| A | Battery |
| B | Starter |
| D | Ignition/starter switch |
| J59 | X contact relief relay |
| S61 | Socket fuse, above the relay plate |
| S127 | Heated windscreen fuse, above the relay plate |
| 1 | Earth strap, battery body |
| 2 | Earth strap, gearbox - body |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| A80 | Connection -1- (X), in dash panel wiring harness |
| C27 | Positive connection -2- (30), in headlight wiring harness |
| B | Starter |
| D2 | Immobilizer reading coil |
| J... | Engine control units, left behind dash panel |
| J361 | Simos control unit, left behind dash panel (engine code ADY only) |
| J362 | Immobilizer control unit, left behind dash panel |
| T3 | 3-pin connector, on immobilizer control unit |
| T4d | 4-pin connector, behind the relay plate |
| T6 | 6-pin connector, on immobilizer control unit |
| T68 | 68-pin connector, on Simos control unit (engine code ADY only) |
| 32 | Earth point, behind dash panel, left |
| 247 | Earth connection (immobilizer), in dash panel wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| E9 | Fresh air blower switch |
| E159 | Fresh air and air recirculation switch |
| J... | Engine control units, left behind dash panel |
| J363 | Current supply relay for Simos control unit (engine code ADY only) |
| K114 | Fresh air/air recirculation warning lamp |
| L16 | Fresh air controls light bulb |
| N24 | Fresh air blower with overheating fuse series resistor |
| T2 | 2-pin connector, on fresh air blower switch |
| T3c | 3-pin connector |
| T4a | 4-pin connector, on fresh air blower series resistance |
| T8d | 8-pin connector, on fresh air blower switch |
| V2 | Fresh air blower |
| 33 | Earth point, behind dash panel, right |
| 81 | Earth connection -1-, in dash panel wiring harness |
| F1 | Oil pressure switch |
| F22 | Oil pressure switch (0.3 bar) |
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G2 | Coolant temperature sender |
| G3 | Coolant temperature gauge |
| G22 | Speedometer sender (Hall sender on gearbox) |
| H11 | Oil pressure warning buzzer |
| J285 | Control unit with display in dash panel insert |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| N157 | Ignition transformer output stage (engine code ADY only) |
| T28 | 28-pin connector |
| T28b | 28-pin connector, left on engine (engine code ADY only) |
| 15 | Earth point, on cylinder head |
| F9 | Handbrake warning switch |
| F34 | Brake fluid level warning contact |
| G | Fuel gauge sender |
| G5 | Rev. counter |
| G32 | Coolant shortage indicator sender |
| J285 | Control unit with display in dash panel insert |
| K1 | Main beam warning lamp |
| K7 | Dual circuit brake/handbrake warning lamp |
| T6a | 6-pin connector, behind relay plate |
| T28 | 28-pin connector, on dash panel insert |
| T28b | 28-pin connector, left on engine (engine code ADY only) |
| W6 | Glove box light |
| 15 | Earth point, on cylinder head |
| 81 | Earth connection -1-, in dash panel wiring harness |
| 87 | Earth connection -2-, in rear wiring harness |
| 119 | Earth connection -1-, in headlight wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| * | Wire replaces dotted wire |
| --- | Wire deleted |
| F2 | Door contact switch, driver side |
| F3 | Door contact switch, front passenger's side |
| F10 | Rear left door contact switch |
| F11 | Rear right door contact switch |
| L75 | Digital display illumination |
| T8b | 8-pin connector, left behind A-pillar/dash panel trim |
| TV17 | Door contact switch junction box, left behind dash panel |
| W | Interior light, front |
| W1 | Rear interior light/load area |
| Y2 | Digital clock, front near interior light |
| 71 | Earth point, front roof rail |
| 86 | Earth connection -1-, in rear wiring harness |
| 87 | Earth connection -2-, in rear wiring harness |
| 128 | Earth connection -1-, in interior light wiring harness |
| 196 | Earth connection -3-, in rear wiring harness |
| R2 | Connection (door contact switch, left), in door contact switch wiring harness |
| R3 | Connection (door contact switch, right and left), in door contact switch wiring harness |
| R4 | Connection -1-, in interior light/door contact switch wiring harness |
| R6 | Positive connection -1-, in interior light wiring harness |
| F160 | Door contact switch rear (tailgate/boot lid) |
| H1 | Horn/dual tone horn |
| J4 | Dual tone horn relay |
| T5d | 5-pin connector, left behind lower D-pillar trim |
| U5 | 12 V-socket, rear left in luggage compartment |
| W18 | Luggage compartment light, left |
| W35 | Luggage compartment light |
| 57 | Earth point, left rear pillar |
| 98 | Earth connection, in tailgate/boot lid wiring harness |
| 196 | Earth connection -3-, in rear wiring harness |
| C12 | Positive connection -1-, in headlight wiring harness |
| C33 | Connection -5-, in headlight wiring harness |
| W9 | Positive connection (30), in rear wiring harness |
| W15 | Connection -1- (luggage compartment light), in rear wiring harness |
| W19 | Connection -2- (luggage compartment light), in rear wiring harness |
| L15 | Ashtray light bulb |
| L28 | Cigarette lighter light bulb |
| R | Radio |
| T1a | Single connector |
| T1v | Single connector |
| T1w | Single connector |
| T1x | Single connector |
| T1y | Single connector |
| T2a | 2-pin connector |
| T2b | 2-pin connector |
| T2c | 2-pin connector |
| T6f | 6-pin connector, behind the relay plate |
| T8 | 8-pin connector, on radio |
| T16 | 16-pin connector, under cover/ashtray housing, - Self-diagnosis connection for V.A.G 1551 - |
| TV14 | Self diagnosis junction box, left behind dash panel |
| U1 | Cigarette lighter |
| 44 | Earth point, A-pillar left, bottom |
| 81 | Earth connection -1-, in dash panel wiring harness |
| A4 | Positive (+) connection (58b), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| A78 | Connection (SU), in dash panel wiring harness |
| E102 | Headlight range control adjuster |
| T7d | 7-pin connector, left behind headlights |
| T7e | 7-pin connector, right behind headlights |
| T8g | 8-pin connector, behind the relay plate |
| V48 | Headlight range control motor, left |
| V49 | Headlight range control motor, right |
| 30 | Earth point -1-, next to relay plate (earth connection) |
| 44 | Earth point, A-pillar left, bottom |
| C15 | Connection -1-, in headlight wiring harness |
| C16 | Connection -2-, in headlight wiring harness |
| L1 | Twin filament bulb/sealed beam insert, left |
| L2 | Twin filament bulb/sealed beam insert, right |
| L22 | Fog light bulb, left |
| L23 | Fog light bulb, right |
| L29 | Engine compartment light bulb |
| M1 | Side light bulb, left |
| M3 | Side light bulb, right |
| T7d | 7-pin connector, left behind headlights |
| T7e | 7-pin connector, right behind headlights |
| 12 | Earth point, left in engine compartment, under battery |
| 13 | Earth point, in engine compartment, right |
| 119 | Earth connection -1-, in headlight wiring harness |
| 120 | Earth connection -2-, in headlight wiring harness |
| C25 | Connection (fog light), in front lighting wiring harness |
| C28 | Connection -1- (56b), in headlight wiring harness |
| C29 | Connection -2- (56b), in headlight wiring harness |
| E4 | Headlight dipper/flasher switch |
| J33 | Main and dip beam relay (twin headlights), above relay plate |
| M5 | Turn signal bulb, front left |
| M7 | Turn signal bulb, front right |
| M18 | Side turn signal bulb, left |
| M19 | Side turn signal bulb, right |
| T2e | 2-pin connector |
| T8g | 8-pin connector, behind relay plate |
| T10 | 10-pin connector |
| 119 | Earth connection -1-, in headlight wiring harness |
| 120 | Earth connection -2-, in headlight wiring harness |
| A9 | Positive (+) connection (56b), in dash panel wiring harness |
| A32 | Positive connection (30), in dash panel wiring harness |
| C19 | Connection -1- (right turn signal), in headlight wiring harness |
| C20 | Connection -1- (turn signal, left), in headlight wiring harness |
| C30 | Connection -2- (right turn signal), in headlight wiring harness |
| F | Brake light switch |
| J152 | Lights switched on warning buzzer |
| M2 | Tail light bulb, right |
| M4 | Tail light bulb, left |
| M6 | Turn signal bulb, rear left |
| M8 | Turn signal bulb, rear right |
| M21 | Brake and tail light bulb, left |
| M22 | Brake and tail light bulb, right |
| T4e | pin connector, left on tail light |
| T4f | 4-pin connector, right on tail light |
| T8f | 8-pin connector, left behind lower D-pillar trim |
| TV11 | Terminal 54 junction box, left behind dash panel |
| 196 | Earth connection -3-, in rear wiring harness |
| W1 | Positive (+) connection (54), in rear wiring harness |
| W6 | Connection (left turn signal), in rear wiring harness |
| W7 | Connection (right turn signal), in rear wiring harness |
| W13 | Connection (58L), in rear wiring harness |
| W14 | Connection (58R), in rear wiring harness |
| F4 | Reversing light switch |
| L46 | Rear fog light bulb, left |
| L47 | Rear fog light bulb, right |
| M16 | Reversing light bulb, left |
| M17 | Reversing light bulb, right |
| T1d | Single connector |
| T4b | 4-pin connector |
| T4c | 4-pin connector |
| T5d | 5-pin connector, left behind lower D-pillar trim |
| TV8 | Terminal 58b junction box, left behind dash panel |
| TV15 | Wiring connector, right behind lower D-pillar trim |
| X | Number plate light |
| 98 | Earth connection, in tailgate/boot lid wiring harness |
| E161 | Heated rear window and exterior mirror switch |
| E180 | Heated windscreen switch |
| J9 | Heated rear window relay |
| J47 | Heated windscreen relay, left behind dash panel |
| J164 | Warm air bloxer cut-off relay, left behind dash panel (see heating and ventilation) |
| K10 | Heated rear window warning lamp |
| K122 | Heated windscreen warning lamp |
| L39 | Heated rear window switch bulb |
| T1c | Single connector, behind the relay plate |
| T1o | Single connector, left lower D-pillar |
| T3b | 3-pin connector, behind the relay plate |
| TV5 | Terminal 15a junction box |
| Z1 | Heated rear window |
| Z2 | Heated windscreen |
| 30 | Earth point -1-, next to relay plate (earth connection) |
| 81 | Earth connection -1-, in dash panel wiring harness |
| 98 | Earth connection, in tailgate/boot lid wiring harness |
| A81 | Positive connection -2- (X), in dash panel wiring harness |
| A82 | Connection (windscreen heater), in dash panel wiring harness |
| Z5 | Connection, in window heating wiring harness |
| Z6 | Positive connection (x), in window heating wiring harness |
| J31 | Automatic intermittent wash/wipe relay |
| J384 | Wiper motor relief relay, above the relay plate |
| J400 | Wiper motor control unit, on wiper frame with rods |
| S128 | Wiper motor fuse, above the relay plate |
| T2g | 2-pin connector, near left spray jet |
| T2h | 2-pin connector, near right spray jet |
| T5 | 5-pin connector, near windscreen wiper motor |
| T6b | 6-pin connector |
| T8e | 8-pin connector, behind the relay plate |
| V | Windscreen wiper motor |
| Z20 | Heater element, left washer jet |
| Z21 | Heater element, right washer jet |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| D70 | Connection (53a), in engine compartment wiring harness |
| E22 | Intermittent wiper switch |
| H | Horn plate |
| J30 | Rear window wiper/washer relay |
| T2k | 2-pin connector, left behind lower D-pillar trim |
| T3k | 3-pin connector, on rear window wiper motor |
| T12 | 12-pin connector |
| V12 | Rear window wiper motor |
| V59 | Windscreen and rear window washer pump |
| 57 | Earth point, left rear pillar |
| 81 | Earth connection -1-, in dash panel wiring harness |
| 98 | Earth connection, in tailgate/boot lid wiring harness |
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