| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| S162 | Fuse 1 (30), in battery fuse holder |
| S163 | Fuse 2 (30), in battery fuse holder |
| S267 | Fuse 9 (30), in battery fuse holder |
| T1b | Single connector |
| T2n | 2-pin connector, in engine compartment |
| T2u | 2-pin connector |
| T14a | 14-pin connector, on left in engine compartment |
| T73c | 73-pin connector |
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| 507 | Threaded connection (30), on battery fuse holder |
| * | Only for engines with 4-valve cylinder head |
| *2 | Only for engines with 2-valve cylinder head |
| E3 | Hazard warning light switch |
| F2 | Driver door contact switch |
| F3 | Front passenger door contact switch |
| F111 | Rear lid contact switch |
| G209 | Anti-theft alarm ultrasonic sensor |
| G397 | Rain and light sensor |
| H1 | Horn or dual tone horn |
| J519 | Onboard supply control unit |
| R | Radio |
| T1f | Single connector |
| T1k | Single connector |
| T2af | 2-pin connector |
| T2ag | 2-pin connector |
| T2ar | 2-pin connector |
| T3w | 3-pin connector |
| T4m | 4-pin connector |
| T5j | 5-pin connector, on left in luggage compartment |
| T6s | 6-pin connector |
| T8b | 8-pin connector |
| T73b | 73-pin connector |
| T73c | 73-pin connector |
| V139 | Rear lid release motor |
| 377 | Earth connection 12, in main wiring harness |
| * | Saloon |
| *2 | Squareback |
| *3 | Only models with no luggage compartment light |
| *4 | For models with anti-theft alarm system |
| E4 | Headlight dipper and flasher switch |
| E150 | Driver side interior locking switch |
| F | Brake light switch |
| F120 | Anti-theft alarm and vermin repellent system contact switch |
| J5 | Fog light relay |
| J519 | Onboard supply control unit |
| T1i | Single connector |
| T2ax | 2-pin connector |
| T4c | 4-pin connector |
| T4n | 4-pin connector |
| T5k | 5-pin connector, on left in luggage compartment |
| T6j | 6-pin connector |
| T9i | 9-pin connector |
| T20b | 20-pin connector, in driver door |
| T41a | 41-pin connector |
| T73b | 73-pin connector |
| T73c | 73-pin connector |
| V302 | Driver door power latching motor |
| Z1 | Heated rear window |
| B337 | Connection 3 (54), in main wiring harness |
| B477 | Connection 13, in main wiring harness |
| B481 | Connection 17, in main wiring harness |
| B629 | Connection (56a), in main wiring harness |
| * | Only models with additional lights |
| *2 | Squareback |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| M9 | Left brake light bulb |
| M10 | Right brake light bulb |
| T3e | 3-pin connector |
| T5b | 5-pin connector |
| T10f | 10-pin connector |
| T16b | 16-pin connector |
| T73b | 73-pin connector |
| T73c | 73-pin connector |
| W1 | Front interior light |
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| 371 | Earth connection 6, in main wiring harness |
| 373 | Earth connection 8, in main wiring harness |
| B335 | Connection 1 (54), 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 |
| * | Only models with no rear reading lights |
| *2 | Diagnostic connection |
| F11 | Rear right door contact switch |
| J519 | Onboard supply control unit |
| L22 | Left fog light bulb |
| L23 | Right fog light bulb |
| M6 | Rear left turn signal bulb |
| M8 | Rear right turn signal bulb |
| M94 | Left main beam headlight and fog light bulb |
| M95 | Right main beam headlight and fog light bulb |
| T1l | Single connector |
| T2ad | 2-pin connector |
| T4ae | 4-pin connector |
| T4af | 4-pin connector |
| T4w | 4-pin connector |
| T4y | 4-pin connector |
| T73b | 73-pin connector |
| T73c | 73-pin connector |
| 367 | Earth connection 2, in main wiring harness |
| 396 | Earth connection 31, in main wiring harness |
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| * | Only models with fog lights |
| E3 | Hazard warning light switch |
| E34 | Rear wiper switch |
| F4 | Reversing light switch |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| J1015 | Central control unit for window regulators |
| T2aq | 2-pin connector |
| T6s | 6-pin connector |
| T23b | 23-pin connector |
| T41a | 41-pin connector |
| T73b | 73-pin connector |
| T73c | 73-pin connector |
| B336 | Connection 2 (54), in main wiring harness |
| B340 | Connection 1 (58d), in main wiring harness |
| B466 | Connection 2, in main wiring harness |
| B491 | Positive connection (75), in interior wiring harness |
| B528 | Connection 1 (LIN bus) in main wiring harness |
| * | Only models with manual window regulators |
| *2 | Only models with Bluetooth |
| E22 | Intermittent wiper switch |
| J12 | Headlight main beam relay |
| J104 | ABS control unit |
| J519 | Onboard supply control unit |
| M5 | Front left turn signal bulb |
| M7 | Front right turn signal bulb |
| T2ab | 2-pin connector |
| T2ac | 2-pin connector |
| T2as | 2-pin connector |
| T5i | 5-pin connector |
| T10f | 10-pin connector |
| T10g | 10-pin connector |
| T38a | 38-pin connector |
| T41a | 41-pin connector |
| T64a | 64-pin connector |
| T73c | 73-pin connector |
| V | Windscreen wiper motor |
| V59 | Windscreen and rear window washer pump |
| B302 | Positive connection 6 (30), in main wiring harness |
| B630 | Positive connection (left turn signal bulb), in main wiring harness |
| B631 | Positive connection (right turn signal bulb), in main wiring harness |
| B642 | Positive connection (58), in main wiring harness |
| B737 | Connection 2 (53c), in main wiring harness |
| * | Only models with dual headlights |
| *2 | Only for engines with 4-valve cylinder head |
| G209 | Anti-theft alarm ultrasonic sensor |
| G230 | Backrest adjustment sender for driver seat |
| J331 | Dipped beam relay |
| J519 | Onboard supply control unit |
| T2be | 2-pin connector |
| T2k | 2-pin connector, in front passenger door |
| T4m | 4-pin connector |
| T6i | 6-pin connector |
| T6j | 6-pin connector |
| T6y | 6-pin connector |
| T20b | 20-pin connector, in driver door |
| T20c | 20-pin connector, in front passenger door |
| T64a | 64-pin connector |
| T73b | 73-pin connector |
| T73c | 73-pin connector |
| V302 | Driver door power latching motor |
| V303 | Front passenger door power latching motor |
| B468 | Connection 4, in main wiring harness |
| B480 | Connection 16, in main wiring harness |
| B482 | Connection 18, in main wiring harness |
| * | Only models with 4-doors |
| *2 | Only models with basic equipment |
