Fuses and relays Volkswagen Passat B7, 2010 - 2015

Volkswagen Passat B7 -  represents the 7th generation of the passat series. But at the same time, this is not a completely new model, in many ways it represents a deep restyling of the previous generation b6 . Even their interior is very similar. Released in 2010, 2011, 2012, 2013, 2014 and 2015. In our article you will find a description of fuses and relays Volkswagen Passat B7 with photographs and block diagrams in which they are located. Let's highlight the fuse responsible for the cigarette lighter. We will also show the location of all electronic control units.

The purpose of fuses and relays, as well as their number may differ from the one presented and depends on the configuration of your car and its year of manufacture.

Location of fuse and relay boxes


Appointment
1 - Passenger side instrument panel fuse box
2 - Block next to the battery
3 - Block behind the luggage compartment trim
4 - Driver's side instrument panel fuse box
5 - Relay blocks
6 - Fuse and relay box under the hood
7 - Main fuse box

In the passenger compartment

Driver side fuse box


It is located in the left end of the instrument panel, behind the protective cover.

Diagram
Amps & Description
1 10A Rear window blinds, High pressure sensor, Air pollution sensor, Oil level and temperature sensor, Supply fan relay
2 5A ASR and ESP off button, AUTO HOLD button, ABS unit, Electromechanical parking brake control unit
3 10A Power supply relay, Crankcase ventilation heating resistor, Gas supply valve
4 10A Electronic damping control unit, Diagnostic connector, Start-stop button, Adaptive cruise control unit, Parking aid control unit, Trailer detection control unit, Park assist control unit, Front camera for driver assistance systems
5 10A Dimmer for switches and instrument cluster illumination, Headlight range control, Left headlight control unit
6 10A All-wheel drive control unit
7 5A Instrument Cluster Control Unit, Data Bus Diagnostic Interface
8 10A Right headlight control unit, right headlight range control actuator
9 10A Airbag control unit, Seat occupied recognition control unit, Front passenger airbag deactivation warning lamp
10 10A Tiptronic switch, Air mass meter, Fuel pump fuse VW Passat B7, Motronic power relay, Engine control unit, Starter relay
11 5A Emergency data logger key, Mirror with taximeter, Tachograph
12 10A Driver's door control unit, Front passenger door control unit, Comfort unit
13 10A Light switch, diagnostic connector, selector, ABS control unit
14 10A Alarm Siren
15 10A Rain and light sensor, Heated rear window relay, Heated windscreen relay, Climatronic control unit, Air conditioning control unit, Rear view camera control unit, Terminal and engine start control unit
16 10A Electronic ignition lock, Electronic steering column lock control unit, Terminal activation and engine start control unit
17 15A Driver's door control unit, Driver's side rear door control unit
18 3A Onboard supply control unit, Voltage stabilizer, Engine control unit, Power supply relay 2
19 7.5A Adaptive cruise control control unit, Parking aid control unit, Lane departure warning control unit, Park assist control unit
20 5A Garage door opener control panel
21 10A Rear curtain control unit
22 20A Electromechanical parking brake control unit
23 15A Trailer recognition control unit
24 20A Electromechanical parking brake control unit
25 20A Trailer recognition control unit
26 20A Onboard supply control unit
27 15 / 20A Fuel pump relay
28 30A Rear door control unit, Convenience system central control unit
29 20A Rear seat heating control unit
30 20A Sliding sunroof control unit
31 30A Inverter with socket, 12V - 230V
32 30A Onboard supply control unit (heated rear window)
33 30A Headlight washer relay, Headlight washer pump
34 25A Front seat heating control unit
35 15A Tailgate control unit, Driver seat lumbar adjustment switch
36 15A Switch for adjusting the lumbar support of the seat, Button for adjusting the angle of the seat cushion, Button for adjusting the position of the backrest, Trailer power relay
37 20 / 30A Trailer detector control unit, Luggage compartment lid control unit 2
38 40A Supply fan relay, Supply fan control unit, Climatronic
39 5 / 15A Multifunction switch (only for vehicles with 6-speed automatic transmission), Automatic transmission control unit, Reversing light switch, DSG gearbox mechatronic unit
40 20A Second battery charging relay, Windscreen washer pump, Rear window wiper motor
41 20A Cigarette lighter
42 15A Socket 12V
43 20A Additional heater control unit (only with a second battery)
44 30A Driver and passenger door control unit
45 20А Relay for operation in the autonomous heater mode (only in the presence of a second battery)
46 Not used
47 10A Telephone transceiver (only vehicles with start-stop system)
48 5A Control unit in the instrument cluster (only vehicles with start-stop system)
49 Not used

The fuse number 41, 20A, is responsible for the cigarette lighter. And for the headlight washers - 33 to 30A.

Passenger side fuse box

Located in the right end of the dashboard, just like the left, it is covered with a protective cover.

Diagram
Amps & Description
1 15 / 30A Tailgate control unit, Trailer detection control unit
2 15 / 30A Tailgate control unit 2, Trailer detection control unit
3 10 / 30A Sunroof blind control unit, Trailer detection control unit
4 15A BU for electronic control of damping
5 Not used
6 Not used
7 Not used
8 Not used
9 Not used
10 Not used
11 Not used
12 Not used
13 Special vehicles
14 Special vehicles
15 Special vehicles
16 Charger for portable radio or flashlight
17 Special vehicles
18 Special vehicles
19 Special vehicles
20 Special vehicles
21 Special vehicles
22 Special vehicles
23 Special vehicles
24 Special vehicles

Relay blocks

They are located under the dashboard, on the driver's side, behind the trim.

Photo - example of location

Diagram
Upper box
1 Supply fan relay (Climatic with auxiliary heater)
2 Relay for auxiliary heater operation (Climatic with auxiliary heater)
3 Relay for auxiliary heater operation (Diesel engine with auxiliary heater)
4 Not used
5 Coolant circulation relay after off Engine (1.8L / 2.0L TFSI only), Power Relay
6 Relay for power supply terminal 50 (not for vehicles with start-stop system)
7 Power supply relay 2 (not for vehicles with start-stop system)
8 Power supply relay 2 (not for vehicles with start-stop system)
A and B - Thermal fuse for adjusting the position of the driver's seat
Lower box
1 Heated rear window relay (645)
2 Terminal 15 power supply relay (645)
3 Dual tone horn relay (646), Headlamp cleaning relay (646)
4 Trailer power relay (from May 2012)
5 Relay for unloading contact X (644)

Please note that other relay elements can also be located separately, for example, the Relay for charging the second battery.

Under the hood


The fuse and relay box is located on the left side of the engine compartment under the protective cover and consists of 2 sections: the mounting block and the high power main fuse section. Not far from it is the relay communication unit.

Photo & Diagram (Main Box - Type 1)
Amps & Description
1 15A DSG gearbox mechatronic unit
2 30A ABS control unit
3 20A Horn, onboard supply control unit
4 20A Trailer recognition control unit
5 5A Control unit for battery monitoring, Onboard supply control unit
6 5A Automatic transmission control unit, 15A DSG mechatronic unit
7 15A Control unit with display for TV and radio navigation system, Head unit, Control unit with display for radio navigation system, 30A Voltage stabilizer
8 30A DSG gearbox mechatronic unit
9 5A Steering column control unit
10 20A Fuel pump relay (only with diesel engines), Glow plug control unit, Ignition coils with output stage (cylinders 1 - 4)
11 5A Control unit in the instrument cluster (only vehicles with start-stop system)
12 5A Control unit for control electronics of a mobile phone, Antenna, TV tuner, Digital satellite.
13 10A Power relay Motronic, Power relay cl. 30, Engine control unit
14 25 / 30A Engine control unit
15 5 / 10A Data bus diagnostic interface
16 15A Coolant circulation relay after off. engine, 10A Exhaust gas recirculation valve, Solenoid valve for boost pressure control, Lambda probe heating element
17 40A Low power heating relay, Coolant circulation pump, Shut-off and safety valve for 1 gas cylinder
18 10/15 / 30A Fuel quality sensor, High pressure valve for gas operation
19 30A Amplifier
20 5A Additional fuel pump relay, Radiator fan control unit, Glow plug control unit, 10A Clutch pedal position sensor, Variable valve timing valve 1, 15A Fuel pressure regulator
21 20A Additional heater control unit
22 30A Wiper motor control unit
23 5A Magnetic field sensor for compass, Glow plug control unit, 10A Electronically controlled engine cooling thermostat, Radiator fan control unit, Air / intake flap motor, Heating element lambda probe, Timing and manifold valve
24 10 / 15A Nitrogen oxide emission sensor control unit, Lambda probe heater
25 40A Onboard supply control unit, Dipped beam, High beam, Dimensions
26 40A Onboard supply control unit, Dipped beam, High beam, Dimensions
27 60A Heated windshield element
28 40 / 50A Secondary air pump motor, Glow plug control unit
29 50A Control unit for onboard fuse supply, Contact relief relay X
30 50A Onboard fuse network control unit
Photo & Diagram (Main Box - Type 2)
Amps & Description
1 5 / 15A Automatic gearbox control unit, DSG mechatronic unit
2 30A ABS control unit
3 20A Convenience system central control unit, Trailer recognition control unit
4 5A Onboard supply control unit
5 20A Buzzer
6 20A Ignition coils with output stages
7 15A Fuel pressure regulator, 5A Clutch pedal position sensor
8 10A Radiator fan control unit, Timing valve, Ejection pump valve, Intake manifold flap valve
9 5A Circulation pump relay
10 10A Power relay 2 Motronic, lambda probe heating element
11 25 / 30A Engine control unit
12 Not used
13 Not used
14 Not used
15 10A Circulation pump
16 5A Steering column control unit
17 5A Instrument cluster control unit
18 30A Amplifier, Control unit for special vehicles
19 15 / 20A Head unit, Control unit with display for radio navigation system
20 20A Mobile phone, TV, digital satellite
21 10A TV Tuner, Digital Satellite Radio Tuner
22 7.5A Multimedia system control unit
23 10A Radiator fan control unit, 5A Magnetic field sensor for compass
24 5 / 10A Data bus diagnostic interface
25 Not used
26 10A Engine control unit, Motronic power relay
27 Not used
28 Not used
29 Not used
30 20A Additional heater control unit
31 30A Wiper motor control unit
32 10A boost pressure valve
33 15A Fuel pressure regulator, Lambda probe heating element
34 Not used
35 20A Relay for auxiliary heater operation
36 Not used
37 Not used
38 Not used
39 Not used
40 Not used
41 Not used
42 Not used
43 Not used
44 10A Fuel system diagnostic pump
45 10A Lambda Sensor
46 10A Heating element for lambda probe 1 after catalyst
47 40A Onboard supply control unit, dipped headlights, side lights
48 40A Onboard supply control unit, dipped headlights, side lights
49 Onboard fuse supply control unit
50 Not used
51 60A High power heating relay
52 60A Heated windshield element
53 50A Onboard supply control unit, left fuse box
54 50A E / motor for additional air supply, Glow plug relay
A1 - Relay for gas shut-off valves
A2 - Relay for pumping coolant after off. engine
A3 - Reserve
A4 - Main relay

Power box

It consists of high power fuses in the form of fusible links.

Diagram
Type 1
1 150 / 180A - Generator
2 80A Electric motor for electric power steering
3 50 / 80A Radiator fan control unit
4 80 / 100A Thermal fuse 1 seat adjustment, Fuse box left / right
5 80A Right Fuse Box (up to April 2008), Driver's Seat Adjustment Thermal Fuse 1
6 80 / 100A Fuse box left / right
7 40A ABS control unit
Type 2
1 150A - Generator
2 80A Electric motor for electric power steering
3 50 / 80A Radiator fan control unit
4 60A Thermal Fuse 1 Seat Adjustment, Left / Right Fuse Box
5 60 / 80A Thermal fuse 1 for seat adjustment, Fuse box left / right
6 80 / 100A Fuse box left / right
7 60A Second battery charging cable, 100A - heating element of an additional air heater, High power heating relay
8 40A ABS control unit
Relay Box Diagram
Description
1 Starter relay 1 (643) - only for vehicles with start-stop system
2 Glow plug control unit (457)
3 Not used
4 Low power relay (53)
5 High power heating relay (100)
6 Starter relay 2 (489) - only for vehicles with start-stop system

A separate heated windscreen relay may be located in the plenum chamber next to the engine control unit.

Luggage compartment box

Some models with a battery installed in the luggage compartment have additional protective elements in the form of fuses and relays.


SF1 - 30A Fuse box left / right
SF2 - 80A Fuses in the switch box
SF3 - 125A Power supply of the switching unit
SF4  - 5A Onboard supply control unit


In the left part of the luggage compartment behind the side lining, several relay elements can be located: 70A - Limousine, 60A - Variant

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