Volkswagen Passat (2019-2023)

Looking for Volkswagen Passat fuse box diagrams? This article covers the facelifted eighth-generation Volkswagen Passat (Model Code: B8), produced from 2019 to 2023, and includes fuse box diagrams for Volkswagen Passat (B8) 2019, 2020, 2021, 2022 and 2023, along with details about the location of the fuse panels inside the vehicle and a clear explanation of the assignment of each fuse and relay (fuse layout).

Engine Compartment (-SB-)

Fuse Box Location

Fuse box B (-SB-) is located on the driver side in the engine compartment.

Multistrip Fuse Box Diagram

High Voltage Fuses

Assignment of the high voltage fuses for the vehicles with battery in engine/luggage compartment and for Hybrid Drive vehicles

Fuse Data
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No.AmpsDescription
SBJ125AIf battery in engine compartment:
Heated rear window relay
Terminal 15 voltage supply relay
Relay for power sockets
Fuses 4 to 14, 31 to 35, 38 to 42, 47 to 49, 53 on fuse holder C
80AIf battery in luggage compartment:
Radiator fan
125AHybrid Drive:
Radiator fan
SBG400AIf battery in engine/luggage compartment:
Alternator with voltage regulator
400AHybrid Drive:
Power and control electronics for electric drive
508–If battery in engine compartment:
Threaded connection (30), on E-box – Battery
–Hybrid Drive and If battery in luggage compartment:
Threaded connection (30), on E-box – Fuse 3 on fuse holder G, Jump start connection
SBE80AIf battery in engine compartment:
Power steering control unit
–Hybrid Drive and If battery in luggage compartment:
Not Assigned
SBK80AIf battery in engine compartment:
Fuses 15 to 20, 23 to 28, 43 to 45 on fuse holder C
80AHybrid Drive and If battery in luggage compartment:
Power steering control unit
SBL50AIf battery in engine/luggage compartment:
Radiator fan
80AHybrid Drive:
Radiator fan
SBP–If battery in engine/luggage compartment:
Not Assigned
50AHybrid Drive:
Mechatronic unit for dual clutch gearbox

Main Fuse Box Diagram

Fuses

Assignment of the fuses in the engine compartment fuse box (B)

Fuse Data
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No.AmpsDescription
SB125AABS control unit
SB240A
60A (pedestrian protection system)		ABS control unit
SB315Apetrol (all years), diesel with emissions standard EU6 AP (from Nov 2020):
Engine/motor control unit
30Adiesel (up to Nov 2020), diesel except emissions standard EU6 AP (from Nov 2020):
Engine/motor control unit
SB47.5A (diesel)
10A (petrol)		Air mass meter, Oil level and oil temperature sender, Changeover valve, Camshaft control valve 1, Turbocharger air recirculation valve, Fuel pressure regulating valve, Fuel metering valve, Intake manifold flap valve, Exhaust camshaft control valve 1, Valve for oil pressure control, Coolant valve for cylinder head, Turbine changeover valve, Inlet camshaft control valve 1, Charge pressure control solenoid valve, Activated charcoal filter solenoid valve 1, Charge air cooling pump, Auxiliary pump for heating, Coolant circulation pump, Radiator fan
diesel:
Automatic glow period control unit, Low and high heat output relay, Glow plug 1 and 3
2.0L petrol:
Air conditioning system relay, Engine component power supply relay (from Nov 2020)
SB510AFuel pressure regulating valve, Fuel metering valve, Injector 2 (cylinder 1 to 4), Inlet and exhaust cam actuator A and B (cylinder 1 to 4), Charge pressure control solenoid valve, Coolant pump for high-temperature circuit
diesel:
Glow plug 2
SB67.5ABrake pedal switch
SB710A
7.5A
15A (2.0L bi-turbo, hybrid)		Changeover valve, Turbocharger air recirculation valve, Intake manifold flap valve, Exhaust gas recirculation cooler changeover valve, Valve for oil pressure control, Coolant valve for gearbox, Coolant valve for cylinder head, Actuator for engine temperature regulation, Piston cooling jet control valve, Heater element for crankcase breather, Coolant shut-off valve, Glow plug 1, Coolant pump, Charge air cooling pump, Auxiliary pump for heating
hybrid:
Coolant pump for low-temperature circuit
2.0L petrol (from Nov 2020):
Coolant circulation pump
SB810A
15A		Particulate sensor, NOx sender 3, Lambda probe 1 before and after catalytic converter, Control unit 1 and 2 for NOx sender
SB910A (petrol, 2.0L petrol)
20A (petrol)		Ignition coil 1 to 4 with output stage, Camshaft control valve 1, Exhaust camshaft control valve 1, Activated charcoal filter solenoid valve 1, Auxiliary pump for heating, Coolant circulation pump
SB1015A (petrol)
20A (diesel)		Fuel pump control unit
SB1140A (diesel)Auxiliary air heater element
SB1240A (diesel)Auxiliary air heater element
SB137.5A (hybrid)
30A		Auxiliary hydraulic pump 1 for gearbox oil
SB1440AHeated windscreen relay
SB1515AHorn relay
SB1610A (hybrid)
20A (2.0L petrol)		hybrid:
Charging unit 1 for high-voltage battery
2.0L petrol:
Engine component power supply relay
SB177.5AABS control unit, Main relay, Heated windscreen relay, Engine/motor control unit
SB187.5AData bus diagnostic interface
Battery monitor control unit
SB1930A (battery in engine compartment)Wiper motor control unit
SB2040ABrake servo
SB2115A (dual clutch gearbox 0D9, 0DL, 0GC)
30A (dual clutch gearbox 0CW)		Mechatronic unit for dual clutch gearbox
SB227.5AEngine/motor control unit
special equipment:
Voltage stabiliser
SB2330AStarter
SB2440A (diesel)Auxiliary air heater element
SB3110Ahybrid:
Fuel tank shut-off valve, Coolant circulation pump before power and control electronics for electric drive, Coolant pump for high-voltage battery
SB3230AHeated windscreen relay 2
SB3315A (dual clutch gearbox 0D9, 0DL, 0GC)
30A (dual clutch gearbox 0CW)		Mechatronic unit for dual clutch gearbox
SB3430AHeated windscreen relay 2
SB357.5A (hybrid)
30A (battery in luggage compartment)		hybrid:
Air conditioning system relay
battery in luggage compartment:
Wiper motor control unit
SB3615AFront left headlight
SB3720AAuxiliary heater control unit
SB3815AFront right headlight

Relays

Assignment of the relays in the engine compartment fuse box (B)

Fuse Data
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No.Description
R1Starter relay 1
R2Starter relay 2
R3Horn relay
R4High heat output relay (diesel)
R5Main relay (petrol)
Terminal 30 voltage supply relay (diesel)
R6Automatic glow period control unit (diesel)
Coolant shortage indicator control unit (hybrid)
R7Low heat output relay (diesel)
R8Air conditioning system relay (hybrid)
Engine component power supply relay (2.0L petrol)
R9Heated windscreen relay (heated windscreen 4GX)
R10Heated windscreen relay 2 (heated windscreen 4GX)
R9-R10Heated windscreen relay (heated windscreen 4GW)

Passenger Compartment (-SC-)

Fuse Box Location

Left-Hand Driver

Right-Hand Drive

Fuse Box Diagram

Fuses

Assignment of the fuses in the passenger compartment fuse box (C)

Fuse Data
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No.AmpsDescription
SC130Adiesel:
Control unit for reducing agent heater
SC210ASteering column electronics control unit (heated steering wheel)
SC3––
SC47.5AAlarm horn
SC57.5AData bus diagnostic interface
SC67.5ASelector lever
SC710AOperating and display unit for rear air conditioning system
Heater and air conditioning controls
Heated rear window relay
Magnetic clutch relay
Tyre Pressure Monitoring System control unit
Remote control receiver for auxiliary coolant heater
SC87.5AElectromechanical parking brake button
Rotary light switch
Anti-theft alarm sensor
Air humidity, rain and light sensor
Control unit for cornering light and headlight range control
Dash panel contour lighting
Front and rear door contour lighting
Diagnostic connection
Front roof module
SC97.5ASteering column electronics control unit
SC10up to July 2021:
7.5A
from July 2021:
10A		Display unit for front information display and operating unit control unit
Control unit for Head-up Display
SC1140AOnboard supply control unit – exterior lighting on the left side (silver-plated contacts)
SC1220AControl unit 1 for information electronics
SC1325AFront seat belt (driver and passenger side)
SC1440AFresh air blower control unit (silver-plated contacts)
SC1510AControl unit for electronic steering column lock
SC167.5Aup to June 2020:
Storage compartment with interface for mobile telephone
USB hub
Aerial amplifier for mobile telephone
7.5Afrom June 2020:
Storage compartment with interface for mobile telephone
USB hub
Aerial amplifier for mobile telephone
TV tuner
10Afrom July 2022:
Storage compartment with interface for mobile telephone
Aerial amplifier for mobile telephone
TV tuner
USB charging socket 1
USB connection 1
SC177.5AEmergency call module control unit and communication unit
Dash panel insert
SC187.5ARear lid handle
Control unit for overhead view camera
Rear lid power opening control unit
SC197.5ADriver and front passenger exterior door handle (near field communication)
Entry and start authorisation control unit
SC207.5A
10A (depending on equipment)		diesel:
Relay for reducing agent metering system
SC2115AAll-wheel drive control unit
SC2215ATrailer detector control unit
SC2320ASliding sunroof adjustment control unit
SC2440AOnboard supply control unit – exterior lighting on the right side (silver-plated contacts)
SC2530ADoor control units (driver, passenger, rear left, rear right)
SC2630AOnboard supply control unit – seat heating
SC2730AOnboard supply control unit – interior lighting
SC2825ATrailer detector control unit
SC29––
SC3010Ahybrid:
High-voltage battery 1
Maintenance connector for high-voltage system
SC3130ARear lid control unit
SC32up to July 2021:
7.5A
from July 2021:
7.5A
10A (depending on equipment)		Adaptive cruise control unit
Parking aid control unit
Lane change assist control unit 1 and 2
Front camera for driver assist systems
SC337.5AAirbag control unit
Airbag warning lamp
SC347.5AElectromechanical parking brake button
Switch module 2 in centre console
Interior mirror
Reversing light switch
Pressure sender for refrigerant circuit
External air quality and air humidity sensor
Relay for power sockets
Control unit for structure-borne sound
SC357.5ADiagnostic connection
SC36––
SC37––
SC3825ATrailer detector control unit
SC3930ADoor control units (driver, passenger, rear left, rear right)
SC4020A12 V sockets 1, 2, and 3
*Note: Factory supplied via terminal 15. Can be reconnected to terminal 30, but ensure consumers are disconnected when engine is off to prevent battery discharge.
SC4125AFront seat belt (driver and passenger side)
SC4240AOnboard supply control unit – central locking system (silver-plated contacts)
SC43up to June 2020:
30A
from June 2020:
40A		Digital sound package control unit
SC4415ATrailer detector control unit
SC4515ADriver and front passenger seat adjustment and lumbar support switches
Massage control unit
Driver seat adjustment control unit
Front left seat backrest and cushion fan 1
SC4630Aup to June 2020:
DC/AC converter with socket, 12 V – 230 V
7.5Afrom June 2020:
USB charging socket 1
–from July 2022:
Not Assigned
SC477.5A (Saloon)
15A (Estate)		Rear roller blind control unit (Saloon)
Rear window wiper motor (Estate)
SC487.5AEngine sound generator control unit
SC497.5Aup to June 2020:
High-voltage battery 1 (hybrid)
Clutch position sender
7.5Afrom June 2020:
High-voltage battery 1 (hybrid)
Clutch position sender
Starter relay 2
SC50––
SC5125AOperating and display unit for rear air conditioning system
SC5215AElectronically controlled damping control unit
SC5330AHeated rear window relay

Relays

Assignment of the relays in the passenger compartment fuse box (C)

Fuse Data
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No.Description
R1diesel:
Relay for reducing agent metering system
R2Magnetic clutch relay
R3–
R4Terminal 15 voltage supply relay
R5Heated rear window relay
R6Relay for power sockets

Passenger Compartment (Single Fuses)

Location and Diagram (LHD)

Fuses

Assignment of the single fuses in the passenger compartment fuse box (Left-Hand Drive)

Fuse Data
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No.AmpsDescription
A15AFront passenger seat adjustment thermal fuse 1 – Front passenger seat lumbar support adjustment switch, Front passenger seat adjustment operating unit, Front right seat backrest fan 1, Front right seat cushion fan 1
B––
C7.5Aup to June 2020:
USB charging socket 1
30Afrom June 2020:
DC/AC converter with socket, 12 V – 230 V

Location and Diagram (RHD)

Fuses

Assignment of the single fuses in the passenger compartment fuse box (Right-Hand Drive)

Fuse Data
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No.AmpsDescription
A15AFront passenger seat adjustment thermal fuse 1 – Driver seat lumbar support adjustment switch, Driver seat adjustment operating unit, Front left lumbar support adjustment switch, Massage control unit, Driver seat adjustment control unit, Front right seat backrest fan 1, Front right seat cushion fan 1
B––
C––
D––
E––
F––
G––
H7.5Aup to June 2020:
USB charging socket 1
–from June 2020:
Not Assigned
I––
J–up to June 2020:
Not Assigned
7.5Afrom June 2020:
DC/AC converter with socket, 12 V – 230 V
K––
L––
M––
N––

Luggage Compartment (-SG-)

Location and Diagram

Only for models with battery in luggage compartment.

Fuses

Assignment of the fuses in the luggage compartment fuse box (Only for model with battery in luggage compartment)

Fuse Data
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No.AmpsDescription
SG180AFuse 15 on fuse holder C -SC15- to fuse 20 on fuse holder C -SC20-
Fuse 23 on fuse holder C -SC23- to fuse 28 on fuse holder C -SC28-
Fuse 43 on fuse holder C -SC43- to fuse 45 on fuse holder C -SC45-
SG2125AHeated rear window relay -J9-
Terminal 15 voltage supply relay -J329-
Relay for power sockets -J807-
Fuse 4 on fuse holder C -SC4- to fuse 14 on fuse holder C -SC14-
Fuse 31 on fuse holder C -SC31- to fuse 35 on fuse holder C -SC35-
Fuse 38 on fuse holder C -SC38- to fuse 42 on fuse holder C -SC42-
Fuse 47 on fuse holder C -SC47- to fuse 49 on fuse holder C -SC49-
Fuse 53 on fuse holder C -SC53-
SG3125AHigh heat output relay -J360-
Horn relay -J413-
Starter relay 1 -J906-
Starter relay 2 -J907-
Fuse G on fuse holder B -SBG-
Fuse E on fuse holder B -SBE-
Fuse J on fuse holder B -SBJ-
Fuse K on fuse holder B -SBK-
Fuse L on fuse holder B -SBL-
Fuse P on fuse holder B -SBP-
Fuse 11 on fuse holder B -SB11-
Fuse 12 on fuse holder B -SB12-
Fuse 16 on fuse holder B -SB16- to Fuse 23 on fuse holder B -SB23-

Additional Fuses for Hybrid Drive

High-Voltage System Location and Diagram

Fuses

Assignment of the additional fuse in the engine compartment fuse box (for Hybrid Drive System)

Fuse Data
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No.AmpsDescription
A80AHigh-voltage system fuse 3 -S353-
– Power and control electronics for electric drive -JX1-

Fuse Box (-SF-) Location and Diagram

Fuse

Assignment of the additional fuses in the luggage compartment fuse box (for Hybrid Drive System)

Fuse Data
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No.AmpsDescription
SF1From May 2019:
175A
From July 2021:
225A		Main relay -J271-
Fuse 13 on fuse holder B -SB13-
Fuse 14 on fuse holder B -SB14- to Fuse 21 on fuse holder B -SB21-
Fuse G on fuse holder B -SBG-
Fuse J on fuse holder B -SBJ-
Fuse K on fuse holder B -SBK-
Fuse 33 on fuse holder B -SB33- to fuse 38 on fuse holder B -SB38-

Switching Unit Location and Diagram

Switching unit for high-voltage battery -SX6-.

High Voltage Fuse

Assignment of the fuses in fuse box under the vehicle (for Hybrid Drive System)

Fuse Data
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No.AmpsDescription
A350AHigh-voltage system fuse 1 -S350-
– High-voltage battery 1 -AX2-

Relays

Assignment of the relays in fuse box under the vehicle (for Hybrid Drive System)

Fuse Data
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No.Description
R1Precharge contactor for high-voltage battery -J1044-
R2High-voltage battery power contactor 1 -J1057-
R3High-voltage battery power contactor 2 -J1058-

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