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Wiring Diagram AUDI TT 2012 - Climatronic control unit - Terminal 15 voltage supply relay 2
| J255 | Climatronic control unit |
| J519 | Onboard supply control unit |
| J681 | Terminal 15 voltage supply relay 2 |
| SC1 | Fuse 1 on fuse holder C |
| SD3 | Fuse 3 on fuse holder D |
| SC4 | Fuse 4 on fuse holder C |
| SC12 | Fuse 12 on fuse holder C |
| SC16 | Fuse 16 on fuse holder C |
| T16d | 16-pin connector, black |
| T52b | 52-pin connector, yellow |
| 44 | Earth point, lower part of left A-pillar |
| 374 | Earth connection 9, in main wiring harness |
| 375 | Earth connection 10, in main wiring harness |
| 384 | Earth connection 19, in main wiring harness |
| B163 | Positive connection 1 (15), in interior wiring harness |
| B278 | Positive connection 2 (15a) in main wiring harness |
| B299 | Positive connection 3 (30), in main wiring harness |
| B300 | Positive connection 4 (30), in main wiring harness |
| * | Relay carrier on onboard supply control unit, on left under dash panel |
| *2 | Main fuse box, on battery on rear right in luggage compartment |
Wiring Diagram AUDI TT 2012 - Fresh air blower control unit - Climatronic control unit - Fuse 8 on fuse holder B - Fresh air blower
| E230 | Heated rear window button |
| J126 | Fresh air blower control unit |
| J255 | Climatronic control unit |
| J519 | Onboard supply control unit |
| J533 | Data bus diagnostic interface |
| ST1 | Fuse carrier 1 |
| SA4 | Fuse 4 in fuse holder A |
| SB8 | Fuse 8 on fuse holder B |
| SB9 | Fuse 9 on fuse holder B |
| SB12 | Fuse 12 on fuse holder B |
| T10l | 10-pin connector, behind dash panel, right, black |
| T16c | 16-pin connector, brown |
| T20d | 20-pin connector, black |
| T20k | 20-pin connector |
| T52c | 52-pin connector, brown |
| V2 | Fresh air blower |
| 43 | Earth point, lower part of right A-pillar |
| B272 | Positive connection (30), in main wiring harness |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B398 | Connection 2 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
| B407 | Connection 2 (convenience CAN bus, low), in main wiring harness |
| * | Relay and fuse carrier, in E-box in engine compartment |
| *2 | Controls for heated rear window via CAN bus |
| *3 | Data bus wire (CAN bus) |
Wiring Diagram AUDI TT 2012 - High-pressure sender - Climatronic control unit - Air conditioner compressor regulating valve
| G56 | Dash panel temperature sensor |
| G65 | High-pressure sender |
| J255 | Climatronic control unit |
| N280 | Air conditioner compressor regulating valve |
| T4a | 4-pin connector, front left in engine compartment, black |
| T16d | 16-pin connector, black |
| V42 | Temperature sensor blower |
| 43 | Earth point, lower part of right A-pillar |
| 366 | Earth connection 1, in main wiring harness |
| 372 | Earth connection 7, in main wiring harness |
| 388 | Earth connection 23, in main wiring harness |
| 389 | Earth connection 24, in main wiring harness |
| 390 | Earth connection 25, in main wiring harness |
| 672 | Earth point 2, on front of left longitudinal member |
| * | According to equipment |
Wiring Diagram AUDI TT 2012 - Climatronic control unit - Centre flap control motor - Air flow flap control motor - Air recirculation flap control motor
| G112 | Potentiometer for centre flap servomotor |
| G113 | Potentiometer for air flow flap control motor |
| G143 | Potentiometer for air recirculation flap control motor |
| J255 | Climatronic control unit |
| T12k | 12-pin connector |
| T20k | 20-pin connector |
| V70 | Centre flap control motor |
| V71 | Air flow flap control motor |
| V113 | Air recirculation flap control motor |
| 97 | Earth connection 1, in air conditioning system wiring harness |
| L31 | Connection (5V), in air conditioning system wiring harness |
Wiring Diagram AUDI TT 2012 - Climatronic control unit - Defroster flap control motor - Left temperature flap control motor - Right temperature flap control motor
| G135 | Potentiometer for defroster flap control motor |
| G220 | Potentiometer for left temperature flap control motor |
| G221 | Potentiometer for right temperature flap control motor |
| J255 | Climatronic control unit |
| T12k | 12-pin connector |
| T20k | 20-pin connector |
| V107 | Defroster flap control motor |
| V158 | Left temperature flap control motor |
| V159 | Right temperature flap control motor |
| 97 | Earth connection 1, in air conditioning system wiring harness |
| L31 | Connection (5V), in air conditioning system wiring harness |
| * | According to equipment |
Wiring Diagram AUDI TT 2012 - Sunlight penetration photosensor - Left footwell vent temperature sender - Evaporator output temperature sender - Front right chest vent temperature sensor - Climatronic control unit
| G107 | Sunlight penetration photosensor |
| G261 | Left footwell vent temperature sender |
| G262 | Right footwell vent temperature sender |
| G263 | Evaporator output temperature sender |
| G385 | Front left chest vent temperature sensor |
| G386 | Front right chest vent temperature sensor |
| J255 | Climatronic control unit |
| T16c | 16-pin connector, brown |
| T16d | 16-pin connector, black |
| T20k | 20-pin connector |
| 97 | Earth connection 1, in air conditioning system wiring harness |
| 411 | Earth connection 2 (sender earth) in main wiring harness |
| * | According to equipment |
| *2 | Left-hand drive models |
| *3 | Only right-hand drive models |
Wiring Diagram AUDI TT 2012 - Front left seat temperature sender - Front right seat temperature sender - Climatronic control unit
| E94 | Heated driver seat regulator |
| E95 | Heated front passenger seat regulator |
| G344 | Front left seat temperature sender |
| G345 | Front right seat temperature sender |
| J255 | Climatronic control unit |
| T3ae | 3-pin connector, black |
| T6d | 6-pin connector, under driver seat, green |
| T6e | 6-pin connector, under front passenger seat, green |
| T16c | 16-pin connector, brown |
| T16d | 16-pin connector, black |
| Z45 | Heated seat cushion for front left seat |
| Z46 | Heated seat cushion for front right seat |
| 411 | Earth connection 2 (sender earth) in main wiring harness |
| * | see applicable current flow diagram for seat heating |
| *2 | Only models with seat heating |
| *3 | According to equipment |
AUDI TT 2012 Overview of control units
| Climatronic control unit -J255- |
| q | Components:-E230-, -G56-, -V42-, -E94-, -E95- |
| q | Location and connector assignment |
| Control unit in dash panel insert -J285- |
| q | Components:-G1-, -Y24-, -K3-, -K32-, -Y8-, -J362-, -K28- |
| q | Location and connector assignment |
| Front passenger door control unit -J387- |
| q | Components:-V148- |
| q | Location and connector assignment |
| Steering column electronics control unit -J527- |
| q | Components:-D-, -N376-, -G85-, -E45-, -E2-, -E4-, -E22-, -F138-, -H-, -N95-, -N250- |
| q | Location and connector assignment |
| Control unit for parking aid -J446- |
| q | Components -R78- |
| q | Location and connector assignment |
| q | is dropped from May 2009 |
| Digital sound package control unit -J525- |
| q | Components -R87- |
| q | Location |
| Driver door control unit -J386- |
| q | Components:-V147- |
| q | Location and connector assignment |
| q | Location and connector assignment from June 2009 |
| Left gas discharge bulb control unit -J343-/right gas discharge light control unit -J344- |
| q | Components -J667-, -J668-, -V294-, -V295-, -V48-, -V49- |
| q | Location and connector assignment |
|
|
| A - | ABS control unit -J104- |
| . |
| Engine control unit -J623- |
| Fitting location |
|
| A - | Engine control unit -J623- |
| C - | 60-pin connector -T60-, black, on wiring harness |
|
| A - | Engine control unit -J623- |
| C - | 40-pin connector -T40-, black, on wiring harness |
|
|
| C - | 12-pin connector -T12l-, black |
|
|
| A - | Convenience system central control unit -J393- |
| B - | Vacant |
| D - | 8-pin connector -T8g-, black, on wiring harness |
| F - | 18-pin connector -T18f-, black, on wiring harness |
|
Note
|
| A - | Driver door control unit -J386- |
| C - | 16-pin connector -T16f-, black, on wiring harness |
| D - | 20-pin connector -T20f-, black, on wiring harness |
|
Note
|
| A - | Front passenger door control unit -J387- |
| C - | 16-pin connector -T16g-, black, on wiring harness |
| D - | 20-pin connector -T20g-, black, on wiring harness |
|
|
| 2 - | 10-pin connector -T10v-, black |
|
|
| A - | 47-pin connector -T47-, black |
|
| A - | Vacant |
| C - | 20-pin connector -T20c-, black, on wiring harness |
| E - | 12-pin connector -T12i- |
| G - | 10-pin connector -T10ag- |
| H - | 10-pin connector -T10ah- |
|
|
| B - | 12-pin connector -T12c-, black |
| D - | 11-pin connector -T11c-, brown |
| F - | 8-pin connector -T8h-, black |
| J - | 6-pin, connector -T6h-, black |
| L - | 2-pin connector -T2t-, black |
|
|
|
| 2 - | 52-pin connector -T52b-, yellow |
| 3 - | 52-pin connector -T52c-, brown |
|
|
| 1 - | 32-pin connector -T32-, blue |
|
|
| 1 - | 20-pin connector -T20d-, black |
|
|
| A - | Headlight range control, control unit -J431- |
| B - | 26-pin connector -T26a-, black, on wiring harness |
|
|
| A - | 75-pin connector -T75-, yellow |
|
| A - | Fuel pump control unit -J538- |
|
| A - | Fuel pump control unit -J538- |
| B - | 10-pin connector -T10k-, black, on wiring harness |
|
|
| 1 - | 18-pin connector -T18c-, black |
|
|
| 2 - | 20-pin connector -T20k- |
| 4 - | 16-pin connector -T16c-, brown |
| 5 - | 3-pin connector -T3ae-, black |
|
| 3 - | Wiper motor control unit -J400- |
| 5 - | 4-pin connector -T4-, black |
|
| 1 - | 4-pin connector -T4c-, black |
| 2 - | 4-pin connector -T4c-, black |
| 3 - | Radiator fan control unit -J293- |
| Radiator fan -V7- |
| 4 - | Radiator fan 2 -V177- |
|
| A - | Power steering control unit -J500- |
| B - | 2-pin connector -T2s-, black |
|
|
|
| 1 - | Tyre pressure monitor control unit -J502- |
| A - | 18-pin connector -T18c-, black |
|
| - T18c - | Designation | - T18c - | Designation | |
| 1 | 10 | |||
| 2 | 11 | |||
| 3 | Terminal 30 | 12 | ||
| 4 | 13 | |||
| 5 | Convenience CAN bus high | 14 | ||
| 6 | Convenience CAN bus low | 15 | ||
| 7 | 16 | Tyre pressure monitor button -E226-, in operating unit in front of centre console -E461- | ||
| 8 | 17 | |||
| 9 | Terminal 31 | 18 |
|
| 1 - | Bi-Xenon gas discharge headlights with cornering light, left and right |
| q | Output module for left headlight -J667-Output module for right headlight -J668-, in headlight housing |
| 2 - | Left gas discharge bulb control unit -J343-/right gas discharge light control unit -J344- |
| 14-pin connector -T14a-/14-pin connector -T14b-, black |
|
| 1 - | Front interior light -W1- with anti-theft alarm sensor -G578- |
| A - | 4-pin connector -T4p- |
|
| - T4p - (A) | Designation | - T4p - (A) | Designation | |
| 1 | 3 | onboard supply control unit -J519- | ||
| 2 | Terminal 31 | 4 | Terminal 30 |
|
| 1 - | Front interior light -W1- |
| q | with front passenger side reading light -W13-, Driver side reading lamp -W19-, Driver side reading lamp button -E457-, Front passenger side reading lamp button -E458- |
| A - | 6-pin, connector -T6m-, brown |
|
| - T6m - (A) | Designation | - T6m - (A) | Designation | |
| 1 | Terminal 31 | 4 | onboard supply control unit -J519-, terminal 30a | |
| 2 | onboard supply control unit -J519- | 5 | Terminal 58s | |
| 3 | Automatic anti-dazzle interior mirror -Y7- | 6 | Terminal 30 |
|
| Overview of convertible roof components |
| q | Location convertible roof latch open switch -F294- |
| 5 - | Convertible roof latch closed switch -F295-, right |
| q | Location |
| Right convertible top cover motor -V381-/right sender for convertible roof cover -G597- |
| q | Location |
| Left convertible top cover motor -V383-/left sender for convertible roof cover -G596- |
| q | Location |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 - | Convertible roof latch open switch -F294- |
| 2 - | Contact for convertible roof latch open switch -F294- |
| 3 - | Cable to 4-pin connector -T4w- |
|
