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VW PASSAT 2003 – 2.0 l/96 kW – Motronic, engine code ALT . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW PASSAT 2003 - Battery - starter - alternator - voltage regulator



Wiring Diagram  VW PASSAT 2003 - Battery - starter - alternator - voltage regulator https://portal-diagnostov.com/license.html
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ABattery
BStarter
CAlternator
C1Voltage regulator
DIgnition/starter switch
J207Starter inhibitor relay
T2-2-pin connector, on right on engine block
T2a-2-pin connector, blue, on right in engine compartment
T10b-10-pin connector, black, on protective housing for control units on left in engine compartment
T10d-10-pin connector, brown, on protective housing for control units on left in engine compartment
   1 Earth strap, battery body
   500 Screw connection 1 (30), on relay plate
   502 Screw connection 1 (30a), on relay plate
   A17 Connection (61), in dash panel wiring harness
   A52 Positive connection 2 (30), in dash panel wiring harness
---Only models with automatic gearbox

Wiring Diagram VW PASSAT 2003 - Motronic control unit - current supply relay - brake servo relay - vacuum pump for brakes



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - current supply relay - brake servo relay - vacuum pump for brakes https://portal-diagnostov.com/license.html
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J220Motronic control unit
J271Motronic current supply relay
J569Brake servo relay
S131Fuse 1
S229Fuse in fuse holder
S282Engine electronics fuse
T3a3-pin connector, white
T3s3-pin connector, red, on protective housing for control units on left in engine compartment
T10b10-pin connector, black, on protective housing for control units on left in engine compartment
T10e10-pin connector, orange, on protective housing for control units on left in engine compartment
T15s15-pin connector, red, on protective housing for control units on left in engine compartment
T121121-pin connector
V192Vacuum pump for brakes
   85 Earth connection 1, in engine compartment wiring harness
   501 Screw connection 2 (30), on relay plate
   A52 Positive connection 2 (30), in dash panel wiring harness
   D10 Positive connection (30), in front right wiring harness
   D52 Positive connection (15a), in engine compartment wiring harness
---Only models with automatic gearbox

Wiring Diagram VW PASSAT 2003 - Motronic control unit - ignition system - ignition coils - spark plugs



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - ignition system - ignition coils - spark plugs https://portal-diagnostov.com/license.html
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J220Motronic control unit
N70Ignition coil 1 with output stage
N127Ignition coil 2 with output stage
N291Ignition coil 3 with output stage
N292Ignition coil 4 with output stage
PSpark plug connector
QSpark plug
T4a4-pin connector
T4b4-pin connector
T4c4-pin connector
T4d4-pin connector
T121121-pin connector
   15 Earth point, on cylinder head
   85 Earth connection 1, in engine compartment wiring harness
   D52 Positive connection (15a), in engine compartment wiring harness

Wiring Diagram VW PASSAT 2003 - Motronic control unit - air conditioning system pressure sensor - oil level and oil temperature sender



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - air conditioning system pressure sensor - oil level and oil temperature sender https://portal-diagnostov.com/license.html
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G16Air conditioning system pressure sensor
G266Oil level and oil temperature sender
J220Motronic control unit
S5Fuse in relay plate fuse holder
S7Fuse in relay plate fuse holder
T10d10-pin connector, brown, on protective housing for control units on left in engine compartment
T10e10-pin connector, orange, on protective housing for control units on left in engine compartment
T121121-pin connector
   12 Earth point, on left in engine compartment
   85 Earth connection 1, in engine compartment wiring harness
   A74 Connection (15a, fuse 5), in dash panel wiring harness
   A104 Positive connection 2 (15), in dash panel wiring harness
   D25 Positive connection (15), in engine prewiring harness

Wiring Diagram VW PASSAT 2003 - Motronic control unit - switch and button for cruise control system - brake light switch - clutch pedal switch - brake pedal switch for CCS



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - switch and button for cruise control system - brake light switch - clutch pedal switch - brake pedal switch for CCS https://portal-diagnostov.com/license.html
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E45Cruise control system switch, position 0 = OFF in detent, position 1 = OFF with button, position 2 = ON, position 3 = RES
E227Cruise control system (CCS) SET button
FBrake light switch
F36Clutch pedal switch
F47Cruise control system brake pedal switch
J220Motronic control unit
S13Fuse in relay plate fuse holder
T1010-pin connector, black, next to steering column
T15a15-pin connector, white, on protective housing for control units on left in engine compartment
T121121-pin connector
   A89 Connection wire (brake light switch), in dash panel wiring harness
   A104 Positive connection 2 (15), in dash panel wiring harness
   A130 Connection (cruise control system), in dash panel wiring harness
   A154 Connection (brake pedal), in dash panel wiring harness
*Only models with manual gearbox
---Only models with cruise control system (CCS)

Wiring Diagram VW PASSAT 2003 - Motronic control unit - injectors



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - injectors https://portal-diagnostov.com/license.html
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E15Heated rear window switch
J220Motronic control unit
J255Climatronic control unit
J314Air conditioning system cut-off control unit
N30Injector, cylinder 1
N31Injector, cylinder 2
N32Injector, cylinder 3
N33Injector, cylinder 4
S32Aerial motor single fuse
T10e10-pin connector, orange, on protective housing for control units on left in engine compartment
T15s15-pin connector, red, on protective housing for control units on left in engine compartment
T121121-pin connector
   504 Screw connection 1 (87), on relay plate
   A20 Positive connection (15a), in dash panel wiring harness
   A64 Connection (30, speed boost), in dash panel wiring harness
   D95 Connection (injectors), in engine compartment wiring harness
*Only models with air conditioning system

Wiring Diagram VW PASSAT 2003 - Motronic control unit - engine speed sender - knock sensors



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - engine speed sender - knock sensors https://portal-diagnostov.com/license.html
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G28Engine speed sender
G61Knock sensor 1
G66Knock sensor 2
J220Motronic control unit
T3b3-pin connector, grey, on bulkhead
T3c3-pin connector, blue, on bulkhead
T3d3-pin connector, green, on bulkhead
T121121-pin connector
   104 Earth connection in front right wiring harness - sensor earth -
   220 Earth connection (sender earth), in engine wiring harness

Wiring Diagram VW PASSAT 2003 - Motronic control unit - intake air temperature sender - Hall sender - coolant temperature sender - coolant temperature display sender



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - intake air temperature sender - Hall sender - coolant temperature sender - coolant temperature display sender https://portal-diagnostov.com/license.html
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G2Coolant temperature display sender
G40Hall sender
G42Intake air temperature sender
G62Coolant temperature sender
G83Radiator outlet coolant temperature sender
G294Brake servo pressure sensor
J220Motronic control unit
J279Radiator fan V7 and V35 relay - 1st speed
J280Radiator fan V7 relay - 2nd speed
T10b10-pin connector, black, on protective housing for control units on left in engine compartment
T10d10-pin connector, brown, on protective housing for control units on left in engine compartment
T15a15-pin connector, white, on protective housing for control units on left in engine compartment
T121121-pin connector
   220 Earth connection (sender earth), in engine wiring harness
   D141 Connection (5V), in engine wiring harness
*Only models with automatic gearbox

Wiring Diagram VW PASSAT 2003 - Motronic control unit - accelerator position sender - fuel pump relay



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - accelerator position sender - fuel pump relay https://portal-diagnostov.com/license.html
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DIgnition/starter switch
G79Accelerator position sender
J17Fuel pump relay (372)
J220Motronic control unit
T55-pin connector, black
T6b6-pin connector, black
T10b10-pin connector, black, on protective housing for control units on left in engine compartment
T15a15-pin connector, white, on protective housing for control units on left in engine compartment
T121121-pin connector
   A2 Positive connection (15), in dash panel wiring harness
*Only models with automatic gearbox

Wiring Diagram VW PASSAT 2003 - Motronic control unit - cooling system thermostat - air mass meter - valves



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - cooling system thermostat - air mass meter - valves https://portal-diagnostov.com/license.html
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F265Map-controlled engine cooling system thermostat
G70Air mass meter
J220Motronic control unit
N80Activated charcoal filter system solenoid valve 1 (pulsed)
N156Variable intake manifold changeover valve
N205Inlet camshaft control valve 1
S234Fuse in fuse holder
T10e10-pin connector, orange, in protective housing for control units on left in engine compartment
T121121-pin connector
   D107 Connection 5, in engine compartment wiring harness
   D172 Connection (engine electronics), in wiring harness
   E30 Connection (87a), in engine wiring harness

Wiring Diagram VW PASSAT 2003 - Motronic control unit - Lambda probe - Lambda probe after catalytic converter



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - Lambda probe - Lambda probe after catalytic converter https://portal-diagnostov.com/license.html
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G39Lambda probe
G130Lambda probe after catalytic converter
J220Motronic control unit
T44-pin connector
T66-pin connector, black
T121121-pin connector
   241 Earth connection 2 engine earth, in engine wiring harness
   E30 Connection (87a), in engine wiring harness

Wiring Diagram VW PASSAT 2003 - Motronic control unit - throttle valve module



Wiring Diagram  VW PASSAT 2003 - Motronic control unit - throttle valve module https://portal-diagnostov.com/license.html
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G186Throttle valve drive (electric power control)
G187Throttle valve drive angle sender 1 (electric power control)
G188Throttle valve drive angle sender 1 (electric power control)
J217Automatic gearbox control unit
J220Motronic control unit
J338Throttle valve module
T6a6-pin connector
T10d10-pin connector, brown, on protective housing for control units on left in engine compartment
T15s15-pin connector, red, on protective housing for control units on left in engine compartment
T8888-pin connector
T121121-pin connector
   A60 Connection (speed signal), in dash panel wiring harness
   A121 Connection (high bus), in dash panel wiring harness
   A122 Connection (low bus), in dash panel wiring harness
---Only models with automatic gearbox

Wiring Diagram VW PASSAT 2003 - Fuel system pressurisation pump - fuel gauge sender - speedometer sender - coolant shortage indicator sender - oil pressure switch



Wiring Diagram  VW PASSAT 2003 - Fuel system pressurisation pump - fuel gauge sender - speedometer sender - coolant shortage indicator sender - oil pressure switch https://portal-diagnostov.com/license.html
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F1Oil pressure switch
F120Anti-theft alarm and vermin repellent system contact switch
GFuel gauge sender
G6Fuel system pressurisation pump
G22Speedometer sender (inductive sender on gearbox)
G32Coolant shortage indicator sender
J285Control unit in dash panel insert
J393Convenience system central control unit
KDash panel insert
K132Electronic power control fault lamp
S228Fuse in fuse holder
T3d3-pin connector, front left in engine compartment
T6c6-pin connector, blue, left A-pillar coupling station
T10a10-pin connector, brown, left A-pillar coupling station
T10b10-pin connector, black, on left in engine compartment
   44 Earth point, lower part of left A-pillar
   75 Earth point, rear right pillar
   86 Earth connection 1, in rear wiring harness
   197 Earth connection 4, in rear wiring harness
   269 Earth connection (sender earth) 1, in dash panel wiring harness
   316 Earth connection (sender earth 2) in engine wiring harness
   W37 Connection (ATA), in floor wiring harness

Wiring Diagram VW PASSAT 2003 - Dash panel insert - optical and acoustic oil pressure warning - odometer display - coolant shortage and coolant temperature indicator - fuel gauge - data bus diagnostic interface



Wiring Diagram  VW PASSAT 2003 - Dash panel insert - optical and acoustic oil pressure warning - odometer display - coolant shortage and coolant temperature indicator - fuel gauge - data bus diagnostic interface https://portal-diagnostov.com/license.html
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G1Fuel gauge
G3Coolant temperature gauge
H11Oil pressure warning buzzer
J285Display control unit in dash panel insert
J533Data bus diagnostic interface
K2Alternator warning lamp
K3Oil pressure warning lamp
K28Coolant temperature/coolant shortage warning lamp
K31Cruise control system warning lamp
K38Oil level warning lamp
L75Digital display illumination bulb
T32a32-pin connector, blue, on dash panel insert
T32b32-pin connector, green, on dash panel insert
Y4Odometer display
   A60 Connection (speed signal), in dash panel wiring harness
   A121 Connection (high bus), in dash panel wiring harness
   A122 Connection (low bus), in dash panel wiring harness