Audi 100 C4 (1992) – fuse box diagram
Year of production: 1992, 1993, 1994.
Cigarette lighter fuse (power socket) in Audi 100 C4 (1992). is the fuse 4 In the fuse box on the instrument panel.
Instrument panel fuse box

No. |
[A] |
Description |
1 | 15 | Rear fog lights |
2 | 15 | Emergency flash switch, anti-theft system (USA only) |
3 | 25 | Horns, brake light switch |
4 | 15 | Luggage compartment, lighting, cigar lighter, interior lighting |
5 | 30 | Unused |
6 | 5 | Rear lights, side marker light, RF |
7 | 5 | Tail lights, side marker lights, LF |
8 | 10 | Right high beam headlamp |
9 | 10 | Left high beam headlamp |
10 | 10 | Headlamp, low beam, right |
11 | 10 | Headlamp, low beam, left |
12 | 15 | Automatic transmission, reverse lights, interior lighting |
13 | 15 | Fuel pump |
14 | 5 | License plate lighting, glove box lighting, engine compartment lighting, center console |
15 | 25 | Windshield wipers / washer |
16 | 30 | Rear fogger |
17 | 30 | Fresh air fan, air conditioning |
18 | 5 | Mirror power switch |
19 | 10 | Central locking, anti-theft system (USA only) |
20 | 30 | Heated seats |
21 | 25 | Fuel injection controller, diagnostics |
22 | – | Unused |
23 | – | Unused |
24 | – | Unused |
25 | – | Unused |
26 | 5 | Speedometer, electric mirrors |
27 | 10 | Ignition control unit |
28 | 15 | Fuel injection controller, electronic engine control |
29 | – | Unused |
30 | 5 | Automatic transmission |
No. | Description |
1 | Rear fog light jumper connector |
2 | Rad. cooling fan relay 2nd stage |
3 | Rad. cooling fan relay after control unit startup |
4 | Unused |
5 | Load reduction relay |
6 | Unused |
7 | Horn relay |
8 | Automatic transmission / anti-theft relay |
9 | Intermittent washer/wiper, relay |
10 | Fuel pump relay, J17 |
11 | Unused |

No. |
Description | Color |
A | A/C connector | Gray |
B | Right front wiring harness connector | black |
C | Instrument panel connector | blue |
D | Wiring harness connector on the front left side | Green |
E | Wiring harness connector on the front left side | Yellow |
F | Instrument panel connector | brown |
G | Instrument panel connector | Red |
H | Rear wiring harness connector | black |
I | Instrument panel connector | Red |
J | Instrument panel connector | Yellow |
K | – | – |
L | Single connector (terminal 30) | Clear |
M | For optional equipment connector | Clear |
N | – | – |
O | – | – |
P | For fuse 26 | – |