Volkswagen Jetta (A4; 2000 – 2005) – fuse and relay box diagram

Year of production: 2000, 2001, 2002, 2003, 2004, 2005

 

This article covers the fourth-generation Volkswagen Jetta (A4, Typ 1J), manufactured from 1999 to 2005. It includes fuse box diagrams for the 2000, 2001, 2002, 2003, 2004, and 2005 models, provides details on the locations of the fuse panels within the vehicle, and explains the function of each fuse (fuse layout) and relay.

 

Passenger compartment fuse box

Fuse Box Location

The fuse panel is located behind an access panel on left edge of the instrument panel.

 

Fuse Box Diagram

 

Assignment of the fuses in the instrument panel

№	Amps	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

Relays

Relay Box Location

The relay panel is located under the left side of the instrument panel.

 

Fuse Box Diagram

 

Assignment of the fuses in the relays panel

№	Amps	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 Box Location

The main fuse box located on top of the battery in the engine compartment. It contains special fuses for high current applications and prevents the main wiring harness in the event of a short circuit.

 

Fuse Box Diagram

 

Assignment of the fuses in the engine compartment

№	Amps	Description
S162	50A	Secondary air injection relay 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

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.