Question about Cars & Trucks
Nissan patrol Gu 1998 st
Probably a bad input signal to the module that controls the lock & unlock , central locking system is controlled by smart entrance control unit .
You can watch this video , is an american vehicle with switch input to the BCM - electronic control unit .
Door Locks Go Crazy 1
Door Locks Go Crazy 2
Door Locks Go Crazy 3
Finding a repair manual an looking at wiring diagrams for the lock circuit an looking to see what all is involed an testing like the guy in the video .
Posted on Dec 12, 2017
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Posted on Jan 02, 2017
If the locks are working whilst you are driving then more and likely it is the actual door lock assy that is bad. the solenoid go bad and can cause erratic operation. But unfortunately they are only available with the whole door lock/latch assy.
I would disconnect the drivers and see if the problem still exists.
Posted on Sep 22, 2008
The humming is the central lock vacuum pump running..You either have a leak in one of the lines, or one of the hoses has popped off
Posted on Sep 18, 2009
there is a switch attached to the back of the door lock that opens all doors, it may have fallen off or become damaged, or the mechanical connection to the lock may have snapped.
if the door itself does not even open with the key on its own, the lock mechanism has become detached from the locking rods inside the door, you would need to take off the door panel and look / feel inside near the lock, there is a thin rod connected to the actual locking part and the part the key is inserted into, as well as the internal lever to open or lock the car, it may have popped off. The key-lock itself is usually held on by a thin flat round circlip-washer affair, this may have slipped out too and the key-lock is not connected any more.
Posted on Oct 24, 2009
No, likely to be caused by the actuators in the lock mechanism failing usually causing the door to remain locked. The boor door can also fail this way, as do the front side doors. Replacement requires the whole lock unit to be replaced at a cost of roughly £60 a lock, and a hours work. Helps if you have small hands. Requires a full strip down of the door and you will need the lock unit, trim clips (a few quid) and a trim removal tool (tenner). You can bodge with a flat head screwdriver, but the tool does help prevent damage to the clips & trim panel.
Posted on Feb 22, 2010
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