Question about 2007 GMC Acadia SLE

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Acadia Power Lift Gate will cycle when at 1/2 open

The lift gate will open automatically to about 1/3-1/2 in the cycle then recycle to close. If it is interupted, the safety latch will not engage and you have to hold it in the open position. One time it failed upon opening after my wife put her head inside the back and the hatch came down on her back/neck. Anything you can suggest to repair this problem would be appreciated. I don't want to pay an arm and a leg to the dealer. 2008 AWD with 51K mileage

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There has been problems with that component,also Saturn Outlook ,has faulty gear, and will have to be calibrated and programmed to vehicle.ll

Posted on Jun 20, 2009

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Posted on Jan 02, 2017

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I have 2005 chevy tahoe my doors all licks but my liftgate door with window stays open use to lock w all my doors? I havent check anytjing yet? I cant lock it.


Here is how it works !
Liftgate Locking Operation
The lift gate will lock any time the vehicle is shifted out of park on vehicles equipped with an automatic transmission and at vehicle speeds exceeding 5 kph with manual transmission. This happens in conjunction with auto door locks if enabled or independently of auto door locks if the feature is disabled. This ensures that the lift gate is locked anytime the vehicle is shifted out of park or when the vehicle is in motion.
The lift gate 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 lift gate lock function has been received by the BCM. The BCM will then ground the control side of the lift gate lock relay. This energizes the relay and allows voltage to be applied to the lift gate lock actuator lock control circuit. Since the other side of the lift gate lock actuator is connected to the normally closed contacts of the door unlock relay to ground, the lift gate will lock. When an unlock function occurs the BCM will ground the control side of the unlock relay and the rear doors and lift gate will unlock.
The BCM also runs diagnostics on the lift gate 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 lift gate lock circuit and that the lift gate 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 lift gate lock relay battery positive voltage circuit


?€¢
A faulty lift gate lock relay


?€¢
An open or short to ground in the lift gate lock relay control circuit


?€¢
A short to ground in the lift gate lock actuator lock control circuit


?€¢
A faulty BCM

May 14, 2016 | Cars & Trucks

1 Answer

Trouble opening lift gate in 2012 Equinox computer saying rear door open


Hey Karen,

That lift gate has a control module that controls the operation.
It communicates with the latch and other body modules

If the info display is indicating it is open when you know it is indeed shut.....I would suspect the latch assembly. There is a micro switch in the latch that informs the module when the gate is closed.
A scanner is actually the best most efficient way to diagnose this issue. A good independent garage should be able to scan for you for a fee. It will be worth the fee. Also...the lift assist struts are problematic on this particular vehicle. They assist in opening and keeping the lift-gate open.

Mar 03, 2015 | 2012 Chevrolet Equinox LS 4dr SUV 2.4L...

1 Answer

2011 surburban lift gate not working


Does it still have the tailgate lift cylinders? The power tailgate lift is designed to work with the cylinders,but it won't work if the cylinders have lost their pressure.

Aug 24, 2014 | Cars & Trucks

1 Answer

Tahoe lift gate


A short stoll?

Mar 17, 2014 | Cars & Trucks

1 Answer

GMC Acadia Power Lift Gate Not Working


Will require a scan tool to check for codes, make sure latch is working well, make sure release switch is getting signal. Most common concern is the latch itself though

Jan 19, 2014 | 2008 GMC Acadia

1 Answer

Power liftgate will not open with remote, instrument panel control or button in rear cargo on lincoln mkx


It can be faulty switch or its issue with lift gate latch.Its got stuck up hard or cracked inside.It has to be inspected.-----------
There are few help links with proper solutions for these problem.I suggest you to refer the links.
Click the link below:----
2007 Mercury Mountaineer: Liftgate will not Unlock or Open? http://whoisbyme.blogspot.in/2012/06/2007-mercury-mountaineer-liftgate-will.html
------------
Adjust Hydraulic Lifters? http://schematicsdiagram.blogspot.in/2012/04/adjust-hydraulic-lifters.html
-----------
How to open rear lift gate? http://repairhelpcenter.blogspot.com/2011/12/how-to-open-rear-lift-gate.html

--------- Power Liftgate Shuts Down http://whoisbyme.blogspot.in/2012/07/power-liftgate-shuts-down.html
------------ Power Lift Gate Will Not Remain Open http://whoisbyme.blogspot.in/2012/07/power-lift-gate-will-not-remain-open.html
----------- Power Lift-gate will not Operate http://whoisbyme.blogspot.in/2012/07/power-lift-gate-will-not-operate.html
------------- Liftgate will Not Stay Up Open? http://whoisbyme.blogspot.in/2012/07/liftgate-will-not-stay-up-open.html

---------------- Rear Door will not open http://whoisbyme.blogspot.in/2012/07/rear-door-will-not-open.html
------------ 2000 Toyota Corolla: Rear Door wont open from outside or inside? http://whatisbyme.blogspot.in/2012/05/2000-toyota-corolla-rear-door-wont-open.html

--------------

These details will help.
Thanks.

Nov 25, 2012 | 2007 Lincoln MKX AWD

1 Answer

Liftgate won't open automatically


To open the lift gate manually, use the door unlock switch located on the drivers door. This should unlock the lift gate as well. Go to the lift gate and lift the handle to open the rear gate.

Your power lift gate is computer controlled. Sometimes there will be a faulty input sensor or part that will show the incorrect data to the computer, therefore the computer will not go through its normal functions.
In most cases its the problem of lift gate latch assembly.

To get it tested and confirmed there is a troubleshoot guide provided by the service center. To perform this troubleshooting guide you will require a scan tool to diagnose the exact problem.

the troubleshooting procedure is as follows:---

Please use the following information below when diagnosing an inoperative lift gate. Disconnect the connector at the lift gate latch assembly. With the lift gate latch connector disconnected, the 3 signals for the ratchet, pawl, and the sector should be inactive on the scan tool.

Install a 3A fused jumper wire between each signal circuit terminal (for the pawl, sector, and ratchet) and the ground circuit terminal 2. Monitor the scan tool as each individual circuit is jumped to ground, the scan tool should read "active".

If either tests above fails, check the wiring for the signal circuits, low reference circuit, or try a power lift gate control module from a known good vehicle. If both tests above pass, monitor the internal switch inputs in the lift gate latch assembly for proper operation.

3. A) with the lift gate in the open position, the ratchet and the pawl should read "active" and the sector should read "inactive"

B) With the lift gate in the secondary latched position, the pawl should read "Inactive" and the ratchet and sector should read "active"

C) With the lift gate fully closed, the pawl, ratchet, and the sector should all read "inactive".

4.If one of the internal lift gate latch assembly switch inputs are not reading correctly in one of the positions above and the vehicles passes test 1 and 2 above. Replace the lift gate latch assembly.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

This should help you.Thanks.Helpmech.

Dec 04, 2010 | 2006 Cadillac SRX

2 Answers

I have a 2007 yukon and the lift gate goes up about half way and returns to the closed position. What is going on?


try removing your shocks/struts for the lift gate. once removed, check to see if they fully extend in and out of the barrel. You may have bent shocks/struts. Also, check to see there is nothing preventing the lift-gate from opening such as a bolt or acorns between the spoiler and the roof...

Jul 17, 2009 | 2007 GMC Yukon Denali

1 Answer

Display console


There is a switch in the lift gate latch that closes when the gate is closed and turns off the light, this switch is defective, replace it and the light will go off.

Sep 16, 2008 | 2004 Jeep Grand Cherokee

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