| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| E1 | Lighting switch |
| S11 | Fuse in fuse box |
| S162 | Fuse -1- (30), in battery fuse holder |
| S163 | Fuse -2- (30), in battery fuse holder |
| S176 | Fuse -4- (30), in battery fuse holder |
| S177 | Fuse -5- (30), in battery fuse holder |
| S229 | Fuse in fuse holder |
| T4g | 4-pin connector, near starter |
| T6 | 6-pin connector, brown, in protective housing for connectors, left in plenum chamber |
| T18 | 18-pin connector, on lighting switch |
| 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 |
| A32 | Positive connection (30), in dash panel wiring harness |
| A52 | Positive connection -2- (30), in dash panel wiring harness |
| F8 | Kick-down switch |
| F60 | Idling switch |
| G79 | Accelerator position sender |
| J52 | Glow plug relay |
| J248 | Diesel direct injection system control unit, centre in plenum chamber |
| Q6 | Glow plugs - (engine) |
| T2 | 2-pin connector |
| T6 | 6-pin connector, brown, in protective housing for connectors, left in plenum chamber |
| T6a | 6-pin connector, behind dash panel wiring harness, left |
| T10 | 10-pin connector, orange, in protective housing for connectors, left in plenum chamber |
| T10h | 10-pin connector, blue, in protective housing for connectors, left in plenum chamber |
| T14a | 14-pin connector, black, in engine compartment |
| T80 | 80-pin connector |
| 220 | Earth connection (sender earth), in engine wiring harness |
| 238 | Earth connection -1-, in interior wiring harness |
| A104 | Positive connection -2- (15), in dash panel wiring harness |
| G2 | Coolant temperature gauge sender |
| G28 | Engine speed sender |
| G62 | Coolant temperature sender |
| G70 | Air mass meter |
| G71 | Intake manifold pressure sender |
| G72 | Intake manifold temperature sender |
| J217 | Automatic gearbox control unit, centre in plenum chamber |
| J248 | Diesel direct injection system control unit, centre in plenum chamber |
| T3 | 3-pin connector, on front of engine |
| T10 | 10-pin connector, orange, in protective housing for connectors, left in plenum chamber |
| T10d | 10-pin connector, in engine compartment |
| T10e | 10-pin connector, black, in engine compartment |
| T10h | 10-pin connector, blue, in engine compartment |
| T14a | 14-pin connector, in engine compartment |
| T68 | 68-pin connector |
| T80 | 80-pin connector |
| 200 | Earth connection (screening), in engine compartment wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| * | Compressor switch-off |
| ** | Air conditioner 'ready' connection |
| --- | For vehicles with automatic gearbox only |
| G80 | Needle lift sender |
| G81 | Fuel temperature sender |
| G149 | Modulating piston movement sender |
| J104 | ABS/ABS with EDL control unit, in engine compartment, left |
| J217 | Automatic gearbox, in plenum chamber, centre |
| J248 | Diesel direct injection system control unit, in plenum chamber, centre |
| N146 | Metering adjuster |
| T2a | 2-pin connector, on engine front |
| T10a | 10-pin connector, grey, connector point, electronics box, in plenum chamber, left |
| T10f | 10-pin connector, on engine front |
| T14a | 14-pin connector, black, in engine compartment |
| T25 | 25-pin connector |
| T68 | 68-pin connector |
| T80 | 80-pin connector |
| 200 | Earth connection (sender earth), in engine wiring harness |
| B229 | Connection (high bus), in interior wiring harness |
| B230 | Connection (low bus), in interior wiring harness |
| F25 | Connection -1-, in diesel direct injection system wiring harness |
| * | Only models with manual gearbox and heated pin heating |
| J248 | Diesel direct injection system control unit, in plenum chamber, centre |
| J317 | Terminal 30 voltage supply relay |
| N18 | Exhaust gas recirculation valve |
| N75 | Charge pressure control solenoid valve |
| N108 | Commencement of injection valve |
| N109 | Fuel shut-off valve |
| N239 | Intake manifold flap change-over valve |
| S234 | Fuse in fuse box |
| T6 | 6-pin connector, brown, connector point, electronics box, in plenum chamber, left |
| T10 | 10-pin connector, orange, connector point, electronics box, in plenum chamber, left |
| T10f | 10-pin connector, on engine front |
| T10h | 10-pin connector, blue, connector point, electronics box, in plenum chamber, left |
| T14a | 14-pin connector, black, in engine compartment |
| T80 | 80-pin connector |
| B147 | Positive (+) connection -2- (87), in interior wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| E45 | Cruise control system switch** |
| E227 | Cruise control system (CCS) button (Set)** |
| F | Brake light switch |
| F36 | Clutch pedal switch |
| F47 | Cruise cont. sys. brake pedal switch |
| J248 | Diesel direct injection system control unit, centre in plenum chamber |
| S13 | Fuse in relay plate fuse box |
| T7 | 7-pin connector, next to steering column |
| T10d | 10-pin connector, green, in protective housing for connectors, left in plenum chamber |
| T10e | 10-pin connector, black, in protective housing for connectors, left in plenum chamber |
| T80 | 80-pin connector |
| A18 | Connection (54), in dash panel wiring harness |
| A80 | Connection -1- (X), in dash panel wiring harness |
| B146 | Positive connection -1- (87), in interior wiring harness |
| * | For vehicles with manual gearbox only |
| ** | For vehicles with cruise control system (CCS) only |
| J248 | Diesel direct injection system control unit, centre in plenum chamber |
| J359 | Low heat output relay, in protective housing left in engine compartment, control number(53)* |
| J360 | High heat output relay, in protective housing left in engine compartment, control number(53)* |
| Q7 | Coolant heating elements* |
| T6 | 6-pin connector, brown, in protective housing for connectors, left in plenum chamber |
| T10 | 10-pin connector, orange, in protective housing for connectors, left in plenum chamber |
| T80 | 80-pin connector |
| 10 | Earth point, in plenum chamber |
| 156 | Earth connection, in diesel direct injection system wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| D50 | Positive connection (30), in engine compartment wiring harness |
| D74 | Connection (86), in engine compartment wiring harness |
| D98 | Connection (glow plugs), in engine compartment wiring harness |
| * | For vehicles with manual gearbox only |
| G | Fuel gauge sender |
| G32 | Coolant shortage indicator sender |
| S5 | Fuse in fuse box |
| S232 | Fuse in fuse holder |
| S243 | Fuse in fuse holder |
| T6 | 6-pin connector, brown, in protective housing for connectors, left in plenum chamber |
| T14a | 14-pin connector, black, in engine compartment |
| 269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| A99 | Connection -1- (87), in dash panel wiring harness |
| A100 | Connection -2- (87), in dash panel wiring harness |
| B147 | Positive connection -2- (87), in interior wiring harness |
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