Wiring Diagram VW PASSAT 2008 - Special signal system operating unit - blue flashing light 1 - special signal system with light bar and lettering
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| E676 | Special signal system operating unit |
| J519 | Onboard supply control unit |
| L140 | Flashing light 1, blue |
| L178 | Special signal system with light bar and lettering |
| T2xc | 2-pin connector |
| T2xe | 2-pin connector |
| T5xa | 5-pin connector |
| T8ab | 8-pin connector, special signals coupling point, right A-pillar |
| T9xa | 9-pin connector |
| T10ai | 10-pin connector, coupling point for special signals, right A-pillar |
| T10xa | 10-pin connector |
| X64 | Positive connection (30a), in wiring harness for tone sequence system |
| X180 | Positive connection 5 (30a), in siren wiring harness |
| * | Only models to April 2007 |
| ** | Only models from May 2007 |
Wiring Diagram VW PASSAT 2008 - Special signal system operating unit - blue flashing light 2 - special signal system with light bar and lettering
| E676 | Special signal system operating unit |
| J519 | Onboard supply control unit |
| L141 | Flashing light 2, blue |
| L178 | Special signal system with light bar and lettering |
| T1xa | Single connector |
| T2xd | 2-pin connector |
| T10ai | 10-pin connector, coupling point for special signals, right A-pillar |
| T10xa | 10-pin connector |
| 262 | Earth connection, in siren wiring harness |
| 440 | Earth connection 1, in siren system wiring harness |
| |
VW PASSAT 2008
Connector: | VW PASSAT 2008 Overview of control units
Overview of control units | | | | q | 50-pin connector assignment ⇒ applicable to October 2007 |
| q | 50-pin connector assignment ⇒ applicable to October 2007 |
| q | 75-pin connector assignment ⇒ applicable to October 2007 |
| q | 75-pin connector assignment ⇒ applicable to October 2007 |
| q | 100-pin connector assignment ⇒ applicable from November 2007 |
| q | 100-pin connector assignment ⇒ applicable from November 2007 |
| Climatronic control unit -J255- |
| q | Air conditioning system control unit -J301- |
| q | Climatronic control unit -J255- |
| q | B - Connector cruise control system (CCS) and turn signal |
| q | C - 20-pin connector -T20d- |
| q | D - 4-pin connector -T4- |
| q | E - Connector for wiper and multifunction display |
| q | F - Connector for steering angle sensor |
| q | G - Connector for airbag return spring/multifunction steering wheel |
| Control unit in dash panel insert -J285- |
| q | 36-pin connector -T36- ⇒ applicable to October 2008 |
| q | 32-pin connector -T32c- ⇒ applicable from November 2008 |
| q | A - 11-pin connector -T11- |
| q | B - 12-pin connector -T12i- |
| q | C - 12-pin connector -T12k- |
| q | D - 11-pin connector -T11a- |
| q | E - 16-pin connector -T16g- |
| q | F- 8-pin connector -T8t- |
| q | G - 12-pin connector -T12m- - |
| q | H- 12-pin connector -T12- |
| q | I - 2-pin connector -T2cp- |
| q | J - 6-pin connector -T6ap- |
| q | K - 10-pin connector -T10s- |
| q | L - 2-pin connector -T2cq- |
| under centre console at front -arrow- | | | |
| A - | Airbag control unit -J234- |
| A - | Airbag control unit -J234- |
| A - | Airbag control unit -J234- |
| Convenience system central control unit -J393- |
| under dash panel behind glove compartment -arrow- |
| | | A - | Convenience system central control unit -J393- |
| B - | 6-pin connector -T6an- |
| C - | 18-pin connector -T18a- |
| D - | 8-pin connector -T8r- |
| E - | 6-pin connector -T6ao- |
| F - | 18-pin connector -T18b- |
| G - | 18-pin connector -T18c- |
Note
| 18-pin connector -T18c- Discontinued on models with no entry and start authorisation |
| Air conditioning system control unit -J301- |
| A - | Air conditioning system control unit -J301- |
VW PASSAT 2008 Climatronic control unit J255 | Climatronic control unit -J255- |
| A - | Climatronic control unit -J255- |
VW PASSAT 2008 Cornering light and headlight range control unit J745 | Cornering light and headlight range control unit -J745- |
| behind glove compartment on left -arrow A- |
| |
VW PASSAT 2008 Heated rear seats control unit J786Heated rear seats control unit -J786- |
| under seat on front right -arrow- . | | | |
VW PASSAT 2008 Seat occupied recognition control unit J706Seat occupied recognition control unit -J706- |
| on front passenger seat frame -arrow- | | | |
| A - | Seat occupied recognition control unit -J706- |
| Aerial selection control unit -J515- |
| under seat on front right -arrow B- . |
Note
| The aerial selection control unit -J515- is installed from May 2006 for Japanese markets only. Discontinued for all other countries. |
| |
VW PASSAT 2008 Front passenger door control unit J387Front passenger door control unit -J387- |
| on inside of front passenger door -arrow- |
VW PASSAT 2008 Driver door control unit J386Driver door control unit -J386- |
| on inside of driver's door -arrow- | Note: | The illustration shows the driver side. The front passenger side is similar. | | | |
| A - | Front passenger door control unit -J387- , Driver door control unit -J386- |
VW PASSAT 2008 | Mobile telephone operating electronics control unit -J412- / Telephone controls control unit -J738- |
| under seat on front right -arrow A- . |
| | | A - | Mobile telephone operating electronics control unit -J412- |
| Control unit for electromechanical parking brake -J540- |
| on rear of centre tunnel -arrow- |
| | | A - | Control unit for electromechanical parking brake -J540- |
| Rear right door control unit -J389- |
| on inside of rear door on front passenger side -arrow- |
| Rear left door control unit -J388- |
| on inside of rear door on driver's side -arrow- |
Note:
| The illustration shows the driver side. The front passenger side is similar. |
| | | A - | Rear right door control unit -J389- , Rear left door control unit -J388- |
| Fuel pump control unit -J538- |
| under rear right seat, on fuel delivery unit -arrow- |
| | | A - | Fuel pump control unit -J538- |
| Seat and steering column adjustment control unit with memory -J136- |
| under driver's seat -arrow- . |
| | | A - | Seat and steering column adjustment control unit with memory -J136- |
| B - | 26-pin connector -T26b- |
| C - | 6-pin connector -T6bj- |
| D - | 6-pin connector -T6bq- |
| E - | 6-pin connector -T6bi- |
| F - | 6-pin connector -T6bh- |
| G - | 6-pin connector -T6bp- |
| H - | 4-pin connector -T4br- |
| I - | 2-pin connector -T2- , Not assigned |
| J - | 2-pin connector -T2- , Not assigned |
| K - | 6-pin connector -T6- , Not assigned |
| L - | 6-pin connector -T6- , Not assigned |
| M - | 6-pin connector -T6- , Not assigned |
| N - | 6-pin connector -T6- , Not assigned |
| O - | 16-pin connector -T16- , Not assigned |
VW PASSAT 2008 Special vehicle control unit J608Special vehicle control unit -J608- |
| under driver's seat -arrow- . | | | |
VW PASSAT 2008 Heated front seats control unit J774Heated front seats control unit -J774- |
| on driver's seat frame -arrow- | | | |
VW PASSAT 2008 Steering column electronics control unit J527Steering column electronics control unit -J527- |
| under steering column, near steering column switch -arrow- | | | |
| A - | Steering column electronics control unit -J527- |
| C - | 20-pin connector -T20d- |
| 1 - | Ignition key withdrawal lock |
| 2 - | Immobiliser reading unit |
| 3 - | Convenience CAN bus, low |
| 4 - | Convenience CAN bus, high |
| 5 - | Powertrain CAN, screening |
| 9 - | Power supply to control unit for steering column electronics |
| 16 - | Cruise control system, out |
| 18 - | Power supply to control unit for steering column electronics (terminal 30) |
| E - | Connector for wiper and multifunction display: |
| 1 - | Earth for intermittent windscreen wiper switch |
| 4 - | Potentiometer for intermittent stages |
| 5 - | Multifunction display signal |
| 6 - | Earth for multifunction display and interval |
| G - | Connector for airbag return spring/multifunction steering wheel: |
| 7 - | Earth for return spring, multifunction steering wheel and horn |
| 8 - | Horn or CCS off (with multifunction steering wheel) |
| 10 - | Power supply for multifunction steering wheel (terminal 15) |
| Dash panel insert -K- / Control unit in dash panel insert -J285- |
| 1 - | Terminal 15 voltage supply |
| 2 - | Terminal 30 voltage supply |
| 5 - | Brake fluid level warning lamp |
| 6 - | Warning lamp for electric parking brake and handbrake |
| 12 - | Diagnostic interface for dash panel CAN data bus, low |
| 13 - | Diagnostic interface for dash panel CAN data bus, high |
| 14 - | Dash panel CAN screening |
| 15 - | Dash panel CAN wake-up wire |
| 16 - | Fuel gauge sender (full), only with all-wheel drive |
| 17 - | Fuel gauge sender (full) |
| 18 - | Fuel gauge sender (empty) |
| 22 - | Front left brake pad wear sender |
| 23 - | Fuel gauge sender (empty), only with all-wheel drive |
| 25 - | Oil pressure warning lamp |
| 26 - | Oil level and oil temperature sender |
| 28 - | Speed signal, sliding sunroof adjustment control unit output, control unit with display for radio and navigation system |
| 33 - | Terminal 31, sensor earth |
| 34 - | Washer fluid level warning lamp |
| 35 - | Coolant temperature and coolant shortage warning lamp |
| 36 - | Ambient temperature sensor |
| Note | applicable to October 2008 | | | |
| 1 - | Fuel gauge sender (full) |
| 2 - | Fuel gauge sender (empty) |
| 3 - | Fuel gauge sender (full), only with all-wheel drive |
| 4 - | Fuel gauge sender (empty), only with all-wheel drive |
| 9 - | Speed signal, sliding sunroof adjustment control unit output, control unit with display for radio and navigation system |
| 11 - | Oil level and oil temperature sender |
| 15 - | Front left brake pad wear sender |
| 17 - | Washer fluid level warning lamp |
| 18 - | Coolant temperature and coolant shortage warning lamp |
| 19 - | Ambient temperature sensor |
| 20 - | Terminal 31, sensor earth |
| 25 - | Warning lamp for electric parking brake and handbrake |
| 26 - | Brake fluid level warning lamp |
| 27 - | Oil pressure warning lamp |
| 28 - | Diagnostic interface for dash panel CAN data bus, high |
| 29 - | Diagnostic interface for dash panel CAN data bus, low |
| 31 - | Terminal 15 voltage supply |
| 32 - | Terminal 30 voltage supply |
| Note | applicable from November 2008 | | | |
VW PASSAT 2008 Electronic steering column lock control unit J764Electronic steering column lock control unit -J764- |
| on steering column -arrow- | | | |
VW PASSAT 2008 Onboard supply control unit J519Onboard supply control unit -J519- |
| under dash panel on driver side, below relay carrier. | | | |
| A - | 11-pin connector -T11- |
| 2 - | Right dipped beam bulb |
| 5 - | Right gas discharge (xenon) bulb |
| 6 - | Front right turn signal bulb |
| 10 - | Electric fuel pump 2 relay |
| 11 - | Terminal 50 voltage supply relay |
| C - | 12-pin connector -T12k- |
| 1 - | Heated driver seat control unit, heated front passenger seat control unit |
| 2 - | Left brake light bulb |
| 3 - | Right fog light bulb (right-hand drive only) |
| 8 - | Registration plate left light, number plate right light |
| 9 - | High level brake light bulb |
| 10 - | Left tail light bulb (side light) |
| 11 - | Rear left turn signal bulb |
| 12 - | Left reversing light bulb (right-hand drive only) |
| E - | 16-pin connector -T16g- |
| 1 - | Lighting switch terminal 58 |
| 7 - | Earth (for manual gearbox only), mechatronics for dual clutch gearbox, multifunction switch (for automatic gearbox only) |
| 8 - | Lighting switch terminal 56 |
| 13 - | Light switch (rear fog light) |
| 14 - | Light switch (assistance light) |
| 16 - | Light switch (day driving light) |
| F - | 8-pin connector -T8t- |
| 1 - | Terminal 50 voltage supply relay |
| 2 - | Terminal 15 voltage supply relay |
| 3 - | Windscreen wiper motor, rain and light detector sensor (LIN bus) |
| 5 - | Bonnet contact switch |
| 6 - | Reversing light switch |
| G - | 12-pin connector -T12- |
| I - | J - | 6-pin connector -T6ap- |
| 1 - | Fuse for washer pump of windscreen and rear window (input) |
| 2 - | Motor for rear window wiper, washer pump for windscreen and rear window (rear) |
| 4 - | Motor for rear window wiper, washer pump for windscreen and rear window (front) |
| 6 - | Treble tone horn, bass tone horn |
| K - | 2-pin connector -T2cq- |
| 1 - | Fuse for terminal 15 vehicle interior (input) |
| 2 - | Terminal 15 vehicle interior (output) |
| Driving school mode relay -J746- | | in driver footwell, behind relay carrier -arrow- |
VW PASSAT 2008 Taxi alarm remote control control unit J601Taxi alarm remote control control unit -J601- |
| in driver footwell, behind relay carrier -arrow- . | | | |
| Park assist steering control unit -J791- / Parking aid control unit -J446- | | under dash panel on left, behind relay carrier above onboard supply control unit -arrow- | | | |
VW PASSAT 2008 Data bus diagnostic interface J533 | Data bus diagnostic interface -J533- | | in driver's footwell, near pedal cluster -arrow- | | in centre console under radio unit/navigation system | | |
| A - | Data bus diagnostic interface -J533- | VW PASSAT 2008 | |
VW PASSAT 2008 Overview of earth points in engine compartment | Overview of earth points in engine compartment | | 15 | Earth point, on cylinder head | | 685 | Earth point 1 at front of right longitudinal member | | 13 | Earth point, on right in engine compartment | | 646 | Earth point 2, on bulkhead | | 647 | Earth point 3, on bulkhead | | 645 | Earth point 1, on bulkhead | | 1 | Earth strap, battery - body | | 12 | Earth point, on left in engine compartment | | 673 | Earth point 3, on front of left longitudinal member | | 652 | Earth point, engine and gearbox earth | | 672 | Earth point 2, on front of left longitudinal member | | 671 | Earth point 1, on front of left longitudinal member |
| 685 | Earth point 1 at front of right longitudinal member -arrow- | | | | | 13 | Earth point on right in engine compartment -arrow- | | | | | 646 | Earth point 2 on bulkhead -arrow- | | | | | 645 | Earth point 1 on bulkhead -arrow A- | | 647 | Earth point 3 on bulkhead -arrow B- | | | | | 1 | Earth strap, battery - body -arrow A- | | 12 | Earth point on left in engine compartment -arrow B- | | | | | 652 | Earth point for engine and gearbox earth -arrow A- | | 672 | Earth point 2 at front of left longitudinal member -arrow C- | Note | Earth point 672 is discontinued from November 2006 | | 673 | Earth point 3 at front of left longitudinal member -arrow D- | | | | | 15 | Earth point on cylinder head -arrow- | | | | | Overview of earth points in vehicle interior | | 610 | Earth point (audio), front below centre console | | 638 | Earth point, on right A-pillar | | 683 | Earth point on front of right side member | | 687 | Earth point 1 on centre tunnel | | 688 | Earth point 2 on centre tunnel | | 78 | Earth point, lower part of right B-pillar | | 77 | Earth point, lower part of left B-pillar | | 689 | Earth point, at front, central in roof | | 684 | Earth point on front of left side member | | 42 | Earth point, next to steering column | | 639 | Earth point, left A-pillar |
| 610 | Earth point (audio), at front under centre console -arrow- | | | | | 638 | Earth point on right A-pillar -arrow- | | | | | 683 | Earth point on front of right side member -arrow- | | | | | 687 | Earth point 1 on centre tunnel -arrow A- | | 688 | Earth point 2 on centre tunnel -arrow B- | | | | | 78 | Earth point, lower part of right B-pillar -arrow- | | | | | 77 | Earth point, lower part of left B-pillar -arrow- | | | | | 689 | Earth point, front centre of roof -arrow- | | | | | 639 | Earth point on left A-pillar -arrow B- | | 684 | Earth point on front of left side member -arrow A- | | | | | 42 | Earth point, next to steering column -arrow- | | | | | Overview of earth points in luggage compartment | | 51 | Earth point, on right in luggage compartment | | 675 | Earth point 2, on right in luggage compartment | | 676 | Earth point 2, on left in luggage compartment | | 50 | Earth point, on left in luggage compartment |
| 51 | Earth point on right in luggage compartment -arrow- | | | | | 675 | Earth point 2 on right in luggage compartment -arrow- | Note | Earth point 675 is discontinued from May 2006 | | | | | 676 | Earth point 2 on left in luggage compartment -arrow- | | | | | 50 | Earth point on left in luggage compartment -arrow- | | | | |
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