| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| F18 | Radiator fan thermal switch |
| SA1 | Fuse -1- (30) on battery fuse holder |
| SA2 | Fuse -2- (30) on battery fuse holder |
| SA3 | Fuse -3- (30) on battery fuse holder |
| SA4 | Fuse -4- (30) on battery fuse holder |
| SA7 | Fuse -7- (30) on battery fuse holder |
| T2b | 2-pin connector, black, near alternator |
| T3b | 3-pin connector, black, on radiator fan |
| T4g | 4-pin connector, black, on battery fuse holder |
| T7 | 7-pin connector |
| T10a | 10-pin connector, green, coupling station below relay carrier |
| T10d | 10-pin connector, red, coupling station below relay carrier |
| V7 | Radiator fan |
| 1 | Earth strap, battery - body |
| 500 | Screw connection -1- (30), on relay plate |
| 502 | Screw connection -3- (30), on relay plate |
| * | Applies only to vehicles fitted with coolant heater elements |
| D | Ignition/starter switch |
| G28 | Engine speed sender |
| J248 | Diesel direct injection system control unit |
| J362 | Immobilizer control unit |
| SB15 | Fuse -15- on fuse holder |
| SB23 | Fuse -23- on fuse holder |
| SB24 | Fuse -24- on fuse holder |
| SB32 | Fuse -32- on fuse holder |
| SB37 | Fuse -37- on fuse holder |
| T3a | 3-pin connector, black, on left of cylinder head |
| T7 | 7-pin connector |
| T10a | 10-pin connector, green, coupling station under relay carrier |
| T10d | 10-pin connector, red, coupling station under relay carrier |
| T10k | 10-pin connector |
| T121 | 121-pin connector |
| 10 | Earth point, in plenum chamber |
| A2 | Positive connection (15), in dash panel wiring harness |
| A15 | Positive connection (15), in instruments wiring harness |
| D180 | Connection (87a), in engine compartment wiring harness |
| F27 | Connection (screening), in diesel direct injection system wiring harness |
| * | Applies only to models with coolant heater elements |
| G42 | Intake air temperature sender |
| G80 | Needle lift sender |
| J234 | Airbag control unit |
| J248 | Diesel direct injection system control unit |
| J491 | Crash fuel shut-off control unit |
| N18 | Exhaust gas recirculation valve |
| T2a | 2-pin connector, brown, on left of cylinder head near injection pump |
| T10c | 10-pin connector, blue, coupling station under relay carrier |
| T121 | 121-pin connector |
| 76 | Earth point, near selector mechanism |
| 81 | Earth connection -1-, in dash panel wiring harness |
| A125 | Connection (crash signal), in dash panel wiring harness |
| F27 | Connection (screening), in diesel direct injection system wiring harness |
| * | Applies only to models with an airbag |
| G81 | Fuel temperature sender |
| G149 | Modulating piston movement sender |
| J104 | ABS with EDL control unit |
| J248 | Diesel direct injection system control unit |
| N108 | Commencement of injection valve |
| N109 | Fuel shut-off valve |
| N146 | Metering adjuster |
| T10d | 10-pin connector, red, coupling station under relay carrier |
| T10h | 10-pin connector, black, on left of cylinder head |
| T10s | 10-pin connector, grey, coupling station under relay carrier |
| T25 | 25-pin connector |
| T121 | 121-pin connector |
| D78 | Positive connection -1- (30a), in engine compartment wiring harness |
| D159 | Connection (high bus), in engine compartment wiring harness |
| D160 | Connection (low bus), in engine compartment wiring harness |
| F28 | Connection -3-, in diesel direct injection system wiring harness |
| F60 | Idling speed switch |
| G79 | Accelerator pedal position sender |
| J248 | Diesel direct injection system control unit |
| J359 | Low heat output relay |
| J360 | High heat output relay |
| Q7 | Coolant heater elements |
| T6 | 6-pin connector, black, in front left footwell |
| T10c | 10-pin connector, blue, coupling station under relay carrier |
| T24 | 24-pin connector, black, on left of cylinder head |
| T121 | 121-pin connector |
| D50 | Positive connection (30), in engine compartment wiring harness |
| D98 | Connection (glow plugs), in engine compartment wiring harness |
| * | Applies only to models with coolant heater elements |
| F36 | Clutch pedal switch |
| G2 | Coolant temperature sender |
| G27 | Engine temperature sender |
| J248 | Diesel direct injection system control unit |
| J317 | Terminal 30 voltage supply relay |
| N211 | Throttle butterfly valve |
| T10a | 10-pin connector, green, coupling station under relay carrier |
| T24 | 24-pin connector, black, on left of cylinder head |
| T121 | 121-pin connector |
| 12 | Earth point, on left in engine compartment |
| 167 | Earth connection -4-, in engine compartment wiring harness |
| D73 | Positive connection (54), in engine compartment wiring harness |
| * | Applies only to models with coolant heater elements |
| ** | Applies only to models with ABS |
| F | Brake light switch |
| F1 | Oil pressure switch |
| F47 | Brake pedal switch for cruise control system/diesel direct injection system |
| G22 | Speedometer sender (Hall sender on gearbox) |
| J52 | Glow plug relay, near front left headlight |
| J362 | Immobilizer control unit |
| Q6 | Engine glow plugs |
| T10 | 10-pin connector, white, coupling station below relay plate |
| T10a | 10-pin connector, green, coupling station below relay plate |
| T10b | 10-pin connector, black, coupling station below relay plate |
| T10d | 10-pin connector, red, coupling station below relay plate |
| T10k | 10-pin connector |
| T24 | 24-pin connector, black, on left of cylinder head |
| 15 | Earth point, on cylinder head |
| A32 | Positive connection (30), in dash panel wiring harness |
| A38 | Positive connection -2- (15a), in dash panel wiring harness |
| A52 | Positive connection -2- (30), in dash panel wiring harness |
| F31 | Connection (engine glow plugs), in diesel direct injection system wiring harness |
| * | Applies only to vehicles fitted with ABS |
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G32 | Coolant shortage indicator sender |
| H11 | Oil pressure warning buzzer |
| J285 | Control unit with display in dash panel insert |
| K2 | Alternator warning lamp |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| T10b | 10-pin connector, black, coupling station below relay plate |
| T10d | 10-pin connector, red, coupling station below relay plate |
| T32 | 32-pin connector |
| Y4 | Odometer |
| A27 | Connection (speed signal), in dash panel wiring harness |
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