Question about 2000 Ford Focus

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Frnt door power locks are screeching and/or locking continuous

The passenger side power lock is screeching each time it is activated. the driver's side power lock is activating multiple times;sometimes have to hit the remote over and over to get the door unlocked.

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  • kscarrera Feb 09, 2009

    I changed battery and used oil;no change. the problem occurs when activating the locks on the doors manually also(no remote).

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  • 1,902 Answers

First replace the battery in your hand set, second drop some all purpose oil into the locks on the door.

Posted on Feb 08, 2009

  • Jeremy Reddick
    Jeremy Reddick Feb 09, 2009

    Have you checked the motor to make sure that the motor is working properly

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1 Answer

Passanger side doors wont lock


From where , any switch ? driver door switch or either passenger door switch . This is a very complex system controlled by modules (microprocessors)
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The driver door switch assembly (DDSA)


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The driver door module (DDM)


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The passenger door module (PDM)


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The rear door module (RDM)


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The LH front power door lock switch


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The RH front power door lock switch


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The LH front door lock actuator


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The RH front door lock actuator


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The LH rear door lock actuator


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The RH rear door lock actuator


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The remote control door lock receiver (RCDLR)


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The power door serial data circuit


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The class 2 serial data circuit


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The DRVMDL Fuse - 10 amp


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The PDM Fuse - 10 amp


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The RRINMDL Fuse - 10 a
Class 2 and Power Door Serial Data Links
The class 2 and power door data circuits are both serial data links. The serial data circuits replace cables in the vehicle by multiplexing (time-sharing) data to and from each device over a single wire referenced to ground. If the power door serial data is lost, both the rear door module (RDM) and the passenger door module (PDM) enters the sleep mode. With the RDM and the PDM in sleep mode, no power door operations are possible.
Your best bet is to take it to the dealer or an ASE certified repair shop .

Feb 20, 2016 | 2003 Buick Park Avenue

1 Answer

Why does my 2004 Chevy Silverado lock and unlock while in drive? When turned off and no keys in ignition the drivers door will unlock on its own a short time later.


Gremlins ! HA HA HA sorry ! First off a little bit on how they work an what all is involved in making them work ! There are a few control modules in the mix , switches ,relays etc...
Door Lock System Components
The power door lock system consists of the following components:
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The driver door module (DDM)

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The passenger door module (PDM)

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The body control module (BCM)

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The driver information center (DIC)

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The rear door lock switch

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The door lock relay

?€¢
The door unlock relay

?€¢
The liftgate lock relay--utility vehicles with liftgate only

?€¢
The reversible door lock actuators in each of the doors and liftgate

?€¢
LOCKS 20A fuse (rear lock/unlock relay supply voltage)

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ECC 10A fuse (liftgate lock relay supply voltage)

Door Lock System Controls
The power door lock system can be controlled by any of the following:
?€¢
A power door lock or unlock switch activation

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A keyless entry transmission

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An automatic door lock function

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A delay lock function

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Door lock cylinder switch activation

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Lockout Prevention

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An airbag deployment

The front power door lock switches are integral components of the driver door module (DDM) and passenger door module (PDM). The switches are two position normally open rocker switches. When placed in either the lock or unlock positions, the switches provide a direct input to the DDM or PDM. The DDM or PDM monitors these inputs and sends a Class 2 message indicating a change in the switch's respective position. Modules which activate the power door lock motors receive the Class 2 message and activate the motor in the appropriate direction to lock or unlock the vehicle's doors and liftgate. The rear door lock switch provides a lock and unlock signal to the body control module (BCM). The BCM upon receipt of a lock or unlock signal will control the rear door lock relays and also send a Class 2 message to the DDM and PDM to perform the appropriate function.
The modules which activate the power lock motors are:
?€¢
The DDM (driver door lock actuator).

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The PDM (passenger front door lock actuator).

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The BCM (both rear door lock actuators and cargo door/liftgate).
The DDM and PDM are directly connected to the respective door lock actuator through the door lock motor lock and unlock circuits. Once a door lock or unlock request has been received, the module will supply battery voltage to one side of the actuator and ground the other causing the doors to lock or unlock.
The rear passenger and cargo doors differ slightly in that they use lock and unlock relays. The relays supply and coil sides receive a constant voltage through the battery voltage supply circuit. The normally closed contacts are connected to ground and the control side is connected to the BCM. Once a door lock or unlock request has been received by the BCM, the BCM will ground the control side of the appropriate relay. This energizes the relay and allows voltage to be applied to either the door lock motor lock or unlock circuits. since the other side of the door lock actuator is connected to the normally closed contacts of the opposing relay to ground, the doors lock or unlock.
The first place to start is have a factory or equivalent scan tool hooked up , one that can read BCM DTC'S - diagnostic trouble codes ! This could lead to a fix faster ! Watch these three videos !
Door Locks Go Crazy 1

Sep 16, 2015 | Cars & Trucks

1 Answer

1997 Jeep Grand Cherokee Laredo 4 x 2, windows and door locks work on driver side, but not passenger side.


sounds like an open power or ground circuit on passenger side,since the door lock and the window,lost its functioning.Both switches would have to be bad at the same time,which is not probable, to be the fault. Unless there is a saftey lock out switch on the drivers panel,controling the passenger side door lock and window.

Sep 02, 2010 | 1997 Jeep Grand Cherokee

1 Answer

Power door lock problem. Driver's door only unlocks with switch or FOB. Passenger door the unlock switch does nothing for all locks. I took the door lock assembly out of the driver's side and hooked it to...


the wires between the door and the pillar may have cracked and create the short. its from swinging the door open and closed position in time. Some will do this mainly on the right side for the harness is so tighter from being shorter that the left side is. I had seen this happen in many Chrysler vehicles

Jan 16, 2010 | Chrysler PT Cruiser Cars & Trucks

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

Power Door Locks don't work


driver's door module should have a 12v battery feed..if this missing it could explain your problem..module not being powered up..look between driver's door and body..in harness,you may have broken wiring

Apr 25, 2009 | Jeep Cherokee Cars & Trucks

1 Answer

Jeep grand cherokee central locking system


If all the doors do not lock or unlock when using the passenger side switch, then the switch itself is probably bad.   If the passenger side switch locks or unlocks all the other doors except for its own, then the power lock solenoid inside the door is bad or jammed.  If it is jammed, try locking and unlocking the door manually while activating the switch to work its way free.

Dec 13, 2008 | 1996 Jeep Grand Cherokee

1 Answer

96 ford explorer door will not lock with switch


I do have a book on the 1996 but no on me but I have had a problem with it the same, Get in and sit in the drivers set and push lock from the in side and then do the same but this time unlock it and then get out and try to use the remote. if no then try to do the same thing but in the passenger side. lock and then unlock. no then call the ford dealer shop and they have a alarm department that will help you and I know because I had then do a job on one of my other cars and I was charged $20.00 he did it on a side job. Nikki2913

Nov 23, 2008 | 1996 Ford Explorer

1 Answer

2002 toyota celica power door lock problem


Are you hearing any noises from the pass door when you activate the lock switch? If not, the power door lock solenoid has failed, and prob needs to be replaced. Pull the door panel & check to see if it is getting power to the solenoid in lock & unlock. If it has power, the solenoid is def bad.

Jul 10, 2008 | 2002 Toyota Celica

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