Table of Contents
This article provides a detailed overview of the fuse diagrams for 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 | 5 / 10 / 7,5 / 20 |
| 10 | Fuel pump control unit | 10 / 15 / 20 |
| 11 | Auxiliary air heating element | 40 |
| 12 | Auxiliary air heating element | 40 |
| 13 | Brake booster, Dual clutch transmission, Dual clutch transmission mechatronics, Auxiliary hydraulic pump 1 for transmission oil | 15 / 30 |
| 14 | Heated windshield relay | 30 / 40 |
| 15 | Horn relay | 15 |
| 16 | Charger 1 for high-voltage battery, Power relay for engine components, Power and control electronics for electric drive | 20 / 10 |
| 17 | Main relay, Heated windshield relay, ABS control unit, Engine control unit, Voltage supply relay to terminal 30 | 7,5 |
| 18 | Data bus diagnostic interface, Battery charge monitoring control unit | 7,5 /5 |
| 19 | Windshield wiper motor control unit | 30 |
| 20 | Sound signal | 10 |
| 21 | Dual Clutch Transmission, Heated Windshield Relay 2, Auxiliary Hydraulic Pump 1 for Transmission Oil, Dual Clutch Transmission Mechatronic | 15 / 30 |
| 22 | The engine control unit | 7,5 / 5 |
| 23 | Starter | 30 |
| 24 | Brake booster, Auxiliary air heating element | 40 |
| 25 | Empty | - |
| 26 | Empty | - |
| 27 | Empty | - |
| 28 | Empty | - |
| 29 | Empty | - |
| 30 | Empty | - |
| 31 | Empty | - |
| 32 | Heated windshield (rear battery models only) | 30 |
| 33 | Dual clutch transmission, Mechatronic dual clutch transmission, Brake pressure battery | 30 / 15 |
| 34 | 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 | 7,5 / 15 |
| F48 | Engine sound generator control unit | 7,5 |
| F49 | Starter Relay 1, Starter Relay 2, Clutch Position Sensor, HV Battery 1 | 7,5 / 5 |
| F50 | Rear cover control unit | 40 |
| F51 | Rear air conditioning control and display unit | 25 |
| F52 | Electronically controlled damping control unit | 15 |
| F53 | Heated rear window relay | 30 |
