| B | Starter |
| D | Ignition/starter switch |
| J519 | Onboard supply control unit |
| J682 | Terminal 50 voltage supply relay |
| J935 | Converter box |
| T6ap | 6-pin connector |
| T9c | 9-pin connector |
| T10 | 10-pin connector |
| T10i | 10-pin connector |
| T73a | 73-pin connector |
| T73b | 73-pin connector |
| A15 | Positive connection (15), in instrument wiring harness |
| A21 | Connection (86s), in dash panel wiring harness |
| A33 | Connection (75), in dash panel wiring harness |
| A41 | Positive connection (50), in dash panel wiring harness |
| A86 | Connection (50a), in dash panel wiring harness |
| J329 | Terminal 15 voltage supply relay |
| J519 | Onboard supply control unit |
| J681 | Terminal 15 voltage supply relay 2 |
| SC | Fuse holder C |
| SC8 | Fuse 8 on fuse holder C |
| SC10 | Fuse 10 on fuse holder C |
| SC13 | Fuse 13 on fuse holder C |
| SC14 | Fuse 14 on fuse holder C |
| SC15 | Fuse 15 on fuse holder C |
| T9f | 9-pin connector |
| T9g | 9-pin connector |
| T73a | 73-pin connector |
| B149 | Positive connection 2 (15a), in interior wiring harness |
| B163 | Positive connection 1 (15), in interior wiring harness |
| B346 | Connection 1 (75), in main wiring harness |
| B492 | Positive connection 3 (15), in interior wiring harness |
| * | Up to August 2012 |
| *2 | From August 2012 |
| J519 | Onboard supply control unit |
| SC | Fuse holder C |
| SC3 | Fuse 3 on fuse holder C |
| SC6 | Fuse 6 on fuse holder C |
| SC7 | Fuse 7 on fuse holder C |
| SC21 | Fuse 21 on fuse holder C |
| SC22 | Fuse 22 on fuse holder C |
| SC23 | Fuse 23 on fuse holder C |
| SC24 | Fuse 24 on fuse holder C |
| SC36 | Fuse 36 on fuse holder C |
| SC39 | Fuse 39 on fuse holder C |
| SC44 | Fuse 44 on fuse holder C |
| SC55 | Fuse 55 on fuse holder C |
| T73a | 73-pin connector |
| A1 | Positive connection (30a), in dash panel wiring harness |
| A32 | Positive connection (30), in dash panel wiring harness |
| A198 | Positive connection 6 (30a) in dash panel wiring harness |
| B169 | Positive connection 1 (30), in interior wiring harness |
| B170 | Positive connection 2 (30), in interior wiring harness |
| B171 | Positive connection 3 (30), in interior wiring harness |
| B172 | Positive connection 4 (30), in interior wiring harness |
| B219 | Positive connection 4 (30a), in interior wiring harness |
| * | Up to February 2013 |
| J519 | Onboard supply control unit |
| L22 | Left fog light bulb |
| L23 | Right fog light bulb |
| L174 | Left daytime running light bulb |
| M1 | Left side light bulb |
| MX1 | Front left headlight |
| M5 | Front left turn signal bulb |
| M29 | Left headlight dipped beam bulb |
| M30 | Left headlight main beam bulb |
| T2dg | 2-pin connector |
| T2dh | 2-pin connector |
| T10l | 10-pin connector |
| V48 | Left headlight range control motor |
| 121 | Earth connection 2, in front right wiring harness |
| 179 | Earth connection, in left headlight wiring harness |
| 376 | Earth connection 11, in main wiring harness |
| 655 | Earth point, on left headlight |
| B142 | Positive connection 2 (56a), in interior wiring harness |
| B457 | Connection 1 (potentiometer), in main wiring harness |
| B522 | Connection (FL), in main wiring harness |
| * | Up to August 2012 |
| *2 | From August 2012 |
| J519 | Onboard supply control unit |
| L46 | Rear left fog light bulb |
| M2 | Right tail light bulb |
| MX3 | Left tail light |
| M4 | Left tail light bulb |
| MX5 | Left tail light 2 |
| MX6 | Right tail light 2 |
| M6 | Rear left turn signal bulb |
| M9 | Left brake light bulb |
| M16 | Left reversing light bulb |
| M17 | Right reversing light bulb |
| T4a | 4-pin connector |
| T4c | 4-pin connector |
| T4d | 4-pin connector |
| T73a | 73-pin connector |
| T73b | 73-pin connector |
| 86 | Earth connection 1, in rear wiring harness |
| A6 | Positive connection (left turn signal), in dash panel wiring harness |
| A84 | Connection (58L), in dash panel wiring harness |
| A88 | Connection (RFL), in dash panel wiring harness |
| E234 | Rear lid handle release button |
| F5 | Luggage compartment light switch |
| F256 | Rear lid lock unit |
| J519 | Onboard supply control unit |
| T2dx | 2-pin connector |
| T2dy | 2-pin connector |
| T2t | 2-pin connector |
| T4u | 4-pin connector |
| T73a | 73-pin connector |
| V254 | Rear lid electric opener motor |
| X | Number plate light |
| 86 | Earth connection 1, in rear wiring harness |
| 437 | Earth connection, in number plate wiring harness |
| 662 | Earth point, rear left side panel |
| A126 | Connection (rear lid contact switch), in dash panel wiring harness |
| B128 | Connection (luggage compartment light), in interior wiring harness |
| W41 | Positive connection (58), in number plate lights wiring harness |
| J519 | Onboard supply control unit |
| M2 | Right tail light bulb |
| MX4 | Right tail light |
| M8 | Rear right turn signal bulb |
| M10 | Right brake light bulb |
| M25 | Additional brake light bulb |
| T2dn | 2-pin connector |
| T2x | 2-pin connector |
| T4b | 4-pin connector |
| T8f | 8-pin connector |
| T28 | 28-pin connector |
| T73a | 73-pin connector |
| T73b | 73-pin connector |
| V56 | Driver door central locking motor |
| V155 | Tank filler flap locking motor |
| 87 | Earth connection 2, in rear wiring harness |
| 682 | Earth point 2, in rear right side panel |
| A5 | Positive connection (right turn signal), in dash panel wiring harness |
| A85 | Connection (58R), in dash panel wiring harness |
| A89 | Connection 2 (54) in dash panel wiring harness |
| B214 | Connection 1 (central locking), in interior wiring harness |
| B216 | Connection 3 (central locking), in interior wiring harness |
| F4 | Reversing light switch |
| J519 | Onboard supply control unit |
| L131 | Driver side turn signal repeater bulb |
| L132 | Front passenger side turn signal repeater bulb |
| T2fi | 2-pin connector |
| T12b | 12-pin connector |
| T12c | 12-pin connector |
| T28 | 28-pin connector |
| T28a | 28-pin connector |
| T73b | 73-pin connector |
| 107 | Earth connection, in external mirror wiring harness |
| 205 | Earth connection, in driver door wiring harness |
| 206 | Earth connection, in front passenger door wiring harness |
| 801 | Earth connection 2, in external mirror wiring harness |
| A217 | Positive connection 8 (15a) in dash panel wiring harness |
| B182 | Connection (RL), in interior wiring harness |
| * | Only models with manual gearbox |
| *2 | Only models with automatic gearbox |
| E2 | Turn signal switch |
| E4 | Headlight dipper and flasher switch |
| EX19 | Left steering column switch |
| E45 | Cruise control system switch |
| E227 | Cruise control system (CCS) SET button |
| J5 | Fog light relay |
| J220 | Motronic control unit |
| J331 | Dipped beam relay |
| J519 | Onboard supply control unit |
| T9n | 9-pin connector |
| T9y | 9-pin connector |
| T16ls | 16-pin connector |
| T73a | 73-pin connector |
| T73b | 73-pin connector |
| A9 | Positive connection (56b), in instruments wiring harness |
| A51 | Connection (56), in dash panel wiring harness |
| B441 | Connection (CCS), in main wiring harness |
| * | Only models with cruise control system (CCS) |
| *2 | Up to August 2012 |
| E229 | Hazard warning lights button |
| F138 | Airbag coil connector and return ring with slip ring |
| H | Horn plate |
| J234 | Airbag control unit |
| J519 | Onboard supply control unit |
| K6 | Indicator lamp for hazard warning light |
| N95 | Driver side airbag igniter |
| T4k | 4-pin connector |
| T6c | 6-pin connector |
| T12k | 12-pin connector |
| T16k | 16-pin connector |
| T50 | 50-pin connector |
| T73a | 73-pin connector |
| T73b | 73-pin connector |
| 43 | Earth point, lower part of right A-pillar |
| 80 | Earth connection 1, in dash panel wiring harness |
| 366 | Earth connection 1, in main wiring harness |
| J519 | Onboard supply control unit |
| T4p | 4-pin connector |
| T73a | 73-pin connector |
| T73b | 73-pin connector |
| V216 | Driver side windscreen wiper motor |
| 367 | Earth connection 2, in main wiring harness |
| 368 | Earth connection 3, in main wiring harness |
| 386 | Earth connection 21, in main wiring harness |
| 602 | Earth point, in front left footwell |
| 605 | Earth point, on top end of steering column |
| * | Up to July 2012 |
| H2 | Treble horn |
| H7 | Bass horn |
| J519 | Onboard supply control unit |
| R178 | Frequency modulation (FM) frequency filter in negative wire |
| R179 | Frequency modulation (FM) frequency filter in positive wire |
| T2di | 2-pin connector |
| T2dj | 2-pin connector |
| T73a | 73-pin connector |
| T73b | 73-pin connector |
| Z1 | Heated rear window |
| 13 | Earth point, on right in engine compartment |
| 108 | Earth connection 2, in front left wiring harness |
| 124 | Earth connection, in right side engine compartment wiring harness |
| 657 | Earth point 1, on left near rear window |
| 671 | Earth point 1, on front of left longitudinal member |
| 681 | Earth point 1, in rear right side panel |
| B180 | Connection (heated rear window), in interior wiring harness |
| C13 | Positive connection in dual tone horn wiring harness |
| * | Cross section depends on equipment |
| J519 | Onboard supply control unit |
| T2aq | 2-pin connector |
| T6b | 6-pin connector |
| T73a | 73-pin connector |
| W3 | Luggage compartment light |
| W39 | Left centre reading light |
| W40 | Right centre reading light |
| 347 | Earth connection, in roof wiring harness |
| 389 | Earth connection 24, in main wiring harness |
| B154 | Connection 1 (DCt), in interior wiring harness |
| B250 | Positive connection, in roof wiring harness |
| B552 | Positive connection 2, in roof wiring harness |
| E26 | Glove compartment light switch |
| F147 | Driver vanity mirror contact switch |
| F148 | Front passenger vanity mirror contact switch |
| J519 | Onboard supply control unit |
| T2bi | 2-pin connector |
| T2bj | 2-pin connector |
| T2bk | 2-pin connector |
| T2bl | 2-pin connector |
| T2bp | 2-pin connector |
| T2br | 2-pin connector |
| T3an | 3-pin connector |
| W6 | Glove compartment light |
| W11 | Rear left reading light |
| W12 | Rear right reading light |
| W14 | Front passenger side illuminated vanity mirror |
| W20 | Driver side illuminated vanity mirror |
| W43 | Rear interior light |
| 43 | Earth point, lower part of right A-pillar |
| 81 | Earth connection 1, in dash panel wiring harness |
| B250 | Positive connection, in roof wiring harness |
| B552 | Positive connection 2, in roof wiring harness |
| F | Brake light switch |
| J29 | Blocking diode |
| J519 | Onboard supply control unit |
| L28 | Cigarette lighter illumination bulb |
| T3g | 3-pin connector |
| T3h | 3-pin connector |
| T3j | 3-pin connector |
| T4al | 4-pin connector |
| T73a | 73-pin connector |
| U1 | Cigarette lighter |
| U5 | 12 V socket |
| U18 | 12 V socket 2 |
| 43 | Earth point, lower part of right A-pillar |
| 374 | Earth connection 9, in main wiring harness |
| B131 | Connection (54), in interior wiring harness |
| B348 | Connection 1 (75a), in main wiring harness |
| D196 | Connection 2 (87a) in engine prewiring harness |
| * | According to equipment |
| F1 | Oil pressure switch |
| G17 | Ambient temperature sensor |
| G32 | Coolant shortage indicator sender |
| J119 | Multifunction indicator |
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| K | Dash panel insert |
| K31 | Cruise control system warning lamp |
| K65 | Left turn signal warning lamp |
| K94 | Right turn signal warning lamp |
| K105 | Reserve fuel warning lamp |
| T2cw | 2-pin connector |
| T2dk | 2-pin connector |
| T14 | 14-pin connector |
| T32 | 32-pin connector |
| 269 | Earth connection (sender earth) 1, in dash panel wiring harness |
| J104 | ABS control unit |
| J234 | Airbag control unit |
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| K | Dash panel insert |
| K1 | Main beam warning lamp |
| K3 | Oil pressure warning lamp |
| K19 | Seat belt warning system warning lamp |
| K28 | Coolant temperature and coolant shortage warning lamp |
| K32 | Brake pad warning lamp |
| K83 | Exhaust emissions warning lamp |
| K115 | Immobilizer warning lamp |
| K118 | Brake system warning lamp |
| K205 | Warning lamp for daytime running lights |
| T32 | 32-pin connector |
| T47 | 47-pin connector |
| T50 | 50-pin connector |
| B383 | Connection 1 (powertrain CAN bus, high), in main wiring harness |
| B390 | Connection 1 (powertrain CAN bus, low), in main wiring harness |
| J234 | Airbag control unit |
| J255 | Climatronic control unit |
| J301 | Air conditioning system control unit |
| J519 | Onboard supply control unit |
| J533 | Data bus diagnostic interface |
| J623 | Engine control unit |
| T16 | 16-pin connector |
| T20c | 20-pin connector |
| T50 | 50-pin connector |
| T73b | 73-pin connector |
| U31 | Diagnostic connection |
| A76 | Connection (K-diagnosis wire), in dash panel wiring harness |
| B150 | Positive connection 2 (30a), in interior wiring harness |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
| B590 | K-diagnosis wire connection, in interior wiring harness |
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