When I use the key fob, or the interior open/close button, the liftgate opens about 1 inch, then 3 warning beeps, then closes and latches. However, if I pull the latch manually,(as you would on a non-automatic liftgate) and pass that ''1 inch'' point, the motor kicks in and raises the liftgate. Most of the time, it shuts okay, but there have been a few random times where I get the 3 warning beeps (for no reason, there is no obstruction) and it won't shut.
I have the Nissan Quest Model V42 Service Manual...(it's a digital pdf flie) and believe it or not, I cannot find the answer in there.
I've done quite a bit of research, but to no avail....I would truly appreciate any ideas anyone has to offer.
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Unless you have electrical diagnostic skills , I suggest you take this to the dealer ! The lift gate can be opened by operating the switch on the instrument panel. Battery voltage is supplied to the liftgate actuator through the body control module (BCM). The BCM will pulse the lift gate actuator when a release input is received through the key fob, or the instrument panel switch.
The body control module (BCM) receives an input from the liftgate ajar assembly. The ajar assembly is normally open when the liftgate is fully closed. When the liftgate is opened, the ajar assembly contacts close providing a path to ground. The driver information center (DIC) illuminates the rear access open message when the gate is open. The instrument panel cluster (IPC) receives a serial data message from the BCM indicating the liftgate ajar status. If this message is displayed and the vehicle speed is greater than 8 km/h (5 mph), a chime will sound.
It could be ajar switch is bad .
In this case it is usually necessary to remove the interior panels of the liftgate to gain access to the linkage inside. The only problem is: removal of those panels is much more difficult with the liftgate closed. Take to a professional, or risk breaking the attachment points of your panels, and associated fasteners. I usually charge around 50 to 100 dollars to get these open, then an additional charge for further work to repair the lock, latch, or linkage.
The Liftgate Module does have something to do with the remote FOBs (it has the receiver for the FOBs) and could also have an effect on the courtesy lights, it senses an open liftgate and sends that info to the Body Control Module (BCM). An area of common problems are the wires in the rubber boot between the body and the liftgate, these wires need to be checked for breakage.
#07-08-52-003: Rear Liftgate Glass May Not Lock When Using Remote Keyless Entry (RKE)/Key Fob Transmitter/Door Lock Switch, Lifgtate Hatch or Liftgate Glass May Lock/Unlock When Rear Liftgate Glass Button Depressed - (Sep 13, 2007)
Subject: Rear Liftgate Glass May Not Lock When Using Remote Keyless Entry (RKE), Key Fob Transmitter or Door Lock Switch, And/Or Liftgate Hatch Or Liftgate Glass May Lock Then Unlock When Rear Liftgate Glass Button is Depressed (Reposition Lock Cylinder Wave Washer and Adjust Lock Rod)
Models: 2005-2007 Buick Rainier
2005-2008 Chevrolet TrailBlazer, TrailBlazer EXT, TrailBlazer SS
2005-2008 GMC Envoy, Envoy XL, Envoy Denali
2005-2008 Saab 9-7X
Don't Do This
Reposition liftgate lock cylinder wave washer and adjust lock rod.
DO NOT replace the liftgate latch or actuator.
Some customers may comment on one or more of the following conditions:
• The rear liftgate glass may not lock when using the remote keyless entry (RKE), key fob transmitter or door lock switch unless the lock is pressed a second time.
• The rear liftgate or glass locks, but may be unlocked when the rear liftgate lock cylinder button is depressed.
• The rear liftgate locks but the liftgate glass may not lock.
These conditions may be caused by one or all of the following:
• The rear liftgate cylinder lock rod may be out of adjustment.
• The wave washer on the liftgate lock cylinder may be out of position with the cup side down.
• Excessive movement or slack in the lock rods at the liftgate bell crank assembly.
• The liftgate lock cylinder pawl may contact the rear liftgate glass latch when the lock cylinder button is depressed.
Important: Do Not remove the rear liftgate lock cylinder from the vehicle to perform this repair.
Reposition the rear liftgate lock cylinder wave washer and adjust the lock rod using the steps below.
Verify the customer's condition.
Open the liftgate.
Remove the upper liftgate garnish molding.
Remove the rear liftgate trim panel.
Remove the cylinder lock rod from the threaded lock rod retaining clip.
Place the tip of a screwdriver blade into the opening of the C-clip and slowly rotate the screwdriver to pry out the C-clip from the shaft. Then use needle-nose pliers to remove the C-clip.
Remove the C-clip from the rear liftgate lock cylinder push button and remove the wave washer.
Install the wave washer with the cup side up.
Position the wave washer with the curved edges of the wave spring parallel to the tabs on the lock cylinder shaft.
Important: Use needle-nose pliers to slightly squeeze the C-clip back into shape. Make sure the clip seated, you should feel a snap and hear an audible click.
Install the C-clip onto the shaft and in the slot using needle nose pliers. Then rotate the pawl several times to make sure the C-clip does not rotate. If the clip rotates then the clip is not fully seated.
Position the lock cylinder pawl to the full clockwise position.
Pull up on the cylinder lock rod to remove any slack in the bell crank.
Install the cylinder lock rod into the threaded lock rod retaining clip while removing any slack from the lock rod linkage.
Close the lock rod retainer clip.
Close the liftgate assembly.
Open the liftgate glass while keeping the liftgate closed.
Use the key fob to cycle the liftgate to the lock and unlock position while inspecting the rear liftgate pawl. The lock cylinder pawl should have clearance between the latch as shown above. If the pawl is contacting the latch, readjust the cylinder lock rod.
Verify that the customer's condition has been corrected.
POWER LIFT-GATE OPERATION - To open the optional power liftgate, push the
button on the instrument panel , press on your five-button key fob (if equipped),
or press and release the control located in the left rear quarter panel (Figure B). To unlatch the
liftgate glass, push the button ) under the center of the license plate lamp shield, or
press on your five-button key fob. Do not open the liftgate or the liftgate glass
in a garage or other enclosed area with a low ceiling. Keep clear of the liftgate when operating
the rear switch. To open the liftgate manually, pull the handle located on the liftgate to release
the liftgate from the vehicle. The power system will take over when you release the
handle. To close, make certain the rear window is closed, and then pull down the liftgate a few
inches to activate power closing. Closing the gate rapidly or more than a few inches may activate
the obstacle detection feature and stop the power system.------------
Also click this link for more help:---
This should help.Keep updated.Thanks.Helpmech.
check relay and fuses,make sure that automatic liftgate is on. You will have to to the command center and go through the defaults and make sure that the system is on. if you are not comfortable doing that, disconnect battery for approximate ten minutes, this will reset the system defaults.
All WJs feature an emergency unlock/lock switch lever for the liftgate. Should the liftgate become locked and unable to be opened due to a switch or circuit failure, a manual unlock/lock lever is accessible behind a small panel on the interior trim panel. As shown in the photos above, the lever can be moved up or down to unlock or lock the liftgate door.