By KAIMIAO | 14 August 2024 | 1 Comments
【ELECTRIC TAILGATE LIFT】COMMON FAULT PROBLEMS OF ELECTRIC TAILGATE
COMMON FAULT PROBLEMS OF ELECTRIC TAILGATE
| COMMON FAULT PROBLEMS | CAUSE ANALYSIS | SOLUTION |
| 1.After the installation is completed, the left and right gaps in the tailgate are uneven or the door cannot be closed. | When installing the lock ring, the fixed position is not adjusted properly. | Adjust the position of the electric latch lock ring. |
| 2.Electric suction lock does not work. | Maybe the lock signal has changed, or there is a problem with the electric suction lock. | Check and measure the signal change of the original car lock. If there is no problem, you need to replace the electric suction lock |
| 3.The electric suction lock is idling, making abnormal noise, and the electric suction lock doesn’t work. | Maybe the gear is broken. | Need to replace the electric suction lock. |
| 4.After the installation is completed, the door stops halfway and alarms, or the door cannot be closed. | Maybe one of the struts isn't working; maybe the bracket is installed backwards. | Check whether the plug connection of the strut is normal; check whether the bracket is installed correctly. |
| 5.When the door rises to the highest point, it automatically falls down. | The strut strength is not enough or the software does not match. | Replace the strut or re-update the software. |
| 6.After the door was opened, the electric strut fell off. | The strut is not fastened; the strut circlip is deformed or loose; the bracket is deformed. | Check whether the struts are fastened, check whether the struts are deformed, loose or fall off; check whether the brackets are deformed during operation and cause the balls of the struts to fall off. |
| 7.Incorrect lock signal leads to abnormal door closing | Maybe the lock signal transfer tee line is in poor contact, or the line definition line sequence is incorrect. | Check whether the lock transfer three-way signal line is connected normally, and whether the line definition line sequence is correct. |
| 8.Key control does not work | The central control lock signal line is not connected correctly or the CAN signal data is incorrect. | Check whether the central control lock signal is correct and whether there is any poor contact; check the CAN signal data. |
| 9.After the installation is completed, the lock cannot be closed / the door is closed abnormally / no electricity. | Maybe the ground wire is in poor contact; or there is a problem with the ground wire connection position. | Check whether the ground wire is in poor contact to ensure that the ground wire is OK; it is recommended that the ground wire be connected to the original car grounding screw. |
| 10.After the installation is completed, the electric tailgate does not respond and does not work. | The power supply is not powered on or the power supply is incorrect. | Check whether the tailgate button light is always on. When taking the electric appliance, you should remove the original car's power fuse and connect it to the accessory electric appliance, and then insert it back into the original car fuse. |
| 11.Close the door normally, can't open when locked. | Turn off the power supply of the control box and test whether the door can be opened. | If possible, first check that the ground wire is correct. Change the position of the ground wire first, then replace the control box. |
| 12.After the installation is completed, the door cannot be locked or the speed is slow. | Check whether there are foreign objects blocking it. Check if the current reaches a value such that the vehicle can be started. | Make sure there is no problem with the installation.The control box can be upgraded the speed control software. |
| BLUE ECU | 2 alarm sounds | A. Check whether there is any foreign object in the process of descending the tailgate; B. Check whether the tailgate exceeds the stroke of the strut when it rises to the highest position, gently press the tailgate down a little and press and hold the button switch for 3 seconds to reset the height; C.Check whether the original tailgate waterproof rubber strip has been restored during the disassembly and assembly process. |
| The alarm sounds 5 times, the electric suction lock is opened or the suction is not in place. | A. Check whether the electric suction control line is connected correctly and whether the electric suction control line connector is damaged; Check if there is any abnormal sound when the electric suction works, if so, replace the electric suction lock. |
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| The alarm sounds 10 times, door opening and closing time-out alarm. | A. Check whether the tailgate is blocked by foreign objects; B. Check whether the tailgate is deformed and the door opening and closing is not smooth. C. Check whether there is abnormal noise when the strut is running; Check if the battery voltage is normal. |
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| The alarm sounds 15 times, the lock fails to open. | A. Check whether the door lock works normally; B. Check whether the door lock control line is connected correctly. |
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| The alarm sounds 20 times, the motor current exceeds the limit value. | Manually close the door or restart the electric tailgate controller to restore, if it cannot be restored, please replace the controller. | |
| The alarm sounds 25 times, the motor drive circuit is faulty. | A. Check whether there is a short circuit in the strut control line and the electric suction lock control line; B. Check whether the strut or electric suction lock operates normally; Replacing the Power Tailgate Controller. |
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| The alarm sounds 25 times, double pole balance alarm. | A. Check whether the pole ball head is off the pole; B. Measure whether the left and right strut strokes are consistent; C. Check whether the door is deformed; D. Check whether the left and right strut lines are properly connected, and whether the strut control line connector is damaged; E. Replace the strut Replacing the Power Tailgate Controller. |
lHow to set the height?
Raise the tailgate to the desired height, press the tailgate switch button, and hear a long beep for 3-5 seconds. Release the handle, press the tailgate button again to close the door, the tailgate closes in place, and then hear two beeps, that is, the tailgate learning is completed.If you don't hear two beeps, the study is unsuccessful and you need to re-learn; if you can't close the door, push the door with your hand to close it tightly when you study)
If the height setting is unsuccessful, it will automatically rise. Just disconnect the power first, adjust the tailgate to a suitable height by hand, and then release your hand to see if the tailgate will automatically rise. If the tailgate will rise automatically, it means that the strut is too strong, you need to increase the tailgate (such as adding sound insulation cotton), or replace the strut)
lWhy do we need to connect the CAN wire?
Mainly to obtain the original car protocol data, you can long press the tailgate button on the original car key to control the tailgate.
lHow to increase the closing force?
- Open tailgate, then use a screwdriver to lock our upper suction
- Press our tailgate switch button 6 times
- Then press the original car tailgate handle button to unlock it.
- Press our tailgate switch button for 3s, you will hear a sound. Then loose your hand
- Press our tailgate switch button again to close the tailgate. It is completed.
- If you need a video, pls contact us.
lIf the front switch button doesn’t work:
The switch operation methond: press the button for 3s. If it doesn't work, you can test the button follow the below methods:
Check whether it is a button problem or bad contact of the gray socket
There are 2 wires on the front dashboard button. Touch the two wires for 3 seconds to see if the tailgate will work.
1. if the tailgate will work, it means that the gray plug is in poor contact. you need to cut the gray plug, and connect the wire to the trigger wire of the outer handle button.
2. If the tailgate will not work, it means that the button is broken. you need to change the new one. if the button is broken, you need to take a video for us.
If you don't know how to do or you don't understand the method,
You can take a video to show me how you do.
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