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Wiring Diagram AUDI TT 2009 - Control unit with display for radio and navigation
| J503 | Control unit with display for radio and navigation |
| SD3 | Fuse 3 on fuse holder D |
| SC32 | Fuse 32 on fuse holder C |
| SC34 | Fuse 34 on fuse holder C |
| T8a | 8-pin connector, black |
| T12f | 12-pin connector, black |
| 380 | Earth connection 15, in main wiring harness |
| 610 | Earth point (audio), front below centre console |
| B299 | Positive connection 3 (30), in main wiring harness |
| B300 | Positive connection 4 (30), in main wiring harness |
| * | Main fuse box, on battery on rear right in luggage compartment |
| *2 | Only models with BOSE sound system |
Wiring Diagram AUDI TT 2009 - Control unit with display for radio and navigation - Digital sound package control unit - Data bus diagnostic interface
| J503 | Control unit with display for radio and navigation |
| J525 | Digital sound package control unit |
| J533 | Data bus diagnostic interface |
| T8a | 8-pin connector, black |
| T12g | 12-pin connector, black |
| T20d | 20-pin connector, black |
| T32a | 32-pin connector, black |
| T38 | 38-pin connector, black |
| B415 | Connection 1 (infotainment CAN bus, high), in main wiring harness |
| B421 | Connection 1 (infotainment CAN bus, low), in main wiring harness |
| * | Only models with Standard sound system |
| *2 | Up to January 2009 |
| *3 | From February 2009 |
Wiring Diagram AUDI TT 2009 - Control unit with display for radio and navigation - Digital sound package control unit
| J503 | Control unit with display for radio and navigation |
| J525 | Digital sound package control unit |
| T12g | 12-pin connector, black |
| T32a | 32-pin connector, black |
| T38 | 38-pin connector, black |
| 364 | Earth connection 1 (LF), in dash panel wiring harness |
| * | Only models with Standard sound system |
| *2 | Up to January 2009 |
| *3 | From February 2009 |
Wiring Diagram AUDI TT 2009 - Control unit with display for radio and navigation - Digital sound package control unit
| J503 | Control unit with display for radio and navigation |
| J525 | Digital sound package control unit |
| R36 | Telephone transmitter and receiver unit |
| T8a | 8-pin connector, black |
| T12g | 12-pin connector, black |
| T18a | 18-pin connector, black |
| T18b | 18-pin connector, behind glove compartment, black |
| T54a | 54-pin connector, black |
| 365 | Earth connection 2 (LF), in dash panel wiring harness |
| * | Only models with preparation for mobile telephone |
| *2 | Only models with BOSE sound system |
| *3 | Only models with preparation for mobile telephone and no hands-free system |
Wiring Diagram AUDI TT 2009 - Control unit with display for radio and navigation - CD changer
| J503 | Control unit with display for radio and navigation |
| R41 | CD changer |
| T12a | 12-pin connector, black |
| T12f | 12-pin connector, black |
| 280 | Earth connection, in communications wiring harness |
| 385 | Earth connection 20, in main wiring harness |
| * | Only models with CD changer |
Wiring Diagram AUDI TT 2009 - Control unit with display for radio and navigation - iPod holder
| J503 | Control unit with display for radio and navigation |
| R192 | iPod holder |
| T12a | 12-pin connector, in rear centre console, black |
| T12f | 12-pin connector, black |
| T12r | 12-pin connector |
| * | Only models with iPod holder |
Wiring Diagram AUDI TT 2009 - Control unit with display for radio and navigation - iPod holder - Connection for external audio sources
| J503 | Control unit with display for radio and navigation |
| R192 | iPod holder |
| R199 | Connection for external audio sources |
| T4z | 4-pin connector, in centre console, black |
| T12a | 12-pin connector, in rear centre console, black |
| T12f | 12-pin connector, black |
| T12r | 12-pin connector |
| 399 | Earth connection 34, in main wiring harness |
| * | Only models with connection for external audio sources - AUX-IN socket |
| *2 | From November 2007 |
Wiring Diagram AUDI TT 2009 - Control unit with display for radio and navigation - Aerial amplifier - Radio - telephone and navigation system aerial - Aerial amplifier 2 - Rear window aerial 1 - Rear window aerial 2
| J503 | Control unit with display for radio and navigation |
| R24 | Aerial amplifier, Rear window, top right |
| R52 | Radio, telephone and navigation system aerial |
| R111 | Aerial amplifier 2, Rear window, bottom right |
| R130 | Rear window aerial 1 |
| R131 | Rear window aerial 2 |
| T2d | 2-pin connector, on rear right roof frame, white |
| T2e | 2-pin connector, on rear right roof frame, yellow |
| T2f | 2-pin connector, on rear right roof frame, blue |
| * | Coupé |
| *2 | Roof aerial |
Wiring Diagram AUDI TT 2009 - Control unit with display for radio and navigation - Aerial - Aerial amplifier - GPS aerial - Radio aerial 2 - Aerial amplifier 2
| J503 | Control unit with display for radio and navigation |
| R11 | Aerial |
| R24 | Aerial amplifier |
| R50 | GPS aerial, Windscreen, centre |
| R93 | Radio aerial 2 |
| R111 | Aerial amplifier 2 |
| * | Roadster |
| *2 | Rod aerial |
AUDI TT 2009 Overview of fuses
|
|
| A - | Screw connection terminal 30 (C) of main fuse carrier on the battery -A- |
| SA - | Fuses on fuse holder A |
| q | Position of fuses |
|
| . |
| Fuses (SB) on fuse holder B |
|
| 1 - | Fuse carrier ST1, black |
| q | Position of fuses |
| 2 - | Fuse carrier ST2, brown |
| q | Position of fuses |
| 3 - | Vacant |
| 4 - | Vacant |
|
| . |
| . |
| Fuses (SC) on fuse holder C |
|
|
|
| No. | Current Flow Diagram designation | Nominal value | Function/component | Terminal | ||
| 1 | - | Fuse 1 on fuse holder C -SC1- | 10 A | - | Fuel pump relay -J17- Electric fuel pump 2 relay -J49-1) Fuel pump control unit -J538- Engine control unit -J623- Front passenger front airbag deactivated warning lamp -K145- Light switch illumination bulb -L9- 16-pin connector, diagnostic connector -T16- | 15 |
| 2 | - | Fuse 2 on fuse holder C -SC2- | 5 A | - | ABS control unit -J104- Brake light switch -F- | 15 |
| 3 | - | Fuse 3 on fuse holder C -SC3- | 5 A | - | Output module for left headlight -J667- | 15 |
| 4 | - | Fuse 4 on fuse holder C -SC4- | 5 A | - | Oil level and oil temperature sender -G266- Tyre pressure monitor button -E226- Tyre pressure monitor control unit 2 -J793- TCS and ESP button -E256- Headlight range control, control unit -J431- High-pressure sender -G65- Reversing light switch -F4- | 15 |
| 5 | - | Fuse 5 on fuse holder C -SC5- | 10 A5) 5 A6) | - | Right headlight range control motor -V49-5) Left headlight range control motor -V48-5) Headlight range control adjuster -E102-5) Control unit for headlight range control -J431-6) Power output module for right headlight -J668-6) | 15 |
| 6 | - | Fuse 6 on fuse holder C -SC6- | 5 A | - | Power steering control unit -J500- Data bus diagnostic interface -J533- Selector lever sensors control unit -J587- Mechatronic unit for dual clutch gearbox -J743- | 15 |
| 7 | - | Fuse 7 on fuse holder C -SC7- | 5 A | - | Control unit for parking aid -J446- Automatic anti-dazzle interior mirror -Y7- Garage door operating unit -E284- Garage door operation control unit -J530- Left washer jet heater element -Z20- Right washer jet heater element -Z21- onboard supply control unit -J519- Washer pump relay -J576- Cabrio windbreak control unit -J531- | 15 |
| 8 | - | Fuse 8 on fuse holder C -SC8- | 5 A 10 A2) | - | All-wheel drive control unit -J492- | 15 |
| 9 | - | Fuse 9 on fuse holder C -SC9- | 5 A | - | Electronically controlled damping control unit -J250- | 15 |
| 10 | - | Fuse 10 on fuse holder C -SC10- | 5 A | - | Airbag control unit -J234- Seat occupied recognition control unit -J706-7) | 15 |
| 11 | - | Fuse 11 on fuse holder C -SC11- | 10 A1)4) 5 A3) | - | Air mass meter -G70-3) 4) Structure-borne noise control unit -J869-4) Crankcase breather heater element -N79-1) 4) | 15 |
| 12 | - | Fuse 12 on fuse holder C -SC12- | 10 A | - | Driver door control unit -J386- Front passenger door control unit -J387- | 30 |
| 13 | - | Fuse 13 on fuse holder C -SC13- | 10 A | - | 16-pin connector -T16-, diagnostic connector | 30 |
| 14 | - | Fuse 14 on fuse holder C -SC14- | 5 A 15 A15) | - | Light/rain sensor -G397-12) Selector lever sensors control unit -J587-14) Mechatronic unit for dual clutch gearbox -J743-15) | 30 |
| 15 | - | Fuse 15 on fuse holder C -SC15- | 5 A 15 A13) | - | onboard supply control unit -J519- Front interior light -W1- Light/rain sensor -G397-13) | 30 |
| 16 | - | Fuse 16 on fuse holder C -SC16- | 10 A | - | Climatronic control unit -J255- | 30 |
| 17 | - | Fuse 17 on fuse holder C -SC17- | 5 A | - | Tyre pressure monitor control unit -J502-7) Tyre pressure monitor control unit 2 -J793- Selector lever sensors control unit -J587-15) | 30 |
| 18 | - | Vacant | ||||
| 19 | - | Vacant | ||||
| 20 | - | Vacant | ||||
| 21 | - | Fuse 21 on fuse holder C -SC21- | 10 A | - | Injectors -N....-1) | 15 |
| 22 | - | Fuse 22 on fuse holder C -SC22- | 30 A | - | Cabrio windbreak control unit -J531-9) | 30 |
| 23 | - | Fuse 23 on fuse holder C -SC23- | 20 A | - | High tone horn -H2- Low tone horn -H7- | 30 |
| 24 | - | Fuse 24 on fuse holder C -SC24- | 15 A 30 A15) | - | Mechatronic unit for dual clutch gearbox -J743- | 30 |
| 25 | - | Fuse 25 on fuse holder C -SC25- | 30 A 20 A9) | - | Heated rear window -Z1- | 30 |
| 26 | - | Fuse 26 on fuse holder C -SC26- | 30 A | - | Driver side window regulator motor -V147- | 30 |
| 27 | - | Fuse 27 on fuse holder C -SC27- | 30 A | - | Front passenger side window regulator motor -V148- | 30 |
| 28 | - | Vacant | ||||
| 29 | - | Fuse 29 on fuse holder C -SC29- | 15 A | - | Washer pump -V5- | 15 |
| 30 | - | Fuse 30 on fuse holder C -SC30- | 20 A | - | Cigarette lighter -U1-10) 12-V plug socket -U5-7) 10) | 15 |
| 31 | Fuse 31 on fuse holder C -SC31- | 40 A | - | Starter -B- Terminal 50 voltage supply relay -J682- | 15 | |
| 32 | Fuse 32 on fuse holder C -SC32- | 5 A | - | Steering column electronics control unit -J527- | 30 | |
| 33 | Fuse 33 on fuse holder C -SC33- | 5 A | - | Control unit in dash panel insert -J285- | 30 | |
| 34 | Fuse 34 on fuse holder C -SC34- | 15 A 20 A8) | - | Navigation system with CD drive control unit -J401- Radio -R- Control unit with display for radio and navigation -J503- | 30 | |
| 35 | Fuse 35 on fuse holder C -SC35- | 30 A | - | Digital sound package control unit -J525- | 30 | |
| 36 | Fuse 36 on fuse holder C -SC36- | 10 A | - | Engine control unit -J623- Motronic current supply relay -J271- Terminal 30 voltage supply relay -J317-4) Fuel pump relay -J17-16) | 30 | |
| 37 | - | Fuse 37 on fuse holder C -SC37- | 5 A | - | Data bus diagnostic interface -J533- | 30 |
| 38 | - | Fuse 38 on fuse holder C -SC38- | 20 A | - | Relay for power sockets -J807-11) Cigarette lighter -U1-11) 12-V plug socket -U5-7) 11) | 30 |
| 39 | - | Vacant | ||||
| 40 | - | Vacant | ||||
| 41 | - | Vacant | ||||
| 42 | - | Vacant | ||||
| 43 | - | Vacant | ||||
| 44 | - | Vacant | ||||
| 45 | - | Vacant | ||||
| 46 | - | Vacant | ||||
| 47 | - | Fuse 47 on fuse holder C -SC47- | 5 A | - | Satellite radio -R146-7) Telephone transmitter and receiver unit -R36- Aerial amplifier for mobile telephone -R86- | 30 |
| 7.5 A | - | TV tuner -R78- Preparation for mobile telephone | 30 | |||
| 48 | - | Fuse 48 on fuse holder C -SC48- | 5 A | - | Preparation for mobile telephone | 15 |
| 49 | - | Vacant |
Note
| t | 1) engine codes BUB, CBRA only |
| t | 2) engine codes CDLB, CDLA only |
| t | 3) engine codes BWA, BPY, CDMA, CDLA, CDLB only |
| t | 4) engine codes CBBB, CFGB |
| t | 5) for manual headlight range control |
| t | 6) for automatic headlight range control |
| t | 7) for models with US equipment only |
| t | 8) for models with Japan equipment only |
| t | 9) Roadster |
| t | 10) up to May 2007 |
| t | 11) from June 2007 |
| t | 12) up to May 2009 |
| t | 13) from June 2009 |
| t | 14) for models with DQ500 7-speed dual clutch gearbox OBH (S tronic) only |
| t | 15) for models with DQ200 7-speed dual clutch gearbox OAM (S tronic) only |
| t | 16) engine codes CEPA, CEPB, CRRA only |
|
|
| A - | Vacant |
| B - | Vacant |
| C - | Vacant |
| 1 - | Fuse holder F |
| q | Position of fuses |
|
| . |
| Fuses (SD) on main fuse carrier |
|
| A - | Connection battery positive |
| 1 - | Fuse 1 on fuse holder D -SD1-, 40 A, to ABS hydraulic pump -V64- |
| 3 - | Fuse 3 on fuse holder D -SD3-, 110 A, to fuse holder C |
|
|
| A - | Vacant |
| B - | Vacant |
| C - | Driver seat adjustment thermal fuse 1 -S44-, 20 A |
| D - | Vacant |
|
| A - | Vacant |
| B - | Vacant |
| C - | Driver seat adjustment thermal fuse 1 -S44-, 20 A |
| D - | Vacant |
|
| 1 - | Slave start socket -U6- (positive) |
| 2 - | Cable to fuse holder A in electronics box, engine compartment |
| 3 - | Cable to main fuse carrier on the battery -A- |
|
