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Wiring Diagram VW JETTA 2000 - Starter - Alternator
| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J59 | X-contact relief relay |
| J207 | Starter inhibitor relay |
| J226 | Starter inhibitor and reversing light relay |
| 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 |
| T2e | 2-pin connector |
| T4a | 4-pin connector |
| T6 | 6-pin connector |
| 500 | Threaded connection 1 (30), on relay plate |
| 502 | Threaded connection 1 (30a) on relay plate |
| A41 | Positive connection (50), in dash panel wiring harness |
| * | Only models with automatic gearbox, signal output |
| *2 | Only models with manual gearbox |
| *3 | According to equipment |
Wiring Diagram VW JETTA 2000 - Motronic control unit
| J220 | Motronic control unit |
| N152 | Ignition transformer |
| P | Spark plug connector |
| Q | Spark plugs |
| S10 | Fuse 10 in fuse holder |
| S229 | Fuse 29 in fuse holder |
| T5 | 5-pin connector |
| T6 | 6-pin connector |
| T14a | 14-pin connector |
| T121 | 121-pin connector |
| 501 | Threaded connection 2 (30), on relay plate |
| A2 | Positive connection (15), in dash panel wiring harness |
| A32 | Positive connection (30), in dash panel wiring harness |
| A98 | Positive connection 4 (30), in dash panel wiring harness |
| A104 | Positive connection 2 (15), in dash panel wiring harness |
| D78 | Positive connection 1 (30a), in engine compartment wiring harness |
Wiring Diagram VW JETTA 2000 - Hall sender - Motronic control unit
| G40 | Hall sender |
| G186 | Throttle valve drive for electric throttle |
| G187 | Throttle valve drive angle sender 1 for electric throttle |
| G188 | Throttle valve drive angle sender 2 for electric throttle |
| J220 | Motronic control unit |
| J338 | Throttle valve module |
| T6 | 6-pin connector |
| T121 | 121-pin connector |
| 220 | Earth connection (sender earth), in engine wiring harness |
Wiring Diagram VW JETTA 2000 - Motronic control unit
| G2 | Coolant temperature display sender |
| G28 | Engine speed sender |
| G61 | Knock sensor 1 |
| G62 | Coolant temperature sender |
| G66 | Knock sensor 2 |
| J220 | Motronic control unit |
| T3 | 3-pin connector |
| T3a | 3-pin connector |
| T3b | 3-pin connector |
| T10e | 10-pin connector |
| T14a | 14-pin connector |
| T121 | 121-pin connector |
| D101 | Connection 1 in engine compartment wiring harness |
Wiring Diagram VW JETTA 2000 - Motronic control unit - Injector - cylinder 5
| J220 | Motronic control unit |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| N83 | Injector, cylinder 5 |
| S232 | Fuse 32 in fuse holder |
| T14a | 14-pin connector |
| T121 | 121-pin connector |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 608 | Earth point, central in plenum chamber |
| A101 | Connection 3 (87) in dash panel wiring harness |
| D95 | Connection (injectors), in engine compartment wiring harness |
Wiring Diagram VW JETTA 2000 - Motronic control unit - Injector - cylinder 6
| J104 | ABS control unit |
| J217 | Automatic gearbox control unit |
| J220 | Motronic control unit |
| N84 | Injector, cylinder 6 |
| T10w | 10-pin connector |
| T14a | 14-pin connector |
| T25 | 25-pin connector |
| T47a | 47-pin connector |
| T68 | 68-pin connector |
| T121 | 121-pin connector |
| 85 | Earth connection 1, in engine compartment wiring harness |
| 609 | Earth point, on right in plenum chamber |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| D95 | Connection (injectors), in engine compartment wiring harness |
| * | Only models with automatic gearbox, signal output |
Wiring Diagram VW JETTA 2000 - Motronic control unit - Radiator fan control unit - Variable intake manifold changeover valve - Brake pressure vacuum valve
| J217 | Automatic gearbox control unit |
| J220 | Motronic control unit |
| J293 | Radiator fan control unit |
| N79 | Heater element for crankcase breather |
| N156 | Variable intake manifold changeover valve |
| N314 | Brake pressure vacuum valve |
| T6 | 6-pin connector |
| T10w | 10-pin connector |
| T14a | 14-pin connector |
| T68b | 68-pin connector |
| T121 | 121-pin connector |
| V51 | Continued coolant circulation pump |
| 85 | Earth connection 1, in engine compartment wiring harness |
| A100 | Connection 2 (87) in dash panel wiring harness |
| D102 | Connection 2 in engine compartment wiring harness |
| * | Only models with automatic gearbox, signal output |
Wiring Diagram VW JETTA 2000 - Motronic control unit - Fuel system diagnostic pump
| E45 | Cruise control system switch |
| E227 | Cruise control system (CCS) SET button |
| F36 | Clutch pedal switch |
| J220 | Motronic control unit |
| T10e | 10-pin connector |
| T10h | 10-pin connector |
| T121 | 121-pin connector |
| V144 | Fuel system diagnostic pump |
| A20 | Positive connection (15a), in dash panel wiring harness |
| * | Only models with manual gearbox |
Wiring Diagram VW JETTA 2000 - Accelerator position sender - Motronic control unit
| F | Brake light switch |
| F47 | Brake pedal switch |
| G79 | Accelerator position sender |
| G185 | Accelerator position sender 2 |
| J17 | Fuel pump relay |
| J220 | Motronic control unit |
| J234 | Airbag control unit |
| S13 | Fuse 13 in fuse holder |
| T6 | 6-pin connector |
| T6b | 6-pin connector |
| T10d | 10-pin connector |
| T10e | 10-pin connector |
| T10h | 10-pin connector |
| T75 | 75-pin connector |
| T121 | 121-pin connector |
| A18 | Connection (54), in dash panel wiring harness |
| A20 | Positive connection (15a), in dash panel wiring harness |
| A125 | Connection (crash signal), in dash panel wiring harness |
| * | According to equipment |
Wiring Diagram VW JETTA 2000 - Motronic control unit
| G39 | Lambda probe |
| G130 | Lambda probe after catalytic converter |
| J220 | Motronic control unit |
| N80 | Activated charcoal filter solenoid valve 1 |
| T4a | 4-pin connector |
| T6c | 6-pin connector |
| T121 | 121-pin connector |
| E7 | Connection (87a), in Motronic wiring harness |
Wiring Diagram VW JETTA 2000 - Air mass meter - Motronic control unit - Secondary air inlet valve
| G70 | Air mass meter |
| J220 | Motronic control unit |
| J299 | Secondary air pump relay |
| N112 | Secondary air inlet valve |
| S234 | Fuse 34 in fuse holder |
| S243 | Fuse 43 in fuse holder |
| T6 | 6-pin connector |
| T10 | 10-pin connector |
| T121 | 121-pin connector |
| V101 | Secondary air pump motor |
| 151 | Earth connection 1, in front wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A99 | Connection 1 (87) in dash panel wiring harness |
| D103 | Connection 3 in engine compartment wiring harness |
| E30 | Connection (87a), in engine wiring harness |
Wiring Diagram VW JETTA 2000 -
| F1 | Oil pressure switch |
| G | Fuel gauge sender |
| G6 | Fuel system pressurisation pump |
| G22 | Speedometer sender |
| G32 | Coolant shortage indicator sender |
| S5 | Fuse 5 in fuse holder |
| S7 | Fuse 7 in fuse holder |
| S228 | Fuse 28 in fuse holder |
| T14 | 14-pin connector |
| T14a | 14-pin connector |
| 42 | Earth point, next to steering column |
| 81 | Earth connection 1, in dash panel wiring harness |
| 269 | Earth connection (sender earth) 1, in dash panel wiring harness |
| 504 | Threaded connection 1 (87), on relay plate |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A99 | Connection 1 (87) in dash panel wiring harness |
| A135 | Connection (oil pressure switch), in dash panel wiring harness |
| B163 | Positive connection 1 (15), in interior wiring harness |
| * | From May 2000 |
| *2 | Up to April 2000 |
| *3 | Only models with multifunction display |
Wiring Diagram VW JETTA 2000 -
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter |
| H3 | Buzzer and gong |
| J285 | Control unit in dash panel insert |
| J533 | Data bus diagnostic interface |
| K2 | Alternator warning lamp |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature and coolant shortage warning lamp |
| K105 | Reserve fuel warning lamp |
| K132 | Electronic power control fault lamp |
| T32 | 32-pin connector |
| 49 | Earth point, near ... |
| 135 | Earth connection 2, in dash panel wiring harness |
| A13 | Connection (door contact switch), in dash panel wiring harness |
| A27 | Connection (speed signal), in dash panel wiring harness |
| * | From May 2000 |
Wiring Diagram VW JETTA 2000 -
| E86 | Multifunction display call-up button |
| E109 | Multifunction display memory switch |
| G17 | Ambient temperature sensor |
| G21 | Speedometer |
| J119 | Multifunction indicator |
| K83 | Exhaust emissions warning lamp |
| T6 | 6-pin connector |
| T16 | 16-pin connector |
| T32 | 32-pin connector |
| A76 | Connection (K-diagnosis wire), in dash panel wiring harness |
| * | Only models with multifunction display |