Nissan Repair: 2002 Infiniti QX4 - No Power Door Locks, 2002 infiniti qx4, infiniti qx4


Question
Hello ! And how are you-? You've been great help to me in the past when I first worked on this vehicle 7 months ago. Its was flooded from Katrina, and you gave me some great advice. I finally got it running after changing all the harnesses. The only thing that is not working are the power door locks. I changed the smart entry control box. And it chimes when the door is left open and so on. I also changed all the door wire harnesses too. Fuses and relays are fine. The only thing I changed for the doors were new switches for all the doors and the driver side actuator. I didn't changed the rest of them yet. So I am thinking its not getting a signal from the other actuators so thats why its not working-? I don't know if its run in a series or parallel circuit-? Anyhelp would be great, thank you !

Answer
Anil,

The door lock system runs in parallel but come up to the master switch where they all combine.  I would check each -pin switch that turns the lights on when the door is open.  Also, the drivers side door lock where you put the key in.  Also, replace the other swtiches on the back doors.  Email me back with what you find.