2018 Vauxhall Corsa tailgate won't unlock

Could check fuse #14 , if not that , likely to be faulty lock assembly which you will have to access via the inside to open and check after removing trim


Fuse Layout Opel Corsa E / Vauxhall Corsa E 2015-2019
Assignment of the fuses in the engine compartment (2018, 2019)
№ Circuit
1 ABS pump
2 Front wiper
3 Blower
4 2018: Instrument panel
2019: Seat heating
5 Cooling fan
6 2018: Diesel fuel heater
2019: Not Used
7 Transmission
8 Cooling fan
9 Cooling fan
10 Cooling fan
11 Starter
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Instrument panel
Instrument panel fuse box diagram: Opel/Vauxhall Corsa E (2018)

Assignment of the fuses in the Instrument panel (2018, 2019)
№ Circuit
1 -
2 -
3 Power windows
4 Voltage transformer
5 Body control module 1
6 Body control module 2
7 Body control module 3
8 Body control module 4
9 Body control module 5
10 Body control module 6
11 Body control module 7
12 Body control module 8
13 -
14 Tailgate
15 Airbag system
16 Data link connection
17 Ignition
18 Air conditioning system
19 2018: Sunroof
2019: Not Used
20 Parking assist/Rain sensor/ Front camera
21 Brake switch
22 Audio system
23 Display
24 -
25 Auxiliary jack
26 Instrument panel
27 -
28 -
29 -
30 -
31 Horn
32 -
33 Heated steering wheel
34 -
35 Tyre repair kit
36 -
37 Rear wiper
38 Cigarette lighter
39 Power windows/Sunroof/Automatic transmission display
40 -