It may mean the wrong door lock module was installed like from a gti or beetle instead of a front door latch from a jetta.
Power door lock module jetta.
As you can see from the scan the rear left passenger door module has no communication.
The power windows sunroof door locks do not work.
I have also repaired broken wires within the door boot i think.
The remote does not work to lock or unlock the doors.
I have replaced the door module i did it about a month ago along with the right side module.
The ccm is wired directly to the window motor control module and this unit is responsible for driving all functions of the door.
The trunk release switch in the door panel does not work.
Go into your jetta and play around with the power lock switches.
If you remove the carrier panel and door lock module from the door you ll see the following.
Unable to lock or unlock trunk.
2008 jetta 2 5 yes i know this is a common issue i just couldn t find anything similar.
The actual door control module is built into the power window motor in each door.
The part number to rule this out horn going off does sound like a door latch module that is causing your problems.
The door lock module is attached to the inside of the carrier panel and is also secured to the edge of the door by the two 8mm triple square bolts in the picture above.
First you need to be 100 sure that the key fob is the culprit.
If your key fob fails to lock or unlock your car all you need to do is to replace its battery.
The door lock module is indicated by the red arrow.
If you use the key in the door handle it locks all 4 doors but immediately unlocks them.
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If the power window motor looses power all door functions will go dead.
Door lock actuator k0003l fits front left driver side for volkswagen beetle jetta golf gti passat replaces vw 3b1837015as 3b1837015ak 3b1837015j.