Table of Contents
The sixth-generation Volkswagen Jetta was introduced in 2010 in the United States, with European sales commencing in 2011. This model was produced in 2012, 2013, 2014, 2015, 2016, 2017, 2018, and 2019, undergoing a facelift during its production cycle. This manual provides a comprehensive breakdown of the fuse and relay boxes for the Volkswagen Jetta 6 (chassis codes 16, AJ; A6 / PQ35 platform), complete with location diagrams and photographs. The fuse responsible for the “cigarette lighter” is highlighted in bold. The locations of all electronic control units (ECUs) are also detailed below.
General Layout
Arrangement of electronic control units (ECUs).
|
|
| No. | Control Unit / Module |
| 1 | ABS control unit |
| 2 | Air conditioning control module |
| 3 | Battery |
| 4 | Diagnostic link connector (DLC) |
| 5 | Data bus diagnostic gateway |
| 6 | Driver door control module |
| 7 | Left rear door control module |
| 8 | Front passenger door control module |
| 9 | Right rear door control module |
| 10 | Engine control module (ECM) |
| 11 | Engine compartment fuse/relay box |
| 12 | Instrument panel fuse/relay box 1 |
| 13 | Instrument panel fuse/relay box 2 |
| 14 | Glow plug control module — under the engine compartment fuse/relay box |
| 15 | Headlamp range control module |
| 16 | Blower motor resistor — adjacent to the heater blower motor |
| 17 | Horn |
| 18 | Ignition switch control module (select models) — in instrument panel fuse/relay box 2 |
| 19 | Keyless entry and remote start control module |
| 20 | Multifunction control module — Functions: anti-theft system, central locking, charging system, door control units, electrical load management, exterior lighting, footwell lighting, fuel filler flap release, fuel pump, heated exterior mirrors, heated rear window, horn, immobilizer, turn signals / hazard warning lights, instrument cluster lighting, interior lighting, keyless entry and remote start, rain / light sensor, brake lights, windshield wiper/washer system |
| 21 | Parking aid control module |
| 22 | Power steering control module — on the steering rack |
| 23 | Heated seat control module — under the driver’s seat |
| 24 | Steering column electronics control unit |
| 25 | Steering column lock control unit |
| 26 | SRS / Airbag control unit |
| 27 | Trailer detection control module |
| 28 | Transmission control module (TCM) — DSG transmission |
| 29 | Transmission control module (TCM) — automatic transmission |
| 30 | Voltage stabilizer module |
Passenger Compartment
Fuse Box
Located under the dashboard. Remove the protective cover to gain access.
Example photograph.
| Diagram | |
|---|---|
|
|
| No. | Rating (A) Description — Type 1 |
| F1 | |
| F2 | (5 A) Steering column lock |
| F3 | (10 A) Instrument cluster |
| F4 | |
| F5 | |
| F6 | (10 A) Multifunction control module |
| F7 | (5 A) Fog lamp relay (AW0 only), switch and instrument cluster dimmer (AW0 only), license plate light, body control module (AW1 only) |
| F8 | (7.5 A) Windshield and headlamp washer pump switch, windshield washer pump |
| F9 | (5 A) Airbag control module (SRS) |
| F10 | (10 A) Steering column switch (right) |
| F11 | |
| F12 | |
| F13 | (5 A) Auto-dimming interior mirror, light sensor, parking aid control unit, air quality sensor, refrigerant pressure sensor, Climatronic control unit, tire pressure monitoring switch, reverse light switch, heated washer nozzles |
| F14 | (10 A) Steering column switch (left), ABS control unit, headlight switch, fuel pump control unit |
| F15 | (10 A) Switch and instrument cluster dimmer, headlamp range control, auxiliary heater relay, mass air flow (MAF) sensor, crankcase ventilation heater, left headlamp, left headlamp range control motor, right headlamp, right headlamp range control motor |
| F16 | (10 A) Engine control module (ECM) |
| F17 | |
| F18 | (15 A) Left headlamp |
| F19 | (15 A) Right headlamp |
| F20 | (10 A) Automatic transmission control unit, selector lever sensor unit, Tiptronic switch, Climatronic control unit, ignition switch |
| F21 | (15 A / 20 A) Body control module, dual-tone horn relay |
| F22 | (10 A) Ignition switch, DC/DC converter, anti-theft alarm horn, interior monitoring sensor, alarm siren relay, dual-tone horn relay |
| F23 | (10 A) Body control module, headlight switch, rain and light sensor, compass magnetic field sensor |
| F24 | (10 A) Body control module, adaptive front-lighting system (AFS) and headlamp range control unit |
| F25 | (15 A) Transmission control unit |
| F26 | (15 A) Brake booster vacuum pump |
| F27 | |
| F28 | (40 A) Coolant heater, auxiliary heater relay |
| F29 | (1 A) Multifunction control module |
| F30 | (20 A) Cigarette lighter / power outlets |
| F31 | (30 A) Headlight switch |
| F32 | (30 A) Headlight switch |
| F33 | (40 A) Blower motor switch, fresh air blower relay, air conditioning control unit |
| F34 | (15 A) Left headlamp, instrument cluster control unit |
| F35 | (10 A) Steering column control module, instrument cluster, horn switch, diagnostic gateway |
| F36 | (25 A) Multifunction control module |
| F37 | (15 A) Left headlamp |
| F38 | (15 A) Right headlamp |
| F39 | (15 A) Low beam headlamps |
| F40 | (15 A) Trailer module |
| F41 | (15 A) Trailer module |
| F42 | (20 A) Trailer module |
| F43 | (30 A) Front passenger door control module |
| F44 | (25 A) Heated rear window relay |
| F45 | (25 A) Driver door control module, front passenger door control module |
| F46 | (25 A) Left rear door control unit, right rear door control unit |
| F47 | (15 A) Fuel pump |
| F48 | (20 A) Multifunction control module |
| F49 | (40 A) Climate control blower / heater |
| F50 | (30 A) Heated seats |
| F51 | (20 A) Sunroof |
| F52 | (20 A) Horn |
| F53 | (15 A) Heated seats |
| F54 | (15 A) Rear fog lamps |
| F55 | (20 A) Headlight switch, steering column switch (left) |
| F56 | - |
| F57 | (15 A) Audio system, navigation system |
| F58 | (1 A / 30 A) Cellular phone transceiver, 12 V to 230 V power inverter |
| F59 | (30 A) Audio amplifier |
| F60 | (30 A) Auxiliary coolant heater |
| No. | Rating (A) Description — Type 2 |
| F1 | (10 A) Heated washer nozzles |
| F2 | (5 A / 7.5 A) Steering column lock |
| F3 | (10 A) Instrument cluster |
| F4 | (2 A / 10 A) Cellular phone transceiver |
| F5 | (7.5 A) Left rear fog lamp |
| F6 | (10 A) Multifunction control module, rearview camera |
| F7 | (5 A) Fog lamp relay, switch and instrument cluster dimmer, license plate light |
| F8 | (7.5 A) Windshield and headlamp washer pump switch, windshield washer pump |
| F9 | (5 A) Airbag control module (SRS), (15 A) occupant detection control module |
| F10 | (10 A) Steering column switch (right) |
| F11 | (10 A) Left headlamp (HID / gas discharge) |
| F12 | (10 A) Right headlamp (HID / gas discharge) |
| F13 | (5 A) Auto-dimming interior mirror, rain/light sensor, parking aid control unit, air quality sensor, refrigerant pressure sensor, Climatronic control unit, tire pressure monitoring switch, ASR/ESP OFF switch, reverse light switch, start-stop switch, heated washer nozzles, power mirror switch, heated mirror switch, adaptive lighting and headlamp range control unit |
| F14 | (10 A) Steering column switch (left), ABS control unit, fuel pump control unit, trailer detection control module, voltage stabilizer, 12 V to 230 V power inverter, diagnostic gateway |
| F15 | (10 A) 16-pin diagnostic link connector (DLC), switch and instrument cluster dimmer, headlamp range control, fresh air blower relay, mass air flow (MAF) sensor, crankcase ventilation heater, engine mount vibration damper control unit, left headlamp, left headlamp range control motor, right headlamp, right headlamp range control motor |
| F16 | (10 A) Auxiliary coolant pump relay, fuel pump, ignition key switch |
| F17 | (10 A) Anti-theft system and relay |
| F18 | (15 A) Left headlamp |
| F19 | (15 A) Right headlamp |
| F20 | (10 A) Ignition switch, Tiptronic switch, automatic transmission control unit, selector lever sensor unit, Climatronic control unit, auxiliary heater receiver |
| F21 | (15 A / 20 A) Body control module, dual-tone horn relay |
| F22 | (7.5 A / 20 A) Ignition switch, DC/DC converter, interior monitoring sensor, alarm siren relay, anti-theft alarm horn |
| F23 | (10 A) Body control module, headlight switch, rain and light sensor, compass sensor |
| F24 | (10 A) Adaptive front-lighting system (AFS) and headlamp range control unit |
| F25 | (15 A) Transmission control unit, selector lever assembly |
| F26 | (15 A) Brake booster vacuum pump |
| F27 | (1 A) Airbag clock spring / slip ring |
| F28 | (40 A) Auxiliary heater relay |
| F29 | (1 A) Multifunction control module, ignition switch |
| F30 | (20 A) Cigarette lighter / power outlets |
| F31 | (30 A) Headlight switch |
| F32 | (20 A) Headlight switch |
| F33 | (40 A) Blower motor switch, fresh air blower relay, air conditioning control unit |
| F34 | (15 A) Left high beam bulb, right high beam bulb, instrument cluster |
| F35 | (10 A) Steering column control module, diagnostic gateway, horn switch |
| F36 | (25 A) Multifunction control module |
| F37 | (15 A) Left headlamp, left daytime running light (DRL) |
| F38 | (15 A) Right headlamp, right daytime running light (DRL) |
| F39 | (20 A) Low beam relay |
| F40 | (15 A) Trailer module |
| F41 | (15 A) Trailer module |
| F42 | (20 A) Trailer module |
| F43 | (30 A) Front passenger door control module |
| F44 | (30 A) Heated rear window relay, rear window defroster, body control module |
| F45 | (30 A) Driver door control unit, front passenger door control unit |
| F46 | (30 A) Left rear door control unit, right rear door control unit |
| F47 | (15 A) Fuel pump |
| F48 | (20 A) Multifunction control module |
| F49 | (40 A) Fresh air blower, Climatronic control unit |
| F50 | (30 A) Heated seats |
| F51 | (20 A) Sunroof |
| F52 | (20 A) Horn |
| F53 | (15 A) Driver seat lumbar support switch |
| F54 | (15 A) Fog lamp relay |
| F55 | (20 A) Headlight switch, steering column switch (left) |
| F56 | (10 A) Electric drive and power electronics control unit |
| F57 | (15 A / 25 A) Audio system, navigation system |
| F58 | (30 A) 12 V power inverter |
| F59 | (15 A) Battery cooling fan relay |
| F60 | (30 A) Auxiliary heater control unit |
Fuse No. 30 (20 A) supplies power to the cigarette lighter.
Relay Box
Located above the fuse box.
| Diagram | |
|---|---|
| No. | Description (Type 1) |
|
|
| R1 | Voltage converter, Low E-box (AW0) |
| R2 | Fresh air blower relay |
| R3 | Auxiliary heater relay |
| R4 | Fuel pump (FP) relay, engine component power supply relay, auxiliary coolant pump relay |
| R5 | Low beam relay |
| R6 | Fresh air blower relay |
| R7 | Terminal 75 power supply relay 1 |
| R8 | Dual-tone horn relay, headlamp washer relay |
| R9 | Terminal 50 power supply relay |
| R10 | Terminal 15 power supply relay 2 |
| R11 | Heated rear window relay |
| R12 | Fuel pump relay 2, auxiliary heater relay, cold-start valve relay, fuel prime relay |
| R13 | Terminal 50 power supply relay |
| R14 | Terminal 15 power supply relay |
| R15 | Fog lamp relay |
| No. | Description (Type 2) |
|
|
| R1 | Dual-tone horn relay, headlamp washer relay |
| R2 | Terminal 50 power supply relay, starter relay 2 |
| R3 | Fuel pump relay, cold-start valve relay |
| R4 | Coolant circulation pump relay, fuel pump relay |
| R5 | Terminal 75 power supply relay 1 |
| R6 | Terminal 50 power supply relay, starter relay 1 |
| R7 | Terminal 15 power supply relay |
| R8 | Low beam relay |
| R9 | Terminal 15 power supply relay 2 |
| R10 | Terminal 75 power supply relay 1 |
| R11 | Fog lamp relay, radiator fan relay |
| R12 | Voltage converter |
Engine Compartment
Fuse Box
Located on the right side, adjacent to the battery, under a protective cover.
Example photograph.
| Diagram | |
|---|---|
|
|
| No. | Rating (A) Description |
| F1 | |
| F2 | (10 A / 15 A) Engine management, engine electronics power supply relay |
| F3 | (5 A) Radiator fan motor, heater relay |
| F4 | (5 A / 10 A / 15 A) Engine management, coolant pump, oxygen (lambda) sensor heater |
| F5 | (5 A / 10 A / 20 A) Oxygen (lambda) sensor heater, EVAP leak detection pump, mass air flow (MAF) sensor, brake vacuum pump |
| F6 | (5 A / 10 A / 15 A) EVAP leak detection pump, fuel tank shut-off valve, secondary air injection (SAI) pump relay |
| F7 | (5 A / 20 A) Engine management (ignition coils), fuel pressure regulator |
| F8 | (10 A) Engine management (throttle valve control module, wastegate actuator, clutch pressure regulator) |
| F9 | (5 A / 15 A) Glow plug control unit, fuel pump relay |
| F10 | (5 A) Vehicle speed sensor, brake light switch, brake booster relay |
| F11 | |
| F12 | (5 A / 20 A) Coolant circulation pump, ignition coil |
| F13 | (5 A) Coolant pump / (20 A) Brake booster relay |
| F14 | (5 A) Engine management main relay |
| F15 | (30 A) Voltage regulator module |
| F16 | (30 A) ABS / ESP system |
| F17 | (30 A) Transmission control unit |
| F18 | (20 A) DSG mechatronic unit |
| F19 | (10 A) Multifunction control module |
| F20 | (30 A) Windshield wiper and washer relay |
| F21 | (50 A) Secondary air injection (SAI) pump |
| F22 | (40 A) Auxiliary air heater element |
| F23 | (40 A) ABS / ESP system |
| F24 | (50 A) Trailer module |
| F25 | (50 A) Primary ignition circuits, Terminal 15 power supply relay |
| F26 | (60 A) Glow plugs / (40 A) Secondary air injection pump relay |
| F27 | (50 A / 60 A) Radiator fan motor |
| F28 | (40 A) Multifunction control module |
| F29 | (40 A) Multifunction control module |
| F30 | (50 A) Auxiliary power supply (Terminal 30) |
| F31 | (30 A) Audio amplifier |
| F32 | (40 A) Auxiliary coolant heater |
| 1 | Secondary air injection (SAI) pump relay |
| 2 | Coolant pump relay |
| 3 | Main power supply relay (Terminal 30) |
| 4 | - |
| 5 | - |
| 6 | Glow plug control relay |
High-Power Fusible Links
High-current fusible links are located on the side of the box.
Terminal & Link Assignments:
- 508 — Threaded connection (Terminal 30) on the power distribution box
- SA1 — 200 A Alternator
- SA2 — Unassigned
- SA3 — 80 A Power steering control module
- SA4 — 80 A Passenger compartment fuse panel (Terminal 30)
Horn
Which one is the fuse for hazards lights
Thanks
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John
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