Audi TT 2005 - 2005-06 ELECTRICAL Fuses & Circuit Breakers - TT Coupe & Roadster

Audi TT 2005 - IDENTIFICATION

WARNING:

Vehicles are equipped with air bag supplemental restraint system. Before attempting any repairs involving steering column, instrument panel or related components, see AIRBAG SAFETY PRECAUTIONS in BODY INTERIOR article.

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.

Audi TT 2005 - ENGINE CODE

NOTE:

Information for the 3.2L VR6 is included in this article. The 3.2L VR6 models use the Quattro? drive system and the Direct Shift Gearbox (DSG).

Engines are identified by a 3-letter code stamped on the engine. For engine code locations, see Fig. 1 and Fig. 2 . Engine codes are also located on the vehicle data plate.

Fig. 1: Audi TT 2005 - Component Locations - Locating "Engine Code" And "Serial Number" (1.8L 4 Cyl. - Code AMU Shown)

Fig. 2: Audi TT 2005 - Component Locations - Locating "Engine Code" And "Serial Number" (3.2L 6 Cyl. - BHE & BPF)

Audi TT 2005 - FUSES - CIRCUIT PROTECTION

WARNING:

Never replace a fuse with one that has a higher amperage rating. A fuse with a too high amperage could damage the electrical part and cause a fire.

For access to fuse box, refer to illustration below.

Fig. 3: Audi TT 2005 - Component Locations - Identifying Fuses Box Panel Cover

The individual circuits are protected by fuses. The fuse panel with the fuses is located on the left end face of the instrument panel behind a cover, other fuses and relays are located through out the vehicle for these components refer to COMPONENT IDENTIFICATION.

There is a plastic clip (fuse puller) in the holder of the fuse panel, which can be used to remove the fuses.

Two spare fuses and a sticker identifying the fuses are located on the inside of the fuse box cover.

Fuses with the proper ampere ratings are available at your Audi dealer.

NOTE:

On no account should fuses be repaired (e.g. with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire. If a fuse blows repeatedly, do not keep replacing it, diagnose and fix shorted or overloaded circuit.

AUTOMATIC CIRCUIT BREAKERS:

The electric power windows and the electric seat adjusters are protected with circuit breakers which reset automatically after the circuit overload has been corrected.

Audi TT 2005 - FUSE - COLOR CODES

Identifying fuse color and ampere rating, refer to table below.

WARNING:

Never replace a fuse with one that has a higher amperage rating. A fuse with a too high amperage could damage the electrical part and cause a fire.

Audi TT 2005 IDENTIFYING FUSE BY COLOR

Current Rating Amperes	Color
1A	Black
3A	Violet
5A	Light Brown
7.5A	Brown
10A	Red
15A	Blue
20A	Yellow
25A	White or Natural
30A	Green
40A	Orange

Audi TT 2005 - REPLACING A FUSE

A problem in the electrical system may be caused by a blown fuse.

• Switch off the ignition and the electrical component affected.
• Carefully pry the face cover off the instrument panel using the ignition key or a screwdriver. See Fig. 3.
• Check the fuse index to find out which fuse belongs to the component which has failed. See FUSE INDEX INFORMATION.
• Remove the blown fuse with the plastic clip (fuse puller) provided. The clip is located on the holder in the fuse box.
• Replace a blown fuse (recognizable by the melted metal strip inside) with a fuse of the same amperage.
• Firmly snap the fuse cover back onto the end of instrument panel face.

Audi TT 2005 - COMPONENT IDENTIFICATION FUSE INDEX INFORMATION

WARNING:

Never replace a fuse with one that has a higher amperage rating. A fuse with a too high amperage could damage the electrical part and cause a fire.

- the appropriate wiring diagrams for applicable fuse usage and amperage ratings, for 2005 see POWER DISTRIBUTION and for 2006, see POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article.

For fuse color/amperage identification, see FUSE - COLOR CODES table.

For access to fuse box, refer to Fig. 3, also see Fig. 4.

Audi TT 2005 - FUSE BOX - PASSENGER COMPARTMENT

Fig. 4: Audi TT 2005 - Component Locations - Identifying Fuse Box

Audi TT 2005 IDENTIFYING FUSES (PASSENGER COMPARTMENT)

Fuse No.	Rating Amperage	Function/Component	Wiring ID	Terminal
1	10A	Z4 - Heated outside mirror, driver side Z5 - Heated outside mirror, passenger side Z20 Left Washer Nozzle Heater Z21 - Right Washer Nozzle Heater	S1	75
2	10A	E3 - Emergency Flasher Switch	S2	75
3	5A	W6 - Glove Compartment Light J5 - Fog Light Relay E87 - A/C Control Head	S3	58
4	5A	X4 - Left License Plate Light X5 - Right License Plate Light	S4	58
5	7.5A	E159 - Fresh Air/Recirculating Flap Switch J151 - Coolant Circulation Pump Relay J123 - Front Lamp Control Module F47 - Brake Pedal Switch	S5	15
6	5A	J429 - Control Module for central locking	S6	15
7	10A	T16 - Data Link Connector (DLC) F4 - Back-Up Light Switch E3 - Emergency Flasher Switch G22 - Speedometer Vehicle Speed Sensor (VSS)	S7	15
8	5A	J412 - Operating Electronics and Telephone Control Module	S8	15
9	5A	J104 - ABS Control Module	S9	75
10	10A	86s-Contact J429 - Control Module for central locking J285 - Control Module with indicator unit in instrument panel insert	S10	86s
11	5A	J285 - Control Module with indicator unit in instrument panel insert G266 - Oil Level Thermal Sensor	S11	15
12	7.5A	T16 - Data Link Connector J412 - Operating Electronics and Telephone Control Module	S12	30
13	10A	F - Brake Light Switch	S13	30
14	10A	J429 - Control Module for central locking M27 - Left Door Warning Light M28 - Right Door Warning Light E183 - Switch for passenger compartment monitoring E150 - Driver's Interior Lock Switch E188 - Switch for remote unlock, rear lid	S14	30
15	5A	J285 - Control Module with indicator unit in instrument panel insert J217 - Transmission Control Module	S15	30
16	10A	J293 - Coolant Fan Control (FC) Control Module	S16	30
17	15A	J5 - Fog Light Relay Daytime driving lights	S17	75
18	10A	M32 - Right High Beam Headlight J5 - Fog Light Relay J285 - Control Module with indicator unit in instrument	S18	56
19	10A	M30 - Left High Beam Headlight	S19	56
20	15A	V49 - Right Headlight Beam Adjusting Motor E102 - Headlight Adjuster V48 - Left Headlight Beam Adjusting Motor J123 - Front Lamp Control Module	S20	56
21	15A	J123 - Front Lamp Control Module	S21	56
22	5A	J123 - Front Lamp Control Module M3 - Right Parking Light J285 - Control Module with indicator unit in instrument panel insert	S22	58
23	5A	J123 - Front Lamp Control Module Ml - Left Parking Light J285 - Control Module with indicator unit in instrument panel insert	S223	57
24	20A	J31 - Wiper/Washer Intermittent Relay E22 - Windshield Wiper/Washer Switch	S224	75
25	25A	E87 - A/C Control Head J9 - Rear Window Defogger Relay V2 - Fresh Air Blower J126 - Control Module for fresh air blower	S225	75
26	25A	E15 - Rear window defogger switch	S226	75
27	30A	J53 - Wind Deflector Control Module (Cabrio) E278 - Wind Deflector Switch (Cabrio)	S227	75
28	20A	G6 - Fuel Pump (FP)	S228	87
29	15A	J220 - Motronic Engine Control Module (ECM)	S229	15
30	-	Not used	-	-
31	5A 20A	J492 - All-Wheel Drive Control Module J217 - Transmission Control Module	S231	15
32	10A	N... - Fuel Injectors	S232	87
33	20A 30A (1)	J31 - Wiper/Washer Intermittent Relay	S233	30
34	10A	N75 - Wastegate Bypass Regulator N205 - Valve 1 for camshaft adjustment N249 - Recirculating valve for turbocharger	S234	87
35	-	Not used	-	-
36	15A	E23 - Fog Light Switch	S236	75
37	20A	J220 - Motronic Engine Control Module (ECM) J271 - Motronic Engine Control Module (ECM) Power Supply Relay	S237	30
38	15A	J429 - Control Module for central locking H8 - Alarm Horn	S238	30
39	15A	E3 - Emergency flasher system	S239	30
40	20A	J4 - Horn Relay	S240	30
41	15A	U1 - Cigarette lighter	S241	30
42	20A	R - Radio R12 - Amplifier R146 - Satellite Radio	S242	30
43	10A 15A (2)	N112 - Secondary Air Injection (AIR) Solenoid Valve J299 - Secondary Air Injection (AIR) Pump Relay G70 - Mass Air Flow (MAF) Sensor G235 - Exhaust Gas Temperature (EGT) Sensor 1	S243	87
44	15A	E94 - Drivers Heated Seat Adjuster E95 - Front Passenger Heated Seat Adjuster	S244	30
(1) From 2005 m.y. (2) Applies to 3.2L Engine codes BHE & BPF. Some of the equipment items listed are optional or only available on certain model configurations.

NOTE:

Whenever replacing a fuse, always consult the sticker on the inside of the fuse panel cover. It contains the most up-to-date information regarding the fuse arrangement.

Audi TT 2005 - MAIN FUSE BOX/BATTERY - ENGINE COMPARTMENT

NOTE:

For 1.8L models the main fuses are located at the battery in the engine compartment, for the 3.2L main fuses are located at the battery which is located in the trunk spare wheel well on left side. See Fig. 5 and Fig. 6.

For main battery fuse box, fuse identification, see MAIN BATTERY BOX - FUSE IDENTIFICATION. For fuse color/amperage identification, see FUSE - COLOR CODES table.

Fig. 5: Audi TT 2005 - Component Locations - Locating Main Battery Fuse Box

Fig. 6: Audi TT 2005 - Component Locations - Identifying Location Of Battery & Main Fuses In Spare Wheel Area

Audi TT 2005 - Main Fuse Box/Battery Fuses

- the appropriate wiring diagrams for applicable fuse usage and amperage ratings, for 2005 see POWER DISTRIBUTION and for 2006, see POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article.

For fuse color/amperage identification, see FUSE - COLOR CODES table.

Fig. 7: Audi TT 2005 - Component Locations - Identifying Main Fuse Box/Battery Fuse Locations

Audi TT 2005 MAIN BATTERY BOX - FUSE IDENTIFICATION

Circuit No.	Circuit Description	Amperage Rating
S131	Safety Fuse No. 1	-
S132	Safety Fuse No. 2	-
S133	Safety Fuse No. 3	-
S134	Safety Fuse No. 4	-
S138	Safety Fuse No. 5	-
S162	No. 1 Fuse Bracket (Battery)	-
S163	No. 2 Fuse Bracket (Battery)	-
S164	No. 3 Fuse Bracket (Battery)	-

Audi TT 2005 - RELAYS W-BOX RELAY CARRIER

For fuse and relay positions within carrier, see Fig. 8. For relay number, position number and circuits protected, see RELAY & FUSE IDENTIFICATION (W-BOX RELAY CARRIER).

- the appropriate wiring diagrams for applicable fuse usage and amperage ratings, for 2005 see POWER DISTRIBUTION and for 2006, see POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article.

For fuse color/amperage identification, see FUSE - COLOR CODES table.

NOTE:

W-Box Relay Carrier is in the left rear corner of engine compartment, behind brake fluid reservoir, under cover.

Fig. 8: Audi TT 2005 - Component Locations - Identifying W-Box Relay Carrier Fuses & Relays

Audi TT 2005 RELAY & FUSE IDENTIFICATION (W-BOX RELAY CARRIER)

Position	Circuit No.	Circuit Description
1	J299	Secondary Air Injector (AIR) Pump Relay
2	J271	Motronic Engine Control Module, Power Supply Relay
3	S279	Hydraulic Pump Relay Fuse
4	S130	Secondary Air Pump Fuse
5	N/A	Not Used
6	N/A	Not Used
7	S113	Control Module Fuse (Automatic Transmission)
8	N/A	Not Used
9	N/A	Not Used

Audi TT 2005 - THIRTEEN FOLD RELAY PANEL

For fuse and relay position within carrier, see Fig. 9. For relay number, position number and circuits protected, see RELAY IDENTIFICATION (THIRTEEN FOLD RELAY PANEL) table. For fuse number, position number and circuits protected, see FUSE IDENTIFICATION (THIRTEEN FOLD RELAY PANEL) table.

- the appropriate wiring diagrams for applicable fuse usage and amperage ratings, for 2005 see POWER DISTRIBUTION and for 2006, see POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article.

For fuse color/amperage identification, see FUSE - COLOR CODES table.

NOTE:

Thirteen fold relay panel is located behind trim panel under driver's side of instrument panel.

Fig. 9: Audi TT 2005 - Component Locations - Identifying Thirteen Fold Panel Components

Audi TT 2005 RELAY IDENTIFICATION (THIRTEEN FOLD RELAY PANEL)

Position No.	Circuit No.	Circuit Description
1	NA	Not used
2	J123	Front Lamp Control Module
3	J123	Front Lamp Control Module
4	J5	Fog Light Relay
5	J207	Starting Interlock Relay
6	J5	Not used
7	J508	Brake Light Disable Relay (ESP)(not used from 2003 m.y.)
8	J453	Not used
9	J123	Not used
10	J9	Rear Window Defogger Relay
11	J207	Starting Interlock Relay
12	J351	Wind Deflector Control Module (Cabrio)
13	J151 J219	Coolant Circulation Pump Relay Back-Up Light Relay

Audi TT 2005 FUSE IDENTIFICATION (THIRTEEN FOLD RELAY PANEL)

Position No.	Circuit No.	Circuit Description
14	N/A	Not Used
15	N/A	Not Used
16	N/A	Not Used
17	N/A	Not Used
18	S187	Fuse for differential lock (Haldex Coupling)(to 1999 m.y.) Not used (from 2000 m.y.)

Audi TT 2005 - MICRO CENTRAL ELECTRIC PANEL

For relay position within panel, see Fig. 10. For relay number, position number and circuits protected, see RELAY IDENTIFICATION (MICRO CENTRAL ELECTRIC PANEL) and FUSE IDENTIFICATION (MICRO CENTRAL ELECTRIC PANEL) tables.

- the appropriate wiring diagrams for applicable fuse usage and amperage ratings, for 2005 see POWER DISTRIBUTION and for 2006, see POWER DISTRIBUTION in SYSTEM WIRING DIAGRAMS article.

For fuse color/amperage identification, see FUSE - COLOR CODES table.

NOTE:

Micro central electric panel is located below shelf on left side.

Fig. 10: Audi TT 2005 - Component Locations - Identifying Micro Central Electric Components

Audi TT 2005 RELAY IDENTIFICATION (MICRO CENTRAL ELECTRIC PANEL)

Position No.	Circuit No.	Circuit Description
1	J4	Horn Relay
2	J59	Load Reduction Relay
3	NA	Not used
4	J17	Fuel Pump Relay
5	J31	Wiper/Washer Intermittent Relay
6	J31	Wiper/Washer Intermittent Relay

Audi TT 2005 FUSE IDENTIFICATION (MICRO CENTRAL ELECTRIC PANEL)

Position No.	Circuit No.	Circuit Description
A	S67	Convertible top Operation Fuse
B	S279	Hydraulic Pump Relay Fuse
C	S326	Power Window Circuit Breaker