An electronic control module controls it .
The liftgate module (LGM) controls operation of the liftgate latch motor and the liftgate actuator assembly. Do you have a Liftgate Ajar Indicator ON ? Or a message in the message center driver information center (DIC) illuminates the LIFT GATE AJAR indicator ? The liftgate control module could have a DTC - diagnostic trouble code in memory !
When open, the liftgate can be closed by either a keyless entry transmitter or the liftgate close switch. When a GMLAN serial data message or switch input is seen, the liftgate module begins the close sequence. The liftgate motor is reversed, lowering the liftgate until it latches into the liftgate latch. Once latched, the latch will cinch the liftgate to a fully closed position.
Power liftgate function will only be allowed if certain operating criteria are met. Any of the following may cause the power liftgate not to function:
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Vehicle is not in park.
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Engine cranking is present.
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Temperature limits have been exceeded.
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Liftgate motor overcurrent is detected.
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Excessive hall effect counts are seen.
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System voltage is out of range.
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A DTC is set that disables power liftgate functionality.
The liftgate also receives inputs from 2 object detection sensors. If either of these sensors indicate an object is in the path of the liftgate, liftgate functions will be suspended until the object is removed.
SOURCE: 2005 Honda Odyssey Tailgate Problem
Try to reset the tailgate by removing the no.7 (7.5 amp) fuse in the underdash fuse box. Open and close the tailgate manually, reinstall the fuse, and try the open tailgate button. If that doesn't work you would have take it to the dealer, where they can check for DTC's (diagnostic trouble codes). Honda Al
SOURCE: Camry 1996 automatic power lock doen't work, but windows work.
if you can here relays when unlocking/locking check for power at door lock actuators inside doors, if you have power on lock/unlock and good earth from connector actuators are faulty.
if no power on test light when operating check output from central door lock module while operating, none coming out of module then it might need replacing.
check 30Amp power fuse for main relay under bonnet (which goes to pin 8 white/blue on module)and 10Amp gauge fuse in cab(pin 1 blue/red on module),pin 15 is also power when relay is on(red/blue) with test light, and module/ actuators.
check outputs from module pin 3 & 4
blue/red
blue/black
that go to door locks
SOURCE: Cadillac 96 deville - Trunk won't close
Is the lock grabing the stricker? You may have a stuck actuator holding the lock plate open or closed. Check operation. If it does lock and will not pull down to close compleatly you need to replace the pull down switch.
SOURCE: 2008 Tahoe-Remote won't lock or unlock the Drivers side lock
more than likely the lock solenoid in the driver side door is not working. it located near the latch inside the door.
Testimonial: "Thanks"
SOURCE: The sunroof is tilted open and won't close. When
Sounds like sunroof is stuck, motor can't overcome load. Cheap test: car off, interior light turned on try to move sunroof, does light dim? If yes motor is trying to move but can't. If light does not dim then motor not getting power.
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