
Looking for Volkswagen Passat fuse box diagrams? This article covers the eighth-generation Volkswagen Passat (Model Code: B8) before the facelift, produced from 2014 to 2019, and includes fuse box diagrams for Volkswagen Passat (B8) 2014, 2015, 2016, 2017, 2018 and 2019, along with information about the location of the fuse panels inside the vehicle and a clear explanation of the assignment of each fuse and relay (fuse layout).
What’s Included
ToggleEngine Compartment
Fuse Box Location

Fuse Box Diagram (-SA-)

High Voltage Fuses
Assignment of the high voltage fuses in the engine compartment fuse box (SA)
| No. | Amps | Description |
|---|---|---|
| SA1 | 125A | battery at front: Supply for fuse holder C – Terminal 30_1, Fuses 2, 4 to 14, 22, 31, 38 to 39, 41, 42, 46, 51, 53, Relay for power sockets, Terminal 15 voltage supply relay |
| 80A | battery at rear: Radiator fan | |
| SA2 | 400A | Alternator |
| SA3 | 80A | battery at front: Power steering control unit |
| SA4 | 80A | battery at front: Supply for fuse holder C – Fuses 1, 3, 15 to 21, 23 to 28, 43 to 45, 50 battery at rear: Power steering control unit |
| SA5 | 50A | battery at front: Radiator fan battery at rear: Supply for fuse 4 on fuse holder A – Power steering control unit |
Fuse Box Diagram (-SA-) Hybrid

High Voltage Fuses
Assignment of the high voltage fuses for Hybrid drive vehicles in the engine compartment fuse box (SA)
| No. | Amps | Description |
|---|---|---|
| SA1 | 125A | Supply for fuse holder C – Terminal 30_1, Fuses 2, 4 to 14, 22, 31, 38 to 39, 41 to 42, 46, 51, 53, Relay for power sockets, Terminal 15 voltage supply relay |
| SA2 | 400A | Alternator Power and control electronics for electric drive |
| SA3 | 80A | Power steering control unit |
| SA4 | 80A | Supply for fuse holder C – Terminal 30_2, Fuses 1, 3, 15 to 21, 23 to 28, 43 to 45, 50 |
| SA5 | 80A | Radiator fan |
| SA6 | 50A | Mechatronic unit for dual clutch gearbox (Dual clutch gearbox ODD) |
Fuse Box Diagram (-SB-)

Fuses
Assignment of the fuses in the engine compartment fuse box (SB)
| No. | Amps | Description |
|---|---|---|
| SB1 | up to Apr 2017: 40A from May 2017: 25A | ABS control unit |
| SB2 | 40A | ABS control unit, ABS hydraulic pump |
| SB3 | 15A (petrol, hybrid) 30A (diesel) | Engine/motor control unit |
| SB4 | 10A (petrol+ACT, 1.8-2.0L petrol, hybrid) up to June 2018: 5A (diesel) from July 2018: 7.5A (petrol, diesel+SCR) | Radiator fan, Oil level and oil temperature sender, Relay for reducing agent metering system, High and low heat output relay, Charge pressure positioner, Activated charcoal filter solenoid valve 1, Exhaust camshaft control valve 1, Camshaft control valve 1, Valve for oil pressure control, Inlet and exhaust cam actuator for cylinder 2 and 3, Fuel cooling valve, Exhaust gas recirculation cooler changeover valve, Charge pressure control solenoid valve from Feb 2015: Intake manifold flap valve, Turbocharger air recirculation valve, Power steering control unit (1.8-2.0L petrol) |
| SB5 | 10A | Fuel pressure regulating valve, Fuel metering valve, Camshaft control valve 1 from Feb 2015: Exhaust cam actuator A and B for cylinder 1 to 4 (1.8-2.0L petrol), Injector cylinder 1 to 4 (1.8-2.0L petrol), Engine component current supply relay (1.8-2.0L petrol), Coolant valve for gearbox (hybrid), Coolant pump for high-voltage battery (hybrid), Coolant pump for high-temperature circuit (hybrid) |
| SB6 | up to June 2018: 5A from July 2018: 7.5A | Brake light switch |
| SB7 | 10A (petrol, diesel) 15A (diesel+SCR, hybrid) 7.5A (1.8-2.0L petrol) | Fuel metering valve, Circulation pump, Radiator blind control motor, Coolant valve for cylinder head, Valve for oil pressure control, Exhaust gas recirculation cooler changeover valve, Charge pressure positioner, Charge air cooling pump, Auxiliary pump for heating from Feb 2015: Coolant pump for high-temperature circuit, Coolant valve for gearbox, Coolant shut-off valve, Gearbox oil cooling pump, Fuel pressure regulating valve (hybrid), Coolant changeover valve 1 and 2 (hybrid), Coolant pump for low-temperature circuit (hybrid) |
| SB8 | 10A (petrol) 15A (diesel, 1.8-2.0L petrol, hybrid) | Lambda probe 1 before and after catalytic converter, Lambda probe heater before and after catalytic converter, NOx sender from July 2018: Particulate sensor (Euro 6 AG/H/I) |
| SB9 | 20A (petrol, hybrid) 10A (1.8-2.0L petrol) up to June 2018: 5A (diesel) from July 2018: 7.5A (diesel) | Ignition coil 1 to 4 with output stage, Heater element for crankcase breather, Automatic glow period control unit, Air mass meter from Feb 2015: Charge air cooling pump, Activated charcoal filter solenoid valve 1, Exhaust camshaft control valve 1, Camshaft control valve 1 |
| SB10 | 20A (depending on equipment) 10A / 15A (depending on equipment, hybrid) | Fuel pump control unit |
| SB11 | 40A | Auxiliary air heater element |
| SB12 | 40A | Auxiliary air heater element |
| SB13 | 30A 15A | up to June 2018: Mechatronic unit for dual clutch gearbox (0CW, 0GC, 0D9), Auxiliary hydraulic pump 1 for gearbox oil |
| 7.5A (hybrid) | from July 2018: Brake servo (hybrid) | |
| SB14 | 40A / 30A (depending on equipment) | Heated windscreen relay |
| SB15 | 15A | Horn relay |
| SB16 | 20A (1.8-2.0L petrol) 10A (hybrid) | from Feb 2015: Engine component current supply relay, Power and control electronics for electric drive, Charging unit 1 for high-voltage battery |
| SB17 | 7.5A | Main relay (petrol), Terminal 30 voltage supply relay (diesel), Engine/motor control unit, ABS control unit, Heated windscreen relay |
| SB18 | up to June 2018: 5A from July 2018: 7.5A | Battery monitor control unit (battery at front), Data bus diagnostic interface |
| SB19 | 30A | Wiper motor control unit |
| SB20 | 10A | up to June 2018: Alarm horn |
| – | from July 2018: Not Assigned | |
| SB21 | 30A | up to June 2018: Heated windscreen relay 2 |
| 15A | from July 2018: Mechatronic unit for dual clutch gearbox (0CW, 0GC, 0D9), Auxiliary hydraulic pump 1 for gearbox oil | |
| SB22 | up to June 2018: 5A from July 2018: 7.5A | Engine/motor control unit, Special vehicle fuse |
| SB23 | 30A | Starter |
| SB24 | 40A | Auxiliary air heater element, Brake servo (hybrid, from Feb 2015) |
| SB25 – SB31 | – | – |
| SB32 | 30A | from July 2018: Heated windscreen (battery at rear) |
| SB33 | 15A 30A (hybrid, 0GC) | Mechatronic unit for dual clutch gearbox (0DL, 0GC), Brake system pressure accumulator (hybrid) |
| SB34 | 5A | up to June 2018 (from Feb 2015): Brake servo (hybrid) |
| 30A | from July 2018: Heated windscreen (battery at front) | |
| SB35 | 30A (battery at rear) 7.5A (hybrid) | Wiper motor control unit, Air conditioning system relay (hybrid, from Feb 2015) |
| SB36 – SB38 | – | – |
Relays
Assignment of the relays in the engine compartment fuse box (SB)
| No. | Description |
|---|---|
| R1 | Starter relay 1 |
| R2 | Starter relay 2 |
| R3 | Horn relay |
| R4 | High heat output relay (auxiliary air heater) |
| R5 | Main relay (petrol) Terminal 30 voltage supply relay (diesel) |
| R6 | Automatic glow period control unit (diesel) Coolant shortage indicator control unit (hybrid) |
| R7 | Low heat output relay (auxiliary air heater) |
| R8 | Air conditioning system relay (hybrid) Engine component current supply relay (1.8-2.0L petrol, from Feb 2015) |
| R9-R10 | Heated windscreen relay / Heated windscreen relay 2 |
Passenger Compartment
Fuse Box Location
Left-Hand Drive

Right-Hand Drive

Fuse Box Diagram (-SC-)

Fuses
Assignment of the fuses in the passenger compartment fuse box (SC)
| No. | Amps | Description |
|---|---|---|
| SC1 | up to Oct 2017: 30A from Nov 2017: 30A / 20A (depending on equipment) | Control unit for reducing agent heater |
| SC2 | 10A | Steering column electronics control unit (heated steering wheel) |
| SC3 | – | up to Oct 2015: Not Assigned |
| – | Nov 2015 to Oct 2016: Special vehicle fuse | |
| – | from Nov 2016: Not Assigned | |
| SC4 | – | up to Jun 2018: Not Assigned |
| 7.5A | from Jul 2018: Alarm horn | |
| SC5 | up to Oct 2017: 5A from Nov 2017: 7.5A | Data bus diagnostic interface |
| SC6 | 5A | up to Oct 2015: Anti-theft alarm sensor |
| up to Oct 2017: 5A from Nov 2017: 7.5A | from Nov 2015: Selector lever | |
| SC7 | 10A | up to Oct 2015: Heater and air conditioning controls, Selector lever, Remote control receiver for auxiliary coolant heater, Heated rear window relay, Analogue clock, Operating and display unit for rear air conditioning system, Tyre Pressure Monitoring System control unit |
| 10A | from Nov 2015: Heater and air conditioning controls, Remote control receiver for auxiliary coolant heater, Heated rear window relay, Analogue clock, Operating and display unit for rear air conditioning system, Magnetic clutch relay (depending on equipment), Tyre Pressure Monitoring System control unit (depending on equipment) | |
| SC8 | 10A | up to Oct 2015: Rotary light switch, Electromechanical parking brake button, Rain and light sensor, Diagnostic connection, Front interior light (depending on equipment), Left and right dashboard background lighting (depending on equipment), Front and rear door contour lighting (depending on equipment) |
| 10A | Nov 2015 to Oct 2016: Rotary light switch, Electromechanical parking brake button, Rain and light sensor, Diagnostic connection, Anti-theft alarm sensor, Front interior light (depending on equipment), Left and right dashboard background lighting (depending on equipment), Front and rear door contour lighting (depending on equipment) | |
| up to Oct 2017: 10A from Nov 2017: 7.5A | from Nov 2016: Rotary light switch, Electromechanical parking brake button, Rain and light sensor, Diagnostic connection, Anti-theft alarm sensor, Front interior light (depending on equipment), Left and right dashboard background lighting (depending on equipment), Front and rear door contour lighting (depending on equipment), Control unit for cornering light and headlight range control (depending on equipment) | |
| SC9 | up to Oct 2015: 1A Nov 2015 to Oct 2017: 5A from Nov 2017: 7.5A | Steering column electronics control unit |
| SC10 | 10A | up to Oct 2015: Display unit for front information display and operating unit control unit, TV tuner |
| 7.5A | Nov 2015 to Oct 2016: Display unit for front information display and operating unit control unit, TV tuner, Special vehicle fuse | |
| 7.5A | Nov 2016 to Oct 2017: Display unit for front information display and operating unit control unit, Control unit for Head-up Display | |
| up to Jun 2018: 7.5A from Jul 2018: 10A | from Nov 2017: Display unit for front information display and operating unit control unit, Control unit for Head-up Display (depending on equipment), TV tuner (depending on equipment), CD player (depending on equipment) | |
| SC11 | 25A | up to Oct 2017: Control unit for front left belt tensioner |
| 40A | from Nov 2017: Onboard supply control unit – Front left headlight | |
| SC12 | up to Oct 2017: 20A (depending on equipment) 5A (radio Composition Colour) from Nov 2017: 20A (depending on equipment) 7.5A (radio Composition Colour) | Control unit 1 for information electronics |
| SC13 | 15A | up to Oct 2017: Electronically controlled damping control unit |
| 25A | from Nov 2017: Control unit for front left belt tensioner | |
| SC14 | up to Oct 2016: 30A from Nov 2016: 40A | Fresh air blower control unit |
| SC15 | 10A | Control unit for electronic steering column lock |
| SC16 | 7.5A | up to Oct 2015: Two-way signal amplifier for mobile telephone/data services, Storage compartment with interface for mobile telephone, USB hub, Chip card reader |
| 7.5A | Nov 2015 to Oct 2016: Two-way signal amplifier for mobile telephone/data services, Storage compartment with interface for mobile telephone, USB hub, Chip card reader, Control unit for Head-up Display | |
| 7.5A | from Nov 2016: Two-way signal amplifier for mobile telephone/data services, Storage compartment with interface for mobile telephone, USB hub, Chip card reader, TV tuner, Special vehicle fuse | |
| SC17 | 5A | up to Oct 2015: Dash panel insert |
| 5A 7.5A (hybrid) | Nov 2015 to Oct 2017: Dash panel insert, Emergency call module control unit and communication unit (hybrid) | |
| 7.5A | from Nov 2017: Dash panel insert, Emergency call module control unit and communication unit (hybrid), Telematics control unit for real-time monitoring (depending on equipment) | |
| SC18 | 7.5A | Reversing camera, Rear lid handle release button, Control unit for overhead view camera, Rear overhead view camera |
| SC19 | 7.5A | Interface for entry and start system |
| SC20 | up to Oct 2017: 7.5A from Nov 2017: 7.5A / 10A (depending on equipment) | Relay for reducing agent metering system |
| SC21 | 15A | All-wheel drive control unit |
| SC22 | 15A | Trailer detector control unit |
| SC23 | 40A | up to Oct 2017: Onboard supply control unit – Front right headlight |
| up to Jun 2018: 30A from Jul 2018: 20A | from Nov 2017: Sliding sunroof adjustment control unit | |
| SC24 | 30A | up to Oct 2017: Sliding sunroof adjustment control unit |
| 40A | from Nov 2017: Onboard supply control unit – Front right headlight | |
| SC25 | 30A | Door control units (driver, front passenger, rear left), Rear left window regulator motor |
| SC26 | 30A | Onboard supply control unit – Seat heating |
| SC27 | up to Oct 2015: 30A Nov 2015 to Oct 2017: 40A | up to Oct 2017: Digital sound package control unit |
| 30A | from Nov 2017: Onboard supply control unit | |
| SC28 | up to Oct 2015: 20A from Nov 2015: 25A | Trailer detector control unit |
| SC29 | – | up to Oct 2015: Not Assigned |
| – | Nov 2015 to Oct 2016: Special vehicle fuse | |
| – | from Nov 2016: Not Assigned | |
| SC30 | – | up to Oct 2015: Not Assigned |
| 10A | from Nov 2015: High-voltage battery 1 (hybrid), Maintenance connector for high-voltage system (hybrid) | |
| SC31 | 40A | up to Oct 2017: Onboard supply control unit – Front left headlight |
| – | Nov 2017 to Jun 2018: Not Assigned | |
| 30A | from Jul 2018: Rear lid control unit | |
| SC32 | 7.5A 10A (blind spot monitor) | Front camera for driver assist systems, Adaptive cruise control unit, Parking aid control unit, Park assist steering control unit, Blind Spot Monitor control unit |
| SC33 | up to Oct 2017: 5A from Nov 2017: 7.5A | Airbag control unit, Warning lamp for airbag deactivated on front passenger side |
| SC34 | 7.5A | Electromechanical parking brake button, Interior mirror, Relay for power sockets, Pedestrian protection warning lamp, Switch module 2 in centre console, Pressure sender for refrigerant circuit, External air quality and air humidity sensor |
| SC35 | up to Oct 2017: 10A from Nov 2017: 7.5A | Diagnostic connection, Headlight range control and instrument illumination regulator, Control unit for cornering light and headlight range control, Front left and right headlight (and range control motors) |
| SC36 | up to Oct 2017: 5A from Nov 2017: 7.5A | Front right headlight – Output module 1 for right LED headlight |
| SC37 | up to Oct 2017: 5A from Nov 2017: 7.5A | Front left headlight – Output module 1 for left LED headlight |
| SC38 | 25A | Trailer detector control unit |
| SC39 | 30A | Door control units (driver, front passenger, rear right), Rear right window regulator motor |
| SC40 | 20A | Cigarette lighter, 12 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. |
| SC41 | 25A | Control unit for front right belt tensioner |
| SC42 | 40A | Onboard supply control unit – Central locking |
| SC43 | 30A | up to Oct 2017: Onboard supply control unit |
| 40A | from Nov 2017: Digital sound package control unit | |
| SC44 | 15A | Trailer detector control unit |
| SC45 | 15A | Driver seat lumbar support adjustment switch, Driver seat adjustment operating unit, Driver seat adjustment control unit, Operating unit for front left seat adjustment, Massage control unit, Front left seat cushion and backrest fan 1 |
| SC46 | 30A | DC/AC converter with socket, 12 V – 230 V |
| SC47 | 15A 7.5A | Rear window wiper motor, Rear roller blind control unit |
| SC48 | – | up to Oct 2015: Not Assigned |
| 7.5A | from Nov 2015: Engine sound generator control unit (hybrid) | |
| SC49 | 5A | up to Oct 2017: Clutch position sender, Starter relay 1 and 2 from Nov 2015: High-voltage battery 1 (hybrid) |
| 7.5A | from Nov 2017: Clutch position sender, Starter relay 1 and 2, High-voltage battery 1 (hybrid) | |
| SC50 | 40A | Rear lid control unit |
| SC51 | 25A | Operating and display unit for rear air conditioning system |
| SC52 | – | up to Oct 2017: Not Assigned |
| 15A | from Nov 2017: Electronically controlled damping control unit | |
| SC53 | 30A | Heated rear window relay |
Relays
Assignment of the relays in the passenger compartment fuse box (SC)
Fuse Box Diagram (Thermal Fuse)
Seat adjustment thermal fuse behind fuse holder -SC-.

Fuses
Assignment of the thermal fuse in the passenger compartment behind fuse box (SC)
Luggage Compartment
Location and Diagram (-SD-)
Only for models with battery in luggage compartment.

Fuses
Assignment of the fuses in the luggage compartment fuse box (SD)
| No. | Amps | Description |
|---|---|---|
| SD1 | 80A | Supply for fuse 4 on fuse holder A (Terminal 30) |
| SD2 | 110A | Supply for fuse holder C – Terminal 30_2, Fuses 1, 3, 15 to 21, 23 to 28, 43 to 45, 50 |
| SD3 | 110A | Supply for fuse holder C – Terminal 30_1, Fuses 2, 4 to 14, 22, 31, 38 to 39, 41 to 42, 46, 51, 53, Relay for power sockets, Terminal 15 voltage supply relay |
Location and Diagram (-SD-) Hybrid Drive

Fuses
Assignment of the fuses in the luggage compartment fuse box (SD) for hybrid drive vehicles
Additional Fuses (Hybrid)
Switching Unit Location and Diagram
Location and diagram of switching unit for high-voltage battery -SX6-.

Fuses
Assignment of the fuses in the switching unit fuse box for hybrid drive vehicles
Power/Control Location and Diagram
Power and control electronics for electric drive.

Fuse
Assignment of the additional fuse in the engine compartment fuse box for hybrid drive vehicles






