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Audi A8 1998 – 1997 1999 ELECTRICAL Fuses Circuit Breakers A8

Audi A8 1998 - 1997-1999 ELECTRICAL Fuses & Circuit Breakers - A8


Audi A8 1998 - IDENTIFICATION

CAUTION: Before disconnecting battery, get radio code from customer. When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle.

NOTE: After reconnecting the battery be sure to reactivate the radio, clock, power windows and engine according to instructions in the Owner's Manual.


Audi A8 1998 - ENGINE IDENTIFICATION


For A8 models with the 3.7L V8 or 4.2L V8 engine and Engine Codes AEW and ABZ the engine code letters and serial number are stamped on the left side of the cylinder block (arrow), directly above the power steering pump. See Fig. 1. In addition, an adhesive label with engine code letters and serial number is affixed to the toothed belt guard. The engine code letters are also listed on the vehicle data plate.

Audi A8 1998 - Component Locations -  Locating Engine Code (3.7L AEW & 4.2L ABZ) https://portal-diagnostov.com/license.html
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Fig. 1: Audi A8 1998 - Component Locations - Locating Engine Code (3.7L AEW & 4.2L ABZ)


Audi A8 1998 - FUSE & RELAY PANELS IDENTIFICATION



Audi A8 1998 - Fuse Color & Amp Rating Identification



Audi A8 1998 FUSE COLOR/AMP RATING

Fuse Color Amp Rating
Black 1
Lilac 3
Light Brown (Beige) 5
Brown 7.5
Red 10
Blue 15
Yellow 20
Transparent (White) 25
Green 30
Orange 40


Audi A8 1998 - FUSES PASSENGER COMPARTMENT FUSE PANEL Fuse Panel Location


Passenger compartment fuse panel is located behind cover in passenger footwell. See Fig. 2.

Audi A8 1998 - Component Locations -  Locating Passenger Compartment Fuse Panel (Behind Cover In Passenger Footwell, All Models) https://portal-diagnostov.com/license.html
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Fig. 2: Audi A8 1998 - Component Locations - Locating Passenger Compartment Fuse Panel (Behind Cover In Passenger Footwell, All Models)


Audi A8 1998 - Fuse Panel Identification


For fuse position within panel, see Fig. 3. For fuse position number, amp rating and description of circuits protected, see FUSE IDENTIFICATION (FUSE PANEL) table.

Audi A8 1998 - Component Locations -  Identifying Fuse Locations (Behind Cover In Passenger Footwell; All Models) https://portal-diagnostov.com/license.html
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Fig. 3: Audi A8 1998 - Component Locations - Identifying Fuse Locations (Behind Cover In Passenger Footwell; All Models)


Audi A8 1998 FUSE IDENTIFICATION (FUSE PANEL)

Fuse No. Amp Rating Circuits Protected
Fuse Carrier Station No. 1 (Black)
1 5 Lamp Control Module, Left Parking Light, Left Front Side Marker Light
2 5 Lamp Control Module, Right Parking Light, Right Front Side Marker Light, Tail Lights, Licence Plate Lights
3 15 Lamp Control Module
4 15 Lamp Control Module
5 10 Left High Beam Headlight
6 10 Fog Light Relay, High Beam Indicator Light, Right High Beam Headlight
7 15 Emergency Flasher Switch
8 15 Duel Horns
9 5 Instrument Cluster, Solar Cell Separation Relay (1)
9 5 Data Link Connector, Selector Lever Light Relay
10 25 Windshield Wiper Motor(1)
10 25 Windshield Wiper Washer Switch, Windshield Wiper Washer Intermittent Relay
Fuse Carrier Station No. 2 (Red)
1 10 Outside Mirrors
2 N/A Not Used
3 5 A/C Control Head, Cigarette Lighter, Fog Light Relay, Glove Compartment Light, Instrument Cluster, Instrument Cluster Combination Processor, Tail Lights, Ashtray Light, Rear Ashtray Light, Multi-Function Transmission Range Switch
3 5 Selector Lever Light Relay Protection Diode, Interior Lights System, Light Switch (2)
4 5 First, Second and Third Speed Coolant Fan Control Relays
4 5 Air Quality Sensor (2)
5 15 Fog Light Switch, Rear Fog Light Switch
6 30 Rear Window Defogger Switch
7 N/A Not Used
8 10 Emergency Flasher Switch
9 10 Brake Light Switch, Vacuum Pump Valve, Transmission Control Module
10 5 Washer Nozzle Heaters
Fuse Carrier Station No. 3 (Yellow)
1 15 Data Link Connector, Instrument Cluster, Lamp Control Module, Steering Wheel Control Module, Radio, Headlight Beam Adjustment Motors, Headlight Beam Adjustment Control Module, Air Bag Malfunction Indicator Lamp, ABS Malfunction Indicator Lamp, Traction Control Indicator Lamp
2 10 Telephone Transceiver (2)
3 15 Cigarette Lighter
4 5 Instrument Cluster Combination Processor
5 15 A/C Control Head, Interior Temperature Sensor, Instrument Cluster, Solar Cell Separation Relay, Steering Wheel Control Module
6 10 Multi-Function Transmission Range Switch, Shift Lock Solenoid
7 15 Coolant Pump, Heat regulating Valves (1)
8 15 Coolant Pump (1)
9 10 Steering Wheel Control Module
10 N/A Not Used
Fuse Carrier Station No. 4 (Blue)
1 15 Fuel Pump
2 N/A Not Used
3 20 HO2 Sensors Before TWC, MAF Sensor
4 15 HO2 Sensors After TWC
5 N/A Not Used
6 N/A Not Used
7 N/A Not Used
8 N/A Not Used
9 5 ABS Control Module
10 10 Brake Light Switch (Quattro) (1)
10 10 ABS Control Module, Anti-Slip Control Switch (W/FWD)
Fuse Carrier Station No. 5 (Brown)
1 10 Rear Fog Light Switch, Front Interior Light, Rear Reading Lights, Central Locking/Alarm System/Interior Light Delay Control Module
2 10 Right & Left Power Windows Control Module, Mirror Adjustment Switch, Mirror Fold-Away Function Control Module, Memory Program Switch, Rear Headrest Adjustment Switch, Right & Left "B" Pillar Micro Switches, Front Heated Seat Switches
3 10 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
4 10 Central Locking/Alarm System/Interior Lights Delay Control Module, Rear Window Shade Switch, Automatic Dimmer Inside Mirror
5 15 Central Locking/Alarm System/Interior Lights Delay Control Module, Interior Monitoring Sensors Control Module, Driver's Side Interior Lock Switch
6 20 Power Sunroof Control Module
7 15 Window Lockout Switch
7 (2) 15 Right & Left Heated Door Lock Control Module
8 10 Memory Program Switch, Mirror Memory Control Module (1)
9 20 Steering Column/Belt Height Control Module, Steering Column Adjustment Switch
9 20 Steering Column Adjustment Control Module (2)
10 20 Front Heated Seat Switches, Rear Window Shade Control Module
(1) Model year 1997 only.
(2) Model years 1998 and 1999 only.


Audi A8 1998 - RELAY PANELS


NOTE: Relay carriers, (panels) may also have fuse positions on them.


Audi A8 1998 - CENTRAL ELECTRIC PANEL


Central Electrical Panel is located in the passengers footwell. See Fig. 4. For relay positions within panel, see Fig. 5. For relay number, position number and circuits protected, see Relay Identification.

Audi A8 1998 - Component Locations -  Locating Relay Panels Under Passengers Footwell https://portal-diagnostov.com/license.html
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Fig. 4: Audi A8 1998 - Component Locations - Locating Relay Panels Under Passengers Footwell

Audi A8 1998 - Component Locations -  Identifying Relays On Central Electric Panel https://portal-diagnostov.com/license.html
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Fig. 5: Audi A8 1998 - Component Locations - Identifying Relays On Central Electric Panel


Audi A8 1998 - Relay Identification



Audi A8 1998 CENTRAL ELECTRIC PANEL

Position Relay No. Circuit Protected
1 J59 Load Reduction Relay
2 J4 Duel Horn Relay
3 J39 Headlight Washer System Relay
4 J207 Staring Interlock Relay
5 J31 Wiper/Washer Intermittent Relay
6 J17 Fuel Pump Relay


Audi A8 1998 - PASSENGERS FOOTWELL FIFTEEN FOLD RELAY PANEL


Relay panel is located in the passengers footwell. See Fig. 4. For relay positions within panel, see Fig. 6. For relay number, position number and circuits protected, see FIFTEEN FOLD RELAY PANEL table.

Audi A8 1998 - Component Locations -  Identifying Relays On Fifteen Fold Relay Panel https://portal-diagnostov.com/license.html
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Fig. 6: Audi A8 1998 - Component Locations - Identifying Relays On Fifteen Fold Relay Panel


Audi A8 1998 - Relay Identification



Audi A8 1998 FIFTEEN FOLD RELAY PANEL

Position Relay No. Circuit Protected
1 J123 Front Lamp Control Module
2 N/A Not Used
3 N/A Not Used
4 J31 Wiper/Washer Intermittent Relay
5 J348 Relay For Entry & Floor Light
6 J123 Front Lamp Control Module
7 J309 Soar Separation Relay
8 J89 Daytime Running Lights Change-Over Relay Staring Interlock Relay
9 J31 Wiper/Washer Intermittent Relay
10 J351 Control Module For Mirror Fold-Away Function
11 J2 Emergency Flasher Relay
12 J236 Servotronic Control Module
13 J307 Selector Lever Light Relay
14 J44 A/C Clutch Relay
15 J351 Control Module For Mirror Fold-Away Function


Audi A8 1998 - PASSENGERS FOOTWELL AUXILIARY ELEVEN FOLD FUSE & RELAY PANEL


Relay Panel is located in the passengers footwell. See Fig. 4. For relay positions within panel, see Fig. 7. For relay number, position number and circuits protected, see RELAY IDENTIFICATION. For fuse number, position number, amperage and circuits protected, see FUSE IDENTIFICATION.

Audi A8 1998 - Component Locations -  Identifying Fuses & Relays On Auxiliary Eleven Fold Panel https://portal-diagnostov.com/license.html
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Fig. 7: Audi A8 1998 - Component Locations - Identifying Fuses & Relays On Auxiliary Eleven Fold Panel


Audi A8 1998 - Relay Identification (Auxiliary Eleven Fold Panel)



Audi A8 1998 AUXILIARY ELEVEN FOLD FUSE & RELAY PANEL

Position Relay No. Circuit Protected
1 J5 Fog Light Relay
2 N/A Not Used
5 J90 Daytime Running Lights Switch-On Relay
6 N/A Not Used
8 N/A Not Used
9 N/A Not Used
10 N/A Not Used
11 N/A Not Used


Audi A8 1998 - Fuse Identification (Auxiliary Eleven Fold Panel)



Audi A8 1998 FUSE IDENTIFICATION (AUXILIARY ELEVEN FOLD FUSE & RELAY PANEL)

Position No. Fuse No. Amp Rating Circuit Protected
3 S80 30 Power Seat Circuit Breaker
4 S44 30 Power Seat (Memory) Circuit Breaker
7 S25 40 Blower Fan


Audi A8 1998 - DRIVERS FOOTWELL AUXILIARY TEN FOLD RELAY PANEL


Relay panel is located under drivers footwell. Relay panel is behind driver's storage shelf. For relay panel location, see Fig. 8. To identify Auxiliary Ten Fold Relay Panel, see Fig. 9. For relay and fuse positions within panel, see Fig. 10. For relay number, position number and circuits protected, see RELAY IDENTIFICATION. For fuse number, position number, amperage and circuits protected, see FUSE IDENTIFICATION

Audi A8 1998 - Component Locations -  Locating Auxiliary Ten Fold Relay Panel https://portal-diagnostov.com/license.html
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Fig. 8: Audi A8 1998 - Component Locations - Locating Auxiliary Ten Fold Relay Panel

Audi A8 1998 - Component Locations -  Identifying Auxiliary Ten Fold Relay Panel https://portal-diagnostov.com/license.html
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Fig. 9: Audi A8 1998 - Component Locations - Identifying Auxiliary Ten Fold Relay Panel

Audi A8 1998 - Component Locations -  Identifying Relays On Auxiliary Ten Fold Relay Panel https://portal-diagnostov.com/license.html
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Fig. 10: Audi A8 1998 - Component Locations - Identifying Relays On Auxiliary Ten Fold Relay Panel


Audi A8 1998 - Relay Identification (Auxiliary Ten Fold Relay Panel)



Audi A8 1998 RELAY IDENTIFICATION (AUXILIARY TEN FOLD RELAY PANEL)

Position Relay No. Circuit Protected
1 J59 Load Reduction Relay
2 J4 Duel Horn Relay
3 J26 Coolant Fan Control Relay (First Speed)
3 (1) J453 Control Module For Multi-Function Steering Wheel
4 J101 Second Speed Coolant Fan Control Relay
4 (1) J453 Control Module For Multi-Function Steering Wheel
5 N/A Not Used
6 J1 Turn Signal Relay
9 N/A Not Used
10 N/A Not Used
(1) Model years 1998 and 1999 only.


Audi A8 1998 - Fuse Identification (Auxiliary Ten Fold Relay Panel)



Audi A8 1998 FUSE IDENTIFICATION (AUXILIARY TEN FOLD RELAY PANEL)

Position No. Fuse No. Amp Rating Circuit Protected
7 S43 30 Power Window Circuit Breaker (Front)
8 S37 30 Power Window Circuit Breaker (Rear)


Audi A8 1998 - LUGGAGE BOOT RELAY & FUSE CARRIER


NOTE: No relays where located for luggage boot relay and fuse carrier. Only fuses are installed.

Luggage boot relay and fuse carrier is located inside luggage boot, right side panel. See Fig. 11. For relay and fuse positions within panel, see Fig. 12. For relay number, position number and circuits protected. See LUGGAGE BOOT RELAY & FUSE CARRIER table. For fuse color/amp identification. See FUSE COLOR & AMP RATING IDENTIFICATION table.

Audi A8 1998 - Component Locations -  Locating Luggage Boot Relay & Fuse Carrier https://portal-diagnostov.com/license.html
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Fig. 11: Audi A8 1998 - Component Locations - Locating Luggage Boot Relay & Fuse Carrier

Audi A8 1998 - Component Locations -  Identifying Luggage Boot Relays & Fuses https://portal-diagnostov.com/license.html
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Fig. 12: Audi A8 1998 - Component Locations - Identifying Luggage Boot Relays & Fuses


Audi A8 1998 - Fuse Identification (Luggage Boot Relay & Fuse Carrier)



Audi A8 1998 LUGGAGE BOOT RELAY & FUSE CARRIER

Fuse & Relay Position Fuse Number Amp Rating Circuits Protected
1 TV2 Connector N/A Terminal 30 B+ Distribution To Luggage Boot Relay & Fuse Carrier
2 S53 50 ABS Control Module
2 S123 50 ABS Control Module, Quattro (1)
3 S38 20 Heated Seats, Right & Left Rear Seat Regulating Switch
6 (1), (2) S92 20 Radio, Amplifier, Right & Left Rear Woofers, Power Antenna
7 S92 20 Radio
7 (1) S54 25 ABS Valve
15 S45 20 Power Seat Fuse
(1) Model years 1998 and 1999 only.
(2) Manufacturer also shows Fuse No. 119 15 amp (Telephone) for 1998 and 1999 location No.6.
(3) Model year 1997 only.


Audi A8 1998 - PLENUM E-BOX RELAY & FUSE PANEL


Plenum E-Box Relay and Fuse Panel is located to the left of ECM in plenum. See Fig. 13. For fuse and relay positions within relay and fuse panel, see Fig. 14. For relay number, position number and circuits protected, see RELAY IDENTIFICATION. For fuse position number, fuse number, amperage rating and circuits protected, see FUSE IDENTIFICATION.

Audi A8 1998 - Component Locations -  Locating Plenum E-Box Relay and Fuse Panel https://portal-diagnostov.com/license.html
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Fig. 13: Audi A8 1998 - Component Locations - Locating Plenum E-Box Relay and Fuse Panel

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Fig. 14: Audi A8 1998 - Component Locations - Identifying Plenum E-Box Relays & Fuses


Audi A8 1998 - Relay Identification (Plenum E-Box)



Audi A8 1998 RELAY IDENTIFICATION (PLENUM E-BOX RELAY & FUSE PANEL)

Position Relay No. Circuit Protected
1 N/A Not Used
3 N/A Not Used
4 J271 Engine Control Module, Power Supply Relay
5 N/A Not Used
8 N/A Not Used


Audi A8 1998 - Fuse Identification (Plenum E-Box)



Audi A8 1998 FUSE IDENTIFICATION (PLENUM E-BOX RELAY & FUSE PANEL)

Position No. Fuse No. Amp Rating Circuit Protected
2b S113 15 Transmission Control Module
6 S117 15 EVAP Canister Purge Regulator Valve, Intake Change Over Valve, Fuel Injector Air Control Valve & EVAP Leak Detection Pump
7 S116 15 ECM & Fuel Injectors
9 S115 20 ECM & Ignition Coil Terminal No. 15


Audi A8 1998 - COOLANT FAN THIRD SPEED RELAY


Coolant fan third speed relay is located next to drivers footwell auxiliary ten fold relay panel. See Fig. 15.

Audi A8 1998 - Component Locations -  Identifying Coolant Fan Third Speed Relay (J135) https://portal-diagnostov.com/license.html
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Fig. 15: Audi A8 1998 - Component Locations - Identifying Coolant Fan Third Speed Relay (J135)