Opel Astra K represents the 5th generation of Astra which was produced in 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022. Also known under the name Vauxhall Astra K and Holden Astra K. During this time, the model was restyled. In this publication you can find a description of fuses and relays of the Astra K with fuse box diagrams, their locations and photo examples of execution. Let’s highlight the cigarette lighter fuse.
The purpose of fuses and relays may differ from those presented and depend on the year of manufacture, the level of electrical equipment and the region of delivery of your vehicle.
Passenger compartment
Inside the car, the fuse and relay box is located in the middle of the center console, behind the protective cover.
If the fuse cover has a power connector, it must be removed using an adapter and a screwdriver, which should be located in the glove compartment.
Photo example
Diagram
Assignment
| 1 | 2019-2022: Heated rear seats (only for vehicles without audible alarm) |
| 2 | Climate control system, fan |
| 3 | Electric driver’s seat |
| 4 | 2016–2018: Cigarette lighter/ socket at front |
| 2019-2022: Power passenger seat | |
| 5 | ABS |
| 6 | Front electric windows |
| 7 | 2016-2019: ABS |
| 8 | Heated steering wheel |
| 9 | Body control module |
| 10 | Rear electric windows |
| 11 | Sunroof |
| 12 | Body control module |
| 13 | Heated seats (only on vehicles without audible alarm) |
| 14 | Exterior mirror |
| 15 | Body control module |
| 16 | Body control module |
| 17 | Body control module |
| 18 | Body control module |
| 19 | Data link connector |
| 20 | Airbag system |
| 21 | Climate control system |
| 22 | Central locking, rear door |
| 23 | Electronic key system |
| 24 | Power seat memory function |
| 25 | Steering wheel with airbag system |
| 26 | Ignition switch/ steering column lock |
| 27 | Body control module |
| 28 | USB connector |
| 29 | 2016–2018: Not used |
| 2019-2022: Cigarette lighter/ socket in front. | |
| 30 | Selector lever |
| 31 | Rear window wiper |
| 32 | Transmission control module |
| 33 | Anti-theft alarm / Sound alarm |
| 34 | Parking Assist / Side Blind Zone Alert / Infotainment System / USB Port |
| 35 | OnStar |
| 36 | Information display/instrument cluster/ CD player |
| 37 | Infotainment system, radio |
Depending on the year of manufacture, fuse number 29 or 4 may be responsible for the operation of the cigarette lighter.
Engine compartment
Under the hood in the engine compartment on the left side there is a main box with fuses and relays.
Diagram
Designation
1 – F6UB 500A • Starter M64
5 – F5UB 80A • Engine control unit K20 (LVK/LVL/LWQ/LWV)
6 – F4UB 80A • K43 Power steering control module (NJ0/NJ1)
7 – F3UB 100A • Additional electric heater E40 (C32)
8 – F2UB 80A • Cooling fan motor G10
| F1UA | 30A • Starter relay KR27 |
| F2UA | 40A • KR27C Starter gear solenoid relay |
| F3UA | 15A |
| B52A Heated oxygen sensor 1 (LE1/LE2/LFE/LV7/LWC) | |
| E41 Engine coolant thermostat heater (LE1/LE2/LWC) | |
| K20 Engine Control Module (LV7) | |
| M98 Intake manifold service valve actuator (LVK/LVL) | |
| Q12 Evaporative emissions purge solenoid valve (LE1/LE2/LFE/LV7/LWC) | |
| Q40 Turbocharger wastegate solenoid valve (LE1/LE2/LFE/LWC) | |
| Q42 Turbocharger wastegate solenoid valve (LE1/LE2/LFE/LWC) | |
| Q44 Engine oil pressure control solenoid valve | |
| Q45 Piston Cooling Oil Injector Solenoid Valve (LVK/LVL/LWQ/LWV) | |
| Q47 Exhaust gas recirculation (LVK) cooler bypass solenoid valve | |
| Q56 Coolant pump clutch (LE1) | |
| F4UA | 25A • K20 Engine Control Module |
| F5UA | 10A |
| KR31 Coolant Pump Relay – Auxiliary (LWC) | |
| M96 Active radiator air flap drive (VRI) | |
| F6UA | 20A • K71 Transmission Control Module (MJA) |
| F7UA | 10A • Not used |
| F8UA | 10A |
| K20 Engine Control Module (LFE/LV7/LWC) | |
| K103 Fuel injector control module (LFE) | |
| F9UA | 10A • KR29 A/C compressor clutch relay |
| F10UA | 10A • Not used |
| F11UA | 20A |
| K39 Rear door control module (estate with TC2) | |
| K171 Hands-free rear door sensor control module (station wagon with TC2) | |
| F12UA | 10A |
| Q51D Seat Lumbar Support Valve Assembly – Actuator (AVK) | |
| Q51P Seat lumbar support valve assembly – passenger (AVU) | |
| F13UA | 7.5A • KR31 Coolant Pump Relay – Auxiliary |
| F14UA | 5A • Not used |
| F15UA | 10A (without diesel) 15A (diesel) |
| B52A Heated Oxygen Sensor 1 (LVK/LVL/LWQ/LWV) | |
| B52B Heated oxygen sensor 2 | |
| B75C Multi-function intake air sensor (without diesel engine) | |
| B280 Automatic transmission battery solenoid valve (MNU with KL9) | |
| F16UA | 7.5A (Diesel)15A (without Diesel) |
| K20 Engine Control Module (Diesel/LE1/LE2/LFE/LWC) | |
| K103 Fuel injector control module (LFE) | |
| Q17A Fuel injector 1 (LV7) | |
| Q17B Fuel injector 2 (LV7) | |
| Q17C Fuel injector 3 (LV7) | |
| Q17D Fuel injector 4 (LV7) | |
| T8A Ignition coil 1 (LE1/LE2/LFE/LV7/LWC) | |
| T8B Ignition Coil 2 (LE1/LE2/LFE/LV7/LWC) | |
| T8C Ignition Coil 3 (LE1/LE2/LFE/LV7/LWC) | |
| Ignition coil T8D 4 (LE2/LFE/LV7/LWC) | |
| F17UA | 15A • Engine control unit K20 (without LV7) |
| F18UA | 5A • Not used |
| F19UA | 10A • Not used |
| F20UA | 40A • Not used |
| F21UA | 30A • Not used |
| F22UA | 50A • K17 Electronic brake control module |
| F23UA | 15A |
| KR6 Rear window washer pump relay | |
| KR11 Windshield washer pump relay | |
| F24UA | 25A • Not used |
| F25UA | 30A • Fuel heater relay KR22 (LVK/LWQ/LWV) |
| F26UA | 40A • K71 Transmission control module (MJA) |
| F27UA | 40A • K39 Rear door control module (estate with TC2) |
| F28UA | 30A • Not used |
| F29UA | 40A |
| R14L Rear window defroster noise filter – left (US3) | |
| E18 Rear heater grille | |
| F30UA | 7.5A • Not used |
| F31UA | 7.5A • Not used |
| F32UA | 7.5A |
| E40 Additional electric heater (C32) | |
| K33 HVAC control module | |
| K111 Fuel pump drive control module (LE1/LE2/LFE/LWC/LWQ/LWV) | |
| P43 Collision warning indicators (UEU) | |
| Shift lever S3 (MJA) | |
| Power transformer T19 (KL9) | |
| F33UA | 10A • Do not use |
| F34UA | 15A • Horn P12 |
| F35UA | 20A • Additional power socket X80C – truck (wagon) |
| F36UA | F36UA 10A (T4A) 15A (T4L) |
| E4F Headlight – right high beam (T4A) | |
| E67R Multi-function LED – right headlight (T4L) | |
| F37UA | 10A • E4E Headlight – high beam left (T4A) |
| F38UA | 5A • K26 Headlight control unit (T4L) |
| F39UA | 15A |
| E29LF Fog Lamp – Front Left (T3U) | |
| E29RF Fog Lamp – Front Right (T3U) | |
| F40UA | 5A • K56 Serial Data Gateway Module |
| F41UA | 7.5A |
| E11A Fuel heater/ water in fuel sensor (diesel) | |
| Q56 Coolant pump coupling (diesel) | |
| F42UA | 10A |
| M29L Headlight range control drive – left (TR6) | |
| M29R Headlight range control drive – right (TR6) | |
| S30 Headlight switch (TR6) | |
| F43UA | 20A • KR23A Fuel pump relay (LV7/LVK/LVL/LWQ/LWV) |
| F44UA | 5A |
| A10 Interior rear view mirror (DD8) | |
| B87 Rear view camera (UVC) | |
| K68 Trailer lighting control module (VQ9) | |
| X80G Auxiliary Power Outlet – Instrument Panel | |
| F45UA | 15A • M29L Headlight range control drive – left (T4L) |
| F46UA | 5A • P16 Instrument cluster |
| F47UA | 15A • K60 Steering column lock module (BTM) |
| F48UA | 20A • Rear wiper relay KR7 |
| F49UA | 7.5A |
| A9A Outside rearview mirror – driver (DWE/DWF) | |
| A9B Outside rear view mirror – passenger (DWE/DWF) | |
| F50UA | 15A • M29R Headlight range control drive – right (T4L) |
| F51UA | 15A • E67L Multifunction LED – left headlight (T4L) |
| F52UA | 7.5A |
| K20 Engine Control Module | |
| K103 Fuel injector control module (LFE) | |
| K71 Transmission control module (MJA) | |
| Q8 Control Solenoid Valve Assembly (M2D) | |
| T12 Automatic Transmission Assembly (MNP/MNU) | |
| F53UA | 30A • KR121 reducer control module relay |
| F54UA | 30A • M79 Wiper motor module |
| F55UA | 30A • Not used |
| F56UA | 7.5A • Not used |
| F57UA | 15A • Not used |
Relay
- K01 – Starter relay KR27 – M64 starter
- K02 – KR29 A/C compressor clutch relay – Q2 A/C compressor clutch
- K03 – Engine management system ignition relay
- K04 – Sensor supply voltage relay
- K05 – Starter gear solenoid relay KR27C – M64 starter
- K06 – Fuel heater relay KR22 – E11A Fuel heater/water in fuel sensor (LVK/LWQ/LWV)
- K07 – Not used
- K08 – Not used
- K09 – Relay for reagent control module KR121 K115
- K10 – Fuel pump relay KR23A – Fuel pump G12
- K11 – Not used
- K12 – KR49R Headlight low beam relay – right
- K12 – KR48 High beam relay
- K13 – KR49L Low beam relay – left
- K14 – Main ignition relay
- K15 – Rear heater relay KR5
The relays listed below are maintenance-free printed circuit board (PCB) relays and are located inside the unit.
K16 – Horn relay KR3
K17 – KR196B Sensor 2 Supply Voltage Relay – K115 Reductant Control Module
K18 – KR46 Front fog lamp relay
K19 – KR31 Coolant pump relay – auxiliary
K19 – KR196C Sensor 3 Supply Voltage Relay (K111 Fuel Pump Driver Control Module, B136 Exhaust Particulate Matter Sensor, B195A Nitrogen Oxide Sensor 1, B195B Nitrogen Oxide Sensor 2 (LVL)
K20 – Not used
K21 – KR6 Rear window washer pump relay
K22 – KR11 Windshield washer pump relay
K23 – KR7 Rear wiper relay
The items listed below are diagnostic test points for the relay on the printed circuit board.
TP19-1 – Coolant pump relay KR31 – auxiliary
TP19-2 – Coolant pump relay KR31 – auxiliary
TP21 – Rear window washer pump relay KR6
TP22 – KR11 Windshield washer pump relay
TP23 – Rear wiper relay KR7
Luggage compartment
In the trunk, on the left side there is another fuse box.
Diagram
Allocation
| 1 | – |
| 2 | 2016-2018: DC/AC inverter |
| 3 | Trailer module |
| 4 | 2016-2018: Power passenger seat |
| 5 | – |
| 6 | 2016-2018: Long-range warning module |
| 7 | – |
| 8 | – |
| 9 | 2016-2018: Heated rear seats (on vehicles without audible alarms) |
| 10 | 2016-2019: Service |
| 11 | Amplifier |
| 12 | Heated front seats (on vehicles with audible alarms) |
| 13 | Rear seat heating (on vehicles with audible alarm) |
| 14 | Ignition |
| 15 | Seat ventilation |
| 16 | Trailer socket |
| 17 | Trailer socket |
| 18 | – |
| 19 | – |
| 20 | – |
| 21 | Power folding rear seats. |
| 22 | Electric rear door |
If you know how to make the material better, write in the comments.
I have a 2018 diesel Astra estate. The fuse box which is supposed to be in the luggage compartment is not there. Would you be able to suggest any other places it could be located.
I am trying to stop the “Service vehicle soon” message to stop. It’s been serviced, but it won’t cancel.