Volkswagen Jetta 7 generation was produced in 2019, 2020, 2021, 2020, 2023 with the designation A7. During this time, the model has been updated. In this article, we will present a description of the fuses and relays of the Volkswagen Jetta 7 with block diagrams, their locations and photo examples of execution. We will note the fuse responsible for the cigarette lighter.

The purpose of fuses and relays may differ from the one presented and depends on the year of manufacture, equipment and country of delivery. In case of difficulties, contact your nearest dealer.
Cabin block
It is located at the bottom of the instrument panel on the driver’s side. To access it, you must remove the protective cover.



Description
| F1 | – |
| F2 | 10A Electric power steering |
| F3 | – |
| F4 | 10A On-board network control unit, Anti-theft system (7.5A), Infotainment control panel |
| F5 | 7.5A Data bus on board diagnostic interface |
| F6 | 7.5A Selector (switch) |
| F7 | 10A Heating and air conditioning controls, Heater control module, Climatronic control unit, Air conditioning control module, Automatic transmission selector lever, Auxiliary engine coolant heater radiator, Rear window heating relay, Frequency receiver |
| F8 | 7.5A Rotary light switch, Electromechanical parking brake button, Humidity, rain and light sensor, Diagnostic connection |
| F9 | 7.5A Electric power steering, Ignition / starter (switch) |
| F10 | 7.5A Display control |
| F11 | 40A Electronic control module, exterior lighting on the left |
| F12 | 20A Information Electronics Control Module, Infotainment System Components |
| F13 | – |
| F14 | 40A Supply air fan control module |
| F15 | 10A Steering column lock electronic control unit |
| F16 | 7.5A 2-band mobile signal booster (phone), Antenna amplifier, Voltage converter for USB charging module |
| F17 | 7.5A Instrument cluster control module |
| F18 | 7.5A Rear view camera, Rear cover unlock switch |
| F19 | 7.5A Access/launch system interface |
| F20 | 15A Vacuum pump relay |
| F21 | 10A Windshield heating relay |
| F22 | – |
| F23 | 20A Sunroof control module |
| F24 | 40A Electronic control module, exterior lighting right |
| F25 | 30A Driver and passenger door control module |
| F26 | 30A On-board electrical system control unit, 30A Heated front seat |
| F27 | 30A Digital audio system control module, Interior lighting |
| F28 | – |
| F29 | 5A Tire pressure monitoring |
| F30 | 10A Remote Start Relay |
| F31 | – |
| F32 | 10A Front camera driver assistance system, Remote control control module, Parking assist control module, Parallel parking control module |
| F33 | 7.5A Airbag control module |
| F34 | 7.5A Light switch, Interior rearview mirror, Tire pressure monitoring indicator button, Reverse light switch, Air quality sensor, Electromechanical parking brake button |
| F35 | 10A Diagnostic connector, Automatic dimming of the interior rear-view mirror, Headlight range and main beam adjustment, Headlight leveling motor |
| F36 | – |
| F37 | – |
| F38 | – |
| F39 | 30A Front passenger door control module, rear right window motor, driver door control module, rear left window regulator motor |
| F40 | 20A Cigarette lighter, 12 V socket |
| F41 | – |
| F42 | 40A On-board network control unit, Windshield washer, Central locking |
| F43 | 30A On-board network control unit |
| F44 | – |
| F45 | 15A Driver and passenger seat adjustment |
| F46 | – |
| F47 | 15A Rear window wiper motor |
| F48 | – |
| F49 | 5A Clutch pedal position sensor, starter relay |
| F50 | – |
| F51 | 25A Rear seat heating module |
| F52 | 15A Electrical damping circuit module |
| F53 | 30A Heated rear window |
Fuse number 40 at 20A is responsible for the cigarette lighter.
- R1 Reductant dosing system relay -J963-
- R2 –
- R3 –
- R4 Power supply relay terminal 15 -J329-
- R5 Rear window heating relay -J9-
- R6 Socket relay -J807-
Automatic fuses can be used in the power supply circuits of electric windows and electric seat drives, which, for example, are automatically switched on again when the cause of the overload (for example, frosting of the windows) is eliminated.
Block under the hood
It is located in the left part of the engine compartment, next to the battery and covered by a protective cover.



Appointment
| F1 | 40A ABS control unit |
| F2 | 40A ABS control unit |
| F3 | 15A Engine Control Module |
| F4 | 5A Oil level temperature sensor, Oil pressure control valve, Thermal power relay, Cylinder intake camshaft regulator, Ethanol concentration sensor |
| F5 | 10A Fuel pressure and metering valve |
| F6 | 5A Brake light switch |
| F7 | 7.5A Fuel pressure regulator valve, Cooling circuit solenoid valve, Charge air cooling pump 10A Heater support pump |
| F8 | 10A Oxygen sensor (lambda probe) |
| F9 | 5A Ignition coil 20A Pre-ignition heating element |
| F10 | 15/20A Fuel Pump Control Module |
| F11 | 40A Parking heater heating element |
| F12 | 40A Parking heater heating element |
| F13 | 30A Gearbox (Mechatronic unit DSG) |
| F14 | 40A Heated windshield |
| F15 | 15A Audible signal |
| F16 | 20A Power supply relay for electronic engine components 7.5A Gas shut-off valve relay |
| F17 | 7.5A Motronic engine control unit, power relay, ABS |
| F18 | 5A Battery Control Module, Data Bus Onboard Diagnostic Interface |
| F19 | 30A Wiper motor control module |
| F20 | 20A Anti-theft system, alarm |
| F21 | – |
| F22 | 5A Engine Control Module |
| F23 | 30A Starter |
| F24 | 40A Parking heater heating element |
| F25 | – |
| F26 | – |
| F27 | – |
| F28 | – |
| F29 | – |
| F30 | – |
| F31 | 15A Brake system vacuum pump |
| F32 | – |
| F33 | – |
| F34 | 15A Inter-wheel differential lock control unit |
| F35 | 7.5A Air conditioning relay |
| F36 | – |
| F37 | 20A Parking heater control module |
| F38 | – |
- R1 Starter relay 1-J906-
- R2 Starter relay 2 -J907-
- R3 Horn relay -J413-
- R4 High thermal power relay -J360-
- R5 Main relay -J271- (petrol) / Terminal 30 power supply relay -J317- (diesel)
- R6 Glow plug automatic control unit -J179- (petrol)
- R7 Low thermal power relay -J359-(diesel)
- R8 Engine component power supply relay J757 (2.0 l petrol engine)
- R9 Windscreen heating relay -J47-
- R10 Windscreen heating relay 2 -J611-