Table of Contents
The fifth-generation VW Golf was produced from 2003 through 2009, primarily as a hatchback, with both petrol and diesel engines. This manual provides detailed descriptions, wiring diagrams, and photographs for the Volkswagen Golf 5 (chassis code 1K; PQ35 platform) fuse boxes and relay panels, as well as the locations of all electronic control units (ECUs). The fuse for the cigarette lighter is highlighted in bold. This information also applies to the fifth-generation VW Jetta, as both models share a similar electrical architecture.
General Layout
Location diagram of electronic control units (ECUs).
|
|
| No. | Control Unit / Module |
| 1 | Air conditioning control module |
| 2 | Blower motor control module |
| 3 | Driver side impact sensor |
| 4 | Rear left side impact sensor |
| 5 | Passenger side impact sensor |
| 6 | Rear right side impact sensor |
| 7 | Vehicle tilt sensor (anti-theft alarm) |
| 8 | Battery |
| 9 | Data Link Connector (DLC / Diagnostic port) |
| 10 | CAN bus gateway control module |
| 11 | Driver door control module (inside door) |
| 12 | Rear left door control module |
| 13 | Passenger door control module (inside door) |
| 14 | Rear right door control module |
| 15 | Radiator fan control module (on fan assembly) |
| 16 | Engine compartment fuse/relay box 1 |
| 17 | Engine compartment fuse/relay box 2 |
| 18 | Engine compartment fuse/relay box 3 (under fuse/relay box 1) |
| 19 | Instrument panel fuse/relay box 1 |
| 20 | Instrument panel fuse/relay box 2 |
| 21 | Instrument panel fuse/relay box 3 |
| 22 | Headlight range control module (models with Xenon headlights) |
| 23 | Blower motor resistor |
| 24 | Horn 1 |
| 25 | Horn 2 |
| 28 | Instrument cluster control module |
| 29 | Multifunction control module 1 (in dashboard fuse/relay box 3) – Functions: Cigarette lighter, cruise control, fog lights, hazard warning lights, headlights, heated rear window, horn, interior lighting, rear wiper/washer, reverse lights, front side marker lights, brake lights, windshield wiper/washer |
| 30 | Multifunction control module 2 – Functions: Anti-theft alarm, trunk/tailgate lock, tailgate release, central locking, power mirrors, power windows, fuel filler flap release motor, sunroof |
| 31 | NOx sensor control module (underbody) |
| 32 | Park assist control module (right side of luggage compartment) |
| 33 | Power steering control module (above steering rack) |
| 34 | Airbag control module (SRS) |
| 35 | Steering column electronics control module |
| 36 | Telephone control module (under seat, if equipped) |
| 37 | Trailer control module (left side of luggage compartment) |
| 38 | Transmission control module (TCM, behind wheel arch liner) |
| 39 | Windshield wiper control module (on intake resonator) |
Engine Compartment
Located adjacent to the battery under a protective cover. It consists of two sections: 1 – High-current fusible link plate; 2 – Main fuse and relay panel.
Fuse Box
Type 1
Layout view.
| Diagram | |
|---|---|
|
|
| No. | Rating / Description |
| 1 | Engine control module (ECM) main relay |
| 2 | Secondary air injection (SAI) pump relay |
| F1 | (30A) Windshield wipers |
| F2 | (5A) Steering column control module / (30A) DSG mechatronic unit |
| F3 | (5A) Onboard power supply control module |
| F4 | (30A) ABS control module |
| F5 | (15A) Transmission control module (TCM) |
| F6 | (5A) Instrument cluster |
| F7 | (40A) Terminal 15 power supply relay |
| F8 | (15A) Audio system / Head unit |
| F9 | (5A) Telephone control module |
| F10 | (5A / 10A) Engine control module (ECM) |
| F11 | (20A) Auxiliary heater control module |
| F12 | (5A) CAN bus gateway control module |
| F13 | (15A / 30A) Engine control module (ECM) |
| F14 | (20A) Ignition coils, engine management |
| F15 | (5A / 10A) Oxygen (Lambda) sensor, engine management |
| F16 | (30A) ABS control module, right headlight |
| F17 | (15A) Horn |
| F18 | (30A) Audio system amplifier |
| F19 | (30A) Windshield wiper/washer |
| F20 | (10A) Auxiliary coolant pump |
| F21 | (10A / 15A) Oxygen (Lambda) sensor, A/C compressor magnetic clutch, supercharger clutch |
| F22 | (5A) Clutch pedal position switch |
| F23 | (5A / 10A / 15A) Fuel pressure regulator, secondary air injection pump relay, engine management |
| F24 | (10A) EGR valve, purge solenoid valves, engine management |
| F25 | (40A) ABS hydraulic pump / control module |
| F26 | (30A) Left headlight |
| F27 | (50A) Glow plug control module |
| F28 | (40A) Ignition circuits (Terminal 15) |
| F29 | (50A) Power seat thermal circuit breaker 1 |
| F30 | (40A) Starter circuit / (50A) X-contact load relief relay |
Type 2
Layout view.
| Diagram | |
|---|---|
|
|
| No. | Rating / Description |
| 1 | Ignition circuit relay 2 |
| 2 | Starter relay |
| 3 | Fuel pump relay (1.4L BCA / 1.6L BGU) |
| 4 | Ignition circuit relay 1 |
| F1 | (30A) ABS control module |
| F2 | (30A) ABS hydraulic pump |
| F3 | (20A) Multifunction control module 2 |
| F4 | (5A) Multifunction control module 1 |
| F5 | (20A) Horn |
| F6 | (5A / 20A) Engine management system |
| F7 | (5A) Brake pedal switch, clutch pedal position sensor |
| F8 | (10A) Radiator fan control module, engine management |
| F9 | (10A) Engine management system |
| F10 | (10A) Engine management system |
| F11 | (25A) Engine management (petrol) |
| F12 | (15A) Engine management system |
| F13 | (20A) Automatic transmission control module (TCM) |
| F14 | - |
| F15 | (40A) Starter motor circuit |
| F16 | (15A) Steering column control module |
| F17 | (10A) Instrument cluster |
| F18 | - |
| F19 | (15A) Audio / Navigation system |
| F20 | (10A) Telephone module |
| F21 | - |
| F22 | - |
| F23 | (10A) Cruise control |
| F24 | (10A) CAN gateway / DLC |
| F25 | - |
| F26 | (5A) Engine management (diesel) |
| F27 | (10A) Crankcase ventilation heating element |
| F28 | (20A) Automatic transmission control module |
| F29 | (20A) Engine management system |
| F30 | (20A) Climate control (HVAC) |
| F31 | (25A) Windshield wipers |
| F32 | (10A) Engine management system |
| F33 | (15A) Auxiliary fuel pump |
| F34 | - |
| F35 | - |
| F36 | - |
| F37 | - |
| F38 | (10A) Headlight range control module |
| F39 | (5A) Oil temperature sensor, instrument cluster |
| F40 | (20A) Dashboard fuse panel 1 (F1–F11 / F29–F31) |
| F41 | - |
| F42 | (5A) Engine management (petrol) |
| F43 | - |
| F44 | - |
| F45 | - |
| F46 | - |
| F47 | (40A) Multifunction control module 1 |
| F48 | (40A) Multifunction control module 1 |
| F49 | (50A) Multifunction control module 1 |
| F50 | (40A) Audio amplifier |
| F51 | (50A) Glow plug control module |
| F52 | (50A) Multifunction control module 1 |
| F53 | (50A) Dashboard fuse panel 1 (F32–F37), Dashboard fuse panel 2 (F4) |
| F54 | - |
High-Current Fusible Links
Layout and Ratings.
| No. | Rating / Description |
| Type 1 | |
|
|
| 1 | 150A / 200A – Alternator |
| 2 | 80A – Power steering control module |
| 3 | 50A – Radiator fan control module |
| 4 | 40A – Low-heat output relay / Auxiliary equipment |
| 5 | 100A – Passenger compartment fuse panel |
| 6 | 80A – Passenger compartment fuse panel (100A optional) |
| 7 | 30A / 40A / 50A – Trailer towing package and auxiliary equipment |
| Type 2 | |
|
|
| 1 | 150A / 200A – Alternator |
| 2 | 80A – Power steering control module |
| 3 | 50A – Radiator fan control module |
| 4 | 40A – Passenger compartment fuse panel |
| 5 | 100A – Passenger compartment fuse panel (80A auxiliary equipment) |
| 6 | 80A – Passenger compartment fuse panel (100A optional) |
| 7 | 50A – Spare / Reserve |
On certain models, additional relays (such as the glow plug control relay and secondary air pump relay) may be located outside this box.
Passenger Compartment
Instrument Panel Fuse Box
Located at the end of the dashboard on the driver's side, behind the protective end cover.
| Diagram | |
|---|---|
|
|
| No. | Rating / Description |
| F1 | (10A) Data Link Connector (DLC), Engine Control Module (ECM), auxiliary heater relay |
| F2 | (5A) ABS / ESP system |
| F3 | (10A) Power steering, (5A) Airbag control module (SRS) |
| F4 | (5A) Heated seats, HVAC system, climate control module, oil level/temperature sensor, reverse lights |
| F5 | (5A) Brake light switch, clutch pedal switch, adaptive front-lighting (AFS) / headlight leveling control module (right) |
| F6 | (5A) CAN bus gateway, engine management, instrument cluster, adaptive front-lighting (AFS) / headlight leveling control module (left) |
| F7 | (5A) Headlight leveling control module, auto-dimming interior mirror |
| F8 | (5A) Auto-dimming interior mirror / (10A) Trailer control module |
| F9 | (5A) All-wheel drive (4MOTION) control module, navigation system |
| F10 | (5A) Telephone control module, occupant detection sensor |
| F11 | (5A) Trailer control module |
| F12 | (10A) Driver door control module, passenger door control module, central locking system |
| F13 | (10A) Diagnostic socket (DLC), headlight switch, rain/light sensor |
| F14 | (5A) Brake light switch, automatic transmission control module, ABS control module |
| F15 | (7.5A) Multifunction control module (interior lighting) |
| F16 | (10A) HVAC control panel, antenna selection module |
| F17 | (5A) Audio system, rain sensor, anti-theft alarm siren |
| F18 | (5A) Park assist control module, gear selector lever sensor |
| F19 | (5A) Emergency data recorder (event data recorder) |
| F20 | (5A) ABS control module |
| F21 | (5A) Top speed limiter control module (special/fleet vehicles) |
| F22 | (40A) Fresh air blower motor |
| F23 | (30A) Power windows, door control module |
| F24 | (25A) Cigarette lighter (front and rear), central convenience control module |
| F25 | (25A) Multifunction control module (heated rear window, A/C control module, HVAC mode selector switch) |
| F26 | (20A) 12V auxiliary power socket / (25A) Rear door control module |
| F27 | (15A) Engine management (fuel pump) |
| F28 | (25A) 230V power inverter (special/utility vehicles) |
| F29 | (10A) Engine management system |
| F30 | (5A) Airbag module / (10A) Fuel injectors / (20A) Automatic transmission control module |
| F31 | (5A) Reverse lights / (20A) Brake vacuum pump |
| F32 | (15A) Power windows |
| F33 | (25A) Sunroof |
| F34 | (15A) Power seat lumbar support / adjustment |
| F35 | (5A) Anti-theft alarm system |
| F36 | (20A) Headlight washer system |
| F37 | (30A) Heated seats control module |
| F38 | (20A) Horn relay, anti-theft alarm system, central convenience control module |
| F39 | - |
| F40 | (40A) Blower motor (HVAC) |
| F41 | (15A / 20A) Rear window wiper/washer |
| F42 | (15A / 20A) Windshield washer, cigarette lighter |
| F43 | (15A) Trailer control module |
| F44 | (20A) Trailer control module |
| F45 | (15A) Trailer control module |
| F46 | (5A) Climate control panel, heated windshield washer nozzles |
| F47 | (5A) Climate control (HVAC) module |
| F48 | (7.5A) Power seat memory, power steering column, charging cradle (special vehicles) |
| F49 | (7.5A) Light switch |
| Depending on vehicle trim and model year, fuse 24 or 42 is used for the cigarette lighter / 12V socket. | |
Relay Panels
Located under the dashboard on the driver's side and consists of two panels: main and auxiliary.
| Diagram | |
|---|---|
| No. | Description |
| Main Relay Panel | |
|
|
| 1 | - |
| 2 | Heated exterior mirror relay |
| 3 | - |
| 4 | Multifunction control module power relay |
| 5 | Heated rear window relay |
| 6 | Dual-tone horn relay |
| 7 | Windshield washer pump relay 1 |
| 8 | Windshield washer pump relay 2 |
| 9 | Terminal 15 power supply relay (ignition circuits) |
| Auxiliary Relay Panel | |
|
|
| 1 | Headlight washer system relay |
| 2 | Fuel electric booster pump relay (diesel) |
| 3 | Starter relay |
| 4 | Headlight washer system relay |
| 5a | Fuel system primer relay |
| 5b | Auxiliary heater relay |
| A | 30A Thermal circuit breaker 1 (driver seat adjustment) |
| B | 30A Thermal circuit breaker 2 (driver seat adjustment) |