8/18/2019 Vag Blg May 2006-

1/18

Golf Current Flow Diagram No. 156 / 1Edition 03.2008

1.4 l/125 kW - Motronic, engine code BLG From May 20061.4 l/103 kW - Motronic, engine code BMY From May 2006

Notes:

For information concerning

Relay and fuse assignment

Multi-pin connectors

Control units and relays

Earth connections

→ Overview of Fitting Locations!

For information concerning Fault Finding Programs

→ Guided Fault Finding

Page 1 of 18WI-XML

8/18/2019 Vag Blg May 2006-

2/18

Golf Current Flow Diagram No. 156 / 2

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = grey

li = purplevi = purplege = yellowor = orangers = pink

Battery, alternator, starter

A - BatteryB - StarterC - AlternatorC1 - Voltage regulatorJ519 - Onboard supply control unitSA1 - Fuse 1 on fuse holder ASA5 - Fuse 5 on fuse holder ASC27 - Fuse 27 on fuse holder C

T2 - 2-pin connectorT2c -

2-pin connector, near starter (models with no airconditioning system)

T4t -

4-pin connector, near starter (models with air conditioningsystem)

1 - Earth strap, battery - body

14 - Earth point, on gearbox

508 - Screw connection (30) on E-box

652 - Earth point, engine and gearbox earth

B169 - Positive connection 1 (30), in interior wiring harness

B177 - Connection (61), in interior wiring harness

* - Models with 90 A/120 A alternator** - Models with 140 A alternator

Page 2 of 18WI-XML

8/18/2019 Vag Blg May 2006-

3/18

Golf Current Flow Diagram No. 156 / 3

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = grey

li = purplevi = purplege = yellowor = orangers = pink

Terminal 50 voltage supply relay, terminal 15 voltage supply

relay 2J519 - Onboard supply control unitJ681 - Terminal 15 voltage supply relay 2J682 - Terminal 50 voltage supply relaySB6 - Fuse 6 on fuse holder BSB28 - Fuse 28 on fuse holder BSC2 - Fuse 2 on fuse holder CSC4 - Fuse 4 on fuse holder CT40 - 40-pin connector

A41 - Positive connection (50), in dash panel wiring harness

A217 - Positive connection 8 (15a) in dash panel wiring harness

B163 - Positive connection 1 (15), in interior wiring harness

B278 - Connection 2 (15a), in main wiring harness

-●● - - Only models with flexible service interval display

Page 3 of 18WI-XML

8/18/2019 Vag Blg May 2006-

4/18

Golf Current Flow Diagram No. 156 / 4

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Fuel pump control unit, fuel gauge sender, fuel pump

G - Fuel gauge senderG6 - Fuel pumpJ519 - Onboard supply control unitJ538 - Fuel pump control unit, near fuel gauge senderSB15 - Fuse 15 on fuse holder BSB24 - Fuse 24 on fuse holder BT5b - 5-pin connectorT10n - 10-pin connector

T40 - 40-pin connector 383 - Earth connection 18, in main wiring harness

682 - Earth point 2, in rear right side panel

Page 4 of 18WI-XML

8/18/2019 Vag Blg May 2006-

5/18

Golf Current Flow Diagram No. 156 / 5

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Motronic current supply relay

J271 - Motronic current supply relay, on E-box, on left in enginecompartment (100)J519 - Onboard supply control unitSB10 - Fuse 10 on fuse holder BSB13 - Fuse 13 on fuse holder BSB14 - Fuse 14 on fuse holder BSB21 - Fuse 21 on fuse holder BSB22 - Fuse 22 on fuse holder BSB23 - Fuse 23 on fuse holder BT14a - 14-pin connector, near batteryT40 - 40-pin connector

D78 -

Positive connection 1 (30a), in engine compartment wiringharness

D181 -

Connection 2 (87a), in engine compartment wiringharness

D197 -

Connection 5 (87a), in engine compartment wiring

harness* - Only models with manual gearbox

Page 5 of 18WI-XML

8/18/2019 Vag Blg May 2006-

6/18

Golf Current Flow Diagram No. 156 / 6

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Engine control unit, magnetic clutch for supercharger

J519 - Onboard supply control unitJ527 - Steering column electronics control unitJ623 - Engine control unit, centre in plenum chamberN421 - Magnetic clutch for superchargerT14a - 14-pin connector, near batteryT20d - 20-pin connectorT94 - 94-pin connector

131 - Earth connection 2, in engine compartment wiring harness

607 - Earth point, on left in plenum chamber D78 -

Positive connection 1 (30a), in engine compartment wiringharness

D182 -

Connection 3 (87a), in engine compartment wiringharness

D110 - Connection 8, in engine compartment wiring harness

Page 6 of 18WI-XML

8/18/2019 Vag Blg May 2006-

7/18

Golf Current Flow Diagram No. 156 / 7

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Engine control unit, ignition coils with output stage, spark plugsJ519 - Onboard supply control unitJ623 - Engine control unit, centre in plenum chamberN70 - Ignition coil 1 with output stageN127 - Ignition coil 2 with output stageN291 - Ignition coil 3 with output stageN292 - Ignition coil 4 with output stageP - Spark plug connectorQ - Spark plugT14a - 14-pin connector, near batteryT60 - 60-pin connector

15 - Earth point, on cylinder head

85 - Earth connection 1, in engine compartment wiring harness

281 - Earth point 1, engine prewiring harness

379 - Earth connection 14, in main wiring harness

642 - Earth point for electronically controlled fan

D206 - Connection 4 (87a) in engine prewiring harness

Page 7 of 18WI-XML

8/18/2019 Vag Blg May 2006-

8/18

Golf Current Flow Diagram No. 156 / 8

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Engine control unit, throttle valve module, intake airtemperature sender 3, intake manifold pressure sender 3, HallsenderG40 - H all senderG186 - Throttle valve drive, electric throttleG187 - Throttle valve drives angle sender 1, electric throttleG188 - Angle sender 2 for throttle valve drives, electric throttleG520 - Intake air temperature sender 3G583 - Intake manifold pressure sender 3J338 - Throttle valve module

J519 - Onboard supply control unitJ623 - Engine control unit, centre in plenum chamberT3b - 3-pin connectorT6x - 6-pin connectorT60 - 60-pin connector

220 - Earth connection (sender earth), in engine wiring harness

D101 - Connection 1, in engine compartment wiring harness

Page 8 of 18WI-XML

8/18/2019 Vag Blg May 2006-

9/18

Golf Current Flow Diagram No. 156 / 9

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Engine control unit, fuel pressure sender, regulating flap controlunit, regulating flap position control motor, regulating flappotentiometer, intake air temperature sender, intake manifoldpressure senderG42 - Intake air temperature senderG71 - Intake manifold pressure senderG247 - Fuel pressure senderG584 - Regulating flap potentiometerJ519 - Onboard supply control unitJ623 - Engine control unit, centre in plenum chamber

J808 - Regulating flap control unitT5z - 5-pin connectorT60 - 60-pin connectorV380 - Regulating flap position control motor

D101 - Connection 1, in engine compartment wiring harness

Page 9 of 18WI-XML

8/18/2019 Vag Blg May 2006-

10/18

Golf Current Flow Diagram No. 156 / 10

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Engine control unit, intake manifold flap potentiometer, chargeair pressure sender, intake air temperature sender 2, enginespeed sender, coolant temperature senderG28 - Engine speed senderG31 - Charge air pressure senderG62 - Coolant temperature senderG299 - Intake air temperature sender 2G336 - Intake manifold flap potentiometerJ519 - Onboard supply control unitJ623 - Engine control unit, centre in plenum chamberT60 - 60-pin connector 220 - Earth connection (sender earth), in engine wiring harness

D107 - Connection 5, in engine compartment wiring harness

Page 10 of 18WI-XML

8/18/2019 Vag Blg May 2006-

11/18

Golf Current Flow Diagram No. 156 / 11

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Engine control unit, knock sensor, injectorsG61 - Knock sensor 1J519 - Onboard supply control unitJ623 - Engine control unit, centre in plenum chamberN30 - Injector, cylinder 1N31 - Injector, cylinder 2N32 - Injector, cylinder 3N33 - Injector, cylinder 4T60 - 60-pin connector

D108- Connection 6, in engine compartment wiring harness

Page 11 of 18WI-XML

8/18/2019 Vag Blg May 2006-

12/18

Golf Current Flow Diagram No. 156 / 12

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Engine control unit, additional coolant pump relay, coolantcirculation pump, charge pressure control solenoid valve,turbocharger air recirculation valveJ496 - Additional coolant pump relay (449)J519 - Onboard supply control unitJ623 - Engine control unit, centre in plenum chamberN75 - Charge pressure control solenoid valveN249 - Turbocharger air recirculation valveT4x - 4-pin connector, on lower left of radiator fanT14a - 14-pin connector, near batteryT60 - 60-pin connectorT94 - 94-pin connectorV50 - Coolant circulation pump

D111 - Connection 9, in engine compartment wiring harness

D180 - Connection (87a), in engine compartment wiring harness

D181 -

Connection 2 (87a), in engine compartment wiringharness

D196 - Connection 2 (87a) in engine prewiring harness*** - Radiator fan connection

Page 12 of 18WI-XML

8/18/2019 Vag Blg May 2006-

13/18

Golf Current Flow Diagram No. 156 / 13

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Intake manifold flap valve, variable valve timing, activatedcharcoal filter and fuel pressure, radiator outlet coolanttemperature sender, brake servo pressure sensorG83 - Radiator outlet coolant temperature senderG294 - Brake servo pressure sensorJ519 - Onboard supply control unitJ623 - Engine control unit, centre in plenum chamberN80 - Activated charcoal filter solenoid valve 1N205 - Camshaft control valve 1N276 - Fuel pressure regulating valveN316 - Intake manifold flap valveT4aj - 4-pin connectorT14a - 14-pin connector, near batteryT60 - 60-pin connectorT94 - 94-pin connector

D183 -

Connection 4 (87a), in engine compartment wiringharness

D196 - Connection 2 (87a) in engine prewiring harness

Page 13 of 18WI-XML

P 14 f 18WI XML

8/18/2019 Vag Blg May 2006-

14/18

Golf Current Flow Diagram No. 156 / 14

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Engine control unit, Lambda probe after catalytic converter,accelerator position sender, winter driving program buttonE598 - Winter driving program buttonG79 - Accelerator position senderG130 - Lambda probe after catalytic converterG185 - Accelerator position sender 2J519 - Onboard supply control unitJ623 - Engine control unit, centre in plenum chamberK243 - Winter driving program warning lightL156 - Switch illumination bulbT6as - 6-pin connectorT6h - 6-pin connectorT4v - 4-pin connector, front of engine compartmentT94 - 94-pin connectorZ29 - Lambda probe 1 heater after catalytic converter

47 - Earth point, in front right footwell

374 - Earth connection 9, in main wiring harness

388 - Earth connection 23, in main wiring harness B340 - Connection 1 (58d), in main wiring harness

E30 - Connection (87a), in engine wiring harness

-● -● - - Only models with winter driving program

Page 14 of 18WI-XML

Page 15 of 18WI XML

8/18/2019 Vag Blg May 2006-

15/18

Golf Current Flow Diagram No. 156 / 15

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Engine control unit, Lambda probe, brake light switchF - Brake light switchG39 - Lambda probeJ519 - Onboard supply control unitJ623 - Engine control unit, centre in plenum chamberT4bc - 4-pin connectorT4bg - 4-pin connector, front of engine compartmentT94 - 94-pin connectorZ19 - Lambda probe heater

389- Earth connection 24, in main wiring harness

B131 - Connection (54), in interior wiring harness

E30 - Connection (87a), in engine wiring harness

D121 - Connection 19, in engine compartment wiring harness

Page 15 of 18WI-XML

Page 16 of 18WI XML

8/18/2019 Vag Blg May 2006-

16/18

Golf Current Flow Diagram No. 156 / 16

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Engine control unit, clutch position senderG476 - Clutch position senderJ104 - ABS control unitJ519 - Onboard supply control unitJ623 - Engine control unit, centre in plenum chamberJ743 - Mechatronic unit for dual clutch gearboxT5m - 5-pin connectorT20e - 20-pin connectorT26a - 26-pin connector, on ABS with TCS control unitT47 - 47-pin connector, on ABS with EDL/ESP control unitT47a - 47-pin connector, on ABS with ESP (HBS) control unitT47b -

47-pin connector, on ABS with ESP control unit (hill startassist)

T94 - 94-pin connector

44 - Earth point, lower part of left A-pillar

367 - Earth connection 2, in main wiring harness

382 - Earth connection 17, in main wiring harness

389 - Earth connection 24, in main wiring harness

605 - Earth point, on top of steering column

B383 -

Connection 1 (powertrain CAN bus, high), in main wiringharness

B390 -

Connection 1 (powertrain CAN bus, low), in main wiringharness

* - Only models with manual gearbox-●● - - Only models with dual clutch gearbox 02E (DSG)

Page 16 of 18WI-XML

Page 17 of 18WI-XML

8/18/2019 Vag Blg May 2006-

17/18

Golf Current Flow Diagram No. 156 / 17

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Dash panel insert, data bus diagnostic interface, self-diagnosisconnection, electronic power control fault lamp, multifunctiondisplayJ119 - Multifunction displayJ285 - Control unit in dash panel insertJ519 - Onboard supply control unitJ533 -

Data bus diagnosis interface, in left footwell, near centreconsole

K132 - Electronic power control fault lampT16 -

16-pin connector, on left under dash panel, self-diagnosis

connectionT20 - 20-pin connectorT36 - 36-pin connector

376 - Earth connection 11, in main wiring harness

381 - Earth connection 16, in main wiring harness

655 - Earth point, on left headlight

A76 -

Connection (K-diagnosis wire), in dash panel wiringharness

B383 -

Connection 1 (powertrain CAN bus, high), in main wiringharness

B390 -

Connection 1 (powertrain CAN bus, low), in main wiringharness

B397 -

Connection 1 (convenience CAN bus, high), in main wiringharness

B406 -

Connection 1 (convenience CAN bus, low), in main wiringharness

-●● - - Only models with flexible service interval display

Page 17 of 18WI XML

Page 18 of 18WI-XML

8/18/2019 Vag Blg May 2006-

18/18

Golf Current Flow Diagram No. 156 / 18

ws = whitesw = blackro = redrt = redbr = browngn = greenbl = bluegr = greyli = purplevi = purplege = yellowor = orangers = pink

Dash panel insert, oil level and oil temperature sender, exhaustemissions warning lamp, charge air pressure gauge, fuel gauge,oil pressure switch, oil pressure warning lamp, warning buzzerF1 - Oil pressure switchG1 - Fuel gaugeG3 - Coolant temperature gauge**G30 - Charge air pressure gauge**G32 - Coolant shortage indicator senderG266 - Oil level and oil temperature senderH3 - Warning buzzer

J285 - Control unit in dash panel insertJ519 - Onboard supply control unitK3 - Oil pressure warning lampK31 - Cruise control system warning lampK38 -

Oil level warning lamp (only models with flexible serviceinterval display)

K83 - Exhaust emissions warning lampK105 - Reserve fuel warning lampT6z - 6-pin connector, near left headlightT14a - 14-pin connector, near batteryT36 - 36-pin connector

410 - Earth connection 1 (sender earth), in main wiring harness

D203 -

Connection (oil pressure switch) in engine compartmentwiring harness

* - Only engine code BLG** - Only engine code BMY-●● - - Only models with flexible service interval display

Page 18 of 18WI XML