Question about 2002 Toyota Camry

1 Answer

Power locking system

The power locks work when the car is placed in drive, but will not unlock. The remote does not unlock them nor does the main switch by the driver.

The remote will open the driver's door only.

Where do I start

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  • nimjewell Sep 12, 2008

    I do not have a remote starter. The remote I was referring to is the key fob. Sorry if I confused the issue.

  • nimjewell Sep 12, 2008

    No, I can push the unlock repeatedly and the other doors will not unlock. They will not unlock by using the button by the driver nor by using the key in the driver's door.

  • nimjewell Sep 15, 2008

    Thanks for the help and advice. For the time being, I have just reprogrammed it so that the doors do not automatically lock when putting the car in gear.

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  • Toyota Master
  • 1,861 Answers

Do you have a remote starter installed in this vehicle? If so, you body computer is probably compromised. Aftermarket remote starters kills the body ECU with unfortunate regulararity.

Posted on Sep 12, 2008

  • 1 more comment 
  • Toyota Ed Sep 12, 2008

    If you push the remote "open" button a second time, after the driver's door unlocks, dor the other doors unlock?

  • Toyota Ed Sep 13, 2008

    Well, unfortunatly, it looks like you need a body ECU. Personally, before I bought one, I'd get a Toyota tech to look at it. Body ECUs are not cheap, and they are a PAIN to install. I have done several in the last couple of years. Same problem as you describe.

  • Toyota Ed Sep 15, 2008

    You are quite welcome. I just wish I could have done a better job for you.

    Toyota Ed

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5 Suggested Answers

  • 65 Answers

SOURCE: 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

Posted on Dec 18, 2008

  • 234 Answers

SOURCE: Drivers Door Lock Problem

You will probably need to replace the power door lock actuator.

Here's a link to one similar to yours.

http://autorepair.about.com/library/a/1g/bl467g.htm

You can probably get a used one from a salvage yard.

Try this site to find one near you:
http://car-part.com

If you need more help post a comment.

Tim

Posted on May 01, 2009

  • 129 Answers

SOURCE: Remote control no longer opens the lock

Sounds like the button to unlock doors on the fob is worn out. You can purchase a new one or used from your local recycle yard.

Posted on Jun 01, 2009

  • 412 Answers

SOURCE: power door locks do not work

2004-2005 CARAVANS HAD A SOFTWARE ISSUE IN THE BODY CONTROLLER..REMOVING AND REINSTALLING IOD FUSE IN UNDERHOOD FUSEBLOCK..THERE IS A SOFTWARE UPDATE FOR THE BODY CONTROLLER FROM CHRYSLER..TAKES ABOUT AN HOUR TO COMPLETE..AS FAR AS I KNOW,THEY ARE ONLY ONES WHO CAN DO THIS

Posted on Sep 24, 2009

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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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:
?€¢
Body control module (BCM)


?€¢
DOOR LKS fuse


?€¢
Driver door lock actuator


?€¢
Driver door lock switch


?€¢
GMLAN serial data link


?€¢
Keyless entry transmitter


?€¢
Passenger door lock actuator


?€¢
Passenger door lock switch


?€¢
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.
?‡'
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.
?‡'
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.
?‡'
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

Hi there key dont work


it could be a problem with the central locking unit. you would need to have the system red on a obd read that does this part of the vehicle, you could try to reset the system key in ignition turn to number 2, press fob doors should lock and unlock with the button pressed. as for the side door this is controlled by the front door on that side this door has to be locked and the pin moved in the lock to send the power to lock the side door. with the central locking not working on the system and you manually locking it it may not be going all the way to lock both doors. or the central locking is not working at all. the fuse for central locking is in the main fuse box.

Mar 24, 2014 | Cars & Trucks

1 Answer

96 Chevy Tahoe won't shift into park unless its done manually. What do I need to do?


If you have a security system , Use your remote to lock and unlock the doors .This should work on flashing lights. ( change remote batteries if weak. For shifter, unlock cable and reset

Mar 11, 2014 | Chevrolet Cars & Trucks

1 Answer

My alarm system isn't working


The power door lock electric actuator motor is defective most likely. You will need to pull the door panel off and test it with a volt meter for power and ground when the power locks are actuated, if the system is powering up the lock motor but it doesn't move the rod then replace it,.

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2001 Mercury Villager keyless remote is malfunctioning


Keyless Entry
The keyless entry system consists of the following:
  • smart entry control(SEC)/timer module
  • keyless entry remote transmitters
  • power door lock actuators
  • body side door power door lock actuator
  • liftgate actuator
  • power door lock switches
  • door ajar switches
  • Principles of Operation
    All doors can be locked at once by turning the door key lock switch to the locked position. An individual door can be unlocked by moving the door key lock switch to the unlocked position and turning it again within five seconds; all the doors (including the liftgate) will unlock.
    The smart lock system is designed to keep the driver from locking his keys in the car. It will lock and then unlock all the doors if the smart entry control(SEC)/timer module detects the following conditions:
    • The ignition key still in the ignition.
    • A front door is open.
    • A door lock switch has been pushed to the lock position.
    The panic feature has a duration of 30 seconds from the last time the PANIC button is pressed. When locking the doors from the remote transmitter, the horn chirp/lamp flash feature can be disabled or enabled by holding the LOCK and UNLOCK buttons for two seconds. The hazards will flash three times to confirm that the feature has be enabled or disabled.
The control module probably see's an input that shouldn't be there . lock Switch , door ajar etc... Don't think it has anything to do with the remote . Some part stores have a tester to see if signal from the remote is working . Or the dealer ! Take it an see if your remote is sending a signal without you pressing any buttons .
If it is you need a new one .

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1 Answer

Drive side power door lock is not working


If the door lock works ok with a key, I would say the lock actuator is failing. Its a small electric solenoid that moves the lock rod.

Jun 26, 2012 | 2008 Hyundai Veracruz

1 Answer

The back door won't unlock or open and the front doors won't unlock by the remote


Simple enough to reset the power locking system:
1) make sure battery in remote is good, if in doubt replace it. Next unlock all the doors and keep them closed.
2) Jack up the car and you'll find the power lock reset button above the fuel tank. If you cant reach it drop the tank down slightly until you are able.
3) Depress the power lock reset button, then get inside the car and hold the unlock button on the remote for 2 min.
4) The system will reset when you get out of the car and hold the lock button for another 2 min while circling the car briskly.

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Have a 2004 Chevy Venture van with faulty power door locks. They will lock with the switch but will not unlock with the switch. Need schematics of the power door lock system. Thanks.


I don't have a solution, but a related problem. Our 2004 Chevy Venture power door locks are cycling (locking/unlocking) on their own while we are driving. This coincides with our remote keyless entry losing its effectiveness. I tried replacing the battery on the remote, but to no avail.

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I have a 98 GMC JIMMY. Remotes and Dome Lights stopped working. Car would start then immediately die. Took it to the dealer and they stated it was the Body Control Modual (BMC). Picked up the vehicle...


Keyless Entry System Circuit Description
The Power Door Locks/Remote Keyless Entry control system provides several functions. The driver operates the vehicle door locks and rear window release from outside the vehicle using a hand-held radio transmitter. The transmitter sends coded signals to the remote control door lock receiver. The remote control door lock receiver detects and decodes the signal from the transmitter. The remote control door lock receiver issues signals to the body control module (BCM) through a serial data link. The BCM actuates relays to lock and unlock the doors and liftgate. The BCM can also release the liftglass. The power door lock switches provide manual control of the door locks.


Transmitter Programming
Important: Different keyless entry systems are used on General Motors vehicles. The parts are not interchangeable even though the parts may appear to be similar. Observe the back of the transmitter in order to properly identify the system. On 1998 S/T pickups and utilities, use a transmitter identified with GM/UTA preceding the part number.
With the driver door closed, hold down the power unlock button on the door panel.
Turn the ignition switch to the ON position.
Turn the ignition switch to the OFF position.
Turn the ignition switch to the ON position.
Turn the ignition switch to the OFF position.
Release the power unlock button on the door panel.
The remote control door lock receiver will respond in the following manner in order to indicate that the receiver is in the programming mode:
6.1. Locking the doors
6.2. Unlocking the doors
Important: All extra transmitters must be programmed at this time. When a new transmitter is programmed, it will deactivate the old transmitters.
Hold down the lock and unlock buttons on the transmitter until the remote control door lock receiver will respond in the following manner:
7.1. Locking the doors.
7.2. Unlocking the doors.
Repeat step 7 for each additional transmitter.
Turn the ignition switch to the ON position in order to exit the transmitter programming mode.

May 04, 2017 | 1998 GMC Jimmy

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