This material examines in detail the fuse diagrams of the Volkswagen Passat (eighth generation; factory index Typ 3G / B8): 2014, 2015, 2016, 2017, 2018, 2019 model years.
Fuse number 40 in the passenger compartment unit is responsible for protecting the electrical circuit of the charging sockets and the cigarette lighter.
In the engine compartment
The fuse box is located on the left side of the engine compartment. To access it, remove the protective cover.
Access example.
Diagram
№
Description
Current, A
R1
Starter relay 1
R2
Starter relay 2
R3
Horn relay
R4
High Thermal Power Relay (Auxiliary Air Heater Models Only)
R5
Diesel: Voltage supply relay (terminal 30)
Gasoline: Main relay
R6
Hybrid: Low Coolant Indicator Control Unit
Diesel: Automatic glow plug control unit
R7
Low heat output relay (models with additional air heater)
R8
1.8–2.0 l petrol engine: Engine component power relay
Hybrid: Air conditioning relay
R9
Heated windshield relay 1
R1
Heated windshield relay 2
SA1
Voltage relay for terminal 15, Protection of circuits No.: 2, 14, 22, 31, 38, 41, 46, 51, 53 in the passenger compartment, Relay for sockets, Radiator fan (only models with a battery at the rear)
125 / 80
SA2
Generator
400
SA3
Power steering control unit (battery front models only)
80
SA4
Circuit Protection No.: 1, 3, 15, 21, 23, 28, 43, 45, 50 in the cabin unit, Terminal 30, Power Steering Control Module (rear battery models only)
80
SA5
Power Steering Control Module (Rear Battery Models Only), Radiator Fan, Fuse 4 Supply in Fuse Holder A
50
1
ABS control unit
25 / 40
2
ABS hydraulic pump, ABS control unit
40
3
engine control module
15 / 30
4
Oil level and temperature sensor, Radiator fan, Reductant dosing system relay, Low/high heat output relay, Activated carbon filter solenoid valve 1, Camshaft control valve 1, Cylinder 2 and 3 intake and exhaust cam actuator, Fuel cooling valve, Valve Turbocharger air recirculation, Power steering control unit, Exhaust gas recirculation cooler switching valve, Boost pressure control solenoid valve, Boost pressure positioner
10 / 5 / 7,5
5
Fuel metering valve, Fuel pressure control valve, Exhaust cam actuator A and B for cylinders 1-4, Camshaft control valve 1, Injector (cylinders 1-4),. Engine Component Power Relay, High Voltage Battery Coolant Pump and High Temperature Coolant Pump, Transmission Coolant Valve
10
6
Brake light switch
5 / 7,5
7
Circulation Pump, Fuel Metering Valve, Fuel Pressure Regulating Valve, Oil Pressure Control Valve, Radiator Blind Control Engine, Cylinder Head Coolant Valve, Boost Pressure Positioner, Auxiliary Heating Pump, Transmission Oil Cooling Pump, Coolant Switching Valves 2 and 1, Low temperature circuit coolant pump, Coolant shut-off valve, EGR coolant switch valve, Charge air cooling pump, Transmission coolant valve
10 / 15
8
Lambda probe heater, Lambda probe 1 before catalytic converter, Lambda probe heater 1 after catalyst, Lambda probe 1 after catalyst, NOx sender
10 / 15
9
Crankcase ventilation heating element, Ignition coils 1-4 with output stage, Automatic glow plug period control unit, Charge air cooling pump, Mass air flow meter, Exhaust camshaft control valve 1, Activated carbon filter solenoid valve 1, Camshaft control valve 1
Heated windshield (front battery models only), Power brakes
30 / 5
35
Air Conditioning Relay, Wiper Motor Control Module
7,5 / 30
36
Empty
-
37
Additional heater control unit
20
38
Empty
-
In the passenger compartment
Right Hand Drive: Located behind the accessory storage box on the passenger side.
Left-hand drive: located on the driver's side behind the storage box for small items.
General view of the interior fuse box of the Volkswagen Passat B8.
Diagram
№
Description
Current, A
R1
Reductant dosing system relay
R2
Magnetic clutch relay
R3
Empty
R4
Relay for supplying voltage to terminal 15
R5
Heated rear window relay
R6
Cigarette lighter socket relay (charging)
F1
Reductant heater control unit
30
F2
Steering column electronics control unit
10
F3
Empty
-
F4
Sound signal
7,5
F5
Data bus diagnostic interface
5 / 7,5
F6
Anti-theft alarm sensor, selector lever
5 / 7,5
F7
Analogue clock, Rear window defroster relay, Magnetic clutch relay, Rear air conditioning control and display unit, Tire pressure monitoring control unit, Heater and air conditioning controls, Additional coolant heater remote control receiver, Selector lever
10
F8
Rain and light sensor, Security alarm sensor, Rotary light switch, Front interior light, Rear door contour lights, Background lighting lamps on the right and left side of the instrument panel, Front door contour lamps, Electromechanical parking brake button, Diagnostic connector, Adaptive control unit lighting and headlight range control
10 / 7,5
F9
Steering column electronics control unit
1 / 5 / 7,5
F10
CD player, Front information panel and control unit display, Head-up display control unit, TV tuner
7,5 / 10
F11
Front left headlight, Front left seat belt pretensioner control unit, Onboard power supply control unit
25 / 40
F12
Information electronics control unit 1
5 / 7,5 / 20
F13
Front left seat belt tensioner control unit, electronic suspension shock absorber control
15 / 25
F14
Supply air fan control unit
30 / 40
F15
Electronic steering column lock control unit
10
F16
Mobile phone storage compartment with interface, Two-way signal booster for mobile phone and data services, Chip card reader, USB hub, TV tuner
7,5
F17
Telematics control unit for real-time monitoring, Instrument cluster, Emergency call module control unit and communication unit
5 / 7,5
F18
Top View Camera Control Unit, Rear Top View Camera, Rear View Camera, Trunk Lid Handle Release Button
7,5
F19
Interface for login and launch system
7,5
F20
Reductant dosing system relay
7,5 / 10
F21
All-wheel drive control unit
15
F22
Trailer detector control unit
15
F23
Sliding sunroof control unit, Front right headlight, Onboard power supply control unit
40 / 20
F24
Control unit for adjusting the sliding sunroof, Onboard power supply control unit, Front right headlight
30 / 40
F25
Rear left door control unit, rear left window lift motor
Left-hand drive: Driver's door control unit (left-hand drive models only)
Right hand drive: Front passenger door control unit
30
F26
Heated seats, Onboard power supply control unit
30
F27
On-board power supply control unit, Digital audio system control unit
40 / 30
F28
Trailer detector control unit
25 / 20
F29
Empty
-
F30
HV Service Connector, HV Battery 1
10
F31
Front left headlight, Rear cover control unit, On-board power supply control unit
40 / 30
F32
Driver assistance systems front camera / Adaptive cruise control unit / Parking assist control unit / Blind spot monitoring control unit
10 / 7,5
F33
Airbag deactivated indicator lamp on the front passenger side, Airbag control unit
7,5 / 5
F34
Switch module 2 in the center console, Electromechanical parking brake button, Interior mirror, Pedestrian warning lamp, Coolant pressure sensor, External air quality and humidity sensor, Socket relay
7,5
F35
Diagnostic connection, Headlight leveling control and instrument lighting control, Headlight leveling control unit, Front left headlight, Front right headlight, Left headlight leveling motor, Right headlight leveling motor
10 / 7,5
F36
Output module 1 for right LED headlight, front right headlight
7,5 / 5
F37
Output module 1 for left LED headlight, front left headlight
7,5 / 5
F38
Trailer detector control unit
25
F39
Left hand drive: Front passenger door control unit (left hand drive models only)
Right hand drive: Driver's door control unit
------
Rear right door control unit, rear right window lift motor
30
F40
Fuse for 12V sockets and cigarette lighter for Volkswagen Passat B8
20
F41
Front right seat belt tensioner control unit
25
F42
Central locking, On-board power supply control unit
40
F43
Digital audio control unit, On-board power supply control unit
40 / 30
F44
Trailer detector control unit
15
F45
Driver's seat lumbar support adjustment switch, Driver's seat adjustment control unit, Front left seat adjustment control unit, Massage control unit, Front left seat cushion fan 1, Front left seat back fan 1
15
F46
AC/DC converter with socket, 12V-230V.
30
F47
Rear Curtain Control Module, Rear Window Wiper Motor