Fuses and relays Opel / Vauxhall Astra K (B16), 2015–2021

Table of Contents

The Astra K was introduced in September 2015, with sales launching in July 2016. In China, it is marketed as the Buick Verano; in the UK, it is sold under the Vauxhall badge; and in Australia and New Zealand, it is designated as the Holden Astra. This manual provides a detailed overview of the fuse box diagrams for the Opel/Vauxhall Astra K (fifth generation; chassis code B16; D2XX platform) for model years 2015 through 2023.

Below you will find the locations and visual references for the power distribution centers. Fuses for the “Cigarette Lighter / Auxiliary Power Outlet” and “Fuel Pump” are highlighted in bold.

Engine Compartment Fuse Box


The engine compartment fuse and relay box is located on the left-hand side of the engine bay. Unclip and remove the protective cover to gain access.


Overview layout.

Diagram
No. Description / Function Rating (A)
K01 KR27 – Starter relay; Starter motor M64
K02 KR29 – A/C compressor clutch relay; Q2 A/C compressor clutch
K03 Engine Control Module (ECM) ignition main relay
K04 Sensor power supply relay
K05 KR27C – Starter pinion solenoid drive relay; Starter motor M64
K06
  • KR22 – Fuel heater relay;
  • E11A – Fuel heater / water-in-fuel sensor (LVK, LWQ, LWV)
K07 Unassigned / Spare
K08 Unassigned / Spare
K09 KR121 / K115 – Reductant / AdBlue control module relay
K10 KR23A – Fuel pump relay; G12 – Fuel pump assembly
K11 Unassigned / Spare
K12 KR49R – Right low beam headlight relay
K12 KR48 – High beam headlight relay
K13 KR49L – Left low beam headlight relay
K14 Main ignition relay
K15 KR5 – Heated rear window relay
Non-serviceable PCB-integrated relays
K16 KR3 – Horn relay
K17 KR196B – Sensor supply voltage relay 2; K115 Reductant control module
K18 KR46 – Front fog lamp relay
K19 KR31 – Auxiliary coolant pump relay
K19 KR196C – Sensor supply voltage relay 3 (K111 fuel pump control module, B136 exhaust particulate matter sensor, B195A NOx sensor 1, B195B NOx sensor 2 (LVL))
K20 Unassigned / Spare
K21 KR6 – Rear window washer pump relay
K22 KR11 – Windshield washer pump relay
K23 KR7 – Rear window wiper relay
Fuses
F1 KR27 – Starter relay circuit 30
F2 KR27C – Starter pinion solenoid drive relay circuit 40
F3
  • B52A Heated oxygen sensor 1 (LE1, LE2, LFE, LV7, LWC)
  • K20 Engine Control Module (LV7)
  • Q12 Evaporative emissions purge solenoid valve (LE1, LE2, LFE, LV7, LWC)
  • E41 Engine coolant thermostat heater (LE1, LE2, LWC)
  • Q56 Coolant pump clutch (LE1)
  • Q47 EGR cooler bypass solenoid valve (LVK)
  • Q45 Piston cooling jet solenoid valve (LVK, LVL, LWQ, LWV)
  • Q44 Variable engine oil pressure control solenoid valve
  • Q42 Turbocharger wastegate control solenoid valve (LE1, LE2, LFE, LWC)
  • Q40 Turbocharger boost control solenoid valve (LE1, LE2, LFE, LWC)
  • M98 Intake manifold swirl flap actuator (LVK, LVL)
 15
F4 K20 – Engine Control Module (ECM) 25
F5
  • M96 – Active grille shutter actuator (VRI)
  • KR31 – Auxiliary coolant pump relay (LWC)
 10
F6 K71 – Transmission Control Module (TCM) (MJA) 20
F7 Unassigned / Spare 10
F8
  • K103 – Fuel injector control module (LFE)
  • K20 – Engine Control Module (LFE, LV7, LWC)
 10
F9 KR29 – A/C compressor clutch relay 10
F10 Unassigned / Spare 10
F11 Sports Tourer (Estate) with power tailgate (TC2):
  • K171 Hands-free liftgate sensor module
  • K39 Power liftgate control module
 20
F12 Q51D/Q51P – Driver/Passenger seat lumbar support valve block (AVK, AVU) 10
F13 KR31 – Auxiliary coolant pump relay 7.5
F14 Unassigned / Spare 5
F15 Diesel engines: 15 A / Gasoline engines: 10 A:
  • B280 Automatic transmission auxiliary fluid pump solenoid valve (MNU with Stop/Start KL9)
  • B75C Mass air flow (MAF) sensor (Gasoline)
  • B52B Heated oxygen sensor 2 (Downstream)
  • B52A Heated oxygen sensor 1 (Upstream) (LVK, LVL, LWQ, LWV)
 10 / 15
F16 Diesel engines: 7.5 A / Gasoline engines: 15 A:
  • K103 Fuel injector control module (LFE)
  • Q17A–Q17D Fuel injectors 1–4 (LV7)
  • K20 Engine Control Module (Diesel / LE1 / LE2 / LFE / LWC)
  • T8A–T8D Ignition coils 1–4 (LE1 / LE2 / LFE / LV7 / LWC)
 7.5 / 15
F17 K20 – Engine Control Module (except LV7) 15
F18 Unassigned / Spare 5
F19 Unassigned / Spare 10
F20 Unassigned / Spare 40
F21 Unassigned / Spare 30
F22 K17 – Electronic Brake Control Module (EBCM / ABS / ESP) 50
F23
  • KR11 – Windshield washer pump relay
  • KR6 – Rear window washer pump relay
 15
F24 Unassigned / Spare 25
F25 KR22 – Fuel heater relay (LVK, LWQ, LWV) 30
F26 K71 – Transmission Control Module (TCM) (MJA) 40
F27 K39 – Power liftgate control module (Sports Tourer with TC2) 40
F28 Unassigned / Spare 30
F29
  • R14L – Left rear window antenna noise filter (US3)
  • E18 – Heated rear window element
 40
F30 Unassigned / Spare 7.5
F31 Unassigned / Spare 7.5
F32
  • K111 – Fuel pump driver module (LE1 / LE2 / LFE / LWC / LWQ / LWV)
  • E40 – Auxiliary cabin heater element (C32)
  • P43 – Forward collision warning display module (UEU)
  • T19 – DC/DC voltage converter (Stop/Start KL9)
  • S3 – Automatic transmission gear selector lever (MJA)
  • K33 – HVAC control module
 7.5
F33 Unassigned / Spare 10
F34 P12 – Horn assembly 15
F35 X80C – Rear auxiliary power outlet (Sports Tourer / Estate) 20
F36 10 A (T4A halogen) / 15 A (T4L LED):
  • E67R – Right IntelliLux LED headlight assembly (T4L)
  • E4F – Right halogen high beam headlight (T4A)
 10 / 15
F37 E4E – Left halogen high beam headlight (T4A) 10
F38 K26 – Automatic headlight leveling control module (T4L) 5
F39 E29RF – Right front fog lamp / E29LF – Left front fog lamp (T3U) 15
F40 K56 – Serial Data Gateway Module (CGW) 5
F41 Q56 – Coolant pump clutch (Diesel) / E11A – Fuel heater / water-in-fuel sensor (Diesel) 7.5
F42
  • S30 – Headlight switch (TR6)
  • M29R – Right headlight beam leveling actuator (TR6)
  • M29L – Left headlight beam leveling actuator (TR6)
 10
F43 KR23A – Fuel pump relay (LV7, LVK, LVL, LWQ, LWV) 20
F44
  • X80G – Center console auxiliary power outlet
  • K68 – Trailer lighting control module (VQ9)
  • A10 – Electrochromic auto-dimming interior rearview mirror (DD8)
  • B87 – Rearview camera module (UVC)
 5
F45 M29L – Left headlight leveling actuator (T4L) 15
F46 P16 – Instrument panel cluster (IPC) 5
F47 K60 – Electronic steering column lock module (BTM) 15
F48 KR7 – Rear window wiper relay circuit 20
F49
  • A9B – Passenger side power door mirror (DWE, DWF)
  • A9A – Driver side power door mirror (DWE, DWF)
 7.5
F50 M29R – Right headlight leveling actuator (T4L) 15
F51 E67L – Left IntelliLux LED headlight assembly (T4L) 15
F52
  • K103 – Fuel injector control module (LFE)
  • K20 – Engine Control Module (ECM)
  • T12 – Automatic transmission control assembly (MNP, MNU)
  • K71 – Transmission Control Module (TCM) (MJA)
  • Q8 – Transmission solenoid valve block (M2D)
 7.5
F53 KR121 – Transmission control module relay 30
F54 M79 – Windshield wiper motor module 30
F55 Unassigned / Spare 30
F56 Unassigned / Spare 7.5
F57 Unassigned / Spare 15
1 M64 – Starter motor (F6UB battery pre-fuse) 500
5 K20 – Engine Control Module (LVK, LVL, LWQ, LWV) (F5UB battery pre-fuse) 80
6 Electronic Power Steering (EPS) control module (NJ0, NJ1) (F4UB battery pre-fuse) 80
7 E40 – Auxiliary electric PTC heater matrix (C32) (F3UB battery pre-fuse) 100
8 G10 – Radiator cooling fan motor assembly (F2UB battery pre-fuse) 80
Printed Circuit Board (PCB) Relay Diagnostic Test Points
TP19-1 KR31 – Auxiliary coolant pump relay test points
TP19-2
TP21 KR6 – Rear window washer pump relay test point
TP22 KR11 – Windshield washer pump relay test point
TP23 KR7 – Rear window wiper relay test point

An auxiliary battery fuse block is mounted directly on the 12 V battery terminal.


Assignment:

  • F1 – Fuel pump control fuse
  • F2 – Engine Control Module (ECM)
  • F3 – Main battery busbar / Power supply distribution

Passenger Compartment Fuse Box


The cabin fuse box is located behind the lower center instrument panel access panel. If equipped with a diagnostic or power connector inside the trim panel, release it using a trim tool or flathead screwdriver before removing the cover.


Overview layout of the Opel/Vauxhall Astra K interior fuse panel.

Diagram
No. Function / Protected Circuit
1 2019–2023: Heated rear outer seats (vehicles without anti-theft alarm system)
2 Climate control system blower motor switch
3 Power driver seat adjustment module
4 2015–2018: Front cigarette lighter / 12 V power outlet | 2019–2023: Power passenger seat adjustment module
5 Anti-lock Braking System (ABS) / Electronic Stability Control (ESC) module
6 Front power window controls
7 2015–2019: Anti-lock Braking System (ABS) hydraulic unit switch supply
8 Heated steering wheel element
9 Body Control Module (BCM 1)
10 Rear power window controls
11 Power sunroof module
12 Body Control Module (BCM 2)
13 Heated front seats (vehicles without anti-theft alarm system)
14 Power exterior door mirrors switch
15 Body Control Module (BCM 3)
16 Body Control Module (BCM 4)
17 Body Control Module (BCM 5)
18 Body Control Module (BCM 6)
19 OBD-II Data Link Connector (DLC)
20 Supplemental Restraint System (SRS / Airbag control module)
21 HVAC automatic climate control module
22 Central locking actuator system / Fuel filler door switch
23 Keyless entry and start control module (PEPS)
24 Power seat position memory module
25 Steering wheel airbag clockspring harness
26 Ignition switch / Electronic steering column lock module
27 Body Control Module (BCM 7)
28 USB charging port / Auxiliary media connector
29 2019–2023: Front cigarette lighter / 12 V power outlet | 2015–2018: Unassigned / Spare
30 Automatic transmission gear shift lever module
31 Rear window wiper motor switch
32 Transmission Control Module (TCM) feed
33 Anti-theft security alarm system siren
34 USB data interface, Side Blind Zone Alert (SBZA), Park Assist module, Infotainment system
35 OnStar telematics control module
36 Infotainment head unit, Instrument Cluster (IPC), Multi-Information Display (MID)
37 Infotainment main unit / Radio module

Luggage Compartment Fuse Box


The rear power distribution box is located behind the left-hand quarter trim access panel in the trunk/cargo area.

Diagram
No. Function / Protected Circuit
F1 Unassigned / Spare
F2 2015–2018: DC/AC 230 V power inverter module
F3 Trailer interface module
F4 2015–2018: Power passenger seat module
F5 Unassigned / Spare
F6 2015–2018: Long-range radar / Adaptive Cruise Control (ACC) module
F7 Unassigned / Spare
F8 Unassigned / Spare
F9 2015–2018: Heated rear outer seats (vehicles without anti-theft alarm system)
F10 2015–2019: Service / Diagnostic provision
F11 Audio system power amplifier module
F12 Heated front seats (vehicles with anti-theft alarm system)
F13 Heated rear outer seats (vehicles with anti-theft alarm system)
F14 Ignition voltage feed switch
F15 Front seat ventilation climate system
F16 Trailer wiring harness socket circuit 1
F17 Trailer wiring harness socket circuit 2
F18 Unassigned / Spare
F19 Unassigned / Spare
F20 Unassigned / Spare
F21 Power-folding rear seat backrest mechanism
F22 Power liftgate / Tailgate actuator module
See also:
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