Audi A4 Avant Quattro 2004 - 2004 ELECTRICAL Fuses & Circuit Breakers - A4, A4 Quattro, A4 Avant Quattro & S4

Audi A4 Avant Quattro 2004 - IDENTIFICATION ENGINE CODE

Engines are identified by a 3-letter code stamped on the engine. For engine code locations, see Fig. 1-Fig. 3 . Engine codes are also located on the vehicle data plate.

Fig. 1: Audi A4 Avant Quattro 2004 - Component Locations - Locating Engine Code (1.8L Turbo - AMB)

Fig. 2: Audi A4 Avant Quattro 2004 - Component Locations - Locating Engine Code (3.0L - AVK)

Fig. 3: Audi A4 Avant Quattro 2004 - Component Locations - Locating Engine Code (4.2L - BHF)

Audi A4 Avant Quattro 2004 - FUSES CONNECTOR STATION

NOTE:

Manufacturer does not provide specific information for fuse number, position number, amperage rating and circuits protected in left side connector station.

Connector stations are located on right and left sides of footwell below A-pillar trim. See . For fuse position in connector stations, see Fig. 4-Fig. 7 . For fuse number, position number, amperage rating and circuits protected in right side connector station, see FUSE IDENTIFICATION (CONNECTOR STATION - RIGHT) table.

Fig. 4: Audi A4 Avant Quattro 2004 - Component Locations - Locating Connector Station (Left)

Fig. 5: Audi A4 Avant Quattro 2004 - Component Locations - Locating Connector Station (Right)

Fig. 6: Audi A4 Avant Quattro 2004 - Component Locations - Identifying Connector Station Fuses (Left)

Fig. 7: Audi A4 Avant Quattro 2004 - Component Locations - Identifying Connector Station Fuses (Right)

Audi A4 Avant Quattro 2004 FUSE IDENTIFICATION (CONNECTOR STATION - RIGHT)

Position No.	Fuse No.	Amp Rating	Circuit Protected
C	N/A	N/A	Not Used
D	N/A	N/A	Not Used
E
(1)	S46	30	Power Seat
(2)	S46	10	Power Seat
F	N/A	N/A	Not Used
(1) Applies to vehicles equipped with manual seats with power lumbar. (2) Applies to vehicles equipped with power seats.

Audi A4 Avant Quattro 2004 - FUSE COLOR IDENTIFICATION

Audi A4 Avant Quattro 2004 FUSE COLOR/AMP RATING

Fuse Color	Amp Rating
Blue	15
Brown	7.5
Green	30
Light Brown	5
Red	10
Transparent (White)	25
Yellow	20

Audi A4 Avant Quattro 2004 - FUSE PANEL LOCATION

Fuse panel is located behind left side of dashboard. See Fig. 8.

Fig. 8: Audi A4 Avant Quattro 2004 - Component Locations - Locating Fuse Panel

Audi A4 Avant Quattro 2004 - FUSE PANEL IDENTIFICATION

For fuse position within panel, see Fig. 9. For fuse number, amperage rating and circuits protected, see FUSE IDENTIFICATION (FUSE PANEL) table.

Fig. 9: Audi A4 Avant Quattro 2004 - Component Locations - Identifying Fuse Panel Fuse Locations

NOTE:

Fuses 23 through 44 may be designated in wiring diagrams with a prefix of 2. For example, fuse No. 29 may be labeled as 229. Fuse No. 43 may be labeled as 243.

Audi A4 Avant Quattro 2004 FUSE IDENTIFICATION (FUSE PANEL)

Fuse No.	Amp Rating	Circuits Protected
1	10	A/C Control Head
2	5	Footwell Lights
3	5	Washer Nozzle Heaters
4	5	Coolant Fan Control Module, Coolant Fan Control Module II (1)
5	10	Oil Level Thermal Sensor, Tiptronic Switch, Rear Heated Seat Control Module, Navigation W/CD Mechanism Control Module, Board Computer Function Selector Switch II, Rear Window Shade Switch
6	5	High Pressure Sensor, Air Quality Sensor
7	10	Brake Light Switch, Clutch Vacuum Vent Valve Switch, ABS Control Module, Anti-Slip Control Switch
8	5	Operating Electronics Control Module, Telephone Amplifier, Telephone/Telematics Control Module
9	15	Brake Booster Relay (2)
10
(3)	5	Headlight Adjuster & Motor
(4)	10	Headlight Range Control Module
11	N/A	Not Used
12	10	DLC
13	10	Steering Column Electronic System Control Module
14	10	Brake Light Switch
15	10	Control Module W/Indicator Unit, Navigation W/CD Mechanism Control Module
16	5	Garage Door Opener Control Head & Control Module
17	N/A	Not Used
18	N/A	Not Used
19	N/A	Not Used
20 (4)	15	Vehicle Electrical System Control Module, High Intensity Gas Discharge Lamp Control Module
21 (4)	15	Vehicle Electrical System Control Module, High Intensity Gas Discharge Lamp Control Module
22	15	Door Control Module (Driver's & Passenger's)
23	15	Rear Window Regulator Motor
24	20	Comfort System Center Control Module
25	30	A/C Control Head, Fresh Air Blower Control Module
26	30	A/C Control Head
27	N/A	Not Used
28	20	Fuel Pump
29	20	ECM, Ignition Coils
30	20	Sunroof Motor
31
(5)	15	Back-Up Light, DLC
(6)	15	Shift Lock Solenoid, Multi-Function Transmission Range Switch
(7)	15	Shift Lock Solenoid, Park/Neutral Position, Transmission Control Module
(8)	15	Park/Neutral Position, Transmission Control Module
32	15	Fuel Injectors
33	15	Cigarette Lighter
34
Engine Code AMB	15	MAF Sensor, Secondary Air Injection Pump Relay & Solenoid Valve, EVAP Canister Purge Valve Regulator Valve No. 1, Turbocharger Recirculating Valve, Oxygen Sensor Heater, Leak Detection Pump
Engine Code AVK	15	MAF Sensor, Secondary Air Injection Pump Relay & Solenoid Valve, EVAP Canister Purge Valve Regulator Valve No. 1, Intake Manifold Change Over Valve, Oxygen, Sensor Heater, Leak Detection Pump
Engine Code BHF	15	MAF Sensor, Secondary Air Injection Pump Relay & Solenoid Valve, EVAP Canister Purge Valve Regulator Valve No. 1, Intake Manifold Change-Over Valve, Electrohydraulic Engine Mount Solenoid Valve, Exhaust Valve Flap, Oxygen Sensor Heater, Leak Detection Pump
35	30	Socket
36	30	Vehicle Electrical System Control Module, Rear Windshield Wiper Motor (9)
37	25	Vehicle Electrical System Control Module
38	15	Comfort System Center Control Module, Alarm Horn, Radar Interior Monitoring Control Module
39	20	Radio, Amplifier
40	25	Horn Relay
41	N/A	Not Used
42 (1)	25	ABS Control Module
43	15	ECM
44	30	A/C Control Head, Rear Heated Seat Control Module
(1) Applies to vehicles equipped with engine code BHF only. (2) Applies to vehicles equipped with engine codes AMB or AVK only. (3) Applies to vehicles equipped with light sensor and coming/leaving home function. (4) Applies to vehicles equipped with high intensity gas discharge lamps. (5) Applies to vehicles equipped with manual transmission only. (6) Applies to vehicles equipped with 5-speed tiptronic transmission only. (7) Applies to vehicles equipped with 6-speed tiptronic transmission only. (8) Applies to vehicles equipped with multitronic transmission only. (9) Applies to Avant models only.

Audi A4 Avant Quattro 2004 - MAIN FUSE

Main fuse is locating on battery. See Fig. 10. Main fuse is numbered "S88" and has an amperage rating of 150 amps.

Fig. 10: Audi A4 Avant Quattro 2004 - Component Locations - Locating Main Fuse

Audi A4 Avant Quattro 2004 - RELAYS FOUR-PIN RELAY CARRIER (E-BOX)

For fuse and relay positions within carrier, see Fig. 11. For relay number, position number and circuits protected, see RELAY IDENTIFICATION (FOUR-PIN RELAY CARRIER, E-BOX) table. For fuse number, position number, amperage rating and circuits protected, see FUSE IDENTIFICATION (FOUR-PIN RELAY CARRIER, E-BOX) table.

NOTE:

Four-pin relay carrier is located in electronics box, plenum chamber, in the left rear corner of the engine compartment.

Fig. 11: Audi A4 Avant Quattro 2004 - Component Locations - Identifying Four-Pin Relay Carrier (E-Box)

Audi A4 Avant Quattro 2004 RELAY IDENTIFICATION (FOUR-PIN RELAY CARRIER, E-BOX)

Position	Relay No.	Circuit Protected
1.1 (1)	J151	Coolant Circulation Pump
1.2	N/A	Not Used
2	J299	Secondary Air Injection Pump
3	J271	ECM Power Supply
4
(2)	J434	Starter Locking
(3)	J60	Starter Interlock Alarm System
(4)	J226	Park/Neutral Position
(1) Applies to vehicles equipped with engine codes AVK and BHF. (2) Applies to vehicles equipped with manual transmission only. (3) Applies to vehicles equipped with 5-speed tiptronic transmission only. (4) Applies to vehicles equipped with 6-speed tiptronic and multitronic transmissions only.

Audi A4 Avant Quattro 2004 FUSE IDENTIFICATION (FOUR-PIN RELAY CARRIER, E-BOX)

Position No.	Fuse No.	Amp Rating	Circuit Protected
A	S282	15	Engine Electronics
B	S130	40	Secondary Air Pump
C (1)	S286	15	Automatic Transmission After Run
(1) Applies to vehicles equipped with 6-speed tiptronic and multitronic transmissions only.

Audi A4 Avant Quattro 2004 - FOUR-PIN RELAY CARRIER (INSTRUMENT PANEL)

For fuse and relay positions within carrier, see Fig. 12. For relay number, position number and circuits protected, see RELAY IDENTIFICATION (FOUR-PIN RELAY CARRIER, INSTRUMENT PANEL) table. For fuse number, position number, amperage rating and circuits protected, see FUSE IDENTIFICATION (FOUR-PIN RELAY CARRIER, INSTRUMENT PANEL) table.

NOTE:

Four-Pin relay carrier is located under driver's side of instrument panel.

Fig. 12: Audi A4 Avant Quattro 2004 - Component Locations - Identifying Four-Pin Relay Carrier (Instrument Panel)

Audi A4 Avant Quattro 2004 RELAY IDENTIFICATION (FOUR-PIN RELAY CARRIER, INSTRUMENT PANEL)

Position No.	Relay No.	Circuit Protected
1	N/A	Not Used
2	N/A	Not Used
3	N/A	Not Used
4	N/A	Not Used

Audi A4 Avant Quattro 2004 FUSE IDENTIFICATION (FOUR-PIN RELAY CARRIER, INSTRUMENT PANEL)

Position No.	Fuse No.	Amp Rating	Circuit Protected
A	N/A	N/A	Not Used
B	N/A	N/A	Not Used
C	N/A	N/A	Not Used
D	N/A	N/A	Not Used
E (1)	S45	30	Power Seats
F	N/A	N/A	Not Used
G	S42	40	Coolant Fan
H	S123	50	ABS Control Module
(1) Applies to vehicles equipped with multitronic transmission only.

Audi A4 Avant Quattro 2004 - NINE-PIN RELAY CARRIER

For fuse and relay position within carrier, see Fig. 13. For relay number, position number and circuits protected, see RELAY IDENTIFICATION (NINE-PIN RELAY CARRIER) table. For fuse number, position number, amperage rating and circuits protected, see FUSE IDENTIFICATION (NINE-PIN RELAY CARRIER) table.

NOTE:

Nine-Pin relay carrier is located behind instrument panel.

Fig. 13: Audi A4 Avant Quattro 2004 - Component Locations - Identifying Nine-Pin Relay Carrier

Audi A4 Avant Quattro 2004 RELAY IDENTIFICATION (NINE-PIN RELAY CARRIER)

Position No.	Relay No.	Circuit Protected
1	J17	Fuel Pump
2	J236	Servotronic Control Module
3	J4	Horn
4 (1)	J569	Brake Booster
5	N/A	Not Used
6	J59	Load Reduction
7	N/A	Not Used
8	N/A	Not Used
9	N/A	Not Used
(1) Applies to vehicles equipped with engine codes AMB and AVK only.

Audi A4 Avant Quattro 2004 FUSE IDENTIFICATION (NINE-PIN RELAY CARRIER)

Position No.	Fuse No.	Amp Rating	Circuit Protected
A	S100	10	Rear Shade Circuit Breaker (Right)
B	S100	10	Rear Shade Circuit Breaker (Left)
C	N/A	N/A	Not Used
D	S280	30	Power Windows
E (1)	S45	30	Power Seats
F	S37	30	Power Windows
G	N/A	N/A	Not Used
(1) Applies to vehicles equipped with power seats only.