| T4k | 4-pin connector, black, near front bumper |
| 3 | Earth strap, engine - body |
| 12 | Earth point, on left in engine compartment |
| 33 | Earth point, on right behind dash panel |
| 43 | Earth point, lower part of right A-pillar |
| 83 | Earth connection 1, in front right wiring harness |
| 176 | Earth connection, in right headlight wiring harness |
| 179 | Earth connection, in left headlight wiring harness |
| 238 | Earth connection 1, in interior wiring harness |
| 277 | Earth connection 3, in interior wiring harness |
| 345 | Earth connection, in bumper wiring harness |
| T10c | 10-pin connector, violet, coupling station left of A-pillar |
| 32 | Earth point, on left behind dash panel |
| 44 | Earth point, lower part of left A-pillar |
| 49 | Earth point, near convenience system central control unit |
| 81 | Earth connection 1, in dash panel wiring harness |
| 86 | Earth connection 1, in rear wiring harness |
| 87 | Earth connection 2, in rear wiring harness |
| 135 | Earth connection 2, in dash panel wiring harness |
| 249 | Earth connection 2, in interior wiring harness |
| 261 | Earth connection, in heated washer jet wiring harness |
| 661 | Earth point, on convertible roof box |
| 662 | Earth point, rear left side panel |
| 663 | Earth point, rear right side panel |
| A | Battery |
| D | Ignition/starter switch |
| S88 | Strip fuse |
| T10a | 10-pin connector, brown, coupling station on electronics box, plenum chamber |
| 11 | Earth point, in battery box |
| 500 | Screw connection 1 (30), on relay plate |
| 501 | Screw connection 2 (30), on relay plate |
| A2 | Positive connection (15), in dash panel wiring harness |
| A21 | Connection (86s), in dash panel wiring harness |
| A32 | Positive connection (30), in dash panel wiring harness |
| A33 | Connection (75), in dash panel wiring harness |
| * | ⇒ applicable engine / automatic gearbox Current Flow Diagram |
| ** | for models with washer jet heater element only |
| E45 | Cruise control system switch |
| J... | Engine control units |
| J527 | Steering column electronics control unit |
| T16a | 16-pin connector, black, on steering column electronics control unit |
| T17e | 17-pin connector, white, coupling station on electronics box, plenum chamber |
| 135 | Earth connection 2, in dash panel wiring harness |
| A2 | Positive connection (15), in dash panel wiring harness |
| A21 | Connection (86s), in dash panel wiring harness |
| * | is dropped, from model year 2004 |
| ** | applicable from model year 2004 |
| J519 | Onboard supply control unit |
| J527 | Steering column electronics control unit |
| T1a | 1-pin connector, black, coupling station on left A-pillar |
| T10b | 10-pin connector, black, on onboard supply control unit |
| T10c | 10-pin connector, violet, coupling station left of A-pillar |
| T16a | 16-pin connector, black, on steering column electronics control unit |
| T17 | 17-pin connector, black, coupling station on left A-pillar |
| T23 | 23-pin connector, black, on onboard supply control unit |
| T32b | 32-pin connector, grey, on onboard supply control unit |
| V | Windscreen wiper motor |
| V5 | Washer pump |
| V11 | Headlight washer system pump |
| 44 | Earth point, lower part of left A-pillar |
| 261 | Earth connection, in heated washer jet wiring harness |
| A146 | Connection (convenience CAN bus, high), in dash panel wiring harness |
| A147 | Connection (convenience CAN bus, low), in dash panel wiring harness |
| * | V11 is protected via S237 |
| E1 | Light switch |
| E23 | Front and rear fog light switch |
| E102 | Headlight range control regulator |
| F216 | Rear fog light cut-out contact switch |
| J519 | Onboard supply control unit |
| T10b | 10-pin connector, black, on onboard supply control unit |
| T23 | 23-pin connector, black, on onboard supply control unit |
| T32b | 32-pin connector, grey, on onboard supply control unit |
| 81 | Earth connection 1, in dash panel wiring harness |
| 135 | Earth connection 2, in dash panel wiring harness |
| A51 | Connection (56), in dash panel wiring harness |
| A88 | Connection (RFL), in dash panel wiring harness |
| A114 | Connection (headlight range control), in dash panel wiring harness |
| * | is dropped, from model year 2004 |
| ** | applicable from model year 2004 |
| *** | for models without trailer socket only |
| **** | for models with trailer socket only |
| J519 | Onboard supply control unit |
| L22 | Left fog light bulb |
| M1 | Left side light bulb |
| M5 | Front left turn signal bulb |
| M18 | Left side mounted turn signal bulb |
| M29 | Left dipped beam bulb |
| M30 | Left main beam bulb |
| T4k | 4-pin connector, black, near front bumper |
| T17 | 17-pin connector, black, coupling station on left A-pillar |
| T17a | 17-pin connector, red, coupling station on left A-pillar |
| T23 | 23-pin connector, black, on onboard supply control unit |
| T32b | 32-pin connector, grey, on onboard supply control unit |
| V48 | Left headlight range control motor |
| 179 | Earth connection, in left headlight wiring harness |
| 345 | Earth connection, in bumper wiring harness |
| A6 | Positive connection (left turn signal), in dash panel wiring harness |
| A84 | Connection (58L), in dash panel wiring harness |
| J519 | Onboard supply control unit |
| L23 | Right fog light bulb |
| M3 | Right side light bulb |
| M7 | Front right turn signal bulb |
| M19 | Right side mounted turn signal bulb |
| M31 | Right dipped beam bulb |
| M32 | Right main beam bulb |
| T4k | 4-pin connector, black, near front bumper |
| T17 | 17-pin connector, black, coupling station on left of A-pillar |
| T17c | 17-pin connector, red, coupling station on right of A-pillar |
| T23 | 23-pin connector, black, on onboard supply control unit |
| T32b | 32-pin connector, grey, on onboard supply control unit |
| V49 | Right headlight range control motor |
| 176 | Earth connection, in right headlight wiring harness |
| 345 | Earth connection, in bumper wiring harness |
| A5 | Positive connection (right turn signal), in dash panel wiring harness |
| A85 | Connection (58R), in dash panel wiring harness |
| F | Brake light switch |
| F4 | Reversing light switch |
| J519 | Onboard supply control unit |
| L46 | Rear left fog light bulb |
| M4 | Left tail light bulb |
| M6 | Rear left turn signal bulb |
| M9 | Left brake light bulb |
| M16 | Left reversing light bulb |
| M25 | High level brake light bulb |
| T10a | 10-pin connector, brown, coupling station on electronics box, plenum chamber |
| T17d | 17-pin connector, red, coupling station on electronics box, plenum chamber |
| T17e | 17-pin connector, white, coupling station on electronics box, plenum chamber |
| 86 | Earth connection 1, in rear wiring harness |
| 87 | Earth connection 2, in rear wiring harness |
| A18 | Connection (54), in dash panel wiring harness |
| A87 | Connection (RL), in dash panel wiring harness |
| A104 | Positive connection 2 (15), in dash panel wiring harness |
| A154 | Connection (brake pedal switch), in dash panel wiring harness |
| * | for models with petrol engine only |
| ** | for models with diesel engine only |
| J519 | Onboard supply control unit |
| M2 | Right tail light bulb |
| M8 | Rear right turn signal bulb |
| M10 | Right brake light bulb |
| M17 | Right reversing light bulb |
| T4l | 4-pin connector, black, in rear lid |
| T32b | 32-pin connector, grey, on onboard supply control unit |
| X | Number plate light |
| 87 | Earth connection 2, in rear wiring harness |
| 249 | Earth connection 2, in interior wiring harness |
| A18 | Connection (54), in dash panel wiring harness |
| A87 | Connection (RL), in dash panel wiring harness |
| B132 | Connection (number plate lights), in interior wiring harness |
| E229 | Hazard warning lights button |
| H2 | Treble tone horn |
| H7 | Bass tone horn |
| J4 | Dual tone horn relay |
| J519 | Onboard supply control unit |
| T4k | 4-pin connector, black, near front bumper |
| T17a | 17-pin connector, red, coupling station on left A-pillar |
| T32b | 32-pin connector, grey, on onboard supply control unit |
| 179 | Earth connection, in left headlight wiring harness |
| 277 | Earth connection 3, in interior wiring harness |
| 345 | Earth connection, in bumper wiring harness |
| A90 | Connection (dual tone horn), in dash panel wiring harness |
| B260 | Connection (warning lamp), in interior wiring harness |
| X66 | Connection (horn), in front bumper wiring harness |
| E87 | Operating and display unit for air conditioning system/Climatronic |
| J9 | Heated rear window relay |
| J59 | X-contact relief relay |
| J255 | Climatronic control unit |
| J256 | Convertible roof actuation control unit |
| J519 | Onboard supply control unit |
| S1 | Fuse in relay plate fuse holder |
| S19 | Fuse in relay plate fuse holder |
| S236 | Fuse in fuse holder |
| S237 | Fuse in fuse holder |
| T6k | 6-pin connector, black, behind side trim on rear right |
| T10b | 10-pin connector, black, on onboard supply control unit |
| T32b | 32-pin connector, grey, on onboard supply control unit |
| Z1 | Heated rear window |
| 81 | Earth connection 1, in dash panel wiring harness |
| 662 | Earth point, rear left side panel |
| A34 | Connection (75x), in dash panel wiring harness |
| A57 | Positive connection 3 (30), in dash panel wiring harness |
| B180 | Connection (heated rear window), in interior wiring harness |
| * | is dropped, from model year 2004 |
| ** | Is dropped from November 2004 |
| *** | applicable from November 2004 |
| L15 | Ashtray illumination bulb |
| L28 | Cigarette lighter illumination bulb |
| S12 | Fuse in relay plate fuse holder |
| S13 | Fuse in relay plate fuse holder |
| S14 | Fuse in relay plate fuse holder |
| S15 | Fuse in relay plate fuse holder |
| S233 | Fuse in fuse holder |
| S239 | Fuse in fuse holder |
| S240 | Fuse in fuse holder |
| T8 | 8-pin connector, black, radio connector III |
| U1 | Cigarette lighter |
| 277 | Earth connection 3, in interior wiring harness |
| 610 | Earth point (audio), under centre console, front |
| A46 | Positive connection (30 - from radio), in dash panel wiring harness |
| A50 | Positive connection (30as), in dash panel wiring harness |
| A57 | Positive connection 3 (30), in dash panel wiring harness |
| A129 | Connection (muting), in dash panel wiring harness |
| B169 | Positive connection 1 (30), in interior wiring harness |
| * | for models with preparation for radio only |
| ** | is dropped from July 2002 |
| S3 | Fuse in relay plate fuse holder |
| S5 | Fuse in relay plate fuse holder |
| S7 | Fuse in relay plate fuse holder |
| S20 | Fuse in relay plate fuse holder |
| S21 | Fuse in relay plate fuse holder |
| S231 | Fuse in fuse holder |
| T10a | 10-pin connector, brown, coupling station on electronics box, plenum chamber |
| T10c | 10-pin connector, violet, coupling station on left of A-pillar |
| Z20 | Left washer jet heater element |
| Z21 | Right washer jet heater element |
| 261 | Earth connection, in heated washer jet wiring harness |
| A20 | Positive connection (15a), in dash panel wiring harness |
| A70 | Connection (15a, fuse 231), in dash panel wiring harness |
| A74 | Connection (15a, fuse 5), in dash panel wiring harness |
| * | for models with petrol engine only |
| ** | for models with washer jet heater element only |
| *** | is dropped, from model year 2004 |
| **** | applicable from model year 2004 |
| D2 | Immobilizer reader coil |
| F38 | Ambient temperature switch |
| F66 | Coolant shortage indicator switch |
| F77 | Washer fluid warning contact |
| G2 | Coolant temperature display sender |
| G3 | Coolant temperature gauge |
| G266 | Oil level and oil temperature sender |
| J285 | Control unit in dash panel insert |
| T10 | 10-pin connector, black, coupling station on electronics box, plenum chamber |
| T10a | 10-pin connector, brown, coupling station on electronics box, plenum chamber |
| T10d | 10-pin connector, grey, coupling station on left of A-pillar |
| T14 | 14-pin connector, black, on left in engine compartment |
| T17 | 17-pin connector, black, coupling station on left A-pillar |
| T32 | 32-pin connector, blue, on dash panel insert |
| 83 | Earth connection 1, in front right wiring harness |
| 269 | Earth connection (sender earth) 1, in dash panel wiring harness |
| 327 | Earth connection (sender earth), in engine compartment wiring harness |
| * | is dropped, from model year 2004 |
| ** | applicable from model year 2004 |
| C | Alternator |
| F1 | Oil pressure switch |
| F34 | Brake fluid level warning contact |
| G5 | Rev. counter |
| G21 | Speedometer |
| J... | Engine control units |
| J234 | Airbag control unit |
| J285 | Control unit in dash panel insert |
| K2 | Alternator warning lamp |
| K75 | Airbag warning lamp |
| T2 | 2-pin connector, black, in right engine compartment |
| T10 | 10-pin connector, black, coupling station on electronics box, plenum chamber |
| T10c | 10-pin connector, violet, coupling station left of A-pillar |
| T17d | 17-pin connector, red, coupling station on electronics box, plenum chamber |
| T32a | 32-pin connector, green, on dash panel insert |
| 261 | Earth connection, in heated washer jet wiring harness |
| A17 | Connection (61), in dash panel wiring harness |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| J285 | Control unit with display in dash panel insert |
| J489 | Radio controlled clock receiver |
| L50 | Rear centre ashtray illumination bulb |
| L67 | Dash panel left vent illumination bulb |
| L68 | Dash panel centre vent illumination bulb |
| L69 | Dash panel right vent illumination bulb |
| L120 | Storage compartment illumination bulb |
| L121 | Cup holder illumination bulb |
| L122 | Coin holder illumination bulb |
| T4m | 4-pin connector, black, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| Y8 | Radio controlled clock |
| 238 | Earth connection 1, in interior wiring harness |
| A175 | Connection (58s), in dash panel wiring harness |
| * | for models with preparation for radio only |
| G34 | Front left brake pad wear sender |
| G35 | Front right brake pad wear sender |
| J104 | ABS control unit with EDL |
| J285 | Control unit with display in dash panel insert |
| T4n | 4-pin connector, black, front left |
| T4o | 4-pin connector, black, front right |
| T16 | 16-pin connector, black, diagnostic connector |
| T17b | 17-pin connector, green, coupling station on left of A-pillar |
| T32a | 32-pin connector, green, on dash panel insert |
| 135 | Earth connection 2, in dash panel wiring harness |
| 179 | Earth connection, in left headlight wiring harness |
| 277 | Earth connection 3, in interior wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| F314 | Fuel tank cap switch |
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G22 | Speedometer sender (Hall sender, on gearbox) |
| G169 | Fuel gauge sender 2 |
| J285 | Control unit with display in dash panel insert |
| T10 | 10-pin connector, black, coupling station on electronics box, plenum chamber |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| 83 | Earth connection 1, in front right wiring harness |
| 249 | Earth connection 2, in interior wiring harness |
| 269 | Earth connection (sender earth) 1, in dash panel wiring harness |
| * | for models with fuel tank cap switch only |
| ** | for models with four-wheel drive only |
| *** | is dropped from July 2002 |