Focus powerlift boot opens but won't close
Discussion
Hi all,
A friend has got a Ford Focus 2018 (mk4 - newer shape) with an estate powerlift boot. It opens fine but beeps twice when asked to close and does not move. He's tried all the different ways to close the boot electrically (i.e. the different switches),
The vehicle battery is fairly new and the car stop/starts so it's well charged,
There is no sign of the boot struggling when it opens.
He's tried disconnecting the battery but it hasn't worked.
All ideas welcome!
A friend has got a Ford Focus 2018 (mk4 - newer shape) with an estate powerlift boot. It opens fine but beeps twice when asked to close and does not move. He's tried all the different ways to close the boot electrically (i.e. the different switches),
The vehicle battery is fairly new and the car stop/starts so it's well charged,
There is no sign of the boot struggling when it opens.
He's tried disconnecting the battery but it hasn't worked.
All ideas welcome!
Another feature that we cant live without!!
I dont know the specifics of a ford boot, but usually there are several different things it could be, I'd do some specific research on Fords, but work your way through the following general tips:
Perform a hard reset, it sounds like you've tried to do that with the battery, but the modules all hold residual power for ages so you either need to disconnect the battery for 20 mins, or even better find and pull the fuse the for powerlift boot module, I imagine it will be a big fuse likely in the boot? Leave it disconnected so all the residual power has discharged. There will then be some kind of reset sequence, usually something like reconnect the fuse, turn the ignition on and manually close the boot so it learns the closed position then turn the ignition off, then try it again? You would need to google the specifics for a Ford.
If a hard reset doesnt help, work around the sensors, so some use the position of the key to a sensor in the bumper, so stand too close and it thinks you are obstructing it, too far away and it doesn't pick up the fob, so try the fob dead in the middle of the boot, and also try it by pressing and quickly taking steps backwards so it doesn't think your presence is an obstruction.
Some cars use the weatherstrip in the side gulleys to sense pressure, and it thinks the boot is open/closed/something is in the way, so run your hands all around the rubber strips and make sure they are all secure and not popped off the lip.
Then there is a microswitch in the latch, that may be stuck in the open/closed position so the sensor isn't reading the correct parameters to open/close, try a bit of WD40 in there and have a look for an obvious microswitch.
Sorry if this isn't specific to a 2018 Ford Focus, but its the most common things to try generally for these kinds of issues.
Not closing at all, rather than closing and reopening suggests more of a calibration issue than a ghost obstruction otherwise it would partially close then reopen.
I dont know the specifics of a ford boot, but usually there are several different things it could be, I'd do some specific research on Fords, but work your way through the following general tips:
Perform a hard reset, it sounds like you've tried to do that with the battery, but the modules all hold residual power for ages so you either need to disconnect the battery for 20 mins, or even better find and pull the fuse the for powerlift boot module, I imagine it will be a big fuse likely in the boot? Leave it disconnected so all the residual power has discharged. There will then be some kind of reset sequence, usually something like reconnect the fuse, turn the ignition on and manually close the boot so it learns the closed position then turn the ignition off, then try it again? You would need to google the specifics for a Ford.
If a hard reset doesnt help, work around the sensors, so some use the position of the key to a sensor in the bumper, so stand too close and it thinks you are obstructing it, too far away and it doesn't pick up the fob, so try the fob dead in the middle of the boot, and also try it by pressing and quickly taking steps backwards so it doesn't think your presence is an obstruction.
Some cars use the weatherstrip in the side gulleys to sense pressure, and it thinks the boot is open/closed/something is in the way, so run your hands all around the rubber strips and make sure they are all secure and not popped off the lip.
Then there is a microswitch in the latch, that may be stuck in the open/closed position so the sensor isn't reading the correct parameters to open/close, try a bit of WD40 in there and have a look for an obvious microswitch.
Sorry if this isn't specific to a 2018 Ford Focus, but its the most common things to try generally for these kinds of issues.
Not closing at all, rather than closing and reopening suggests more of a calibration issue than a ghost obstruction otherwise it would partially close then reopen.
From ChatGPT:
I think there’s a very good lead here. The **two beeps are significant**: Ford uses short warning tones when the power-tailgate system thinks it has detected an obstruction or another condition preventing movement.
More importantly, I found a **Mk4 Focus Estate case with almost exactly the same behaviour**: powered tailgate opened correctly, responded to the close command with the warning tone, but would not close. Ford replaced the latch, then the control module — neither fixed it. **The eventual cure was replacement of the left-hand powered strut/spindle.** ([Ford Focus MK4 Forum][1])
So I’d work through it in this order:
1. **Try moving the tailgate down manually by perhaps 6–12 inches**, gently, then press the close button again. Don’t force it. If it suddenly closes electrically from there, that makes me even more suspicious of one of the powered struts/its position sensing. There’s another Mk4 report where giving the tailgate a little manual assistance allowed it to close. ([Ford Focus MK4 Forum][1])
2. **Manually close it completely and latch it**, then operate it electrically to open, and try closing electrically again. Simply disconnecting the battery may not constitute the whole reset procedure on Ford power liftgates — Ford’s reset sequence on its systems involves manually closing and fully latching the tailgate before power-opening it again. ([Ford Service Content][2])
3. Check the **anti-pinch strips/sensors down both sides of the tailgate opening**. The Mk4 system does have left and right anti-pinch sensors as separate components. ([Ford Owners Club - Ford Forums][3]) Look for a displaced rubber strip, trapped dirt, damaged wiring or something that could make the module believe the strip is permanently being squeezed.
4. With the tailgate open, compare the **left and right powered struts**. Very gently see whether there is any obvious difference in free play, stiffness, noise or resistance. I wouldn't repeatedly force the hatch against them, though — Ford specifically warns that manually pushing/pulling a power tailgate can trigger obstacle detection or simulate a strut fault. ([Ford Service Content][4])
5. **Plug FORScan into it before buying anything.** This is probably the best next diagnostic step. The powered tailgate has its own **RGTM (Rear Gate/Trunk Module)** and it can store specific position-sensor faults. Other Mk4 owners have pulled RGTM codes such as **B1555/B1556 for invalid tailgate position-sensor signals**. ([Ford Focus MK4 Forum][5])
My suspicion ranking would currently be:
The really interesting test is the first one. **Open it fully, gently pull it down about a foot, then press the tailgate close button.** If it then takes over and closes, tell me exactly what happens. That would give us a pretty strong clue as to whether we're looking at the same **powered-strut fault** as that other Mk4.
[1]: https://www.focus-mk4-forum.de/forum/thread/275-el... "Elektrische Heckklappe mit Bewegungssensor - Focus MK4 - Karosserie, Blech- & Anbauteile - Ford Focus MK4 Forum"
[2]: https://www.fordservicecontent.com/Ford_Content/ca... "Ford"
[3]: https://www.fordownersclub.com/forums/topic/166052... "MK4 estate electric tailgate - Ford Focus Club - Ford Owners Club - Ford Forums"
[4]: https://www.fordservicecontent.com/Ford_Content/Ca... "Untitled"
[5]: https://www.focus-mk4-forum.de/forum/thread/1311-k... "Kofferraum geht nicht auf - Focus MK4 - Karosserie, Blech- & Anbauteile - Ford Focus MK4 Forum"
I think there’s a very good lead here. The **two beeps are significant**: Ford uses short warning tones when the power-tailgate system thinks it has detected an obstruction or another condition preventing movement.
More importantly, I found a **Mk4 Focus Estate case with almost exactly the same behaviour**: powered tailgate opened correctly, responded to the close command with the warning tone, but would not close. Ford replaced the latch, then the control module — neither fixed it. **The eventual cure was replacement of the left-hand powered strut/spindle.** ([Ford Focus MK4 Forum][1])
So I’d work through it in this order:
1. **Try moving the tailgate down manually by perhaps 6–12 inches**, gently, then press the close button again. Don’t force it. If it suddenly closes electrically from there, that makes me even more suspicious of one of the powered struts/its position sensing. There’s another Mk4 report where giving the tailgate a little manual assistance allowed it to close. ([Ford Focus MK4 Forum][1])
2. **Manually close it completely and latch it**, then operate it electrically to open, and try closing electrically again. Simply disconnecting the battery may not constitute the whole reset procedure on Ford power liftgates — Ford’s reset sequence on its systems involves manually closing and fully latching the tailgate before power-opening it again. ([Ford Service Content][2])
3. Check the **anti-pinch strips/sensors down both sides of the tailgate opening**. The Mk4 system does have left and right anti-pinch sensors as separate components. ([Ford Owners Club - Ford Forums][3]) Look for a displaced rubber strip, trapped dirt, damaged wiring or something that could make the module believe the strip is permanently being squeezed.
4. With the tailgate open, compare the **left and right powered struts**. Very gently see whether there is any obvious difference in free play, stiffness, noise or resistance. I wouldn't repeatedly force the hatch against them, though — Ford specifically warns that manually pushing/pulling a power tailgate can trigger obstacle detection or simulate a strut fault. ([Ford Service Content][4])
5. **Plug FORScan into it before buying anything.** This is probably the best next diagnostic step. The powered tailgate has its own **RGTM (Rear Gate/Trunk Module)** and it can store specific position-sensor faults. Other Mk4 owners have pulled RGTM codes such as **B1555/B1556 for invalid tailgate position-sensor signals**. ([Ford Focus MK4 Forum][5])
My suspicion ranking would currently be:
- Powered strut/position sensing → anti-pinch sensor/wiring → tailgate position/calibration → latch → RGTM module.**
The really interesting test is the first one. **Open it fully, gently pull it down about a foot, then press the tailgate close button.** If it then takes over and closes, tell me exactly what happens. That would give us a pretty strong clue as to whether we're looking at the same **powered-strut fault** as that other Mk4.
[1]: https://www.focus-mk4-forum.de/forum/thread/275-el... "Elektrische Heckklappe mit Bewegungssensor - Focus MK4 - Karosserie, Blech- & Anbauteile - Ford Focus MK4 Forum"
[2]: https://www.fordservicecontent.com/Ford_Content/ca... "Ford"
[3]: https://www.fordownersclub.com/forums/topic/166052... "MK4 estate electric tailgate - Ford Focus Club - Ford Owners Club - Ford Forums"
[4]: https://www.fordservicecontent.com/Ford_Content/Ca... "Untitled"
[5]: https://www.focus-mk4-forum.de/forum/thread/1311-k... "Kofferraum geht nicht auf - Focus MK4 - Karosserie, Blech- & Anbauteile - Ford Focus MK4 Forum"
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