drivers door lock is faulty as it should control the rest of the doors locking and unlocking
The fob may be faulty but try a quality battery and also check any microswitches for the buttons that may have become detached from the circuit board

[Dciw]

Thanks again. I’ve put in new batteries and tried the other fob for a while before. It is so random I am wondering if the door keyless buttons send a signal like the fob or they are hardwired. I’m thinking possibly the rf receiver is getting old and cranky like the rest of us….