Question about 2002 Lexus LS 430

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Door actuator does not work

How to change power door lock actuator

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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: power door lock actuators on passenger side doors

these are electric motors, they fail, replace that power lock actuator.

Posted on Jan 06, 2010

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What fuse is it for rear hatch actuator 99envoy


One fuse powers all door lock actuators . The other door locks work ? if so it's not a fues problem .
The following locking functions are included on the vehicle:
• All the doors unlock -- All the doors will unlock, including the endgate/liftgate, when any power door unlock switch is detected. The passenger doors lock directly by pressing the lock switches. The driver door unlocks by the BCM using a driver door unlock relay.
• All the doors lock -- All the doors will lock, including the endgate/liftgate, when any power door lock switch is activated. All the lock actuators will activate directly from the power door lock switch (external to the BCM).
• The end/lift gate lock switch -- All the doors will lock or unlock from the end/lift gate lock switch

You probably have a bad lock actuator

Jun 14, 2017 | Cars & Trucks

1 Answer

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)


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Driver door switch assembly (DDSA)


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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


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Passenger front door lock actuator


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LH rear door lock actuator


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RH rear door lock actuator


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LH middle door lock actuator (w/V4U)


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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

1 Answer

Drivers door will not unlock


Richard, probably a faulty or seized lock actuator.
Check the attached links how to replace actuator.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

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Mar 08, 2016 | Cars & Trucks

1 Answer

Door lock dont always work


What door lock doesn't always work ? One or all of them . This is a complex set up for these door locks ! The switch is an input to the BCM - body control module . There is logic involved in the microprocessor , there are relays built in to the BCM ! Could have a DTC - diagnostic trouble code stored in the BCM ! Could be a bad connection at the BCM or master window switch ! A bad ground !
The power door lock system consists of the following components:
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Body control module (BCM)


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DOOR LKS fuse


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Driver door lock actuator


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Driver door lock switch


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GMLAN serial data link


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Keyless entry transmitter


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Passenger door lock actuator


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Passenger door lock switch


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Remote control door lock receiver (RCDLR)


The DR LCK fuse supplies battery voltage to the body control module (BCM) for the power door lock system. The BCM supplies and monitors a reference voltage to the driver and passenger door lock switches through the door lock switch lock/unlock signal circuit. Each door lock switch receives ground at G300 which is also the ground for the door lock and unlock relays located in the BCM. When a door lock switch is placed in the lock position, the reference voltage is switched to ground and the BCM senses 0.0 volts on the door lock/unlock signal circuit. When a door lock switch is placed in the unlock position, the reference voltage is switched to ground through a 1.5k ohm resistor that is internal to each of the door lock switches and the BCM senses approximately 2.9 volts on the door lock/unlock signal circuit. The BCM interprets what position the activated door lock switch was placed in based on the voltage drop.
The BCM, upon receipt of a lock or unlock switch signal, will switch the appropriate door lock/unlock relay coil control circuit to ground causing the appropriate door lock/unlock relay to energize. With the relay energized, voltage is applied to the door lock actuator control circuit causing the door to either lock, or unlock depending on what command was received from the power door lock switch or remote control door lock receiver (RCDLR). When a power door lock/unlock relay is not energized, the switch contacts are normally grounded through the BCM which provides ground to the appropriate door lock actuator for the lock/unlock function being performed. The power door lock/unlock functions are performed by reversing the flow of voltage through the door lock actuator control circuits. The BCM has three internal drivers for the power door lock system. Driver door unlock, passenger door unlock and all door lock. This is done to isolate the driver door lock actuator so it can be unlocked separately from the passenger door. For additional information concerning keyless entry, refer to Keyless Entry System Description and Operation.
This is one you may want to take to dealer or some other ASE certified repair shop ! To do this right you need a Tech 2 scan tool !
Ignition ON, observe the scan tool Door Lock Switch parameter while using the driver and passenger door lock switches. The parameter should change from Idle to Lock and Unlock.
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If the value does not change, refer to Door Lock Switch Malfunction.

Command the doors to LOCK and UNLOCK with the scan tool, the door lock actuators should LOCK and UNLOCK when changing between the commanded states.
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If one or more doors do not LOCK or UNLOCK, refer to Door Lock Malfunction.

Aug 12, 2015 | 2009 Pontiac Solstice Convertible

2 Answers

What causes a malfunction in power locks?


The power door locks are controlled by the BCM -body control module ! The door lock switch is an input to the BCM .
The BCM, upon receipt of a door lock switch lock or unlock signal, will switch the appropriate door lock actuator control circuits to battery positive voltage. The opposing side of the door lock actuators are connected to ground internally within the BCM through the other door lock actuator control circuit and the doors will lock or unlock appropriately.
First thing to do would be check power an ground circuits at the BCM ! Do you have any other systems not working -power windows etc...
The DR/LCK fuse supplies battery positive voltage to the I/P fuse block for the door lock system. The body control module (BCM) supplies and monitors a reference voltage to the door lock switch through the door lock switch lock/unlock signal circuit. The door lock switch also receives a constant ground source. If a door lock switch is placed in the lock position or unlock position, the reference voltage is taken directly to ground and the BCM detects the voltage drop on the signal circuit.
Should have BCM checked for stored DTC'S - diagnostic trouble codes !
Ignition ON, observe the scan tool Driver Door Lock Sw, Psgr Door Lock Sw, Driver Door Unlock Sw and Psgr Door Unlock Sw parameters while using the driver and passenger door lock switches. The parameters should change between Active and Inactive.
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If the values does not change between the commanded states, refer to Door Lock Switch Malfunction.

Command the driver door and passenger door lock actuators to LOCK and UNLOCK with the scan tool, the doors should LOCK and UNLOCK when changing between commanded states.
?‡'
If a door lock actuator does not perform the LOCK and UNLOCK functions, refer to Door Lock Malfunction


DTC B3130 00: All Door Unlock Circuit

DTC B3135 00: All Door Lock Circuit

Aug 09, 2015 | 2010 Chevrolet Impala

1 Answer

2001 Buick Regal. Power door lock swith will not lock doors.


Remove the door panel and unplug the connector to the door actuator. Probe the contacts with a voltmeter set on DC volts. Then operate the lock/unlock switch. You should see the voltage toggle from +12 volts to -12 volts. If you do, then the wiring, switch and connector are good and you have a bad actuator. Be prepared to start replacing all of them because they all operate the same number of cycles.

Jul 28, 2017 | 2003 Buick Regal

1 Answer

L door dose not lock all door locks


This may be due to a bad lock actuator, i will need to ask a few questions first.Can you lock the door by hand using the button? or is the lever stuck?Is the problem that it does not work with the power locks only?
Let me try to answer these, first if the door lock does not work with the power locks then the door lock actuator may be bad, the door panel will need to be removed and test for power at actuator. While inside the door check lock linkage.If the door lock lever wont move then that may also be related to a frozen lock actuator, that is the same as above. a bad or frozen lock actuator will not allow door to lock or unlock but sometimes a bad actuator will not work with the power button but will allow you to lock and unlock with lock lever or door key, the door panel needs to be removed to check . good day.

Apr 29, 2012 | 2000 Hyundai Sonata

1 Answer

I changed the lock actuator on my 2004 mitsubishi endeavor, but the key fob will not work on that door


check the wires in the rubber boot between the door pillar and the door for a break in the wire or loose plug socket ,check for a feed to the lock with a multimeter as well whilst operating the system as i think this is your problem here -no power

Feb 25, 2012 | 2004 Mitsubishi Endeavor

1 Answer

The power door lock is not working, I have tried to change the power lock which is connected with the door latch, check the fuses


When you were in there to change the lock actuator at the door latch, did you check to see if there was any power at the lock actuator when you pushed the lock button?

Dec 27, 2010 | 1998 Ford Windstar

1 Answer

1993 Buick Regal - electric door locks, my Buick driver's side door stopped unlocking the door by the switch. It was only the driver's door all other doors work fine. I changed the actuator and then the...


did you try changing the master switch(controls all windows and locks)? i would hook it back up to the way it was and change that master switch

Dec 06, 2009 | 1993 Buick Regal

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