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Key/door power lock does not work

Key/door power lock switch does not work

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A short term fix is to pull the IOD fuse, wait about 10 seconds then replace it again. You'll have to reset your clock, which is annoying but the locks will work again. In the past 3 days, I've had to pull this twice because my locks quit--Hoping to find a more permanent solution.

Posted on Sep 08, 2009

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2002 Cadi Deville, can't get any locks to operate with remote or dash push buttons, the remote operates everthing but the locks! When the remote door lock is pressed, lites flash,horn blows locks not.


Power Door Lock Operation
The vehicle is equipped with power door locks. Each lock actuator is powered and controlled by the door module mounted in the individual door, but the rear integration module (RIM), which is the master control for the door lock system, determines when the lock functions are permitted. The RIM receives and examines the requested lock function from the individual door modules, or from the remote function actuator (RFA) via the class 2 serial data circuit. The RIM also examines the transmission shift selector position and the ignition switch position information available over the Class 2 serial data circuits. If the RIM determines that a lock or unlock function is permitted, it sends a class 2 message back to the individual door modules commanding them to perform that Lock or Unlock function.
Power Door Lock Components
The power door lock system consists of the following components:
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Driver door lock switch


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Passenger front door lock switch


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LH rear door lock switch


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RH rear door lock switch


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LH middle door lock switch (w/ V4U)


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RH middle door lock switch (w/ V4U)


?€¢
Driver door switch assembly (DDSA)


?€¢
Driver door module (DDM)


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Passenger front door module (PDM)


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LH rear door module (LRDM)


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RH rear door module (RRDM)


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Left middle door module (LMDM) (w/ V4U)


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Right middle door module (RMDM) (w/ V4U)


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Driver door lock actuator


?€¢
Passenger front door lock actuator


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LH rear door lock actuator


?€¢
RH rear door lock actuator


?€¢
LH middle door lock actuator (w/V4U)


?€¢
RH middle door lock actuator (w/ V4U)


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Driver door cylinder unlock switch


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Rear integration module (RIM)


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DRVMDL fuse (10-amp)


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PASS MDL fuse (10-amp)


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RRDR MDL fuse (10-amp)


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Class 2 serial data link

Sep 27, 2016 | 2002 Cadillac Deville

2 Answers

Mervia. Why is central locking not locking any door?


It's only an educated guess. If all other locks switches are working it' either the switch panel itself or an electrical short. Switches are popular, get it checked first

Nov 22, 2015 | Vauxhall Cars & Trucks

1 Answer

Driver door lock doesn t work


You need to test the parts. Does the switch have continuity when actuated? If yes, check the wires for continuity. Will the actuator work when you apply power directly to it? If yes, test the wiring.

Aug 16, 2017 | Dodge Caravan Cars & Trucks

2 Answers

I am adding more info. Whenever I get in the van, I flip the lock knob and it locks all the doors...for me, its a safety feature...suddenly..it didn't work..I tried opening and closing the driver door many...


The "lock knob" actually activates an electric switch that allows current to flow to a series of solenoids (switches) that power the lock/unlock mechanisms in each door. Since your key fob works, the mechanism is OK. Just the electric switch is bad. And only the switch in the driver's door. Replace it and the locks should work properly.

Oct 15, 2013 | Cars & Trucks

1 Answer

Power door locks will not lock except manually


First of all, check ACC fuse in the driver side junction box. The central controller for power door locks is the body ECU. From your description it may be working only partially. Can the doors be locked using a key? If so, this would indicate the actual locking mechanism is OK. Do the front door lock control switches lock the doors?

Oct 25, 2012 | 2002 Toyota 4Runner

1 Answer

Power door lock in door does not work. Door locks will work with key FOB


its probably the master lock switch(drivers door). Gm's have these common problems. If its the master switch, none of the other lock switches will work either. check ur local junk yard

Apr 28, 2011 | 2005 Chevrolet Malibu

2 Answers

The power door locks stopped working on my 2004 Chevy trailblazer EXT. It is a 6 cylinder key fob doesn't work. hatch won't open. fuse under rear seat is not blown.


Sounds like body computer is malfunctioning or the module that controls the door locks lost it's program.Disconnect the battery for few minutes then reconnect and check.In some cases this resets the system computer and all starts working.But if that does not helps then problem has to be checked with the power door lock system.Either a power door lock actuator or the power door lock switch. Usually the most common problems with power door locks are the actuators. They are small electric motors used to lock and unlock the car doors when activated by a switch or remote. Like any electric motor sooner or later it will fail. Replacing an actuator involves removing the interior door panel for access. Some are part of the door latch and some are independent.
Either way, door lock actuators need to be replaced if they are buzzing, working only in one mode or are not working at all. if the problem is with the door lock actuator or just the switch. If a All the door locks, only work when locking and NONE of them work to unlock, then the switch is most likely the cause.

Thanks. Keep updated for any more query. You can rate this solution and show your appreciation

Sep 03, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Power locks don't work with remote or control from


The door lock/unlock input from the driver's key switch goes to the Door Multiplex control unit (main switch), the Door multiplex control unit then sends a signal on the BUS (CAN) circuit to the passenger's multiplex control unit; the passenger's multiplex control unit then controls all the door locks. The passenger's door lock key switch inputs to the passenger's multiplex control unit, if the locks work from the passenger's side key switch but not the driver's side key switch, the most likely cause is the driver's multiplex control unit (main switch) not sending the signal to the passenger's side multiplex control unit. This could also be the drivers side door lock actuator. Hope this helps!

Jan 07, 2010 | 2003 Honda Pilot

1 Answer

Drivers side door power locks and windows control doesn't work.


PULL THE DOOR OFF MAKE SURE THE 2 LITTLE DOOR HANGERS ARE CONNECTED TO THE SWITCH MECHANISM IF IT IS. THEN YOUR SWITCH IS BROKE. GO TO SCHUCKS AND ASK THEM IF THEY CAN ORDER YOU A WHOLE NEW DOOR LOCK SWITCH ASSEMBLY. REWIRE AND TAA-DA!!!

May 04, 2009 | 2002 Jeep Grand Cherokee

1 Answer

Power windows inop


a brake in ur wires in the door,on a 04 grand i had the same problem,in the wire harness were the junction box is rust had broken one of the male prongs

May 04, 2009 | 2004 Jeep Grand Cherokee

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