Audi A8 and S8 (1994-2002) Fuse Diagram

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Fuse box diagram (fuse layout), location and assignment of fuses and relays of Audi A8 and S8 (1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002).

Audi A8 and S8 (1994-2002)

Checking and Replacing Fuses

The wiring circuits in the vehicle are protected from short circuits by fuses. This greatly reduces the chance of damage caused by electrical problems.

To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating.

Fuses of the same amperage can be temporarily borrowed from another fuse location if a fuse goes out. Replace the fuse as soon as possible.

Note

  • Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.
  • When replacing a blown fuse, it is important to use only a fuse having the correct amperage rating. The use of a fuse with a rating other than indicated may result in a dangerous electrical system overload.
  • If a properly rated fuse continues to blow, it indicates a problem in the circuit that must be corrected.

Passenger Compartment Fuse Box Diagram

Passenger Compartment Fuse Box Diagram

AProtected Component
15Lamp Control Module, Left Parking Light, Left Front Side Marker Light, Instrument Cluster Combination Processor
25Lamp Control Module, Right Parking Light, Right Front Side Marker Light, Tail Lights, Licence Plate Lights, Instrument Cluster Combination Processor
3151997-2003: Right Headlamp (Low Beam), Lamp Control Module
10Right Headlamp (Low Beam), Lamp Control Module
4151997-2003: Left Headlamp (Low Beam), Headlight Aiming System, Lamp Control Module
10Left Headlamp (Low Beam), Headlight Aiming System, Lamp Control Module
510Left Headlamp (High Beam), Front/Rear Foglight Control Module
610Right Headlamp (High Beam), High Beam Indicator Light
715Emergency Flasher Switch
815Horn
9102000-2003: Data Link Connector
51998-1999: Data Link Connector, Selector Lever Light Relay
51997: Instrument Cluster, Solar Cell Separation Relay
1025Windshield Wiper Washer Switch, Windshield Wiper Washer Intermittent Relay
1110Outside Mirrors
12102000-2003: Heated Steering Wheel, Steering Wheel Control Module
5?: Shift Lock Relay
135A/C Control Head, Cigarette Lighter, Fog Light Relay, Glove Compartment Light, Instrument Cluster, Instrument Cluster Combination Processor, Tail Lights, Ashtray Light, Rear Ashtray Light, Multifunction Transmission Range Switch, Automatic Transmission Console Light, Licence Plate Lights, Illumination For Storage Tray, Cup Holder & Coin Holder, Selector Lever Light Relay Protection Diode, Interior Lights System, Light Switch
145First Speed Coolant Fan Control Relay, Second Speed Coolant Fan Control Relay, Third Speed Coolant Fan Control Relay, Air Quality Sensor (1998-2003)
1515Fog Light Switch, Rear Fog Light Switch, Fog Light Control Module
16301997-2003: Rear Window Defogger Switch, Mirror Defogger, A/C Control Head (2000-2003)
25?: Rear Window Defogger Switch, Mirror Defogger
1752000-2003: Steering Angle Sensor
10?: Back-Up Light
1810Emergency Flasher Switch
1910Stop Lamp Switch, Vacuum Pump Valve, Transmission Control Module
205Washer Nozzle Heaters
2115Data Link Connector, Instrument Cluster, Lamp Control Module, Steering Wheel Control Module, Radio, Headlight Beam Adjustment Motors, Headlight Beam Adjustment Control Module, Parking Aid Control Module, Tire Pressure Monitoring Control Module, Air Bag Malfunction Indicator Lamp, ABS Malfunction Indicator Lamp, Traction Control Indicator Lamp
2252000-2001: Telephone Transceiver, Radio
101994-1998: Telephone Transceiver
23151994-2001: Cigarette Lighter
24102000-2003: A/ C Control Head, Instrument Cluster Combination Processor, Parking Aid Control Module, Solar Cell Separation Relay, Steering Wheel Control Module, Tire Pressure Monitoring Control Module
51997-1999: Instrument Cluster Combination Processor
5?: A/ C Control Head
25102000-2003: A/C Control Head
151994-1999: A/C Control Head, Interior Temperature Sensor, Instrument Cluster, Solar Cell Separation Relay, Steering Wheel Control Module
26101997-2003: Multifunction Transmission Range Switch, Shift Lock Solenoid
5?: Multifunction Transmission Range Switch, Shift Lock Solenoid, Cruise Control System
2715Coolant Pump, Heat Regulating Valves
28102000-2003: A/C Clutch Relay
151994-1997: Coolant Pump, Auxiliary Heater
2952000-2003: Steering Wheel Control Module
101994-1999: Steering Wheel Control Module
30- -
31202000-2003: Fuel Pump
151994-1999: Fuel Pump
32302000-2003: Fuel Injectors, Ignition Coils, Valves № 1 & 2 for Camshaft Adjustment (2001-2003)
20-?: Heated Oxygen Sensors Before TWC, EVAP Leak Detection Pump
3320Heated Oxygen Sensors Before TWC, EVAP Leak Detection Pump, Mass Air Flow Sensor
34151994-1999: Heated Oxygen Sensors After TWC
3552000-2003: Navigation Control Unit
5-?: Auxiliary Heater
36102000-2003: Navigation Control Unit
15-?: Auxiliary Heater
37- -
3852000-2003: Oil Level Thermal Sensor
39252000-2003: ABS Control Module
51994-1999: ABS Control Module
4010ABS Control Module, Anti-Slip Control Switch (with FWD), Brake Vacuum Vent Valve, ARS/ESP Switch, Stop Lamp Switch (Quattro)
4110Front Interior Light, Rear Reading Lights, Central Locking/Alarm System/Interior Light Delay Control Module, Central Locking SAFE Warning Light, Left Front Reading Light, Interior & Map/Reading Relay, Passenger Compartment Monitoring Switch, Make Up Mirror Lights, Door Warning Lights, Power Trunk Release, Power Rear Sunshade
4210Right & Left Power Windows Control Module, Mirror Adjustment Switch, Mirror Fold-Away Function Control Module, Memory Program Switch, Rear Headrest Adjustment Switch, Front Heated Seat Switches, Rear Heated Seat Switch, Front Seat Memory Switch
43152000-2003: Luggage Compartment Release Switch, Right & Left Make Up Mirror Lights, Right & Left Make Up Mirror Lights Switch, Entry/Floor Light Relay, Interior Monitoring Sensors Control Module, Driver's Side Interior Lock Switch, Mirror Memory Control Module, Memory Program Switch, Passengers Seat Memory Program Switch, Ultra Sound Sensors Control Module, Right Reading Light/Map Light, Left Reading Light, Interior Lights
101999: Luggage Compartment Release Switch, Right & Left Make Up Mirror Lights, Entry/Floor Light Relay, Interior Monitoring Sensors Control Module, Driver's Side Interior Lock Switch, Mirror Memory Control Module, Memory Program Switch, Rear Fog Light Switch
4410Central Locking/Alarm System/Interior Lights Delay Control Module, Rear Window Shade Switch, Automatic Dimmer Inside Mirror, Garage Door Control Module, Interior & Map/Reading Light Relay
4515Central Locking/Alarm System/Interior Lights Delay Control Module, Interior Monitoring Sensors Control Module, Driver's Side Interior Lock Switch
4620Power Sunroof Control Module
4715Window Lockout Switch, Right & Left Heated Door Lock Control Module, Cigarette Lighter
48101994-1997: Memory Program Switch, Mirror Memory Control Module
4920Steering Column/Belt Height Control Module, Steering Column Adjustment Switch
5020Front Heated Seat Switch, Rear Window Shade Control Module
51601994-2000: Cooling Fan
52602001-2003: Cooling Fan

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Passenger Compartment Relay Boxes

№1

Passenger Compartment Relay Box 1

Relay
R12000-2003: Horn (J4)
1994-1999: Load Reduction (J59)
R22000-2003: Load Reduction (J59)
1994-1999: Horn (J4)
R31994-1999: Headlight Washer System (J39)
R42000-2003: Fuel Pump (J17)
1994-1999: Staring Interlock (J207)
1994-1999: Starter Inhibitor and Reversing Light (J226)
R51994-1999: Automatic Intermittent Wiper/Washer (J31)
R61994-1999: Fuel Pump (J17)

№2

Passenger Compartment Relay Box 2

Relay
R1Mirror Fold (J351)
R2A/C Clutch (J44)
R3Solar Cell Separation (J309)
Selector Lever Light (J307)
Selector Lever Illumination Diode (J443)
R4Servotronic Control Module (J236)
R5Interior and Map/Reading Light (J91)
Selector Lever Lock Control Unit (J221)
R6Wiper/Washer Intermittent (J31)
Fog Light (J5)
R7(R7+R12): Front/Rear Fog Light Control Module (J512)
Daytime Running Lights Change-Over (J89)
Staring Interlock (J89)
R8Auxiliary Heater (J8)
R9Bulb Monitoring Device (J123)
R10Entry & Floor Light (J348)
R11Wiper/Washer Intermittent (J31)
Solar Cell Isolation (J309)
R12(R7+R12): Front/Rear Fog Light Control Module (J512)
Fresh Air Blower (J13)
R13Automatic Sliding Sunroof Close (J356)

№3

Passenger Compartment Relay Box 3

AProtected Component
340Blower Fan
4- -
5- -
6- -
7- -
Circuit Breaker
130Power Seat (№2)
230Power Seat (Memory) (№1)
Relay
R1Starting Interlock (J207)
Entry and Footwell Lighting (J348)
R2 -
R3Daytime Running Lights (J90)
R4Driving Lights (Litronic) (J336)

№4

Passenger Compartment Relay Box 4

AProtected Component
3- -
4- -
Circuit Breaker
130Power Window (Rear)
230Power Window (Front)
Relay
R1Hazard Warning Light (J2)
Turn Signal (J1)
R2(R2+R5) Multi-Function Steering Wheel (J453)
Second Speed Coolant Fan Control (J101)
(R2+R5) Electric Windows and Sliding Sunroof (J139)
R3ABS Return Flow Pump (J105)
Horn (J4)
Second Speed Coolant Fan Control (J101)
R4Automatic Window Closing (J261)
R5(R2+R5) Multi-Function Steering Wheel (J453)
Coolant Fan Control Relay (First Speed) (J26)
(R2+R5) Electric Windows and Sliding Sunroof (J139)
R6ABS Solenoid Valve (J106)
Load Reduction (J59)
Coolant Fan Control Relay (First Speed) (J26)

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Luggage Compartment Fuse Box Diagram

Luggage Compartment Fuse Box Diagram

AProtected Component
120Heated Seats, Right & Left Rear Seat Regulating Switch
225ABS Valves
20Radio, Amplifier, Right & Left Rear Woofers, Power Antenna
37.5Telephone
4- -
520Power Seat
620Trailer Tow
725ABS Valve
20Radio
15Radio
8- -
9- -
1020Power Seat
1150ABS Control Module
60ABS Control Module
12- -
1360Auxiliary Heater
60Second Battery
14- -
15- -
16- -
Relay
R1(4+9) Battery Isolation (J7)

Engine Compartment Fuse Box Diagram

Engine Compartment Fuse Box Diagram

AProtected Component
115Transmission Control Module
215EVAP Canister Purge Regulator Valve, Intake Change Over Valve, Fuel Injector Air Control Valve & EVAP Leak Detection Pump
15ECM & Fuel Injectors
315ECM & Fuel Injectors
20EVAP Canister Purge Regulator Valve, Intake Manifold Tuning Valve № 1, Intake Manifold Tuning Valve № 2, Fuel Injector Air Control Valve & EVAP Leak Detection Pump, Secondary Air Injection, Electrohydraulic Engine Mounts, MAF Sensor, Camshaft Adjustment Valves, (Control Elements).
420ECM & Ignition Coil Terminal № 15
5ECM
515Transmission Control Module
Relay
R1Immobilizer (J341)
R2Engine Control Module (J271)
Secondary Air Injection Pump (J299)

 

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