Wiring Diagram VW NEW BEETLE 2003 - Starter - alternator - voltage regulator
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Automotive Electricians Portal FZCO
| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J59 | X-contact relief relay |
| J226 | Starter inhibitor and reversing light relay |
| S162 | Fuse 1 (30), in fuse holder on battery |
| S163 | Fuse 2 (30), in fuse holder on battery |
| S176 | Fuse 4 (30), in fuse holder on battery |
| S177 | Fuse 5 (30), in fuse holder on battery |
| T4g | 4-pin connector, in engine compartment, near alternator |
| T6 | 6-pin connector, brown, coupling station on electronics box, on left in plenum chamber |
| T10d | 10-pin connector, white, coupling station on electronics box, on left in plenum chamber |
| 500 | Screw connection 1 (30), on relay plate |
| 502 | Screw connection (30a), on relay plate |
| D97 | Connection (50), in engine compartment wiring harness |
| only manual gearbox |
| only automatic gearbox |
Wiring Diagram VW NEW BEETLE 2003 - Current supply relay for Simos control unit - fuses
| D | Ignition/starter switch |
| J363 | Current supply relay for Simos control unit, in protective housing |
| S5 | Fuse in relay plate fuse holder |
| S7 | Fuse in relay plate fuse holder |
| S229 | Fuse in fuse holder |
| S231 | Fuse in fuse holder |
| S237 | Fuse in fuse holder |
| T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
| T14 | 14-pin connector, in cable channel left in engine compartment |
| 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 |
| A40 | Positive connection -1- (30), in dash panel wiring harness |
| A104 | Positive connection 2 (15), in dash panel wiring harness |
| D51 | Positive connection 1 (15), in engine compartment wiring harness |
| * | in the relay box and fuse box, in left engine compartment (control number 429) |
Wiring Diagram VW NEW BEETLE 2003 - Throttle valve potentiometer - Simos control unit - ignition transformer - spark plug connector - spark plugs - throttle valve positioner
| G69 | Throttle valve potentiometer |
| G88 | Throttle valve positioner potentiometer |
| J338 | Throttle valve module |
| J361 | Simos control unit, in centre plenum chamber |
| N152 | Ignition transformer |
| P | Spark plug connector |
| Q | Spark plugs |
| T4j | 4-pin connector, on ignition transformer |
| T121 | 121-pin connector, on Simos control unit |
| V60 | Throttle valve positioner |
| D51 | Positive connection 1 (15), in engine compartment wiring harness |
Wiring Diagram VW NEW BEETLE 2003 - Power assisted steering pressure switch - coolant temperature sender - engine speed sender - knock sensor 1 - coolant temperature sender - Simos control unit
| F88 | Power assisted steering pressure switch |
| G2 | Coolant temperature sender |
| G28 | Engine speed sender |
| G61 | Knock sensor 1 |
| G62 | Coolant temperature sender |
| J361 | Simos control unit, in centre plenum chamber |
| T2f | 2-pin connector, on front of engine |
| T3b | 3-pin connector, grey, on front of engine |
| T14 | 14-pin connector, in cable channel left in engine compartment |
| T121 | 121-pin connector, on Simos control unit |
Wiring Diagram VW NEW BEETLE 2003 - Hall sender - exhaust gas recirculation potentiometer - Simos control unit - exhaust gas recirculation valve - variable intake manifold change-over valve
| G40 | Hall sender |
| G212 | Exhaust gas recirculation potentiometer |
| J217 | Automatic gearbox control unit |
| J361 | Simos control unit, in centre plenum chamber |
| N18 | Exhaust gas recirculation valve |
| N156 | Variable intake manifold change-over valve |
| T2a | 2-pin connector, in cable channel left in engine compartment |
| T3c | 3-pin connector, on front of engine |
| T6k | 6-pin connector, on exhaust gas recirculation potentiometer |
| T10 | 10-pin connector, orange, coupling station on electronics box, on left in plenum chamber |
| T68 | 68-pin connector, on automatic gearbox control unit |
| T121 | 121-pin connector, on Simos control unit |
| * | only automatic gearbox |
| ** | connection air conditioning system |
Wiring Diagram VW NEW BEETLE 2003 - Secondary air pump relay - Simos control unit - engine speed governor control unit - secondary air pump motor - vacuum pump for brakes
| J217 | Automatic gearbox control unit |
| J299 | Secondary air pump relay |
| J361 | Simos control unit, in centre plenum chamber |
| J542 | Engine speed governor control unit |
| S283 | Brake vacuum pump fuse |
| T6m | 6-pin connector, in engine compartment |
| T6n | 6-pin connector, on vacuum pump for brakes |
| T10 | 10-pin connector, orange, coupling station on electronics box, on left in plenum chamber |
| T10a | 10-pin connector, grey, coupling station on electronics box, on left in plenum chamber |
| T68 | 68-pin connector |
| T121 | 121-pin connector, on Simos control unit |
| V101 | Secondary air pump motor |
| V192 | Vacuum pump for brakes |
| 132 | Earth connection -3-, in engine compartment wiring harness |
| 608 | Earth point, in centre of plenum chamber |
| 609 | Earth point, on right in plenum chamber |
| A70 | Connection (15a, fuse 231), in dash panel wiring harness |
| D101 | Connection 1, in engine compartment wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| * | for automatic gearbox only |
| ** | applicable up to February 2003 |
| *** | in the relay box and fuse box, in left engine compartment (control number 100) |
Wiring Diagram VW NEW BEETLE 2003 - Simos control unit - injectors
| J361 | Simos control unit, in centre plenum chamber |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| S232 | Fuse in fuse holder |
| T10 | 10-pin connector, orange, coupling station on electronics box, on left in plenum chamber |
| T14 | 14-pin connector, in engine compartment |
| T121 | 121-pin connector, on Simos control unit |
| A151 | Connection 4 (87), in dash panel wiring harness |
| D95 | Connection (injectors), in engine compartment wiring harness |
Wiring Diagram VW NEW BEETLE 2003 - Lambda probe - throttle valve drive angle sender 1 (electric power control) - throttle valve drive angle sender 2 (electric power control) - Simos control unit - Lambda probe heater
| G39 | Lambda probe |
| G187 | Throttle valve drive angle sender 1 (electric power control) |
| G188 | Throttle valve drive angle sender 2 (electric power control) |
| J217 | Automatic gearbox control unit |
| J361 | Simos control unit, in centre plenum chamber |
| T6b | 6-pin connector, black, vehicle underside, next left catalytic converter |
| T6l | 6-pin connector, on angle sender |
| T10d | 10-pin connector, white, coupling station on electronics box, on left in plenum chamber |
| T10h | 10-pin connector, blue, coupling station on electronics box, on left in plenum chamber |
| T68 | 68-pin connector, on automatic gearbox control unit |
| T121 | 121-pin connector, on Simos control unit |
| Z19 | Lambda probe heater |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| * | for automatic gearbox only |
Wiring Diagram VW NEW BEETLE 2003 - Cruise control system switch - cruise control system 3 (CCS) button - Simos control unit
| E45 | Cruise control system switch |
| E227 | Cruise control system 3 (CCS) button |
| J361 | Simos control unit, in centre plenum chamber |
| T7b | 7-pin connector, next to steering column |
| T10e | 10-pin connector, black, coupling station on electronics box, on left in plenum chamber |
| T121 | 121-pin connector, on Simos control unit |
| A20 | Connection (15a), in dash panel wiring harness |
| * | for models with CCS only |
Wiring Diagram VW NEW BEETLE 2003 - Brake light switch - clutch pedal switch - Simos control unit - brake pedal switch
| F | Brake light switch |
| F36 | Clutch pedal switch |
| F63 | Brake pedal switch |
| J361 | Simos control unit, in centre plenum chamber |
| M9 | Left brake light bulb |
| M10 | Right brake light bulb |
| M25 | High level brake light bulb |
| S13 | Fuse in relay plate fuse holder |
| T10d | 10-pin connector, white, coupling station on electronics box, on left in plenum chamber |
| T10e | 10-pin connector, black, coupling station on electronics box, on left in plenum chamber |
| T121 | 121-pin connector, on Simos control unit |
| A18 | Connection (54), in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| only manual gearbox |
Wiring Diagram VW NEW BEETLE 2003 - Air mass meter - lambda probe after catalytic converter - Simos control unit - fuel shut-off control unit for crash - activated charcoal filter system solenoid valve 1 - lambda probe 1 heater after catalytic converter
| G70 | Air mass meter |
| G130 | Lambda probe after catalytic converter |
| J234 | Airbag control unit |
| J361 | Simos control unit, in centre plenum chamber |
| J491 | Fuel shut-off control unit for crash |
| N80 | Activated charcoal filter system solenoid valve 1 |
| T4d | 4-pin connector, brown, vehicle underside, next left catalytic converter |
| T6 | 6-pin connector, brown, coupling station on electronics box, on left in plenum chamber |
| T10 | 10-pin connector, orange, coupling station on electronics box, on left in plenum chamber |
| T75 | 75-pin connector, on airbag control unit |
| T121 | 121-pin connector, on Simos control unit |
| Z29 | Lambda probe 1 heater after catalytic converter |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A125 | Connection (crash signal), in dash panel wiring harness |
Wiring Diagram VW NEW BEETLE 2003 - Fuel gauge sender - fuel system pressurisation pump - heater element for crankcase breather
| G | Fuel gauge sender |
| G6 | Fuel system pressurisation pump |
| G32 | Coolant shortage indicator sender |
| N79 | Heater element for crankcase breather |
| S228 | Fuse in fuse holder |
| S234 | Fuse in fuse holder |
| S243 | Fuse in fuse holder |
| T6 | 6-pin connector, brown, coupling station on electronics box, on left in plenum chamber |
| T14 | 14-pin connector, in engine compartment |
| 42 | Earth point, next to steering column |
| 49 | Earth point, on steering column |
| 81 | Earth connection 1, in dash panel wiring harness |
| 269 | Earth connection (sender earth) 1, in dash panel wiring harness |
| 504 | Screw connection 1 (87), on relay plate |
| A99 | Connection 1 (87), in dash panel wiring harness |
| B147 | Positive connection 2 (87), in interior wiring harness |
| E30 | Connection (87a), in engine wiring harness |
| * | for models with heater element for crankcase breather only |
Wiring Diagram VW NEW BEETLE 2003 - Oil pressure switch - speedometer sender - oil level and oil temperature sender - control unit in dash panel insert
| F1 | Oil pressure switch |
| G22 | Speedometer sender |
| G266 | Oil level and oil temperature sender |
| J285 | Control unit in dash panel insert |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature and coolant shortage warning lamp |
| K38 | Oil level warning lamp |
| T14 | 14-pin connector, in engine compartment |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| 281 | Earth connection 1, in engine wiring harness |
| 608 | Earth point, in centre of plenum chamber |
| A38 | Positive connection -2- (15a), in dash panel wiring harness |
| * | output for signal earth |
Wiring Diagram VW NEW BEETLE 2003 - Fuel gauge - coolant temperature gauge - rev. counter - speedometer - control unit in dash panel insert - data bus diagnostic interface - alternator warning lamp - reserve fuel warning lamp
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter |
| G21 | Speedometer |
| H3 | Buzzer and gong |
| J285 | Control unit in dash panel insert |
| J533 | Data bus diagnostic interface |
| K2 | Alternator warning lamp |
| K105 | Reserve fuel warning lamp |
| T16 | 16-pin connector, diagnostic connector |
| T32 | 32-pin connector, blue, on dash panel insert |
| T32a | 32-pin connector, green, on dash panel insert |
| A27 | Connection (speed signal), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
VW NEW BEETLE 2003 Overview of relay carrier
Overview of relay carrier | | | | 1 - | Relay on the 13 position additional relay carrier above the relay plate |
| 2 - | Relay carrier in protective housing |
| q | in left engine compartment |
| q | not for engine code BEW |
| q | Relay positions, from model year 2002 up to model year 2005 → chapter |
| q | Position of relays, from model year 2006 → chapter |
| 3 - | Additional relay carrier |
| q | in centre plenum chamber |
| q | for engine code BEW only |
| New Beetle | Fitting Locations | No. 802 / 2 |
|
| Relay positions - relay on relay plate |
| 1 - | Dual tone horn relay -J4- (53) |
| 2 - | X-contact relief relay -J59- (100), (213) |
| 4 - | Fuel pump relay -J17- (409) |
| 4 - | Glow plug relay -J52- (103) |
| q | engine codes ALH, ATD, AXR, BSW only |
| 5 - | Automatic intermittent wash and wipe relay -J31- (377), (192), (389) |
Note
| The number in brackets behind the part designation denotes the control number on the housing. |
| New Beetle | Fitting Locations | No. 802 / 3 |
|
VW NEW BEETLE 2003 Relay positions on the 13 position additional relay carrier above the relay plate
Relay positions on the 13 position additional relay carrier above the relay plate |
| 3 - | Starter inhibitor relay, clutch pedal switch -J434- (53) |
| 4 - | Fog light relay -J5- (53) |
| 7 - | Daytime running lights change-over relay -J89- (173) |
| q | daytime running lights only |
Note
| The number in brackets behind the part designation denotes the control number on the housing. |
| New Beetle | Fitting Locations | No. 802 / 4 |
|
| 8 - | Heated exterior mirror relay -J99- (53) |
| q | only models with mechanical window regulator |
| 9 - | Alarm horn relay -J641- |
| 10 - | Turn signals relay for anti-theft alarm -J237- |
| 10 - | Radiator fan 3rd speed relay -J135- (100) |
| 10 - | Secondary air pump relay -J299- (100) |
| q | only petrol engines, from July 2005 |
| 10 - | Low heat output relay -J359- (100) |
| q | engine code BEW only, from June 2003 up to December 2006 |
Note
| The number in brackets behind the part designation denotes the control number on the housing. |
| New Beetle | Fitting Locations | No. 802 / 5 |
|
| 11 - | Starter inhibitor and reversing light relay -J226- (126) |
| q | only for automatic gearbox 01M |
| 11 - | Starter inhibitor relay -J207- (176) |
| q | only for 6-speed automatic gearbox 09G, with Tiptronic |
| 12 - | Terminal 30 voltage supply relay -J317- (109) |
| q | for engine codes BPR, BPS only |
| q | models with diesel engines only |
| 13 - | High heat output relay -J360- (53) |
| q | engine code BEW only, from June 2003 up to December 2006 |
Note
| The number in brackets behind the part designation denotes the control number on the housing. |
| New Beetle | Fitting Locations | No. 802 / 6 |
|
VW NEW BEETLE 2003 Relay positions of relay carrier, in protective housing on left in engine compartment (from model year 2002 up to model year 2005)
Relay positions of relay carrier, in protective housing on left in engine compartment (from model year 2002 up to model year 2005) |
| 1 - | Secondary air pump relay -J299- (100) |
| 1 - | High heat output relay -J360- (100) |
| 2 - | Motronic current supply relay -J271- (458) |
| 2 - | Low heat output relay -J359- (53) |
Note
| The number in brackets behind the part designation denotes the control number on the housing. |
| New Beetle | Fitting Locations | No. 802 / 7 |
|
VW NEW BEETLE 2003 Additional relay carrier, in centre plenum chamber (from June 2003 up to December 2006)Additional relay carrier, in centre plenum chamber (from June 2003 up to December 2006) |
| | |
| Pfeil - | Automatic glow period control unit -J179-, in centre plenum chamber | | | |
| New Beetle | Fitting Locations | No. 802 / 8 |
|
VW NEW BEETLE 2003 Overview of relay carrier, from July 2009
Overview of relay carrier, from July 2009 |
| q | Relay positions ⇒ page 802/9 |
| 1 - | Relay on the 13 position additional relay carrier above the relay plate |
| q | Relay positions ⇒ page 802/10 |
| New Beetle | Fitting Locations | No. 802 / 9 |
|
| Relay positions - relay on relay plate, from July 2009 |
| 1 - | Dual tone horn relay -J4- (53) |
| 2 - | X-contact relief relay -J59- (100) |
| 4 - | Fuel pump relay -J17- (409) |
| 4 - | Glow plug relay -J52- (103) |
| 5 - | Automatic intermittent wash and wipe relay -J31- (377), (192) |
Note
| The number in brackets behind the part designation denotes the control number on the housing. |
| New Beetle | Fitting Locations | No. 802 / 10 |
|
VW NEW BEETLE 2003 Relay positions on the 13 position additional relay carrier above the relay plate
Relay positions on the 13 position additional relay carrier above the relay plate |
| 1 - | Starter inhibitor relay, clutch pedal switch -J434- (434) |
| 2 - | Rear lid remote release relay -J398- (438) |
| 3 - | Folding exterior mirror control unit -J351- (361) |
| 4 - | Starter inhibitor relay, clutch pedal switch -J434- (465) |
| 5 - | Fuel pump relay -J17- (449) |
| 6 - | Radiator fan 3rd speed relay -J135- (100) |
| 7 - | Daytime running lights change-over relay -J89- (173) |
| q | daytime running lights only |
Note
| The number in brackets behind the part designation denotes the control number on the housing. |
| New Beetle | Fitting Locations | No. 802 / 11 |
|
| 8 - | Fuel tank flap release relay -J677- (53) |
| 9 - | Window regulator relay -J51- (53) |
| 10 - | High heat output relay -J360- (100) |
Note
| The number in brackets behind the part designation denotes the control number on the housing. |
| New Beetle | Fitting Locations | No. 802 / 12 |
|
| 10 - | Starter inhibitor and reversing light relay -J226- (126) |
| q | only for automatic gearbox 01M |
| 11 - | Terminal 30 voltage supply relay -J317- (109) |
| q | for engine codes BPR, BPS only |
| q | models with diesel engines only |
| 12 - | Low heat output relay -J359- (429) |
Note
| The number in brackets behind the part designation denotes the control number on the housing. |
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