| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J362 | Immobilizer control unit |
| SA1 | Fuse -1- fuse box/battery |
| SA2 | Fuse -2- fuse box/battery |
| SA4 | Fuse -4- fuse box/battery |
| SA5 | Fuse -5- fuse box/battery |
| T5d | 5-pin connector, on engine, near gearbox |
| 1 | Earth strap, battery - body |
| 2 | Earth strap, gearbox - body |
| D50 | Positive (+) connection (30), in engine compartment wiring harness |
| * | Only models with additional heater |
| G28 | Engine speed sender |
| G42 | Intake air temperature sender |
| G71 | Intake manifold pressure sender |
| G80 | Needle lift sender |
| J248 | Diesel direct injection system control unit |
| N75 | Charge pressure control solenoid valve |
| N109 | Fuel shut-off valve |
| T2s | 2-pin connector, self-diagnosis |
| T3j | 3-pin connector |
| T10y | 10-pin connector, black, on lower part of left A-pillar |
| D110 | Connection -8-, in engine compartment wiring harness |
| * | Only models with engine codes ALH |
| F129 | Air conditioner pressure switch |
| G81 | Fuel temperature sender |
| G149 | Modulating piston movement sender |
| J248 | Diesel direct injection system control unit |
| J293 | Radiator fan control unit |
| J362 | Immobilizer control unit |
| N18 | Exhaust gas recirculation valve |
| N146 | Metering adjuster |
| N239 | Intake manifold flap change-over valve |
| T10y | 10-pin connector, black, on lower part of left A-pillar |
| D80 | Positive (+) connection (87 a - for activated charcoal filter system solenoid valve), in engine compartment wiring harness |
| D107 | Connection -5-, in engine compartment wiring harness |
| F25 | Connection -1-, in diesel direct injection system wiring harness |
| * | Only models with air conditioner |
| ** | Only models with engine codes AYQ |
| *** | Only models with engine codes ALH |
| **** | Wire W for self-diagnosis |
| J248 | Diesel direct injection system control unit |
| J317 | Terminal 30 voltage supply relay |
| J325 | Coolant heater element relay |
| J359 | Low heat output relay |
| J360 | High heat output relay |
| N51 | Intake manifold preheating heater element |
| Q7 | Coolant heating elements |
| S109 | Coolant heater element fuse |
| 12 | Earth point, in engine compartment, left |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| D103 | Connection -3-, in engine compartment wiring harness |
| D114 | Connection -12-, in engine compartment wiring harness |
| * | Only models with additional heater |
| ** | Only models without additional heater |
| *** | Only northern countries |
| F | Brake light switch |
| F36 | Clutch pedal switch |
| F63 | Brake pedal switch |
| G2 | Coolant temperature sender |
| G62 | Coolant temperature sender |
| J248 | Diesel direct injection system control unit |
| M21 | Brake and tail light bulb, left |
| M22 | Brake and tail light bulb, right |
| M25 | High level brake light bulb |
| N108 | Commencement of injection valve |
| TV2 | Terminal 30 junction box |
| T10y | 10-pin connector, black, on lower part of left A-pillar |
| D52 | Positive (+) connection (15a), in engine compartment wiring harness |
| D73 | Positive (+) connection (54), in engine compartment wiring harness |
| D114 | Connection -12-, in engine compartment wiring harness |
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