The fourth-generation Golf (Mk4) belongs to the compact car segment. Produced from 1997 through 2004, it was available in hatchback, estate (station wagon), and convertible body styles. Below is a detailed overview of the fuse box and relay panel diagrams for the VW Golf Mk4 (chassis code 1J; A4 / PQ34 platform), along with reference photos. The fuse for the “cigarette lighter” is highlighted in bold.
Note: Discrepancies may exist depending on regional equipment specifications and model year. Always cross-reference this guide with the fuse assignment diagram located on the back of your vehicle’s fuse panel cover. For Mk3 or Mk5 models, please refer to their respective technical manuals.
Passenger Compartment
Fuse Box
Located behind the access cover on the left end (driver's side) of the dashboard.
| Diagram | |
|---|---|
|
|
| No. | Rating / Circuit Description |
| F1 | 10 A – Glove box light, heated power mirrors |
| F2 | 10 A – Turn signals, hazard warning lights, headlight level control |
| F3 | 5 A – Fog light relay, instrument cluster illumination dimmer |
| F4 | 5 A – License plate lights |
| F5 | 7.5 A – Air conditioning, Engine Control Module (ECM), power mirrors, heated seats |
| F6 | 5 A – Central locking, power windows |
| F7 | 10 A – Reverse lights |
| F9 | 5 A – ABS, Electronic Stability Program (ESP), Traction Control System (TCS) |
| F10 | 15 A – Engine Control Unit (ECU) |
| F11 | 5 A – Instrument cluster |
| F12 | 7.5 A – Data Link Connector (DLC / OBD-II power supply) |
| F13 | 10 A – Brake lights |
| F14 | 10 A – Interior lighting |
| F15 | 5 A – Instrument cluster, Electronic Stability Program (ESP) |
| F18 | 10 A – Right headlight (high beam) |
| F19 | 10 A – Left headlight (high beam) |
| F20 | 15 A – Right headlight (low beam), Xenon HID headlight range control |
| F21 | 15 A – Left headlight (low beam), Xenon HID headlight |
| F22 | 5 A – Right parking light / side marker |
| F23 | 5 A – Left parking light / side marker |
| F24 | 20 A – Windshield wiper motor, windshield washer pump |
| F25 | 25 A – Blower motor, air conditioning |
| F26 | 25 A – Heated rear window |
| F27 | 15 A – Rear window wiper motor |
| F28 | 15 A – Fuel pump |
| F29 | 15 A – Engine management system, ignition circuit |
| F31 | 20 A – Automatic transmission control module |
| F32 | 10 A – Fuel injectors |
| F34 | 10 A – Engine management system |
| F35 | 30 A – 12 V power socket |
| F36 | 15 A – Fog lights |
| F37 | 10 A – Radio, convenience system, central locking, power windows |
| F38 | 15 A – Luggage compartment light, central locking, fuel filler flap release |
| F39 | 15 A – Hazard lights / Alarm system |
| F40 | 20 A – Dual-tone horn |
| F41 | 15 A – Cigarette lighter fuse |
| F42 | 15 A – Car radio / audio system |
| F43 | 10 A – Engine management system components |
| F44 | 15 A – Heated seats |
| Note: Fuse No. 41 is rated at 15 A (or 30 A on select trim specifications) and supplies the cigarette lighter circuit. | |
Relay Panel
The main relay carrier is located under the lower driver's side dashboard panel.
Reference photograph.
Relay Layout Diagram
Primary Relay Carrier (Panel R)
- I – Dual-tone horn relay (Relay 53);
- II – X-contact load reduction relay (Relay 100);
- III – Unassigned;
- IV – Fuel pump relay / Glow plug relay (Relay 409, 167, or 103);
- V – Intermittent wiper control module (Relay 603, 377, 389, or 192);
- VI – Unassigned;
- A – Power seat circuit breaker;
- B – Unassigned;
- C – Thermal circuit breaker for power windows, central locking, and heated exterior mirrors
Auxiliary Relay Carrier (Panel Z13)
- 1 – Fog light relay (Relay 53);
- 2 – Remote trunk release relay;
- 3 – Starter interlock relay;
- 4 – Unassigned;
- 5 – Unassigned;
- 6 – Radio / telephone mute relay (Relay 147);
- 7 – Electronic Cruise Control System (GRA) relay;
- 8 – Exterior lighting control relay;
- 9 – Fuel pump relay (Syncro diesel) / Taxi alarm control module;
- 10 – Taxi alarm control module;
- 11 – Starter & reverse lockout relay (Relay 175);
- 12 – Terminal 30 power supply relay;
- 13 – Radiator fan control relay (A/C models)
Fuses on Auxiliary Carrier Z13
- D – Unassigned;
- E – Rear power window circuit breaker;
- F – Anti-theft alarm indicator flasher unit;
- G – Anti-theft alarm horn
Engine Compartment
Auxiliary Relay Box
An additional relay box is mounted on the plenum chamber bulkhead in the engine compartment.
This box houses relays for the secondary air injection (SAI) pump or glow plug circuits. Note: The hazard switch on the dashboard integrates the turn signal and hazard flasher relay. The radiator fan control module is mounted on the left longitudinal frame rail below the battery tray.
Battery Fuse Box
Mounted directly on top of the battery cover.
Contains both blade fuses and high-current strip metal fusible links.
| Diagram | |
|---|---|
|
|
| No. | Rating / Circuit Description |
| S131 | 50 A – Secondary Air Injection (SAI) pump |
| S132 | 50 A – Engine management system / Glow plugs |
| S133 | 40 A / 50 A – Radiator cooling fan motor |
| S134 | 110 A – Passenger compartment electrical supply / Fuse box |
| S138 | 110 A / 150 A – Alternator terminal B+ output line |
| S162 | 30 A – ABS hydraulic pump |
| S163 | 30 A – ABS / ESP control unit |
| S164 | 30 A – Radiator cooling fan control module |