Wiring Diagram AUDI TT 2015 - Intermittent wiper switch - Cruise control system switch - Steering column electronics control unit
| E22 | Intermittent wiper switch |
| E45 | Cruise control system switch |
| J527 | Steering column electronics control unit |
| * | Only models with cruise control system (CCS) |
Wiring Diagram AUDI TT 2015 - Turn signal switch - Horn plate - Steering column electronics control unit
| E2 | Turn signal switch |
| F350 | Coil connector |
| H | Horn plate |
| J527 | Steering column electronics control unit |
Wiring Diagram AUDI TT 2015 - Steering column electronics control unit
| E313 | Selector lever |
| J527 | Steering column electronics control unit |
| J587 | Selector lever sensors control unit |
| J623 | Engine control unit |
| T10l | 10-pin connector |
| T17a | 17-pin connector, white |
| T17e | 17-pin connector, red |
| T17ex | 17-pin connector, red |
| TALU | Coupling point on left A-pillar, bottom |
| * | see applicable current flow diagram for engine |
| *2 | see applicable current flow diagram for automatic gearbox |
| *3 | Only models with cruise control system (CCS) |
| *4 | From June 2015 |
Wiring Diagram AUDI TT 2015 - Onboard supply control unit
| J519 | Onboard supply control unit |
| T73a | 73-pin connector |
| T73c | 73-pin connector |
| 366 | Earth connection 1, in main wiring harness |
| 367 | Earth connection 2, in main wiring harness |
| 639 | Earth point, left A-pillar |
Wiring Diagram AUDI TT 2015 - Control unit in dash panel insert - Onboard supply control unit
| D2 | Immobiliser reader coil |
| E493 | Dash panel insert operating buttons |
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| J685 | Display unit for front information display and operating unit control unit |
| T4br | 4-pin connector |
| T6b | 6-pin connector |
| T32a | 32-pin connector |
| 370 | Earth connection 5, in main wiring harness |
| 376 | Earth connection 11, in main wiring harness |
| * | From June 2015 |
Wiring Diagram AUDI TT 2015 - Onboard supply control unit - Data bus diagnostic interface
| J519 | Onboard supply control unit |
| J533 | Data bus diagnostic interface |
| T16 | 16-pin connector |
| T20a | 20-pin connector |
| T73a | 73-pin connector |
| U31 | Diagnostic connection |
| 376 | Earth connection 11, in main wiring harness |
| B108 | Connection 1 (CAN bus extended high), in main wiring harness |
| B109 | Connection 1 (CAN bus extended low), in main wiring harness |
| B277 | Positive connection 1 (15a) in main wiring harness |
| B383 | Connection 1 (powertrain CAN bus, high), in main wiring harness |
| B390 | Connection 1 (powertrain CAN bus, low), in main wiring harness |
| B415 | Connection 1 (infotainment CAN bus, high), in main wiring harness |
| B421 | Connection 1 (infotainment CAN bus, low), in main wiring harness |
| B673 | Connection 2 (running gear/dash panel insert CAN bus, high), in main wiring harness |
| B677 | Connection 2 (running gear/dash panel insert CAN bus, low), in main wiring harness |
| B711 | Connection 6 (LIN bus) in main wiring harness |
| * | From June 2015 |
Wiring Diagram AUDI TT 2015 - Light switch - Rain and light sensor - Onboard supply control unit
| E1 | Light switch |
| G355 | Humidity sender |
| G397 | Rain and light sensor |
| J519 | Onboard supply control unit |
| T3a | 3-pin connector, black |
| T4c | 4-pin connector |
| T73a | 73-pin connector |
| T73c | 73-pin connector |
| 369 | Earth connection 4, in main wiring harness |
| B317 | Positive connection 3 (30a) in main wiring harness |
| B698 | Connection 3 (LIN bus) in main wiring harness |
| B731 | Connection 1 (58s), in main wiring harness |
| * | According to equipment |
Wiring Diagram AUDI TT 2015 - Glove compartment light switch - Airbag control unit - Onboard supply control unit - Front roof module - Glove compartment light
| E26 | Glove compartment light switch |
| J234 | Airbag control unit |
| J519 | Onboard supply control unit |
| T2gm | 2-pin connector |
| T3w | 3-pin connector |
| T8a | 8-pin connector |
| T12c | 12-pin connector |
| T73c | 73-pin connector |
| T90a | 90-pin connector, yellow |
| W1 | Front interior light |
| WX3 | Front roof module |
| W6 | Glove compartment light |
| W13 | Front passenger reading light |
| W19 | Driver side reading light |
| Y7 | Automatic anti-dazzle interior mirror |
| 43 | Earth point, lower part of right A-pillar |
| 369 | Earth connection 4, in main wiring harness |
| 373 | Earth connection 8, in main wiring harness |
| B559 | Positive connection 1 (30g) in main wiring harness |
Wiring Diagram AUDI TT 2015 - Centre switch module in dash panel - Onboard supply control unit
| EX22 | Centre switch module in dash panel |
| E256 | Button for TCS and electronic stabilisation program |
| E408 | Entry and start authorisation button |
| E693 | Start/Stop operation button |
| E735 | Driving mode selection button |
| J104 | ABS control unit |
| J518 | Entry and start authorisation control unit |
| J519 | Onboard supply control unit |
| K155 | Warning lamp for electronic stabilisation program and TCS |
| K259 | Start/Stop operation warning lamp |
| L156 | Switch illumination bulb |
| T6c | 6-pin connector |
| T20b | 20-pin connector |
| T40a | 40-pin connector |
| T73c | 73-pin connector |
| 372 | Earth connection 7, in main wiring harness |
| 687 | Earth point 1, on centre tunnel |
| B733 | Connection 3 (58s), in main wiring harness |
| * | see applicable current flow diagram for ABS |
Wiring Diagram AUDI TT 2015 - Centre switch module in dash panel - Onboard supply control unit
| EX22 | Centre switch module in dash panel |
| E127 | Adjustable rear spoiler switch |
| E229 | Hazard warning lights button |
| E266 | Parking aid button |
| E581 | Park assist steering button |
| J446 | Parking aid control unit |
| J519 | Onboard supply control unit |
| J791 | Park assist steering control unit |
| K6 | Indicator lamp for hazard warning light |
| K136 | Parking aid warning lamp |
| K241 | Warning light for park assist steering |
| K242 | Rear spoiler position warning lamp |
| T20b | 20-pin connector |
| T73a | 73-pin connector |
| T73c | 73-pin connector |
| * | see applicable current flow diagram for parking aid (PDC) |
Wiring Diagram AUDI TT 2015 - Bonnet contact switch - Treble horn - Onboard supply control unit - Headlight washer system pump
| F266 | Bonnet contact switch |
| H2 | Treble horn |
| J400 | Wiper motor control unit |
| J413 | Horn relay |
| J519 | Onboard supply control unit |
| SB15 | Fuse 15 on fuse holder B |
| SB19 | Fuse 19 on fuse holder B |
| T2cd | 2-pin connector |
| T2ce | 2-pin connector |
| T2co | 2-pin connector |
| T4ab | 4-pin connector |
| T46a | 46-pin connector, black |
| V | Windscreen wiper motor |
| V11 | Headlight washer system pump |
| 85 | Earth connection 1, in engine compartment wiring harness |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 209 | Earth connection 6, in engine compartment wiring harness |
| 656 | Earth point, on right headlight |
| D103 | Connection 3 in engine compartment wiring harness |
| D235 | Connection (dual tone horn), in engine compartment wiring harness |
| * | Pre-wired component |
Wiring Diagram AUDI TT 2015 - Onboard supply control unit - Tank filler flap locking motor - Left washer jet heater element - Right washer jet heater element
| J519 | Onboard supply control unit |
| T2cf | 2-pin connector |
| T2cg | 2-pin connector |
| T2fg | 2-pin connector |
| T46a | 46-pin connector, black |
| T73a | 73-pin connector |
| V155 | Tank filler flap locking motor |
| Z20 | Left washer jet heater element |
| Z21 | Right washer jet heater element |
| 85 | Earth connection 1, in engine compartment wiring harness |
| 131 | Earth connection 2, in engine compartment wiring harness |
| D101 | Connection 1 in engine compartment wiring harness |
| * | Only models with heater elements for washer jets |
Wiring Diagram AUDI TT 2015 - Brake pedal switch - Clutch position sender - Onboard supply control unit
| F | Brake light switch |
| F63 | Brake pedal switch |
| G476 | Clutch position sender |
| J104 | ABS control unit |
| J271 | Main relay |
| J317 | Terminal 30 voltage supply relay |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| SB6 | Fuse 6 on fuse holder B |
| T4b | 4-pin connector |
| T5g | 5-pin connector |
| T17a | 17-pin connector, white |
| T17ex | 17-pin connector, red |
| T46b | 46-pin connector |
| T73c | 73-pin connector |
| TALU | Coupling point on left A-pillar, bottom |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 132 | Earth connection 3, in engine compartment wiring harness |
| 671 | Earth point 1, on front of left longitudinal member |
| D73 | Positive connection (54), in engine compartment wiring harness |
| D136 | Positive connection 2 (15a), in engine compartment wiring harness |
| E26 | Connection (selector position P/N), in Motronic wiring harness |
| * | According to equipment |
| *2 | Only models with manual gearbox |
| *3 | see applicable current flow diagram for engine |
Wiring Diagram AUDI TT 2015 - Bonnet contact switch 2 - Front right brake pad wear sender - Bass horn - Onboard supply control unit
| F329 | Bonnet contact switch 2 |
| G35 | Front right brake pad wear sender |
| H7 | Bass horn |
| J519 | Onboard supply control unit |
| T2ci | 2-pin connector |
| T2cn | 2-pin connector |
| T2cp | 2-pin connector |
| T46a | 46-pin connector, black |
| 132 | Earth connection 3, in engine compartment wiring harness |
| 201 | Earth connection 5, in engine compartment wiring harness |
| 317 | Earth connection 7, in engine compartment wiring harness |
| 363 | Earth connection 8, in engine compartment wiring harness |
| D53 | Connection (right brake wear indicator), in engine compartment wiring harness |
| * | Pre-wired component |
| *2 | Wiring colour depends on equipment |
Wiring Diagram AUDI TT 2015 - Onboard supply control unit
| F248 | Release button for rear lid lock cylinder |
| J519 | Onboard supply control unit |
| T4y | 4-pin connector |
| T17k | 17-pin connector |
| T17kx | 17-pin connector |
| T73a | 73-pin connector |
| THRL | Coupling point in luggage compartment, left |
| X | Number plate light |
| 98 | Earth connection, in rear lid wiring harness |
| 374 | Earth connection 9, in main wiring harness |
| 380 | Earth connection 15, in main wiring harness |
| 729 | Earth point, on left rear wheel housing |
| B132 | Connection (number plate lights), in interior wiring harness |
| * | Roadster |
Wiring Diagram AUDI TT 2015 - Reversing light switch - Onboard supply control unit - High-level brake light bulb - Windscreen and rear window washer pump
| C24 | Suppression filter |
| F4 | Reversing light switch |
| J519 | Onboard supply control unit |
| M25 | High-level brake light bulb |
| T2by | 2-pin connector |
| T2cd | 2-pin connector |
| T2cm | 2-pin connector |
| T2gn | 2-pin connector |
| T17a | 17-pin connector, white |
| T17ex | 17-pin connector, red |
| T17k | 17-pin connector |
| T17kx | 17-pin connector |
| T46a | 46-pin connector, black |
| T73a | 73-pin connector |
| TALU | Coupling point on left A-pillar, bottom |
| THRL | Coupling point in luggage compartment, left |
| V59 | Windscreen and rear window washer pump |
| B278 | Positive connection 2 (15a) in main wiring harness |
| B468 | Connection 4, in main wiring harness |
| D106 | Connection 4 in engine compartment wiring harness |
| * | Only models with manual gearbox |
| *2 | Roadster |
Wiring Diagram AUDI TT 2015 - Onboard supply control unit - Rear lid lock unit - Rear lid central locking motor
| F123 | Rear lid contact switch for anti-theft alarm |
| F124 | Contact switch in lock cylinder for rear lid, anti-theft alarm system and central locking system |
| J519 | Onboard supply control unit |
| T2ad | 2-pin connector |
| T2ae | 2-pin connector |
| T4z | 4-pin connector |
| T17k | 17-pin connector |
| T17kx | 17-pin connector |
| T73a | 73-pin connector |
| T73c | 73-pin connector |
| THRL | Coupling point in luggage compartment, left |
| VX25 | Rear lid lock unit |
| V53 | Rear lid central locking motor |
| W18 | Luggage compartment light on left |
| W35 | Right luggage compartment light |
| 368 | Earth connection 3, in main wiring harness |
| 375 | Earth connection 10, in main wiring harness |
| 730 | Earth point 1, on right rear wheel housing |
| B466 | Connection 2, in main wiring harness |
| * | Pre-wired component |
| *2 | Only models with additional lights |
| *3 | Roadster |
Wiring Diagram AUDI TT 2015 - Brake fluid level warning contact - Coolant shortage indicator switch - Ambient temperature sensor - Windscreen washer fluid level sender - Onboard supply control unit
| F34 | Brake fluid level warning contact |
| F66 | Coolant shortage indicator switch |
| G17 | Ambient temperature sensor |
| G33 | Windscreen washer fluid level sender |
| J519 | Onboard supply control unit |
| T2bz | 2-pin connector |
| T2ca | 2-pin connector |
| T2cb | 2-pin connector |
| T2cc | 2-pin connector |
| T46a | 46-pin connector, black |
| 327 | Earth connection (sender earth), in engine compartment wiring harness |
Wiring Diagram AUDI TT 2015 - Driver door control unit - Onboard supply control unit - Driver side turn signal repeater bulb - Driver door lock unit
| F2 | Driver door contact switch |
| J386 | Driver door control unit |
| J519 | Onboard supply control unit |
| L131 | Driver side turn signal repeater bulb |
| T16b | 16-pin connector |
| T20f | 20-pin connector |
| T27a | 27-pin connector |
| T27ax | 27-pin connector, black |
| T73a | 73-pin connector |
| TTVL | Coupling point on front left door |
| VX21 | Driver door lock unit |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
| * | see applicable current flow diagram for convenience system |
| *2 | From June 2015 |
Wiring Diagram AUDI TT 2015 - Heated rear window relay - Front passenger door control unit - Onboard supply control unit - Front passenger side turn signal repeater bulb - Front passenger door lock unit - Heated rear window
| C18 | Window aerial suppression filter |
| F3 | Front passenger door contact switch |
| J9 | Heated rear window relay |
| J387 | Front passenger door control unit |
| J519 | Onboard supply control unit |
| L132 | Front passenger side turn signal repeater bulb |
| S131 | Fuse 1 |
| T16c | 16-pin connector |
| T20g | 20-pin connector |
| T27b | 27-pin connector, black |
| T27bx | 27-pin connector, black |
| T73c | 73-pin connector |
| TTVR | Coupling point on front right door |
| VX22 | Front passenger door lock unit |
| Z1 | Heated rear window |
| 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 |
| * | see applicable current flow diagram for convenience system |
| *2 | Coupé |
| *3 | Earth supply via housing |
| *4 | From June 2015 |
Wiring Diagram AUDI TT 2015 - Terminal 15 voltage supply relay - Onboard supply control unit - Fuse holder C
| J329 | Terminal 15 voltage supply relay |
| J519 | Onboard supply control unit |
| SC | Fuse holder C |
| SC5 | Fuse 5 on fuse holder C |
| SC7 | Fuse 7 on fuse holder C |
| SC8 | Fuse 8 on fuse holder C |
| SC9 | Fuse 9 on fuse holder C |
| SC31 | Fuse 31 on fuse holder C |
| SC34 | Fuse 34 on fuse holder C |
| SC35 | Fuse 35 on fuse holder C |
| SC42 | Fuse 42 on fuse holder C |
| SC49 | Fuse 49 on fuse holder C |
| S133 | Fuse 3 |
| T17a | 17-pin connector, white |
| T17ex | 17-pin connector, red |
| T73a | 73-pin connector |
| T73c | 73-pin connector |
| TALU | Coupling point on left A-pillar, bottom |
| B281 | Positive connection 5 (15a) in main wiring harness |
| B316 | Positive connection 2 (30a) in main wiring harness |
Wiring Diagram AUDI TT 2015 - Onboard supply control unit - Fuse holder C
| J519 | Onboard supply control unit |
| SC | Fuse holder C |
| SC17 | Fuse 17 on fuse holder C |
| SC23 | Fuse 23 on fuse holder C |
| SC29 | Fuse 29 on fuse holder C |
| SC43 | Fuse 43 on fuse holder C |
| S132 | Fuse 2 |
| T73a | 73-pin connector |
| T73c | 73-pin connector |
AUDI TT 2015 Overview of control units in middle part of vehicle
| 1 - | Fresh air blower control unit -J126- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 2 - | Headlight range control unit -J431- |
| q | Fitting location, right-hand drive models → chapter |
| q | Connector assignment → anchor |
| 3 - | Entry and start authorisation control unit -J518- |
| q | Fitting location, USA → chapter |
| q | Connector assignment → anchor |
| 4 - | Control unit 1 for information electronics -J794- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| - Chip card reader control unit -J676- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 5 - | Electronically controlled damping control unit -J250- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 6 - | Seat occupied recognition control unit -J706- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 7 - | Front passenger door control unit -J387- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 8 - | Main beam assist control unit -J844- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 9 - | Front camera for driver assist systems -R242- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 10 - | Roof electronics control unit -J528- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 11 - | Control unit in dash panel insert -J285- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 12 - | Fuel pump control unit -J538- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 13 - | Steering column electronics control unit -J527- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 14 - | Driver door control unit -J386- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 15 - | Control unit for electronic steering column lock -J764- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 16 - | Entry and start authorisation control unit -J518- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 17 - | Digital sound package control unit -J525- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 18 - | Onboard supply control unit -J519- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 19 - | Parking aid control unit -J446- /park assist steering control unit -J791- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 20 - | Data bus diagnostic interface -J533- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 21 - | Headlight range control unit -J431- |
| q | Fitting location, left-hand drive models → chapter |
| q | Connector assignment → anchor |
| 22 - | Exhaust flap control unit -J883- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 23 - | Airbag control unit -J234- |
| q | Fitting location → chapter |
| 24 - | Climatronic control unit -J255- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| Overview of convertible roof control units, roadster |
| 1 - | Convertible roof lock motor -V223- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 2 - | Convertible roof latch open switch -F294- |
| q | Fitting location: Near convertible roof lock motor -V223- |
| 3 - | Convertible roof actuation motor 2 -V576- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 4 - | Cabriolet windbreak motor -V186- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 5 - | Convertible roof actuation motor -V82- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
| 6 - | Convertible roof stowed switch -F171- |
| q | Fitting location: Near convertible roof actuation motor -V82- |
| 6 - | Convertible roof front switch -F202- |
| q | Fitting location: Near convertible roof actuation motor -V82- |
| 7 - | Convertible roof latch closed switch -F295- |
| q | Fitting location: Near convertible roof lock motor -V223- |
| 8 - | Control unit for seat belt microphone -J886- |
| q | Fitting location → chapter |
| q | Connector assignment → anchor |
|
| 1 - | Fresh air blower control unit -J126- |
| A - | 2-pin connector -T2cq- , black |
| B - | 4-pin connector -T4ad- , black |
|
| -T4ad- (B) | Designation | -T2cq- (A) | Designation | |
| 1 | Terminal 31, to 43 earth point on right A-pillar, bottom | 1 | Fresh air blower -V2- | |
| 2 | 2 | Fresh air blower -V2- | ||
| 3 | Terminal 30, from fuse holder C -SC- fuse 3 -S133- | |||
| 4 | LIN bus, to B699 connection 4 (LIN bus) in main wiring harness Climatronic control unit -J255- |
|
| 1 - | Airbag control unit -J234- |
| A - | 90-pin connector -T90a- , yellow |
|
| 1 - | Electronically controlled damping control unit -J250- |
| A - | 47-pin connector -T47a- , black |
|
| -T47a- (A) | Designation | -T47a- (A) | Designation | |
| 1 | Terminal 15, from B277 positive connection 1 (15a) in main wiring harness onboard supply control unit -J519- | 25 | ||
| 2 | Rear left vehicle level sender -G76- | 26 | ||
| 3 | Front right vehicle level sender -G289- | 27 | Front right shock absorber damping adjustment valve -N337- | |
| 4 | 28 | Front right shock absorber damping adjustment valve -N337- | ||
| 5 | Rear right vehicle level sender -G77- | 29 | ||
| 6 | Front left vehicle level sender -G78- | 30 | Front left shock absorber damping adjustment valve -N336- | |
| 7 | 31 | Front left shock absorber damping adjustment valve -N336- | ||
| 8 | 32 | |||
| 9 | 33 | Rear left vehicle level sender -G76- | ||
| 10 | 34 | Front right vehicle level sender -G289- | ||
| 11 | 35 | Rear right vehicle level sender -G77- | ||
| 12 | 36 | Front left vehicle level sender -G78- | ||
| 13 | 37 | Chassis/dash panel insert CAN bus, low B677 connection 2 (chassis/dash panel insert CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | ||
| 14 | 38 | Chassis/dash panel insert CAN bus, high B673 connection 2 (chassis/dash panel insert CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | ||
| 15 | 39 | |||
| 16 | Terminal 31, to 683 earth point on front side member, right | 40 | ||
| 17 | Rear left vehicle level sender -G76- | 41 | ||
| 18 | Front right vehicle level sender -G289- | 42 | Rear left shock absorber damping adjustment valve -N338- | |
| 19 | 43 | Rear left shock absorber damping adjustment valve -N338- | ||
| 20 | Rear right vehicle level sender -G77- | 44 | ||
| 21 | Front left vehicle level sender -G78- | 45 | Rear right shock absorber damping adjustment valve -N339- | |
| 22 | 46 | Rear right shock absorber damping adjustment valve -N339- | ||
| 23 | 47 | Terminal 30, from fuse holder C -SC- fuse 3 -S133- | ||
| 24 |
|
| 1 - | Climatronic control unit -J255- |
| A - | 16-pin connector -T16d- , black |
| B - | 16-pin connector -T16e- , brown |
| C - | 20-pin connector -T20c- , black |
| D - | 12-pin connector -T12d- , black |
|
| -T16d- (A) | Designation | -T16e- (B) | Designation | |
| 1 | Left temperature flap control motor -V158- | 1 | 5V output, to L2 connection in air conditioning system wiring harness potentiometer for front air distribution flap control motor -G642- potentiometer for fresh air/air recirculation, air flow flap control motor -G644- potentiometer for left temperature flap control motor -G220- potentiometer for right temperature flap control motor -G221- potentiometer for defroster flap control motor -G135- | |
| 2 | Left temperature flap control motor -V158- | 2 | Potentiometer for left temperature flap control motor -G220- | |
| 3 | Defroster flap control motor -V107- | 3 | Potentiometer for right temperature flap control motor -G221- | |
| 4 | Defroster flap control motor -V107- | 4 | Potentiometer for defroster flap control motor -G135- | |
| 5 | Front air distribution flap control motor -V426- | 5 | Potentiometer for front air distribution flap control motor -G642- | |
| 6 | Front air distribution flap control motor -V426- | 6 | ||
| 7 | 7 | Potentiometer for fresh air/air recirculation, air flow flap control motor -G644- | ||
| 8 | 8 | Footwell vent temperature sender -G192- | ||
| 9 | Fresh air/air recirculation, air flow flap control motor -V425- | 9 | ||
| 10 | Fresh air/air recirculation, air flow flap control motor -V425- | 10 | ||
| 11 | Right temperature flap control motor -V159- | 11 | Evaporator output temperature sender -G263- | |
| 12 | Right temperature flap control motor -V159- | 12 | ||
| 13 | 13 | |||
| 14 | 14 | Earth, to 97 earth connection 1 in air conditioning system wiring harness potentiometer for front air distribution flap control motor -G642- potentiometer for fresh air/air recirculation, air flow flap control motor -G644- potentiometer for left temperature flap control motor -G220- potentiometer for right temperature flap control motor -G221- potentiometer for defroster flap control motor -G135- footwell vent temperature sender -G192- evaporator output temperature sender -G263- | ||
| 15 | 15 | |||
| 16 | 16 |
| -T20c- (C) | Designation | -T12d- (D) | Designation | |
| 1 | Sunlight penetration photosensor -G107- Sunlight penetration photosensor 2 -G134- | 1 | Dash panel temperature sensor -G56- | |
| 2 | 2 | Dash panel temperature sensor -G56- | ||
| 3 | Sunlight penetration photosensor -G107- Sunlight penetration photosensor 2 -G134- | 3 | Dash panel temperature sensor -G56- | |
| 4 | Terminal 30, to B469 connection 5 in main wiring harness operating and display unit 2 for air conditioning system -E775- operating and display unit 3 for air conditioning system -E776- operating and display unit 4 for air conditioning system -E777- operating and display unit 1 for air conditioning system -E774- operating and display unit 5 for air conditioning system -E778- | 4 | Dash panel temperature sensor -G56- | |
| 5 | Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | 5 | Potentiometer for front right defroster and chest vent shut-off flap control motor -G317- | |
| 6 | Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | 6 | Potentiometer for front right defroster and chest vent shut-off flap control motor -G317- | |
| 7 | Earth, to 379 earth connection 14 in main wiring harness operating and display unit 2 for air conditioning system -E775- operating and display unit 3 for air conditioning system -E776- operating and display unit 4 for air conditioning system -E777- operating and display unit 1 for air conditioning system -E774- operating and display unit 5 for air conditioning system -E778- | 7 | Defroster button -E782- | |
| 8 | 8 | Defroster warning lamp -K285- | ||
| 9 | 5V output, to B369 connection 1 (5V) in main wiring harness sunlight penetration photosensor -G107- sunlight penetration photosensor 2 -G134- control motor for right side window defroster flap -V410- control motor for right side window defroster flap -V409- | 9 | Heated rear window button -E230- | |
| 10 | Potentiometer for front left defroster and chest vent shut-off flap control motor -G318- | 10 | Heated rear window warning lamp -K10- | |
| 11 | Potentiometer for front left defroster and chest vent shut-off flap control motor -G318- | 11 | Earth, to 378 earth connection 13 in main wiring harness defroster button -E782- heated rear window button -E230- | |
| 12 | Potentiometer for front left defroster and chest vent shut-off flap control motor -G318- | 12 | Potentiometer for front right defroster and chest vent shut-off flap control motor -G317- | |
| 13 | Left vent temperature sender -G150- (LHD) Right vent temperature sender -G151- (RHD) | |||
| 14 | ||||
| 15 | LIN bus, to B710 connection 5 (LIN bus) in main wiring harness operating and display unit 2 for air conditioning system -E775- operating and display unit 3 for air conditioning system -E776- operating and display unit 4 for air conditioning system -E777- operating and display unit 1 for air conditioning system -E774- operating and display unit 5 for air conditioning system -E778- | |||
| 16 | LIN bus, to B699 connection 4 (LIN bus) in main wiring harness fresh air blower control unit -J126- D108 connection 6 in engine compartment wiring harness pressure sender for refrigerant circuit -G805- humidity sender in fresh air intake duct -G657- , air quality sensor -G238- | |||
| 17 | Sensors earth, to 377 earth connection 12 in main wiring harness | |||
| 18 | Air conditioner compressor regulating valve -N280- | |||
| 19 | Terminal 31, to 372 earth connection 7 in main wiring harness 687 earth point 1 on centre tunnel | |||
| 20 | Terminal 30, from fuse holder C -SC- fuse 3 -S133- |
|
| 1 - | Control unit in dash panel insert -J285- |
| A - | 4-pin connector -T4f- , grey, from control unit 1 for information electronics -J794- |
| B - | 2-pin connector -T2d- , MOST bus, black |
| C - | 32-pin connector -T32a- , grey |
|
| -T32a- (C) | Designation | -T32a- (C) | Designation | |
| 1 | Ring break diagnosis, B444 connection 1 (diagnosis) in main wiring harness | 17 | ||
| 2 | 18 | |||
| 3 | Comfort CAN bus, low to B406 connection 1 (comfort CAN bus, low) in main wiring harness B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | 19 | ||
| 4 | Comfort CAN bus, high to B397 connection 1 (comfort CAN bus, high) in main wiring harness B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | 20 | ||
| 5 | Sender earth, to 410 earth connection 1 (sender earth) in main wiring harness fuel gauge sender -G- fuel level sender 2 -G169- | 21 | ||
| 6 | Fuel gauge sender -G- | 22 | ||
| 7 | Fuel gauge sender -G- | 23 | ||
| 8 | Dash panel insert operating buttons -E493- | 24 | ||
| 9 | Fuel level sender 2 -G169- | 25 | ||
| 10 | Fuel level sender 2 -G169- | 26 | ||
| 11 | 27 | |||
| 12 | 28 | |||
| 13 | 29 | |||
| 14 | 30 | Terminal 31, to 376 earth connection 11 in main wiring harness 370 earth connection 5 in main wiring harness 687 earth point 1 on centre tunnel | ||
| 15 | Immobiliser reader coil -D2- | 31 | ||
| 16 | Immobiliser reader coil -D2- | 32 | Terminal 30, from fuse holder C -SC- |
|
| 1 - | Driver door control unit -J386- |
| A - | 6-pin connector -T6l- , black |
| B - | 20-pin connector -T20f- , black |
| C - | 16-pin connector -T16f- , black |
| D - | 32-pin connector -T32f- , blue |
|
| -T6l- (A) | Designation | -T6l- (A) | Designation | |
| 1 | 4 | |||
| 2 | 5 | |||
| 3 | Driver side window regulator motor -V147- | 6 | Driver side window regulator motor -V147- |
| -T20f- (B) | Designation | -T16f- (C) | Designation | -T32f- (D) | Designation | ||
| 1 | Driver door lock unit -VX21- Driver side contact switch in lock cylinder -F241- | 1 | 1 | Central locking SAFELOCK function warning lamp -K133- | |||
| 2 | Microswitch for lowering driver window -E621- | 2 | Driver side exterior mirror -VX4- Driver side automatic anti-dazzle exterior mirror -Y20- | 2 | |||
| 3 | 3 | Terminal 31, to Z1 connection 1 in mirror adjustment - mirror heating wiring harness driver side exterior mirror -VX4- heated exterior mirror on driver side -Z4- driver side turn signal repeater bulb -L131- | 3 | Driver side door interior handle illumination bulb -L146- | |||
| 4 | 4 | Terminal 31, mirror adjustment potentiometer driver side exterior mirror -VX4- | 4 | Terminal 58s, to R52 connection (58s) in driver side door wiring harness alarm system off switch -E217- operating unit for window regulator in driver door -E512- mirror adjustment switch -E43- driver side interior locking button for central locking system -E308- switch illumination bulb -L156- | |||
| 5 | Driver door lock unit -VX21- Driver door contact switch -F2- | 5 | Driver side exterior mirror -VX4- Driver side mirror adjustment motor -V17- Driver side mirror adjustment motor -V149- | 5 | Terminal 31, to 267 earth connection 2 in driver side door wiring harness | ||
| 6 | Driver door lock unit -VX21- Front left central locking actuator -F131- | 6 | Driver side exterior mirror -VX4- Driver side automatic anti-dazzle exterior mirror -Y20- | 6 | |||
| 7 | Terminal 31 CL, to driver door lock unit -VX21- driver door contact switch -F2- front left central locking actuator -F131- driver side contact switch in lock cylinder -F241- | 7 | Driver side exterior mirror -VX4- Driver side mirror adjustment motor -V17- | 7 | |||
| 8 | Mirror signal from B427 connection 1 (mirror signal) in main wiring harness automatic anti-dazzle interior mirror -Y7- | 8 | Driver side exterior mirror -VX4- Driver side mirror adjustment motor -V149- | 8 | R94 Connection 1 in front passenger side door wiring harness Driver door storage compartment illumination bulb -L160- Driver door ambient lighting bulb -L164- | ||
| 9 | 9 | Driver side exterior mirror -VX4- Driver side fold-in mirror motor -V121- | 9 | ||||
| 10 | 10 | Driver side exterior mirror -VX4- Driver side fold-in mirror motor -V121- | 10 | Alarm system off switch -E217- | |||
| 11 | Driver door lock unit -VX21- Driver door central locking SAFELOCK function motor -V161- Driver door central locking motor -V56- | 11 | Driver side exterior mirror -VX4- Driver side turn signal repeater bulb -L131- | 11 | |||
| 12 | Driver door lock unit -VX21- Driver door central locking SAFELOCK function motor -V161- | 12 | 12 | ||||
| 13 | Front passenger door lock unit -VX21- Driver door central locking motor -V56- | 13 | Driver side exterior mirror -VX4- Potentiometer for vertical adjustment of driver side mirror -G515- | 13 | Terminal 58d, to driver side interior locking button for central locking system -E308- | ||
| 14 | Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | 14 | Supply, mirror adjustment potentiometer Driver side exterior mirror -VX4- | 14 | |||
| 15 | Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | 15 | Driver side exterior mirror -VX4- heated exterior mirror on driver side -Z4- | 15 | |||
| 16 | 16 | Driver side exterior mirror -VX4- Potentiometer for horizontal adjustment of driver side mirror -G514- | 16 | Terminal 58, to R65 positive connection (58) in driver-side door wiring harness Driver side door warning lamp -W30- Front left entry light -W31- | |||
| 17 | Mirror signal from B428 connection 2 (mirror signal) in main wiring harness automatic anti-dazzle interior mirror -Y7- | 17 | |||||
| 18 | 18 | ||||||
| 19 | Terminal 30, from fuse holder C -SC- fuse 3 -S133- | 19 | |||||
| 20 | Terminal 31, to 206 earth connection in front passenger side door wiring harness 373 earth connection 8 in main wiring harness 43 earth point on right A-pillar, bottom | 20 | Alarm system off switch -E217- Interior monitoring switch -E183- | ||||
| 21 | Terminal 31, to 267 earth connection 2 in driver side door wiring harness | ||||||
| 22 | |||||||
| 23 | |||||||
| 24 | Mirror adjustment switch -E43- | ||||||
| 25 | Mirror adjustment switch -E43- Adjustment switch for mirror with fold-in feature -E168- Mirror adjustment changeover switch -E48- | ||||||
| 26 | |||||||
| 27 | |||||||
| 28 | Driver side interior locking button for central locking system -E308- | ||||||
| 29 | |||||||
| 30 | |||||||
| 31 | Operating unit for window regulator in driver door -E512- Front right window regulator switch in driver door -E81- | ||||||
| 32 | Operating unit for window regulator in driver door -E512- Front right window regulator switch -E40- |
|
| 1 - | Front passenger door control unit -J387- |
| A - | 6-pin connector -T6m- , black |
| B - | 20-pin connector -T20g- , black |
| C - | 16-pin connector -T16g- , black |
| D - | 32-pin connector -T32g- , blue |
|
| -T6m- (A) | Designation | -T6m- (A) | Designation | |
| 1 | 4 | |||
| 2 | 5 | |||
| 3 | Front passenger side window regulator motor -V148- | 6 | Front passenger side window regulator motor -V148- |
| -T20g- (B) | Designation | -T16g- (C) | Designation | -T32g- (D) | Designation | ||
| 1 | 1 | 1 | |||||
| 2 | Microswitch for lowering front passenger window -E622- | 2 | Front passenger side exterior mirror -VX5- Front passenger side automatic anti-dazzle exterior mirror -Y21- | 2 | |||
| 3 | 3 | Terminal 31, to Z2 connection 2 in mirror adjustment - mirror heating wiring harness front passenger side exterior mirror -VX5- heated exterior mirror on front passenger side -Z5- front passenger side turn signal repeater bulb -L132- | 3 | Front passenger side door interior handle illumination bulb -L147- | |||
| 4 | 4 | Terminal 31, mirror adjustment potentiometer front passenger side exterior mirror -VX5- | 4 | Terminal 58s, to R53 connection (58s) in front passenger side door wiring harness front passenger side interior locking button for central locking system -E309- window regulator switch in front passenger door -E107- switch illumination bulb -L156- | |||
| 5 | Front passenger door lock unit -VX22- Front passenger door contact switch -F3- | 5 | Front passenger side exterior mirror -VX5- Front passenger side mirror adjustment motor -V25- Front passenger side mirror adjustment motor -V150- | 5 | Terminal 31, to window regulator switch in front passenger door -E107- 268 earth connection 2 in front passenger side door wiring harness | ||
| 6 | Front passenger door lock unit -VX22- Front right central locking actuator -F133- | 6 | Front passenger side exterior mirror -VX5- Front passenger side automatic anti-dazzle exterior mirror -Y21- | 6 | |||
| 7 | Terminal 31 CL, to front passenger door lock unit -VX22- front passenger door contact switch -F3- front right central locking actuator -F133- | 7 | Front passenger side exterior mirror -VX5- Front passenger side mirror adjustment motor -V25- | 7 | |||
| 8 | Mirror signal from B427 connection 1 (mirror signal) in main wiring harness automatic anti-dazzle interior mirror -Y7- | 8 | Front passenger side exterior mirror -VX5- Front passenger side mirror adjustment motor -V150- | 8 | R98 connection 1 in front passenger side door wiring harness front passenger door storage compartment illumination bulb -L161- front passenger door ambient lighting bulb -L165- | ||
| 9 | 9 | Front passenger side exterior mirror -VX5- Front passenger side fold-in mirror motor -V122- | 9 | ||||
| 10 | 10 | Front passenger side exterior mirror -VX5- Front passenger side fold-in mirror motor -V122- | 10 | ||||
| 11 | Front passenger door lock unit -VX22- Front passenger door central locking SAFELOCK function motor -V162- Front passenger seat central locking motor -V57- | 11 | Front passenger side exterior mirror -VX5- Front passenger side turn signal repeater bulb -L132- | 11 | |||
| 12 | Front passenger door lock unit -VX22- Front passenger door central locking SAFELOCK function motor -V162- | 12 | 12 | ||||
| 13 | Front passenger door lock unit -VX22- Front passenger seat central locking motor -V57- | 13 | Front passenger side exterior mirror -VX5- Potentiometer for vertical adjustment of front passenger side mirror -G517- | 13 | Terminal 58d, to front passenger side interior locking button for central locking system -E309- | ||
| 14 | Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | 14 | Supply, mirror adjustment potentiometer Front passenger side exterior mirror -VX5- | 14 | |||
| 15 | Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | 15 | Front passenger side exterior mirror -VX5- Heated exterior mirror on front passenger side -Z5- | 15 | |||
| 16 | 16 | Front passenger side exterior mirror -VX5- Potentiometer for horizontal adjustment of front passenger side mirror -G516- | 16 | Terminal 58, to R67 positive connection (58) in front passenger side door wiring harness front right entry light -W32- front passenger side door warning lamp -W36- | |||
| 17 | Mirror signal from B428 connection 2 (mirror signal) in main wiring harness automatic anti-dazzle interior mirror -Y7- | 17 | |||||
| 18 | 18 | ||||||
| 19 | Terminal 30, from fuse holder C -SC- fuse 3 -S133- | 19 | |||||
| 20 | Terminal 31, to 206 earth connection in front passenger side door wiring harness 373 earth connection 8 in main wiring harness 43 earth point on right A-pillar, bottom | 20 | |||||
| 21 | |||||||
| 22 | |||||||
| 23 | |||||||
| 24 | |||||||
| 25 | |||||||
| 26 | |||||||
| 27 | |||||||
| 28 | |||||||
| 29 | |||||||
| 30 | |||||||
| 31 | |||||||
| 32 | Window regulator switch in front passenger door -E107- |
|
| 1 - | Headlight range control unit -J431- |
| A - | 26-pin connector -T26b- , black |
|
| -T26b- (A) | Designation | -T26b- (A) | Designation | |
| 1 | 14 | |||
| 2 | Extended CAN bus, high to E135 connection (extended CAN bus, high) in engine compartment wiring harness B108 connection 1 (extended CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | 15 | Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- | |
| 3 | Extended CAN bus, low to E136 connection (extended CAN bus, low) in engine compartment wiring harness B109 connection 1 (extended CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | 16 | Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- | |
| 4 | CAN bus, to D178 connection 2 (high bus) in engine compartment wiring harness front left headlight -MX1- /front right headlight -MX2- , LED, matrix beam | 17 | Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- | |
| 5 | CAN bus, to D179 connection 2 (low bus) in engine compartment wiring harness front left headlight -MX1- /front right headlight -MX2- , LED, matrix beam | 18 | Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- | |
| 6 | 19 | Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- | ||
| 7 | Rear left vehicle level sender -G76- | 20 | Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- | |
| 8 | Terminal 56, from D152 positive connection 1 (56b) in engine compartment wiring harness onboard supply control unit -J519- | 21 | Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- | |
| 9 | 22 | Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- | ||
| 10 | Rear left vehicle level sender -G76- | 23 | Terminal 15, from D200 positive connection 3 (15a) in engine compartment wiring harness fuse holder C -SC- | |
| 11 | Rear left vehicle level sender -G76- | 24 | Terminal 31, to 131 earth connection 2 in engine compartment wiring harness 132 earth connection 3 in engine compartment wiring harness 671 earth point 1 on front side member, left | |
| 12 | 25 | |||
| 13 | 26 |
|
| 1 - | Headlight range control unit -J431- |
| A - | 26-pin connector -T26b- , black |
|
| -T26b- (A) | Designation | -T26b- (A) | Designation | |
| 1 | 14 | |||
| 2 | Extended CAN bus, high to E135 connection (extended CAN bus, high) in engine compartment wiring harness B108 connection 1 (extended CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | 15 | Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- | |
| 3 | Extended CAN bus, low to E136 connection (extended CAN bus, low) in engine compartment wiring harness B109 connection 1 (extended CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | 16 | Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- | |
| 4 | CAN bus, to D178 connection 2 (high bus) in engine compartment wiring harness front left headlight -MX1- /front right headlight -MX2- , LED, matrix beam | 17 | Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- | |
| 5 | CAN bus, to D179 connection 2 (low bus) in engine compartment wiring harness front left headlight -MX1- /front right headlight -MX2- , LED, matrix beam | 18 | Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- | |
| 6 | 19 | Control unit for right daytime running light and side light -J861- Right headlight range control motor -V49- | ||
| 7 | Rear left vehicle level sender -G76- | 20 | Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- | |
| 8 | Terminal 56, from D152 positive connection 1 (56b) in engine compartment wiring harness onboard supply control unit -J519- | 21 | Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- | |
| 9 | 22 | Control unit for left daytime running light and side light -J860- Left headlight range control motor -V48- | ||
| 10 | Rear left vehicle level sender -G76- | 23 | Terminal 15, from D200 positive connection 3 (15a) in engine compartment wiring harness fuse holder C -SC- | |
| 11 | Rear left vehicle level sender -G76- | 24 | Terminal 31, to 131 earth connection 2 in engine compartment wiring harness 132 earth connection 3 in engine compartment wiring harness 671 earth point 1 on front side member, left | |
| 12 | 25 | |||
| 13 | 26 |
|
| 1 - | Parking aid control unit -J446- /park assist steering control unit -J791- |
| A - | 18-pin connector -T18a- , black |
| B - | 26-pin connector -T26a- , black |
|
| -T18a- (A) | Designation | -T18a- (A) | Designation | |
| 1 | 10 | Earth to 348 earth connection (parking aid) in front bumper wiring harness front left parking aid sender -G255- front centre left parking aid sender -G254- front centre right parking aid sender -G253- front right parking aid sender -G252- front left sender for park assist steering on left side of vehicle -G568- front right sender for park assist steering on right side of vehicle -G569- | ||
| 2 | Front left sender for park assist steering on left side of vehicle -G568- | 11 | Front left parking aid sender -G255- | |
| 3 | Front centre left parking aid sender -G254- | 12 | Front centre right parking aid sender -G253- | |
| 4 | Front right parking aid sender -G252- | 13 | Front right sender for park assist steering on right side of vehicle -G569- | |
| 5 | 14 | Voltage supply to X65 connection (parking aid) in front bumper wiring harness front left parking aid sender -G255- front centre left parking aid sender -G254- front centre right parking aid sender -G253- front right parking aid sender -G252- front left sender for park assist steering on left side of vehicle -G568- front right sender for park assist steering on right side of vehicle -G569- | ||
| 6 | 15 | |||
| 7 | 16 | |||
| 8 | 17 | |||
| 9 | 18 |
| -T26a- (B) | Designation | -T26a- (B) | Designation | |
| 1 | 14 | Terminal 15, from B279 positive connection 3 (15a) in main wiring harness fuse holder C -SC- | ||
| 2 | Front parking aid warning buzzer -H22- | 15 | Rear parking aid warning buzzer -H15- | |
| 3 | Park assist steering button -E581- | 16 | Parking aid button -E266- | |
| 4 | Warning light for park assist steering -K241- | 17 | Parking aid warning lamp -K136- | |
| 5 | 18 | Voltage supply to X68 connection (parking aid) in rear bumper wiring harness rear left park assist steering sender -G716- rear right park assist steering sender -G717- rear left parking aid sender -G203- rear centre left parking aid sender -G204- rear centre right parking aid sender -G205- rear right parking aid sender -G206- | ||
| 6 | Rear left parking aid sender -G203- | 19 | Rear left park assist steering sender -G716- | |
| 7 | Rear centre right parking aid sender -G205- | 20 | Rear centre left parking aid sender -G204- | |
| 8 | Rear right park assist steering sender -G717- | 21 | Rear right parking aid sender -G206- | |
| 9 | Rear parking aid warning buzzer -H15- | 22 | Earth to 352 earth connection (parking aid) in rear bumper wiring harness rear left park assist steering sender -G716- rear right park assist steering sender -G717- rear left parking aid sender -G203- rear centre left parking aid sender -G204- rear centre right parking aid sender -G205- rear right parking aid sender -G206- | |
| 10 | Front parking aid warning buzzer -H22- | 23 | Chassis/dash panel insert CAN bus, low B677 connection 2 (chassis/dash panel insert CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | |
| 11 | 24 | Chassis/dash panel insert CAN bus, high B673 connection 2 (chassis/dash panel insert CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | ||
| 12 | 25 | |||
| 13 | Terminal 31, to 372 earth connection 7 in main wiring harness 687 earth point 1 on centre tunnel | 26 |
|
| 1 - | Entry and start authorisation control unit -J518- |
| A - | 40-pin connector -T40a- , black |
|
| -T40a- (A) | Designation | -T40a- (A) | Designation | |
| 1 | 21 | Rear right aerial for entry and start authorisation -R166- | ||
| 2 | 22 | Rear left aerial for entry and start authorisation -R165- | ||
| 3 | 23 | Luggage compartment aerial for entry and start system -R137- | ||
| 4 | 24 | Rear left aerial for entry and start authorisation -R165- | ||
| 5 | Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | 25 | ||
| 6 | Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | 26 | Onboard supply control unit -J519- | |
| 7 | Entry and start authorisation button -E408- | 27 | Onboard supply control unit -J519- | |
| 8 | Operating unit in front of centre console -E461- Entry and start authorisation button -E408- | 28 | ||
| 9 | 29 | |||
| 10 | 30 | Terminal 30, from fuse holder C -SC- fuse 2 -S132- | ||
| 11 | from coupling point on front left door -TTVL- contact sensor for front left exterior door handle -G605- | 31 | Entry and start authorisation aerial -R249- | |
| 12 | from coupling point on front right door -TTVR- driver door exterior handle contact sensor -G415- | 32 | Rear right aerial for entry and start authorisation -R166- | |
| 13 | 33 | Luggage compartment aerial for entry and start system -R137- | ||
| 14 | 34 | Entry and start authorisation aerial -R249- | ||
| 15 | to coupling point on left A-pillar, bottom -TALU- engine control unit -J623- | 35 | Onboard supply control unit -J519- | |
| 16 | 36 | Interior aerial 1 for entry and start system -R138- | ||
| 17 | Terminal 31, to 372 earth connection 7 in main wiring harness 687 earth point 1 on centre tunnel | 37 | Interior aerial 2 for entry and start system -R139- | |
| 18 | 38 | Interior aerial 1 for entry and start system -R138- | ||
| 19 | Entry and start authorisation button -E408- | 39 | Interior aerial 2 for entry and start system -R139- | |
| 20 | 40 | Onboard supply control unit -J519- |
|
| 1 - | Entry and start authorisation control unit -J518- |
| A - | 40-pin connector -T40a- , black |
|
| -T40a- (A) | Designation | -T40a- (A) | Designation | |
| 1 | 21 | Rear right aerial for entry and start authorisation -R166- | ||
| 2 | 22 | Rear left aerial for entry and start authorisation -R165- | ||
| 3 | 23 | Luggage compartment aerial for entry and start system -R137- | ||
| 4 | 24 | Rear left aerial for entry and start authorisation -R165- | ||
| 5 | Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | 25 | ||
| 6 | Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | 26 | Onboard supply control unit -J519- | |
| 7 | Entry and start authorisation button -E408- | 27 | Onboard supply control unit -J519- | |
| 8 | Operating unit in front of centre console -E461- Entry and start authorisation button -E408- | 28 | ||
| 9 | 29 | |||
| 10 | 30 | Terminal 30, from fuse holder C -SC- fuse 2 -S132- | ||
| 11 | from coupling point on front left door -TTVL- contact sensor for front left exterior door handle -G605- | 31 | Entry and start authorisation aerial -R249- | |
| 12 | from coupling point on front right door -TTVR- driver door exterior handle contact sensor -G415- | 32 | Rear right aerial for entry and start authorisation -R166- | |
| 13 | 33 | Luggage compartment aerial for entry and start system -R137- | ||
| 14 | 34 | Entry and start authorisation aerial -R249- | ||
| 15 | to coupling point on left A-pillar, bottom -TALU- engine control unit -J623- | 35 | Onboard supply control unit -J519- | |
| 16 | 36 | Interior aerial 1 for entry and start system -R138- | ||
| 17 | Terminal 31, to 372 earth connection 7 in main wiring harness 687 earth point 1 on centre tunnel | 37 | Interior aerial 2 for entry and start system -R139- | |
| 18 | 38 | Interior aerial 1 for entry and start system -R138- | ||
| 19 | Entry and start authorisation button -E408- | 39 | Interior aerial 2 for entry and start system -R139- | |
| 20 | 40 | Onboard supply control unit -J519- |
|
| 1 - | Onboard supply control unit -J519- |
| A - | 73-pin connector -T73a- , black |
| B - | 46-pin connector -T46a- , black |
| C - | 73-pin connector -T73c- , black |
|
| -T73a- (A) | Designation | -T73a- (A) | Designation | -T73a- (A) | Designation | ||
| 1 | 26 | 51 | |||||
| 2 | 27 | 52 | Rear lid lock unit -VX25- Rear lid contact switch for anti-theft alarm -F123- | ||||
| 3 | Tank filler flap locking motor -V155- | 28 | LIN bus, to B698 connection 3 (LIN bus) in main wiring harness light switch -E1- humidity sender -G355- light and rain sensor -G397- | 53 | Rear lid lock unit -VX25- Contact switch in lock cylinder for rear lid, anti-theft alarm system and central locking system -F124- | ||
| 4 | Tank filler flap locking motor -V155- | 29 | Light switch -E1- | 54 | Entry and start authorisation control unit -J518- | ||
| 5 | 30 | 55 | |||||
| 6 | 31 | 56 | |||||
| 7 | 32 | Release button for rear lid lock cylinder -F248- | 57 | B468 connection 4 in main wiring harness suppression filter -C24- additional brake light bulb -M25- | |||
| 8 | 33 | 58 | |||||
| 9 | Rear lid lock unit -VX25- Rear lid central locking motor -V53- | 34 | 59 | B132 connection (licence plate light) in interior wiring harness licence plate light -X- | |||
| 10 | 35 | 60 | Left brake light bulb -M9- | ||||
| 11 | Reversing light, to B107 connection (reversing light) in main wiring harness | 36 | 61 | ||||
| 12 | Terminal 31, to 366 earth connection 1 in main wiring harness 367 earth connection 2 in main wiring harness 639 earth point on left A-pillar | 37 | 62 | ||||
| 13 | Terminal 15, to terminal 15 voltage supply relay -J329- | 38 | 63 | Terminal 31, to 366 earth connection 1 in main wiring harness 367 earth connection 2 in main wiring harness 639 earth point on left A-pillar | |||
| 14 | Terminal 15, to B277 positive connection 1 (15a) in main wiring harness | 39 | 64 | Right reversing light bulb -M17- | |||
| 15 | LIN bus, to B528 connection 1 (LIN bus) in main wiring harness | 40 | 65 | Right tail light bulb -M2- | |||
| 16 | Comfort CAN bus, high to B397 connection 1 (comfort CAN bus, high) in main wiring harness B398 connection 2 (comfort CAN bus, high) in main wiring harness | 41 | 66 | Terminal 30, from fuse holder C -SC- fuse 2 -S132- | |||
| 17 | Comfort CAN bus, low to B406 connection 1 (comfort CAN bus, low) in main wiring harness B398 connection 2 (comfort CAN bus, low) in main wiring harness | 42 | 67 | ||||
| 18 | 43 | 68 | |||||
| 19 | 44 | Entry and start authorisation control unit -J518- | 69 | ||||
| 20 | Powertrain CAN bus, low to B390 connection 1 (powertrain CAN bus, low) in main wiring harness | 45 | 70 | ||||
| 21 | Powertrain CAN bus, high to B383 connection 1 (powertrain CAN bus, high) in main wiring harness | 46 | 71 | Rear left turn signal bulb -M6- | |||
| 22 | 47 | Entry and start authorisation control unit -J518- | 72 | Rear left fog light bulb -L46- | |||
| 23 | 48 | 73 | Terminal 30, from fuse holder C -SC- fuse 3 -S133- | ||||
| 24 | 49 | Centre dash panel switch module -EX22- Adjustable rear spoiler switch -E127- | |||||
| 25 | 50 |
| -T46a- (B) | Designation | -T46a- (B) | Designation | |
| 1 | Right dipped beam | 24 | Horn relay -J413- | |
| 2 | Right main beam | 25 | ||
| 3 | 26 | |||
| 4 | 27 | Ambient temperature sensor -G17- | ||
| 5 | Right fog light | 28 | Windscreen washer fluid level sender -G33- | |
| 6 | Left cornering light | 29 | ||
| 7 | Windscreen and rear window washer pump -V59- | 30 | LIN bus, to windscreen wiper motor -V- | |
| 8 | 31 | |||
| 9 | D101 connection 1 in engine compartment wiring harness left washer jet heater element -Z20- right washer jet heater element -Z21- | 32 | Control unit for left daytime running light and side light -J860- | |
| 10 | 33 | |||
| 11 | Reversing light switch -F4- | 34 | ||
| 12 | D53 connection (right brake pad wear indicator) in engine compartment wiring harness front right brake pad wear sender -G35- | 35 | ||
| 13 | Brake fluid level warning contact -F34- | 36 | ||
| 14 | D103 connection 3 in engine compartment wiring harness bonnet contact switch -F266- bonnet contact switch 2 -F329- | 37 | ||
| 15 | 38 | |||
| 16 | Coolant shortage indicator switch -F66- | 39 | Left main beam, output module 1 for left LED headlight -A31- | |
| 17 | 40 | |||
| 18 | 41 | |||
| 19 | Sender earth to 327 earth connection (sender earth) in engine compartment wiring harness | 42 | ||
| 20 | Front left turn signal, front left turn signal bulb -M5- | 43 | ||
| 21 | 44 | Right cornering light | ||
| 22 | 45 | Left fog light | ||
| 23 | 46 | Headlight washer system pump -V11- |
| -T73c- (C) | Designation | -T73c- (C) | Designation | -T73c- (C) | Designation | ||
| 1 | Terminal 30, from fuse holder C -SC- fuse 3 -S133- | 26 | 51 | Centre dash panel switch module -EX22- Start/Stop operation warning lamp -K259- | |||
| 2 | 27 | 52 | |||||
| 3 | 28 | 53 | |||||
| 4 | 29 | 54 | |||||
| 5 | Left dipped beam, to D152 positive connection 1 (56b) in engine compartment wiring harness | 30 | 55 | ||||
| 6 | Rear right fog light bulb -L47- | 31 | Rear right turn signal bulb -M8- | 56 | |||
| 7 | 32 | 57 | |||||
| 8 | Right brake light bulb -M10- | 33 | 58 | Terminal 54, from D73 positive connection (54) in engine compartment wiring harness brake light switch -F- brake pedal switch -F63- | |||
| 9 | B466 connection 2 in main wiring harness luggage compartment light on left -W18- luggage compartment light on right -W35- | 34 | Centre dash panel switch module -EX22- Driving mode selection button -E735- | 59 | |||
| 10 | Left tail light bulb -M4- | 35 | 60 | Centre dash panel switch module -EX22- Start/Stop operation button -E693- | |||
| 11 | 36 | 61 | |||||
| 12 | Terminal 30g, to fuse holder C -SC- B559 positive connection 1 (30g) in main wiring harness glove compartment light switch -E26- front roof module -WX3- | 37 | 62 | Terminal 58s, to B731 connection 1 (58s) in main wiring harness | |||
| 13 | 38 | 63 | Terminal 31, to 366 earth connection 1 in main wiring harness 367 earth connection 2 in main wiring harness 639 earth point on left A-pillar | ||||
| 14 | Entry and start authorisation control unit -J518- | 39 | 64 | ||||
| 15 | 40 | 65 | |||||
| 16 | Terminal 31, to 683 earth point on front side member, right | 41 | 66 | ||||
| 17 | 42 | Centre dash panel switch module -EX22- Hazard warning lights button -E229- | 67 | Front roof module -WX3- | |||
| 18 | 43 | 68 | |||||
| 19 | 44 | 69 | |||||
| 20 | 45 | 70 | |||||
| 21 | 46 | 71 | |||||
| 22 | 47 | Centre dash panel switch module -EX22- Rear spoiler position warning lamp -K242- | 72 | ||||
| 23 | 48 | Centre dash panel switch module -EX22- Indicator lamp for hazard warning light -K6- | 73 | Terminal 30, from fuse holder C -SC- fuse 2 -S132- | |||
| 24 | Heated rear window relay -J9- | 49 | |||||
| 25 | 50 |
|
| 1 - | Digital sound package control unit -J525- |
| A - | 2-pin connector -T2fb- , MOST bus, black |
| B - | 38-pin connector -T38- , black |
|
| -T38- (B) | Designation | -T38- (B) | Designation | |
| 1 | Terminal 30, from fuse holder C -SC- fuse 3 -S133- | 20 | Front right bass loudspeaker -R23- | |
| 2 | Terminal 31, to 639 earth point on left A-pillar | 21 | Front right bass loudspeaker -R23- | |
| 3 | 22 | Front right bass loudspeaker -R23- | ||
| 4 | Front left mid-range loudspeaker -R103- | 23 | Front right treble loudspeaker -R22- | |
| 5 | Front left mid-range loudspeaker -R103- | 24 | Front left treble loudspeaker -R20- | |
| 6 | Centre loudspeaker 2 -R219- | 25 | Rear left treble loudspeaker -R14- | |
| 7 | Front left bass loudspeaker -R21- | 26 | Rear right treble loudspeaker -R16- | |
| 8 | Front left bass loudspeaker -R21- | 27 | ||
| 9 | Front left bass loudspeaker -R21- | 28 | Centre loudspeaker -R208- | |
| 10 | Front left bass loudspeaker -R21- | 29 | Internal microphone -R74- Microphone unit in front roof module -R164- | |
| 11 | Rear left bass loudspeaker -R15- | 30 | ||
| 12 | Rear left bass loudspeaker -R15- | 31 | Front right treble loudspeaker -R22- | |
| 13 | Rear right bass loudspeaker -R17- | 32 | Front left treble loudspeaker -R20- | |
| 14 | Rear right bass loudspeaker -R17- | 33 | Rear left treble loudspeaker -R14- | |
| 15 | 34 | Rear right treble loudspeaker -R16- | ||
| 16 | Front right mid-range loudspeaker -R104- | 35 | ||
| 17 | Front right mid-range loudspeaker -R104- | 36 | Centre loudspeaker -R208- | |
| 18 | Centre loudspeaker 2 -R219- | 37 | Internal microphone -R74- Microphone unit in front roof module -R164- | |
| 19 | Front right bass loudspeaker -R23- | 38 | Ring break diagnosis, B444 connection 1 (diagnosis) in main wiring harness |
|
| 1 - | Steering column electronics control unit -J527- |
| A - | 17-pin connector -T17a- , yellow |
|
| -T17a- (A) | Designation | -T17a- (A) | Designation | |
| 1 | Terminal 30, from fuse holder C -SC- | 10 | ||
| 2 | LIN bus, to data bus diagnostic interface -J533- | 11 | ||
| 3 | Comfort CAN bus, high to B397 connection 1 (comfort CAN bus, high) in main wiring harness B398 connection 2 (comfort CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | 12 | ||
| 4 | Comfort CAN bus, low to B406 connection 1 (comfort CAN bus, low) in main wiring harness B407 connection 2 (comfort CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | 13 | ||
| 5 | 14 | |||
| 6 | Selector lever -E313- Selector lever sensors control unit -J587- | 15 | ||
| 7 | Engine control unit -J623- | 16 | ||
| 8 | 17 | Terminal 31, to 367 earth connection 2 in main wiring harness 639 earth point on left A-pillar | ||
| 9 |
|
| Fitting location, roof electronics control unit -J528- |
| Fitting location |
| In front roof module -WX3- . |
| 1 - | Roof electronics control unit -J528- |
| A - | 4-pin connector -T4bg- , black |
| q | for microphone unit in front roof module -R164- |
| B - | 3-pin connector -T3b- , black |
| q | for garage door operating unit -E284- |
| C - | 4-pin connector -T4d- , black |
| q | for anti-theft alarm sensor -G578- |
| D - | 12-pin connector -T12c- , black |
| q | for roof electronics control unit -J528- |
| Connector assignment of roof electronics control unit -J528- |
| -T12c- (D) | Designation | -T12c- (D) | Designation | |
| 1 | 7 | Automatic anti-dazzle interior mirror -Y7- | ||
| 2 | 8 | Terminal 30, from fuse holder C -SC- | ||
| 3 | 9 | Onboard supply control unit -J519- | ||
| 4 | Airbag control unit -J234- | 10 | Terminal 31, to 639 earth point on left A-pillar | |
| 5 | Airbag control unit -J234- | 11 | Terminal 58s, to B731 connection 1 (58s) in main wiring harness | |
| 6 | Airbag control unit -J234- | 12 | Terminal 30, from B559 positive connection 1 (30g) in main wiring harness |
| Back to overview → chapter . |
|
| 1 - | Data bus diagnostic interface -J533- |
| A - | 20-pin connector -T20a- , red |
|
| -T20a- (A) | Designation | -T20a- (A) | Designation | |
| 1 | Terminal 30, from terminal 15 voltage supply relay -J329- | 11 | Terminal 31, to 376 earth connection 11 in main wiring harness 370 earth connection 5 in main wiring harness 639 earth point on left A-pillar | |
| 2 | 12 | |||
| 3 | LIN bus, to B711 connection 6 (LIN bus) in main wiring harness | 13 | LIN bus, to steering column electronics control unit -J527- | |
| 4 | 14 | Terminal 15, from B277 positive connection 1 (15a) in main wiring harness onboard supply control unit -J519- | ||
| 5 | Comfort CAN bus, low to B407 connection 2 (comfort CAN bus, low) in main wiring harness | 15 | Comfort CAN bus, high to B398 connection 2 (comfort CAN bus, high) in main wiring harness | |
| 6 | Powertrain CAN bus, low to B390 connection 1 (powertrain CAN bus, low) in main wiring harness | 16 | Powertrain CAN bus, high to B383 connection 1 (powertrain CAN bus, high) in main wiring harness | |
| 7 | Extended CAN bus, low to B109 connection 1 (extended CAN bus, low) in main wiring harness | 17 | Extended CAN bus, high to B108 connection 1 (extended CAN bus, high) in main wiring harness | |
| 8 | Chassis/dash panel insert CAN bus, low B677 connection 2 (chassis/dash panel insert CAN bus, low) in main wiring harness | 18 | Chassis/dash panel insert CAN bus, high B673 connection 2 (chassis/dash panel insert CAN bus, high) in main wiring harness | |
| 9 | Diagnosis CAN bus, low to B714 connection 1 (diagnosis CAN bus, low) in main wiring harness diagnostic connection -U31- | 19 | Diagnosis CAN bus, high to B713 connection 1 (diagnosis CAN bus, high) in main wiring harness diagnostic connection -U31- | |
| 10 | Infotainment CAN bus, low to B421 connection 1 (infotainment CAN bus, low) in main wiring harness | 20 | Infotainment CAN bus, high to B415 connection 1 (infotainment CAN bus, high) in main wiring harness |
|
| 1 - | Fuel pump control unit -J538- |
| q | with fuel gauge sender -G- , fuel system pressurisation pump -G6- , fuel gauge sender 2 -G169- |
| A - | 5-pin connector -T5o- , black |
| q | models with petrol engine only |
| B - | 6-pin connector -T6i- , black |
| q | models with diesel engine only |
|
| -T5o- (A) | Designation |
| 1 | Fuel system pressurisation pump -G6- |
| 2 | Fuel system pressurisation pump -G6- |
| 3 | Terminal 30, from fuse holder B -SB- |
| 4 | Terminal 31, to 375 earth connection 10 in main wiring harness 730 earth point 1 on rear right wheel housing |
| 5 | Engine control unit -J623- |
|
| -T6i- (B) | Designation |
| 1 | Fuel system pressurisation pump -G6- |
| 2 | Fuel system pressurisation pump -G6- |
| 3 | Fuel system pressurisation pump -G6- |
| 4 | Terminal 31, to 375 earth connection 10 in main wiring harness 730 earth point 1 on rear right wheel housing |
| 5 | Terminal 30, from fuse holder B -SB- |
| 6 | Engine control unit -J623- |
|
| 1 - | Chip card reader control unit -J676- |
| A - | 4-pin connector -T4ca- , brown |
| B - | 10-pin connector -T10u- , black |
| C - | 2-pin connector -T2gy- , yellow |
|
| -T4ca- (A) | Designation | -T2gy- (C) | Designation | |
| 1 | USB connection holder -R193- | 1 | Dedicated short-range communication aerial -R269- | |
| 2 | USB connection holder -R193- | 2 | Dedicated short-range communication aerial -R269- | |
| 3 | USB connection holder -R193- | |||
| 4 | USB connection holder -R193- | |||
| 5 | USB connection holder -R193- Screen earth |
| -T10u- (B) | Designation | -T10u- (B) | Designation | |
| 1 | Traffic data aerial -R173- | 6 | LIN bus, to B699 connection 4 (LIN bus) in main wiring harness Climatronic control unit -J255- | |
| 2 | Traffic data aerial -R173- | 7 | Traffic data aerial -R173- | |
| 3 | Traffic data aerial -R173- | 8 | Traffic data aerial -R173- | |
| 4 | Traffic data aerial -R173- | 9 | Terminal 30, from B318 positive connection 4 (30a) in main wiring harness fuse holder C -SC- | |
| 5 | 10 | Terminal 31, to 477 earth connection (audio) in main wiring harness 687 earth point 1 on centre tunnel |
|
| Fitting location, seat occupied recognition control unit -J706- |
| Fitting location |
| under front passenger seat. |
| 1 - | Seat occupied recognition control unit -J706- |
| A - | 10-pin connector -T10v- |
| B - | 3-pin connector -T3ad- |
| Connector assignment, seat occupied recognition control unit -J706- |
| -T10v- (A) | Designation | -T3ad- (B) | Designation | |
| 1 | 1 | Terminal 15, from fuse holder C -SC- | ||
| 2 | Screen earth | 2 | Airbag control unit -J234- | |
| 3 | Terminal 31, to 35 earth point under front passenger seat | 3 | Terminal 31, to 95 earth connection 1 in seat adjustment wiring harness | |
| 4 | Terminal 31, to 136 earth connection 2 in seat heating wiring harness | |||
| 5 | ||||
| 6 | Heated front passenger seat -Z8- | |||
| 7 | ||||
| 8 | Heated front passenger seat -Z8- | |||
| 9 | ||||
| 10 | Positive supply, from O14 connection 3 in seat heating wiring harness |
| Back to overview → chapter . |
| Fitting location, control unit for electronic steering column lock -J764- |
| Fitting location |
| On top of the steering column. |
| 1 - | Control unit for electronic steering column lock -J764- |
| A - | 4-pin connector -T4l- |
|
| -T4l- (A) | Designation |
| 1 | Comfort high CAN bus, to B397 connection 1 (comfort high CAN bus) in main wiring harness |
| 2 | Comfort low CAN bus to B406 connection 1 (comfort low CAN bus) in main wiring harness |
| 3 | Terminal 30, from fuse holder C -SC- |
| 4 | Terminal 31, to 639 earth point on left A-pillar |
|
| 1 - | Control unit 1 for information electronics -J794- |
| A - | 2-pin connector -T2gg- , aerial connection, LTE, Bordeaux, LTE aerial 1 -R297- |
| B - | 2-pin connector -T2gd- , aerial connection, DAB, black, aerial amplifier 2 -R111- , digital radio aerial -R183- |
| B - | 2-pin connector -T2gd- , aerial connection, SAT, brown,aerial for satellite tuner -R172- , USA only |
| C - | Quad connector |
| D - | 8-pin connector -T8q- , black |
| E - | 12-pin connector -T12m- , grey |
| F - | 12-pin connector -T12n- , green |
| G - | 12-pin connector -T12i- , blue |
| H - | 8-pin connector -T8p- , brown |
| J - | 2-pin connector -T2ez- , MOST bus, black |
| K - | 4-pin connector -T4aa- , grey, display unit for front information display and operating unit control unit -J685- |
| L - | 4-pin connector -T4bb- , brown, USB connection holder -R193- |
| M - | 4-pin connector -T4bl- , aerial connection, AM/FM, white, aerial amplifier -R24- |
| N - | 2-pin connector -T2ge- , aerial connection, GPS, blue, roof aerial -R216- , GPS aerial -R50- |
| O - | 2-pin connector -T2gf- , aerial connection, LTE, Bordeaux, LTE aerial 2 -R306- |
|
| -T8g- (D) | Designation | -T8p- (H) | Designation | |
| 9 | 1 | Rear right treble loudspeaker -R16- Rear right bass loudspeaker -R17- | ||
| 10 | Centre loudspeaker -R208- | 2 | Front right treble loudspeaker -R22- Front right bass loudspeaker -R23- | |
| 11 | 3 | Front left treble loudspeaker -R20- Front left bass loudspeaker -R21- | ||
| 12 | 4 | Rear left treble loudspeaker -R14- Rear left bass loudspeaker -R15- | ||
| 13 | 5 | Rear right treble loudspeaker -R16- Rear right bass loudspeaker -R17- | ||
| 14 | Centre loudspeaker -R208- | 6 | Front right treble loudspeaker -R22- Front right bass loudspeaker -R23- | |
| 17 | Terminal 31, to 383 earth connection 18 in main wiring harness 687 earth point 1 on centre tunnel | 7 | Front left treble loudspeaker -R20- Front left bass loudspeaker -R21- | |
| 18 | Terminal 30, from fuse holder C -SC- | 8 | Rear left treble loudspeaker -R14- Rear left bass loudspeaker -R15- |
| -T12m- (E) | Designation | -T12n- (F) | Designation | |
| 1 | Display and operation CAN bus, low B751 connection 1 (display and operation CAN bus, low) display unit for front information display and operating unit control unit -J685- multimedia system operating unit -E380- | 1 | Connection for external audio sources -R199- | |
| 2 | Multimedia system operating unit -E380- | 2 | Connection for external audio sources -R199- | |
| 3 | Ring circuit break diagnostic wire B444 connection 1 (diagnosis) in main wiring harness | 3 | Connection for external audio sources -R199- | |
| 4 | 4 | |||
| 5 | Telephone bracket -R126- B478 connection 14 in main wiring harness | 5 | ||
| 6 | Infotainment CAN bus, high B415 connection 1 (infotainment CAN bus, high) in main wiring harness | 6 | ||
| 7 | Display and operation CAN bus, high B750 connection 1 (display and operation CAN bus, high) display unit for front information display and operating unit control unit -J685- multimedia system operating unit -E380- | 7 | Connection for external audio sources -R199- | |
| 8 | Multimedia system operating unit -E380- | 8 | Screen earth, connection for external audio sources -R199- | |
| 9 | 9 | |||
| 10 | 10 | |||
| 11 | Telephone bracket -R126- | 11 | ||
| 12 | Infotainment CAN bus, low B421 connection 1 (infotainment CAN bus, low) in main wiring harness | 12 |
| -T12i- (G) | Designation | -T12i- (G) | Designation | |
| 1 | Telephone microphone -R38- , coupé Belt microphone control unit -J886- , roadster | 7 | Telephone microphone -R38- , coupé Screen earth, control unit for seat belt microphone -J886- , roadster | |
| 2 | Screen earth, control unit for seat belt microphone -J886- , roadster | 8 | Control unit for seat belt microphone -J886- , roadster | |
| 3 | 9 | |||
| 4 | 10 | |||
| 5 | 11 | |||
| 6 | Reversing camera system control unit -J772- | 12 | Reversing camera system control unit -J772- |
|
| Fitting location Main beam assist control unit -J844- |
| Fitting location |
| On interior mirror. |
| 1 - | Main beam assist control unit -J844- |
| A - | 8-pin connector -T8a- , black |
| Connector assignment of main beam assist control unit -J844- |
| -T8a- (A) | Designation | -T8a- (A) | Designation | |
| 1 | Terminal 15, from fuse holder C -SC- | 5 | Mirror dimming signal line, to B428 connection 2 (mirror signal) in main wiring harness | |
| 2 | Terminal 31, to 639 earth point on left A-pillar | 6 | ||
| 3 | Extended high CAN bus, to B108 connection 1 (extended high CAN bus) in main wiring harness | 7 | ||
| 4 | Mirror dimming signal line, to B427 connection 1 (mirror signal) in main wiring harness | 8 | Extended CAN bus, low, from B109 connection 1 (extended CAN bus, low) in main wiring harness |
| Back to overview → chapter . |
|
| 1 - | Exhaust flap control unit -J883- |
| A - | 5-pin connector -T5h- , black |
|
| -T5h- (A) | Designation |
| 1 | D109 connection 7 in engine compartment wiring harness engine control unit -J623- |
| 2 | Engine control unit -J623- |
| 3 | 419 earth connection 11 in engine compartment wiring harness engine control unit -J623- |
| 4 | Engine control unit -J623- |
| 5 | Engine control unit -J623- |
|
| 1 - | Control unit for seat belt microphone -J886- |
| A - | 32-pin connector -T32d- , black |
|
| -T32d- (A) | Designation | -T32d- (A) | Designation | |
| 1 | Microphone unit in front roof module -R164- Telephone microphone -R38- | 17 | Microphone unit in front roof module -R164- Telephone microphone -R38- | |
| 2 | Microphone 1 on driver side -R224- | 18 | Microphone 1 on front passenger side -R227- | |
| 3 | Microphone 1 on driver side -R224- | 19 | Microphone 1 on front passenger side -R227- | |
| 4 | Microphone 1 on driver side -R224- | 20 | Microphone 1 on front passenger side -R227- | |
| 5 | Microphone 1 on driver side -R224- | 21 | Microphone 1 on front passenger side -R227- | |
| 6 | Microphone 1 on driver side -R224- | 22 | Microphone 1 on front passenger side -R227- | |
| 7 | Microphone 1 on driver side -R224- | 23 | Microphone 1 on front passenger side -R227- | |
| 8 | Terminal 31, to 372 earth connection 7 in main wiring harness 687 earth point 1 on centre tunnel | 24 | ||
| 9 | Control unit 1 for information electronics -J794- | 25 | Control unit 1 for information electronics -J794- | |
| 10 | Control unit 1 for information electronics -J794- | 26 | Control unit 1 for information electronics -J794- | |
| 11 | 27 | |||
| 12 | 28 | |||
| 13 | 29 | |||
| 14 | Terminal 30, from B318 positive connection 4 (30a) in main wiring harness fuse holder C -SC- fuse 2 -S132- | 30 | ||
| 15 | 31 | |||
| 16 | Infotainment CAN bus, high B415 connection 1 (infotainment CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | 32 | Infotainment CAN bus, low B421 connection 1 (infotainment CAN bus, low) in main wiring harness data bus diagnostic interface -J533- |
|
| 1 - | Front camera for driver assist systems -R242- |
| A - | 12-pin connector -T12b- , black |
|
| -T12b- (A) | Designation | -T12b- (A) | Designation | |
| 1 | 7 | |||
| 2 | Extended CAN bus, low to B109 connection 1 (extended CAN bus, low) in main wiring harness data bus diagnostic interface -J533- | 8 | Extended CAN bus, high to B108 connection 1 (extended CAN bus, high) in main wiring harness data bus diagnostic interface -J533- | |
| 3 | 9 | |||
| 4 | Windscreen heater for lane departure warning -Z67- | 10 | ||
| 5 | Terminal 31, to 369 earth connection 4 in main wiring harness 370 earth connection 5 in main wiring harness 639 earth point on left A-pillar | 11 | ||
| 6 | Terminal 15, from B279 positive connection 3 (15a) in main wiring harness | 12 |
|
| 1 - | Convertible roof actuation motor -V82- /convertible roof actuation motor 2 -V576- |
| A - | 10-pin connector -T10s- , black/10-pin connector -T10g- , black |
|
| -T10s- (A) | Designation | -T10g- (A) | Designation | |
| 1 | 1 | |||
| 2 | 2 | |||
| 3 | 3 | |||
| 4 | 4 | |||
| 5 | Terminal 31, to 387 earth connection 22 in main wiring harness 368 earth connection 3 in main wiring harness 729 earth point on rear left wheel housing | 5 | Terminal 31, to 387 earth connection 22 in main wiring harness 368 earth connection 3 in main wiring harness 729 earth point on rear left wheel housing | |
| 6 | M32 connection 1 in convertible roof actuation wiring harness convertible roof actuation control unit -J256- | 6 | M32 connection 1 in convertible roof actuation wiring harness convertible roof actuation control unit -J256- | |
| 7 | Convertible roof actuation control unit -J256- | 7 | Convertible roof actuation control unit -J256- | |
| 8 | Convertible roof actuation control unit -J256- | 8 | Convertible roof actuation control unit -J256- | |
| 9 | Convertible roof actuation control unit -J256- | 9 | Convertible roof actuation control unit -J256- | |
| 10 | Convertible roof actuation control unit -J256- | 10 | Convertible roof actuation control unit -J256- |
|
| 1 - | Cabriolet windbreak motor -V186- |
| A - | 3-pin connector -T3bi- , black |
|
| -T3bi- (A) | Designation |
| 1 | |
| 2 | Convertible roof actuation control unit -J256- |
| 3 | Convertible roof actuation control unit -J256- |
|
| 1 - | Convertible roof lock motor -V223- |
| A - | 4-pin connector -T4ch- , black |
|
| -T4ch- (A) | Designation |
| 1 | Convertible roof actuation control unit -J256- |
| 2 | |
| 3 | Convertible roof actuation control unit -J256- |
| 4 |
|
