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Fuse box diagrams (layout, location, function, assignment) in the cabin and engine compartment of Audi 100 and 200 (C3) (1989, 1990, 1991).
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.
Engine Compartment Fuse Box Diagram
| № | A | Description |
|---|---|---|
| 1 | 15 | Fog lights, rear fog lights |
| 2 | 15 | Emergency flashers |
| 3 | 25 | Horn, brake lights |
| 4 | 15 | Reading lights, luggage compartment, cigar lighter, interior lights, make-up mirror, Board Computer |
| 5 | 30 | Not used |
| 6 | 5 | Side marker, park lights, right |
| 7 | 5 | Side marker, park lights, left |
| 8 | 10 | Hi-beam headlight, hi-beam indicator light |
| 9 | 10 | Hi-beam headlight, left |
| 10 | 10 | Low beam, headlight, right |
| 11 | 10 | Low beam, headlight, left |
| 12 | 15 | Instrument cluster, back-up lights, cruise control, electronic thermoswitch |
| 13 | 15 | Fuel pump |
| 14 | 5 | Glove compartment, engine compartment, license plate lights |
| 15 | 25 | Windshield wipers |
| 16 | 30 | Rear window heat element, outside mirror heat element |
| 17 | 30 | Fresh air blower |
| 18 | 5 | Rear wiper (wagon) |
| 19 | 10 | Central locking system and fuel injection control unit 100, 100 Quattro |
| 20 | 30 | Heated seats with Memory Seat |
| 21 | 25 | Not used |
| 22 | - | Not used |
| 23 | 30 | Not used |
| 24 | 10 | Not used |
| 25 | 30 | Power seats with memory, passenger power seat |
| 26 | 5 | Auto-Check, power mirrors, driver's seat memory control |
| 27 | 10 | Ignition control unit 100, 100 Quattro |
| 28 | 15 | Fuel injection control unit II |
| 29 | - | Spare fuses |
| 1 | Not used | |
| 2 | Radiator cooling fan (stage 2) | |
| 3 | 100 models - radiator cooling fan after-run | |
| 200 models - radiator cooling fan (stage 1) | ||
| 4 | Not used | |
| 5 | Load reduction relay | |
| 6 | Not used | |
| 7 | Horn | |
| 8 | Anti-theft relay | |
| 9 | Intermittent washer/wiper | |
| 10 | Fuel pump | |
| 11 | A/C relay | |
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Auxiliary relay panel in the instrument panel
It is located behind the panel below the steering wheel.
| № | Relays |
|---|---|
| 1 | Not Used |
| 2 | Seat belt/park light radio warning control unit |
| 3 | Interior light delay control unit |
| 4 | Not Used |
| 5 | Lamp control unit, front |
| 6 | Not Used |
| 7 | Rad coolant fan relay 3rd stage |
| 8 | ABS combination relay |
| 9 | Intensive washer relay |
| 10 | Power window control unit |
| 11 | Power window control unit |
| 12 | Rear window wiperwasher relay |
| 13 | Not Used |
| 14 | Circuit breaker for windows |
| 15 | Driver heated seat relay |
| 16 | Passenger heated seat relay |
| 17 | Not Used |
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