| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| T1ag | Single connector |
| T2bo | 2-pin connector |
| T2v | 2-pin connector, near battery |
| T16c | 16-pin connector, next to relay plate |
| TV2 | Terminal 30 wiring junction |
| 1 | Earth strap, battery - body |
| 49 | Earth point, near ..., near battery |
| A52 | Positive connection 2 (30), in dash panel wiring harness |
| D26 | Positive connection (B+), in alternator wiring harness |
| P1 | Positive connection (30), in battery fuse holder |
| F121 | Driver door exterior handle switch for anti-theft alarm system |
| F122 | Front passenger door exterior handle switch for anti-theft alarm system |
| M27 | Left door warning lamp |
| T2de | 2-pin connector |
| T3k | 3-pin connector, on exterior handle switch in driver door, for anti-theft alarm system |
| T3l | 3-pin connector, on exterior handle switch in front passenger door, for anti-theft alarm system |
| T20b | 20-pin connector, in front passenger door |
| T20c | 20-pin connector, in driver door |
| 205 | Earth connection, in driver door wiring harness |
| R60 | Positive connection (30a), in driver door wiring harness |
| F5 | Luggage compartment light switch |
| J292 | Relay for raising window |
| T2l | 2-pin connector |
| T2m | 2-pin connector |
| T2z | 2-pin connector |
| T9d | 9-pin connector |
| T20b | 20-pin connector, in front passenger door |
| T20c | 20-pin connector, in driver door |
| V147 | Driver side window regulator motor |
| V148 | Front passenger side window regulator motor |
| 50 | Earth point, on left in luggage compartment |
| 52 | Earth point, on left in rear lid |
| 98 | Earth connection, in rear lid wiring harness |
| A62 | Connection (window regulators), in dash panel wiring harness |
| * | Only models with electric window regulators |
| E40 | Front left window regulator switch |
| E81 | Front right window regulator switch in driver door |
| E107 | Window regulator switch in front passenger door |
| L53 | Window regulator switch illumination bulb |
| T4e | 4-pin connector |
| T4u | 4-pin connector |
| T20b | 20-pin connector, in front passenger door |
| T20c | 20-pin connector, in driver door |
| 44 | Earth point, lower part of left A-pillar |
| 199 | Earth connection 3, in dash panel wiring harness |
| 206 | Earth connection, in front passenger door wiring harness |
| 213 | Earth connection, in dash panel wiring harness |
| A19 | Connection (58d), in dash panel wiring harness |
| F2 | Driver door contact switch |
| F3 | Front passenger door contact switch |
| F10 | Rear left door contact switch |
| F11 | Rear right door contact switch |
| F120 | Anti-theft alarm and vermin repellent system contact switch |
| H8 | Anti-theft alarm system horn |
| J85 | Alarm system control unit |
| T1k | Single connector |
| T1l | Single connector |
| T1q | Single connector |
| T1s | Single connector |
| T2al | 2-pin connector |
| T2at | 2-pin connector |
| T2x | 2-pin connector, behind rear left side trim, near wheel arch |
| T4b | 4-pin connector |
| T16c | 16-pin connector, next to relay plate |
| T16d | 16-pin connector, next to relay plate |
| T16g | 16-pin connector, behind glove compartment |
| T22a | 22-pin connector |
| W1 | Front interior light |
| 44 | Earth point, lower part of left A-pillar |
| 82 | Earth connection 1, in front left wiring harness |
| 331 | Earth connection, in injection system wiring harness |
| W22 | Connection (door contact switch), in rear wiring harness |
| * | Only models with electric window regulators |
| M5 | Front left turn signal bulb |
| M6 | Rear left turn signal bulb |
| M7 | Front right turn signal bulb |
| M8 | Rear right turn signal bulb |
| T2a | 2-pin connector |
| T2b | 2-pin connector |
| T4b | 4-pin connector |
| T5l | 5-pin connector |
| T5m | 5-pin connector |
| T16b | 16-pin connector, next to relay plate |
| T16e | 16-pin connector, next to relay plate |
| W1 | Front interior light |
| 44 | Earth point, lower part of left A-pillar |
| 50 | Earth point, on left in luggage compartment |
| 86 | Earth connection 1, in rear wiring harness |
| 108 | Earth connection 2, in front left wiring harness |
| A5 | Positive connection (right turn signal), in dash panel wiring harness |
| A6 | Positive connection (left turn signal), in dash panel wiring harness |
| C61 | Positive connection (left turn signal), in front left wiring harness |
| C62 | Positive connection (right turn signal), in front left wiring harness |
| * | Variant |
| *2 | Squareback |
| Designation of connector: | | A - | ABS control unit -J104- | | B - | 31-pin connector, on ABS control unit -T31a- |
| Airbag control unit -J234- | | | | | Designation of connector: | | A - | Airbag control unit -J234- | | B - | 75-pin connector, on ABS control unit -T75a- |
| Control unit with display in dash panel insert -J285- | | | | | Designation of connector: | | A - | Control unit with display in dash panel insert -J285- | | B - | 32-pin connector, on control unit with display in dash panel insert -T32a- | | 8 - | Coolant temperature sender | | 20 - | Immobilizer control unit | | 29 - | Brake system monitoring | | B - | 32-pin connector, on control unit with display in dash panel insert -T32a- | Note | for models with 1.0 l Flex engine, 1.0 l and 1.4 l petrol engines only, from March 2008 | | 4 - | Terminal CAN-Bus high | | 14 - | Brake system monitoring | | 15 - | Immobilizer control unit | | 16 - | Immobilizer control unit |
| Control unit with display in dash panel insert -J285- | Note | for models Generation IV with dash panel Generation III only | | | | | Designation of connector: | | A - | Control unit with display in dash panel insert -J285- | | B - | 32-pin connector, on control unit in dash panel insert -T32a- | | 8 - | Coolant temperature sender | | 16 - | Immobilizer control unit | | 22 - | Coolant shortage indicator sender | | 29 - | Brake system monitoring |
| Convenience system central control unit -J393- | | | | | Designation of connector: | | A - | Convenience system central control unit -J393- | | B - | 12-pin connector, on convenience system central control unit -T12c- | | C - | 23-pin connector, on convenience system central control unit -T23a- | | D - | 12-pin connector, on convenience system central control unit -T12b- |
| Engine control unit -J623- | | | | | Designation of connector: | | A - | Engine control unit -J623- | | B/C - | 80-pin connector, on engine control unit -T80a- |
| Air conditioning system control unit -J301- | | | | | Designation of connector: | | A - | Air conditioning system control unit -J301- | | B - | 5-pin connector, on air conditioning system control unit -T5d- | | C - | 7-pin connector, on heater control unit -T7d- |
| Immobilizer control unit -J362- | | | | | Designation of connector: | | A - | Immobilizer control unit -J362- | | B - | 8-pin connector, on immobilizer control unit -T8g- | | C - | 2-pin connector, on immobilizer control unit -T2bp- |
| Alarm system control unit -J85- | | | | | Designation of connector: | | A - | Alarm system control unit -J85- | | B - | 22-pin connector, on alarm system control unit -T22a- |
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