If you remove the carrier panel and door lock module from the door you ll see the following.
Power door lock module jetta.
The door lock module is indicated by the red arrow.
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.
Go into your jetta and play around with the power lock switches.
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.
The trunk release switch in the door panel does not work.
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If your key fob fails to lock or unlock your car all you need to do is to replace its battery.
If the power locks seem to be working just fine from within the car then you need to replace your key fob battery.
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As you can see from the scan the rear left passenger door module has no communication.
I have replaced the door module i did it about a month ago along with the right side module.
The power windows sunroof door locks do not work.
The remote does not work to lock or unlock the doors.
The ccm is wired directly to the window motor control module and this unit is responsible for driving all functions of the door.
If the power window motor looses power all door functions will go dead.
Unable to lock or unlock trunk.
I have also repaired broken wires within the door boot i think.
If you use the key in the door handle it locks all 4 doors but immediately unlocks them.
Unable to open windows via switches or key in the door handle.
The actual door control module is built into the power window motor in each door.