Question about 2005 Dodge Caravan

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Auto door locks

None of my doors lock or unlock except for the rear hatch. any help with this is appreciated!

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There is an update for the body control module that should cure it. the dealer would have to do it

Posted on Jan 11, 2009

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I have a 2005 GMC Yukon that the rear hatch does not lock. Wouldn't be a problem but no manual key hole to lock it. Must be some kind of lock sensor. Is on the driver door panel or by the hatch?


The rear hatch locking is computer contolled .
The BCM also runs diagnostics on the liftgate lock relay control circuit and will set DTC B3825 as current and also send a Class 2 message to the DIC. The DIC will display REPLACE LIFTGATE FUSE to inform the driver that a fault has been detected in the liftgate lock circuit and that the liftgate is not locked. Faults that will set the DTC and cause the DIC to display the message could be any of the following:
• An open ECC fuse
• An open or short to ground in the liftgate lock relay battery positive voltage circuit
• A faulty liftgate lock relay
• An open or short to ground in the liftgate lock relay control circuit
• A short to ground in the liftgate lock actuator lock control circuit
• A faulty BCM

The liftgate lock relay supply and coil sides receive a constant voltage through the battery voltage supply circuit and the ECC fuse. The normally closed contact is connected to ground and the control side is connected to the body control module (BCM). A lock function will occur when a door lock switch activation, keyless entry lock transmission, auto door lock function or a liftgate lock function has been received by the BCM. The BCM will then ground the control side of the liftgate lock relay. This energizes the relay and allows voltage to be applied to the liftgate lock actuator lock control circuit. Since the other side of the liftgate lock actuator is connected to the normally closed contacts of the door unlock relay to ground, the liftgate will lock. When an unlock function occurs the BCM will ground the control side of the unlock relay and the rear doors and liftgate will unlock.
The power door lock system consists of the following components:
• The driver door module (DDM)
• The passenger door module (PDM)
• The body control module (BCM)
• The driver information center (DIC)
• The rear door lock switch
• 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)
• ECC 10A fuse (liftgate lock relay supply voltage)

If i were to guess i would say you mite need a new lock actuator , but i don't guess . You could take the hatch inside panel off an check for B+ voltage for the lock actuation as someone pushes the switch . Or have it checked for codes .

Dec 21, 2016 | GMC Cars & Trucks

1 Answer

How do you open the back door (no manual)


Rear hatch is locked or unlocked with a key. (if equipped) • To open the rear hatch, insert the key into the lock, turn it to the unlock position and pull up the rear hatch by pressing the handle (DOOR). You can also lock/unlock the latch (but not release it) with the central door lock system. • If unlocked, the rear hatch can be opened by pressing the handle (DOOR) and pulling the hatch up. • To close the rear hatch, lower and push down the rear hatch firmly. Make sure that the rear hatch is securely latched.

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How do I open the cargo door if it wont open?


rear door hatch lock repair GMC Chevrolet - YouTube

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Back lift gate/glass would not open or release. Even when unlocked with the key fob or the unlock switch on the drivers/passenger door. ... How To Install Replace Rear Lift Gate handle 2002-09 GMC Envoy Chevy Trailblazer ...

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2 Answers

Read door lock


check the rear hatch electric lock. It may have a wire that came loose from shutting the door hard over time. Hope this helps, good luck.

Mar 07, 2014 | 2009 Kia Sportage

1 Answer

Door lock switch will not unlock doors but will unlock rear hatch and window switch works


i am amazed at the amount of people that dont know about vehicle forums there are at least 5 just for the cherokee alone
try cherokeeforum.com, or naxja.org, or cherokeetalk.com, or jeepgarage.com, jeepsunlimited.com

Feb 07, 2013 | 1996 Jeep Grand Cherokee

1 Answer

Rear door hatch won't unlock at all the remote unlocks all doors except the hatch. Once in awhile it might open


some cars are fitted with a valet key/lock 3 keys supplied new 2 normal 1 with a flute running down the middle.key with flute will not unlock the tailgate/glove box.tailgate has 2 positions key upright=locks with central locking.key turned to the left,(or right,cant remember which)then released to upright,locked,needs key to access.independant of central locking.

Jun 24, 2010 | 2004 Mitsubishi Endeavor

1 Answer

I have a problem with my central locking on my 2005 focus . the obc tells me my rear passeger door is open and the drivers door . so the car wont lock, the luggae compartment is ok . any help with this...


It's unlikely you can rectify this problem by playing around with the CL system so you will need to take it to the dealer or auto electrician to fix.
In any event you should be able to manually lock all passenger doors on the vehicle from inside the car and the drivers door from outside with the key.

Before you take the car to the auto shop to fix the CL system try this if you have not already.

1. Manually lock - then manually unlock - all doors (except the driver's door) from inside the car and make sure they are fully shut.

2. Then manually lock all doors a 2nd time except the driver's door.

3. Hit the lock button on your car key pad to activate the central locking system. This should lock the drivers door but with the fault it probably won't. Wait a few seconds then hit unlock on your key pad. Wait again and then hit lock once more. If it will not lock all doors you know what to do next.

Dec 01, 2009 | 2005 Ford Focus

1 Answer

Problem The rear hatch door will not unlock.


First, on the rear hatch, there is an actuator. On FX, when you close the trunk, it kind of **** the hatch closed all the way. When you press lock on the remote, this same actuator locks it as well.
Now,
1) when you unlock the car from the inside, go back there and press the button to open the hatch door manually, do you here any noises?
2) Close all doors, go back close to the hatch button and using the remote , lock the car and then unlock the car. you should hear a sound from the actuator locking and unlocking the lock on the rear hatch!

If you don't hear this, your actuator is inop.
Next step would be to check the fuses inside the car, on the left bottom driver side, and outside on the battery compartment.
It might be just a fuse.
If all fuses check ok, your actuator is most likely gone! Not ea expensive fix, just time consuming!

NOW, if you can hear the noises, then something is either broken inside the actuator or one of the cables is loose!
Hope that helps.
Also, what year and miles on your fx?

Oct 20, 2009 | 2004 Infiniti FX35

1 Answer

Driver and Passenger auto door locks are inop.


Sounds like bad wiring, or bad door lock actuators. Check for power while locking/unlocking the doors.

Jun 29, 2009 | 2003 Chevrolet Astro

1 Answer

Not precisely a problem ... regarding AUTO LOCK WHEN IN MOTION


Hi mate, sounds like a problem with the phneumatics which trigger the central locking system!, or a sensor, regarding opening all the doors and tailgate, press the open button on your remote twice! or at least thats what i do!

adey1

Jul 31, 2008 | 2007 Audi A3

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