First off,Thanks for letting me join! I've been reading all the threads on here and I haven't found quite what I'm looking for. Here's my dilemma on my 2015 MKC with powerliftgate: Power liftgate started acting crazy, sometimes it worked electrically, sometimes it didn't. Still worked manually. One day I passed by the rear and noticed the sound of the rear latch cycling. After a weekend of no use, found dead battery. Charged battery and two days later dead again. Took rear liftgate apart to investigate, found lock cycling. Used amprobe on battery and determined that with car off and PLGM ( I believe is the correct term Power Liftgate Module) plugged in, 5A draining from battery. Door actuator quits working from all switches, electrically, altogether. Only way to open rear gate is to manually stick hand in door and push lever on actuator. Unplugged the module and it went to 0A. Ordered a new module and while waiting, pulled latch mechanism apart and checked all of the switches in it. everything looked OK. Got new module in and installed. Power liftgate still doesn't work. Ordered a new liftgate motor, waited 2 months since they were on back order, installed it and still nothing. All fuses OK. Used Forscan Lite with ELM327 Module and found an error that said the computer had lost communications with the PLGM. Cleared the code and retested and the code never came back. Still doesn't work. Car is out of warranty and dealership too far away. I'm praying someone here can help me. Thanks
The dreaded POWER LIFTGATE gremlins!
JimmyChanga
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It should be available for download if it is ready for an update as long as you have version 2.4 of forscan.
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My 2014 MKZ has the SAME issue. The trunk is shut --> and therefore the battery is draining.
The computer module that controls the trunk also controls the doors, so I cannot disconnect it.
Apparently, the computer module needs to be reprogrammed.
Does this sound right?
The computer module that controls the trunk also controls the doors, so I cannot disconnect it.
Apparently, the computer module needs to be reprogrammed.
Does this sound right?
My mother has exactly the same liftgate problem as Carl Jeppson's wife's 2015 MKC has. The liftgate, on her used Lincoln MKC, would make cycling noises, and if she did not drive it every day the battery would discharge and eventually the battery went bad and had to be replaced. After that, the liftgate latch quit responding completely. Since it is the manually only model, there is no activation button inside the vehicle or on the fob, only the button next to the latch. Apparently it went to the dealer about a year ago for liftgate issues, but she is not sure that it was completely fixed. I do not have computer diagnostic help where it is located. How did you resolve your problem?
We had the same exact issue. We Replaced one Module, nothing, then replaced the 2nd one. Success. There are two modules. We also had to update the navigation system, and then have the dealership program the modules so they could "speak" to each other. It cost us close to $1000. Now..... the sensor to open it from outside (I have the hands free, kick your foot under) is not working. My husband hopes it was not plugged back in (underneath); after he did the initial rundown or we need a new fuse. Cross your fingers 🤞
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I had the same issue with a 2015 MKC. Fixed by replacing the module - I also used a newer (2017) version. Everything works now perfectly. I DO NOT have the power lift gate - just the cinch motor to fully close. Anyway - the new module fixed it.
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