Wiring diagram for rear panel 2010 mountaineer

Hi Lerato,

Sounds like you have a problem with an open or short circuit, or even high resistance in your liftgate somewhere. So when it's plugged in, the current path is hindered by the failed component or wiring/connection issue, and there's not enough power or no power getting to the other doors.

I'd recommend first making sure all of the fuses/relays are intact. If they all check out, I'd have the liftgate paneling removed and all wiring checked out for opens, shorts or high resistance. Also the wiring leading to/from the liftgate can have issues.

2010 GMC Buick Enclave Liftgate Won Open And How To Fixed It

Although the liftgate has no inside release mechanism,
the liftgate trim panel includes an opening with a
snap-in cap that provides access to release the latch in
the event of an electrical system malfunction.

It is possible that the handle is stuck in the "open position" which will not allow the hatch to unlock.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Have you checked the fuse? If so, the module is located behind the left rear trim panel. Remove the panel to access. Below is a diagram of the trim panel and location of the module in BLUE>
Preliminary Procedures

1. Move the rear seat to the full forward position.
2. Remove the rear number?2 seat . Refer to 3rd Row Seat Removal and Installation.
3. Remove the rear quarter upper trim panel. Refer to Quarter Upper Trim Panel Replacement.
4. Disconnect the liftgate actuator rod from the liftgate. Refer to Liftgate Actuator Rod Replacement.
5. Disconnect the rear seat number 2 shoulder belt anchor bolt. Refer to Rear Seat Number 2 Retractor Side Belt Replacement.
6. Remove the liftgate door sill plate. Refer to Liftgate Door Sill Plate Replacement.

There is a known TSB for this....
#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




--------------------------------------------------------------------------------
Do This
Don't Do This

Reposition liftgate lock cylinder wave washer and adjust lock rod.
DO NOT replace the liftgate latch or actuator.


Condition
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.

Cause
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.

Correction
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.

Tip
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.

Install the rear liftgate trim panel.

Install the upper liftgate garnish molding.

either crawl into back or if u have split gate where window opens u have to remove the little plastic access cover {on rear panel}and in the hole push against the rod to open ...once opened u can remove the rear panel and lube and or repair the clips that actuate the lock and release rods

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.

spray the latch down with starting fluid to remove grease then spray it with silicone to lubricate as grease will bid up lock lever worked for me

#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




--------------------------------------------------------------------------------
Do This
Don't Do This

Reposition liftgate lock cylinder wave washer and adjust lock rod.
DO NOT replace the liftgate latch or actuator.


Condition
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.

Cause
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.

Correction
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.

Tip
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.

Install the rear liftgate trim panel.

Install the upper liftgate garnish molding.

1. pwr antenna 7.5 amp 2. high mount stop lamp 7.5amp 3. lights 15 amp 4. left headlight 10 amps 5. data link connector 10 amps 6. airbag, blower motor relay 7.5 amps 7. lamp dimmer 7.5 amps 8. RH headlight, daytime running lts, fogs 10amps 9. autolamps, memory seat 10amps 10. blend door ( heater), shift lock actuator, cruise control, brake press limit, console, integrated contol panel, rear blower relay 7.5amp 11. radio, dimmer relay, inst cluster, autolamps 2 7.5 amp 12. liftgate wiper washer, front washer relay 10amps 13. brake on off switch 15 amps 14. antilock brakes 10amps 15. airbag diagnostic 7.5 amps 16. wiper main 30amps 17. cig lighter 25 amps 18. heater-a/c eatc module 15 amps 19. radio noise cap, ign coil, PCM power diode 25 amps 20. radio, powr ant 7.5 amps 21. turn /hazards 15 amps 22. turn hazards 10 amps 23. rear wiper relay, 10 amps 24. anti theft 10 amps 25. cluster 7.5 amps 26. rear window defrost, overdrive trans, backup lamps 10 amps 27. interior lighting 10 amps 28. GEM, mem seat 2 , 7.5 amp 29. radio CD changer 10amps 30. not used 31. rear blower relay, RH heated mirror, 7.5 amp 32. heated rear window switch RH heated mirror 7.5 amp 33. DRL module, RH LH daytime running lamp 15 amp 34. power antenna module, remote chassis unit 7.5 35. not used 36. not used