The Volkswagen Jetta A4 was produced from 2000 to 2005. During this time, two fuse boxes were used in the vehicle: one in the engine compartment and one in the passenger compartment.
The fuse box in the engine compartment is located on the left side of the engine bay, near the battery. It contains fuses for the vehicle’s engine, electrical system, and other major components.
The fuse box in the passenger compartment is located under the left side of the dashboard. It contains fuses for the vehicle’s interior accessories, such as headlights, power windows, and radio.
This article provides fuse box diagrams for both the engine compartment and passenger compartment fuse boxes in the Volkswagen Jetta A4. The diagrams show the location of each fuse and relay, as well as the amperage rating of each fuse.
Table of Contents
Note: It is a good idea to keep a supply of spare fuses on hand. They are available from your authorized VOLKSWAGEN dealer.
Volkswagen Jetta A4 Fuse Box Diagram (Instrument Panel)
Fuses are arranged in one centralized unit. The unit is located under a cover at the end of the dashboard on the driver’s side.
| Fuse Number | Fuse Amp. Rating | Description |
|---|---|---|
| 1 | 10A | Heated washer nozzles, glove compartment light, memory seat |
| 2 | 10A | Turn signal system |
| 3 | 5A | Fog light relay, instrument panel dimmer switch |
| 4 | 5A | License plate light |
| 5 | 7.5A | Comfort system, cruise control, Climatronic, A/C, heated seat control modules, day/night dimming mirror, control module and control unit for multi-function steering wheel |
| 6 | 5A | Central locking system |
| 7 | 10A | Back-up lights, speedometer vehicle speed sensor |
| 8 | – | – |
| 9 | 5A | Anti-lock brakes (ABS) |
| 10 | 5A/10A | Engine control module (ECM) |
| 11 | 5A | Instrument cluster, shift lock solenoid |
| 12 | 7.5A | B+ (battery positive voltage) for Data Link Connector (DLC) |
| 13 | 10A | Brake lights |
| 14 | 10A | Interior lights, central locking system |
| 15 | 5A | Instrument cluster, automatic transmission control module (TCM) |
| 16 | 10A | A/C clutch, after-run coolant pump |
| 17 | – | – |
| 18 | 10A | High beam right |
| 19 | 10A | High beam left |
| 20 | 15A | Low beam right |
| 21 | 15A | Low beam left |
| 22 | 5A | Parking and side marker lights, right |
| 23 | 5A | Parking and side marker lights, left |
| 24 | 20A | Front wiper motor, washer pump |
| 25 | 25A | Fresh air blower, Climatronic, A/C |
| 26 | 25A | Rear window defogger |
| 27 | 15A | Rear wiper motor |
| 28 | 15A | Fuel pump, gasoline |
| 29 | 10A/15A | Engine control module (ECM) |
| 30 | 20A | Sunroof control module |
| 31 | 20A | Automatic transmission control module |
| 32 | 10A/15A | Fuel Injectors (gasoline) ECM (diesel) |
| 33 | 20A | Headlight washer system |
| 34 | 10A | Engine control elements |
| 35 | 30A | 12V power outlet (in luggage comp.) |
| 36 | 15A | Fog lights |
| 37 | 10A | Radio terminal 86S, instrument cluster |
| 38 | 15A | Central locking system (with power windows) luggage compartment light, remote fuel tank door, rear lid unlock |
| 39 | 15A | Emergency flashers |
| 40 | 20A | Dual tone horn |
| 41 | 15A | Cigarette lighter |
| 42 | 25A | Radio system |
| 43 | 10A | Engine control elements |
| 44 | 15A | Heated seats |
| Relay Number | Amp. Rating | Description |
|---|---|---|
| I | Dual horn relay | |
| II | Load reduction relay | |
| III | – | |
| IV | Fuel pump relay | |
| V, VI | Wiper/Washer intermittent relay | |
| 1 | – | |
| 2 | Rear lid remote unlock motor relay | |
| 3 | Anti-thett starter lock relay (clutch pedal switch) | |
| 4 | Fog light relay | |
| 5 | Multi-function steering wheel relay | |
| 6 | Multi-function steering wheel relay | |
| 7 | Daytime running lights (from April 1999) | |
| 8 | Daytime running lights (through March 1999) | |
| 9 | – | |
| 10 | Glow plug relay | |
| 11 | Park/Neutral position relay | |
| 12 | Power supply (terminal 30b, B+) relay | |
| 13 | – | |
| A | Power (Memory) seat circuit breaker | |
| B | – | |
| C | Power windows, central locking, heated power mirrors | |
| D | – | |
| E | – | |
| F | 15A | Central locking, anti-theft warning |
| G | 15A | Central locking, anti-theft warning |
Engine Compartment Fuse Box
| Fuse Number | Fuse Amp. Rating | Description |
|---|---|---|
| S162 | 50A | Secondary air injection relays or coolant pre-heating relays |
| S163 | 50A | Fuel pump relay or glow plug relay |
| S164 | 40A | Coolant fan and control module |
| S176 | 110A | Interior relay panel |
| S177 | 110A/150A | Generator |
| S178 | 30A | ABS-hydraulic pump |
| S179 | 30A | ABS |
| S180 | 30A | Coolant fan |
Fuses Color codes
| Color | Fuses Amp |
| Light brown | 5 amp |
| Brown | 7 .5 amp |
| Red | 10 amp |
| Light Blue | 15 amp |
| Yellow | 20 amp |
| Transparent (white) | 25 amp |
| Light green | 30 amp |
Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.