Initially, a Chevrolet Niva is equipped with a central lock that can remotely control opening. For this purpose, each of the 5 doors has a special device - an actuator. It is responsible for removing the lock when receiving a signal from the alarm system.
But in practice, most problems with opening the rear door are not at all related to the operation of electronic components.
In 95% of cases the problem is related to mechanical parts. This can be either the lock itself or the rods located inside. In some cases, this may be due to the fact that the Chevrolet Niva door seal freezes on a recently washed car. But in this case it is easy to determine the source of the problem, so further we will consider situations in which the problem mainly arises with the operation of the lock.
Why doesn't the back door of a Niva Chevrolet open?
The Chevrolet Niva is equipped with a standard central lock; therefore, each of the five doors has an actuator that unlocks the lock when the central device is activated.
However, as practice shows, electronics are not at all involved in problems with locks.
In 99% of cases, the problem is still in the mechanics , either in the lock itself, or in damage to the rods. We will not consider cases where the door freezes to the body; this is an exception, but most often the owners are let down by the lock.
Broken lock rod (rod is bent)
The rear door lock rod is marked with an arrow.
There are often cases when the lock rods bend not due to improper assembly (although this is possible), but due to the banal entry of dirt into the door cavity.
It all happens something like this: the protective polyethylene film can peel off from the door frame in some places, and because of this, dust gets into the door cavity. Everything would be fine, but dust accumulates not only at the bottom of the cavity, but also on the levers of the lock itself. One fine moment we go to the car wash or get caught in a heavy downpour, the dust turns into dirt and limits the working strokes of the lock.
Trying to open the door with the handle, we make more and more effort, as a result of which the rod bends. It bends until the central locking actuator simply does not have enough movement to unlock the door. Even straightening the thrust, we will not achieve anything.
The rear door is without trim.
There is only one way out in this situation - dismantling the door card, aligning the rods, dismantling, lubricating and cleaning the lock. Moreover, the sooner you do this, the less likely you are to end up with a completely blocked rear door.
Design features, or tricky spring
Jammed trunk lock on a Niva Chevrolet
The rear door lock on the Chevrolet Niva does not have particularly complex mechanisms. The lock is ordinary, it works according to the VAZ principle, the only difference is that it is locked and unlocked by an actuator. Actuators also fail, but this happens extremely rarely. And even in this case, it is always possible to open or close the door manually.
However, this system also has nuances - if you activate the central locking with any door open at least one click, the lock of both the rear and any other door may jam.
Tricky spring.
In most cases, it's all about the spring in the housing , which loads one of the rear door lock levers. Probably, the steel from which the spring is made does not meet the operating conditions, so the spring tendrils often break off . As a result, one of the lock levers lives its own life - it wants, it will lock the lock, it wants, it will open the door on the move. It’s an unpleasant story, so at the first whims of the lock or its drive, it’s worth removing it and eliminating the cause.
Spring failure
Basically, the problem of lock failure lies in the fact that the tendrils of the spring break off, which loads the rear door lock lever. This occurs due to the use of low-quality steel in the production of the part or violations of operating conditions. In any case, such a breakdown leads to the fact that one of the lock levers begins to move in a random direction and it is impossible to predict whether the lock will open at the moment or not.
The lock can jam from the inside if the spring of the traction mechanism, which is responsible for part of the work when opening, is cracked or significantly deformed.
In 30% of breakdowns, the cause of the malfunction is a spring that loads one of its levers. The spring tendrils break off and the lever to which they cling begins to behave completely unpredictably. It is possible that a locked door can unlock and open while moving. The cause of the spring defect: poor, low-quality steel or an incorrectly selected grade of metal. Repairing the mechanism step by step:
- Remove the rear door trim.
- Check the setting.
- Replace the broken spring or reinstall the part if a broken spring is found.
The lock can jam from the inside if the spring of the traction mechanism, which is responsible for part of the work when opening, is cracked or significantly deformed.
In 30% of breakdowns, the cause of the malfunction is a spring that loads one of its levers. The spring tendrils break off and the lever to which they cling begins to behave completely unpredictably. It is possible that a locked door can unlock and open while moving. The cause of the spring defect: poor, low-quality steel or an incorrectly selected grade of metal. Repairing the mechanism step by step:
- Remove the rear door trim.
- Check the setting.
- Replace the broken spring or reinstall the part if a broken spring is found.
Removing the rear door lock on a Chevrolet Niva for repairs
You will have to remove the rear door trim.
Even if the door no longer opens, you can easily get to the lock and unlock it, and then remove it and repair it. This is done like this:
- The rear door door card is removed even when the door is locked. First, unscrew the two screws from the bottom of the door card.
- Remove the window handle by bending the handle with a flat screwdriver and pulling the latch upward.
- Unscrew the screw securing the decorative trim under the door handle, pulling the handle towards you.
- The door card is held on by six pistons - two at the bottom, two at the center and two at the top.
They snap off if you pry them with a long screwdriver. The door card can now be removed. The decorative card has been removed.
Video about removing the lock on a Niva Chevrolet
Opening the door
The lock can be unlocked by pulling the plastic tab of the actuator or another lever; using a long screwdriver, you can move the lock latch itself.
When the door has opened, you can remove the lock, but before that you need to remove the negative terminal from the battery. The lock is held on by fastening screws at the end of the door.
Trunk door lock.
After removing them with a long screwdriver, you need to remove the drive rods, disconnect the terminal blocks and remove the lock from the door cavity along with the actuator . After this, when the lock is in hand, the reason will become visible. In extreme cases, the lock can be replaced. Good luck to everyone and obedient locks!
At the start of production, the Chevrolet Niva was very different from its predecessors. A modern interior, convenient arrangement of instruments on the panel and many other innovations greatly distinguished it and made it more comfortable. But the most important difference was the transformation of the body from a three-door to a five-door. But any equipment is prone to breakdowns, so sometimes the Chevrolet Niva Niva door handle or another part responsible for the normal functioning of the door may fail. This creates many problems and reduces the usability of the car.
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Comments 16
At first there was such a problem, then it would close and you couldn’t open it, then it would open on its own while moving... after the last failure to open with the neighbor in the garage: he pulled from the outside, I kicked from the inside. But the problem turned out to be in the guide, which is at the end of the door, it was wedged... I adjusted it and lost it without any problems, but I also wanted to disassemble the lock and climb through the trim.
I could clearly see how the whole door was frozen, at the edges, I took hot water and poured it all around the door, pulling the handle within reason, after 15 minutes it opened)))
Move the lock button inside which. Up down. Sometimes passengers pull the handle when the electric lock is activated and the door jams.
I had such crap, but everything turned out to be prosaic - I pinched the door in the area of the lock, which was lying in the trunk, and the door was clamped tightly. He reclined the seat and dragged the blanket into the cabin. He tore off the corner, but then he opened the door ☺
There was such a mess, the plastic rod on the lock turned out to have fallen off. I took the trim off and stuck it back in.
bullshit. you have to do it in a brutal way - take an ax and do some shit in the area of the castle! should open in a while!
Yeah after the second rub)))))
well, maybe after the third... you don’t need much there!))))
After the third one I’ll be cutting down the tank)))
I had similar nonsense, I removed the paneling from the inside and moved the rods with my hands and opened it. Then I made an extra spring and spilled water all over it. And I did this with almost every castle. Because there are often problems with opening.
Try to press in the area of the lock (next to the handle) with your hands (to close the door) and then try to open it. It opened for me the second time.
They write to you correctly, fold the rear seats, press down with your foot, and let someone from the street pull the handle, it should open 100%, then fill everything heavily with WD 40 so that everything will flow, my door is jammed due to the dust that has accumulated there, the lock After that I didn’t change it, I spray it more often with VD and everything is good.
The mechanism inside may have become covered. It is inexpensive, around 500 rubles. If it is, when purchasing, pay more attention to the connector and number of wires
brace yourself) if it doesn’t thaw in the warm box and won’t open, if you push and pull in different directions, then... lower the rear seats, climb into the trunk and try to help apply pressure from there. If it doesn’t help, remove the upholstery and look at the rods. You can push the rod out and apply the same pressure and open the door.
and once you open it, either lubricate the lock with WD-40 (it will help against jamming, but not for long), it’s better to replace the entire lock
The four-door body of the Niva Chevrolet, in comparison with the Niva 2121, looked like just a limousine. What a shame it is for Shnivy owners when this body turns into a three-door. What to do when the back door on a Chevrolet Niva does not open, we will consider the reasons and solutions to the situation right now.
What could be the reason that the door does not open?
The Chevrolet Niva is equipped with a central lock, so each door has an additional device - an actuator. It is responsible for blocking the door lock when a signal is received from the central locking system. But in most cases this is not the cause of failure. If the door of a Niva Chevrolet Niva does not open, then in about 85% the problem lies in damage to the rods or lock. In winter, the door may freeze to the body due to the formation of condensation on the seal or moisture ingress after washing. But these cases are not a breakdown and go away on their own over time.
What to do if the rod is broken or bent.
The rod may fail as a result of dirt getting inside the door. Even new cars are susceptible to this. Chevrolet Niva is usually operated in conditions where there are no roads, where there is a high risk of fine dust getting inside the door. But during rain, car wash or wet weather, this dust absorbs moisture and turns into dirt. It can also be bent as a result of improper installation, and subsequent exposure to it leads to its destruction over time.
If you try to force open a jammed door, there is a high chance of bending the rod even more. Eventually, the thrust stroke is greatly reduced and the actuator does not have enough movement to unlock. At the same time, even after straightening the rod, it already changes its length, limiting the stroke.
In this situation, only disassembling the door and replacing the rods with new ones can help. It is important to check the operation of the lock and lubricate it if necessary. If you notice a malfunction in time, it is better to do the work right away, without waiting until the door is completely blocked and more difficulties will arise with its disassembly.
Features of the Chevrolet Niva door
The back door of the car is quite simple. The lock built into it is similar in design to that installed on the VAZ model. If the actuators fail, you can open them manually.
Important features of the system: if you activate the central locking when one of the doors is slightly open, the system may jam, and it will not necessarily be the one that was not closed properly.
This may be a result of the spring jamming in the lock body. This results from the fact that the steel from which it is made may not withstand the operating conditions of the car. As a result, the tendrils of the spring may break off, and the lock will start working after a while. Symptoms, as a rule, can be different, up to the door opening on the move.
Door repair work is quite simple.
First you need to completely remove the decorative trim. This is easy to do even with a locked door. All you need to do is follow a few simple steps:
- The screws at the bottom of the door card are unscrewed.
- The window lifter handle is removed. To do this, you need to pick it up with a screwdriver and pull the latch.
- The screw of the decorative trim is unscrewed.
- then you need to carefully release the door card latches. This can be done using a long screwdriver.
You can now unlock the door by pulling the actuator or rod. You can also use a long screwdriver to move the lock latch.
Important to remember: Before unlocking, you must disconnect the negative terminal from the battery.
After opening, you need to remove the lock. To do this, unscrew the screws at the end...
Removing the upholstery
In order to gain access to the lock mechanism, it is necessary to remove the door trim. To do this, do the following:
- A pair of screws are unscrewed at the top of the door near the trim;
- The decorative plugs at the bottom of the handle are removed and a couple more screws are unscrewed;
- The power wires (blocks) are disconnected from the power window buttons;
- The handle retracts to the side;
- The screws are unscrewed and the plastic pocket located at the bottom is removed;
- The internal door handle is dismantled by turning 90 degrees; to do this, the fixing screws are first unscrewed;
- The speaker is unscrewed and the supply wires (block) are disconnected from it;
- When all the fixing elements have been removed, you can carefully remove the upholstery fasteners from the bottom up;
- The sheathing is removed from the insulation and the door blocking button is removed.
After all the steps taken, you can proceed to removing the faulty lock.
Removal + repair + installation of rear door Niva Chevrolet
Dismantling and assembling the rear door of a Niva Chevrolet car
We prepare the car for the job
Remove the negative terminal of the battery.
To complete the task you will need tools: a set of screwdrivers, a 8mm head.
Using a Phillips screwdriver, unscrew the self-tapping screw securing the inner handle lining
Removing the handle trim
Squeeze the protrusions of the latch
And remove the door lock button
Insert a screwdriver between the socket and the window handle trim
Move the handle trim
Removing the lining
Removing the window handle
Removing the socket
Using a Phillips screwdriver, unscrew the self-tapping screw securing the upholstery installed in the armrest niche
Using a Phillips screwdriver, unscrew the two self-tapping screws securing the upholstery from the bottom.
We remove the lower part of the upholstery, removing the six pistons for its fastening from the holes in the door panel
Removing the door trim
Car fuses and relay box
The vehicle's power supply and consumption system ensures the correct functioning of components and assemblies and comfortable driving. The car's current source is the battery. The consumers are connected in parallel and combined into separate blocks with fuses.
On the Chevrolet Niva, the fuse box is mounted in a unit and is located in the passenger compartment. Fuses protect almost all electrical power circuits. They do not have such protection for the generator circuit, engine starting and battery charging.
The Niva fuse box is located on the driver's side under the dashboard. Access to the mounting block is closed with a lid.
To remove it, unscrew two screws.
We remove the cover from engagement with the instrument panel. We lift it up, remove the pins from the rubber bushings and remove it. In the photo you can see where the relay and fuse block is located.
In Niva Chevrolet cars, fuse F5 protects the power supply circuit for the front door window lifter. The power window relay is located in a block with remote relays. This block is located below the mounting one.
Removing the rear door outside handle
Remove the rear door trim as described above.
Use a 8mm socket to unscrew the bolt.
Removing the rear glass guide
Use a screwdriver to pry off the outer handle rod from the lock lever.
Using a 8mm socket, unscrew the nut securing the outer handle
Unscrew the bolt securing the outer handle
We move forward until it stops and, lifting the handle, remove it together with the rod from the door
Install the rear door outside handle in the reverse order.
Removing the rear door lock
Remove the door trim as described above.
Disconnect the outer handle rod from the lock lever.
Disconnect the electrical wiring harness for the lock and the door wiring harness
We disconnect the connectors of the interior lamp switch wires (the switch is in the lock)
Remove the spacer sleeve from the window lift axle
Using a Phillips screwdriver, unscrew the two screws
Removing the upholstery mounting bracket
Peel off the protective film
Squeezing the clamp with pliers, disconnect the rod from the inside door handle
Remove the inner handle rod from the holder
Remove the lock button insert from the lock
Use a Phillips screwdriver to unscrew the screw securing the lock release drive housing
By sliding the drive housing down, remove the housing and remove the rod from the holder
Use a Phillips screwdriver to unscrew the three screws securing the lock to the door.
We remove the lock assembly with rods and electric drive
Install the lock in the reverse order.
Removing and installing rear door window regulator
Remove the upholstery as described above
Disconnect the rod of the internal handle and locking lock
Fix the glass in the raised position (you can use a screwdriver)
Unscrew the bolts of the sliding glass mounting plate
Unscrew the two central nuts securing the window regulator
Unscrew the upper nut of the window regulator
Unscrew the lower nut securing the window regulator
Remove the window regulator assembly through the technological hole
Install the window regulator in reverse order.
Lubricate the window regulator parts with Litol-24 grease or an equivalent.
Replacing the sliding glass of the rear door of Niva Chevrolet
Remove the door trim as described above
We remove the window regulator.
Unscrew the bolt securing the sliding window guide and remove the guide
Removing the lower glass seal
Remove the top glass seal
We turn the glass in the window opening, as shown in the photo
Removing the glass from the opening
Install the glass in reverse order
Removing and installing the rear door
Disconnect the negative terminal from the battery
We unscrew the bolt securing the door opening limiter to the body
We remove the rubber protective tube of the wires from the central pillar
Holding the wires, pull the wire connector out of the rack and disconnect it
Remove the locking brackets of the hinge axes (old version)
Using a 8mm socket, unscrew the two hinge locking bolts (new design)
Remove the door upwards
Install the rear door and all parts in reverse order
Home•Niva•Chevrolet•Body
Removing the spare wheel bracket for Niva Chevrolet
To remove the bracket, you will need a 17mm wrench. Remove the spare wheel from the bracket and Unscrew the four nuts securing the bracket to the tailgate and remove the washers installed under the nuts
Remove the bracket and rubber washers from the tailgate studs. Installation of the Chevy Niva spare wheel bracket is performed in the reverse order of removal.
Removing and installing the tailgate trim of the Niva Chevrolet
To replace the trunk lid trim of a Chevy Niva, you will need flat-blade and Phillips-blade screwdrivers. Open the rear trunk lid
Remove the top screws securing the glass frame
Remove the decorative caps on both sides of the frame and remove the screws located under the caps.
Remove the trunk lid glass frame
Unscrew the filler plug and remove the neck trim of the tailgate glass washer reservoir
Carefully pry up the upholstery with a screwdriver at the locations of the fastening rivets and remove it. Installation of the trim and glass frame of the Niva Chevrolet trunk lid is performed in the reverse order of removal. Replace broken upholstery fastening pistons with new ones.
Removing and installing the trunk lid door lock drive Niva Chevrolet
To replace the Chevy Niva trunk lid lock, you will need flat-blade and Phillips-blade screwdrivers. Remove the upholstery
tailgate
and disconnect the wire from the negative terminal of the battery.
Remove the screws and remove the lock drive activator. Disconnect the wiring harness block from the activator. Installation of the rear door lock drive activator on a Chevrolet Niva is performed in the reverse order of removal.
Removing and installing the lock and handle of the trunk door lock of the Niva Chevrolet
To replace the lock or handle of the trunk lid door of a Chevy Niva, you will need keys 8 and 10, flat-blade and Phillips-blade screwdrivers. Remove the tailgate trim and disconnect the wire from the negative terminal of the battery
Remove the screws securing the trunk lid lock
Using a screwdriver, disconnect the rods from the door lock switch lever and from the door handle
Disconnect the black and white blocks of the wiring harnesses from the Chevrolet Niva trunk door lock activator and remove the lock assembly with the drive activator
Unscrew the door handle fastening nuts and remove the handle bracket bolt
In the "open" position, slide the handle to the left and remove the handle from the door opening. Installation of the Chevy Niva rear cover door lock and its handle is performed in the reverse order of removal.
How to remove the trunk lid of a Niva Chevrolet
To remove or install the Chevy Niva trunk lid, you will need keys 10, 13, 17 and a screwdriver. Disconnect the wire from the negative terminal of the battery
Unscrew the screws and remove the rivets securing the left trunk trim
Move the upholstery to the side and remove the screws securing the side panel trim
Remove the decorative trim for the seat belt eye and remove the bolt securing the eye to the body.
Remove the Niva Chevrolet seat belt from under the side panel trim and remove the trim
Disconnect the wiring harness connector from the trunk light and disconnect the tailgate wiring harness connector.
Remove the exhaust ventilation deflector and unscrew the nut securing the earth wire terminal
Remove the rubber bushing from the body hole and remove the trunk door wiring harness from the body hole.
Remove the bolts securing the door opening limiter
Remove the bolts securing the lower and upper hinges of the tailgate, having previously marked the position of the hinges on the body (if you are installing the previous door)
Remove the trunk lid. Installing the firecracker on a Niva Chevrolet is carried out in the reverse order of removal; after installation, be sure to adjust the position of the door in the body openings and the trunk lid lock.
Adjusting the position of the Chevrolet Niva tailgate
The position of the tailgate is adjusted by changing the position of the lock latch and the door tenon socket. You will need an impact screwdriver to make adjustments.
Using an impact screwdriver, loosen the screws securing the door lock retainer and the tailgate tenon socket. Move the retainer and socket in the desired direction and tighten the screws. This completes the adjustment of the trunk lid lock.
