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VW PASSAT 1999 – 2.8 ltr./142 kW Motronic, engine codes AQD . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW PASSAT 1999 - Alternator - voltage regulator - starter - battery



Wiring Diagram  VW PASSAT 1999 - Alternator - voltage regulator - starter - battery https://portal-diagnostov.com/license.html
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ABattery
BStarter
CAlternator
C1Voltage regulator
DIgnition/starter switch
S237Fuse in fuse holder
T22-pin connector, right on engine block
T10b6-pin connector, black, on protective housing for control units, left in engine compartment
T10d10-pin connector, brown, on protective housing for control units, left in engine compartment
   1 Earth strap, battery body
   2 Earth strap, gearbox - 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

Wiring Diagram VW PASSAT 1999 - Motronic control unit - ignition system - fuel pump relay - throttle valve control part



Wiring Diagram  VW PASSAT 1999 - Motronic control unit - ignition system - fuel pump relay - throttle valve control part https://portal-diagnostov.com/license.html
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C5Terminal 15 suppressor
G69Throttle valve potentiometer
G88Potentiometer
J17Fuel pump relay (208)
J220Motronic control unit, in protective housing, left in engine compartment
J338Throttle valve control unit
N152Ignition transformer
PSpark plug connector
QFlame plug
S229Fuse in fuse holder
T5e5-pin connector, black, on ignition transformer
T66-pin connector, black, on throttle valve control part
T10b10-pin connector, black, on protective housing for control units, left in engine compartment
T10e6-pin connector, orange, on protective housing for control units, left in engine compartment
T121121-pin connector, on Motronic control unit
V60Throttle valve positioner
   504 Screw connection -1- (87), on relay plate
   D52 Positive connection (15a ignition coils control unit), in engine compartment wiring harness

Wiring Diagram VW PASSAT 1999 - Motronic control unit - engine speed sender - knock sensors



Wiring Diagram  VW PASSAT 1999 - Motronic control unit - engine speed sender - knock sensors https://portal-diagnostov.com/license.html
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G28Engine speed sender
G61Knock sensor I
G66Knock sensor II
J104ABS with EDL control unit
J220Motronic control unit, in protective housing, left in engine compartment
T3a3-pin connector, blue, on left of bulkhead
T3b3-pin connector, grey, on left of the bulkhead
T3c3-pin connector, blue, on left of bulkhead
T10b10-pin connector, black, on protective housing for control units, left in engine compartment
T15s15-pin connector, red, on protective housing for control units, left in engine compartment
T3131-pin connector, on ABS with EDL control unit
T121121-pin connector, on Motronic control unit
   220 Earth connection (sender earth), in engine wiring harness
   501 Screw connection -2- (30), on relay plate
   D102 Connection -2-, in engine compartment wiring harness
**For vehicles with ASR only

Wiring Diagram VW PASSAT 1999 - Motronic control unit - intake air temperature sender - Hall sender - coolant temperature sender



Wiring Diagram  VW PASSAT 1999 - Motronic control unit - intake air temperature sender - Hall sender - coolant temperature sender https://portal-diagnostov.com/license.html
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G2Coolant temperature sender
G40Hall sender
G42Intake air temperature sender
G62Coolant temperature sender
G163Hall sender 2
J220Motronic control unit, in protective housing, left in engine compartment
J255Climatronic control unit
J314Air conditioner cut-off control unit
T10b10-pin connector, black, on protective housing for control units, left in engine compartment
T1212-pin connector, on Climatronic control unit
T15a15-pin connector, red, on protective housing for control units, left in engine compartment (air conditioning system)
T16b16-pin connector, on Climatronic control unit
T121121-pin connector, on Motronic control unit
   220 Earth connection (sender earth), in engine wiring harness
   A64 Connection (rpm boost), in dash panel wiring harness
   D102 Connection -2-, in engine compartment wiring harness
   D106 Connection -4-, in engine compartment wiring harness

Wiring Diagram VW PASSAT 1999 - Motronic control unit - Lambda probes



Wiring Diagram  VW PASSAT 1999 - Motronic control unit - Lambda probes https://portal-diagnostov.com/license.html
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G39Lambda probe
G108Lambda probe II
J217Automatic gearbox control unit
J220Motronic control unit, in protective housing, left in engine compartment
T44-pin connector, black
T4a4-pin connector, black
T15s15-pin connector, red, on protective housing for control units, left in engine compartment
T8888-pin connector, on automatic gearbox control unit
T121121-pin connector, on Motronic control unit
   A121 Connection (high bus), in dash panel wiring harness
   A122 Connection (low bus), in dash panel wiring harness
   D101 Connection -1-, in engine compartment wiring harness
   E30 Connection (87a), in engine wiring harness
---For vehicles with automatic gearbox only

Wiring Diagram VW PASSAT 1999 - Motronic control unit - camshaft adjustment valve - air mass meter - activated charcoal filter system solenoid valve - intake manifold change-over valve



Wiring Diagram  VW PASSAT 1999 - Motronic control unit - camshaft adjustment valve - air mass meter - activated charcoal filter system solenoid valve - intake manifold change-over valve https://portal-diagnostov.com/license.html
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G70Air mass meter
J220Motronic control unit
N80Activated charcoal filter system solenoid valve I
N156Intake manifold change-over valve
N205Camshaft adjustment valve -1-, grey
N208Camshaft adjustment valve -2-, grey
S234Fuse in fuse holder
T10e10-pin connector, orange, on protective housing for control units, left in engine compartment
T121121-pin connector, on Motronic control unit
   D107 Connection -5-, in engine compartment wiring harness
   E30 Connection (87a), in engine wiring harness

Wiring Diagram VW PASSAT 1999 - Motronic control unit - cruise control system switch (CCS) - brake light switch - clutch pedal switch



Wiring Diagram  VW PASSAT 1999 - Motronic control unit - cruise control system switch (CCS) - brake light switch - clutch pedal switch 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) button (Set)
FBrake light switch
F36Clutch pedal switch
F47Cruise cont. sys. brake pedal switch
J220Motronic control unit, in protective housing for control units
S13Fuse in relay plate fuse box
T1010-pin connector, black, next to steering column
T15a15-pin connector, white, on protective housing for control units, left in engine compartment
T121121-pin connector, on Motronic control unit
   A89 Connection (brake light switch), in dash panel wiring harness, pin 4
   A130 Connection (CCS), in dash panel wiring harness
   A154 Connection (brake pedal switch), in dash panel wiring harness
---For vehicles with cruise control system only
*For vehicles with manual gearbox only

Wiring Diagram VW PASSAT 1999 - Motronic control unit - injectors



Wiring Diagram  VW PASSAT 1999 - Motronic control unit - injectors https://portal-diagnostov.com/license.html
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DIgnition/starter switch
J220Motronic control unit, in protective housing, left in engine compartment
N30Injector, cylinder 1
N31Injector, cylinder 2
N32Injector, cylinder 3
N33Injector, cylinder 4
N83Injector, cylinder 5
N84Injector, cylinder 6
S231Fuse in fuse holder
S232Fuse in fuse holder
T10e10-pin connector, orange, on protective housing for control units, left in engine compartment
T121121-pin connector, on Motronic control unit
   A2 Positive (+) connection (15), in dash panel wiring harness
   A20 Connection (15a), in dash panel wiring harness
   D95 Connection (injectors), in engine compartment wiring harness
---For vehicles with cruise control system only

Wiring Diagram VW PASSAT 1999 - Motronic control unit - accelerator pedal position sender



Wiring Diagram  VW PASSAT 1999 - Motronic control unit - accelerator pedal position sender https://portal-diagnostov.com/license.html
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G79Accelerator position sender
J220Motronic control unit
T6a6-pin connector
T6b6-pin connector
T10b10-pin connector, black, on protective housing for control units, left in engine compartment
T10d10-pin connector, brown, on protective housing for control units, left in engine compartment
T10e10-pin connector, orange, on protective housing for control units, left in engine compartment
T15a15-pin connector, white, on protective housing for control units, left in engine compartment
T121121-pin connector, on Motronic control unit
   12 Earth pointin, in engine compartment, left
   124 Earth connection, in engine compartment right wiring harness
   A27 Connection (speed signal), in dash panel wiring harness
   A45 Connection (engine speed signal), in dash panel wiring harness
   A131 Connection (fuel consumption signal), in dash panel wiring harness
   A153 Connection (EPC), in dash panel wiring harness

Wiring Diagram VW PASSAT 1999 - Motronic control unit - secondary air pump relay - fuel pump - fuel gauge sender



Wiring Diagram  VW PASSAT 1999 - Motronic control unit - secondary air pump relay - fuel pump - fuel gauge sender https://portal-diagnostov.com/license.html
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GFuel gauge sender
G6Fuel pump (pre-supply pump)
G169Fuel gauge sender -2- (four wheel drive only)
G237Fuel gauge sender -3- (four wheel drive only)
J220Motronic control unit
J299Secondary air pump relay, in protective housing for control units, in engine compartment
N112Secondary air inlet valve
S130Secondary air pump fuse, in protective housing for control units, in engine compartment
S228Fuse in fuse holder
T4e4-pin connector, near fuel pump
T6c6-pin connector, blue, coupling station left A-pillar
T88-pin connector
T10a10-pin connector, brown, coupling station left A-pillar
T10e10-pin connector
T121121-pin connector, on Motronic control unit
V101Secondary air pump motor
   75 Earth point, rear pillar, right
   197 Earth connection -4-, in rear wiring harness
**For engine code AQD only

Wiring Diagram VW PASSAT 1999 - Sender for coolant shortage indicator - speedometer sender - oil pressure switch



Wiring Diagram  VW PASSAT 1999 - Sender for coolant shortage indicator - speedometer sender - oil pressure switch https://portal-diagnostov.com/license.html
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F1Oil pressure switch
G22Speedometer sender, reed contact sender left in gearbox
G32Coolant shortage indicator sender
T22-pin connector, right on engine block
T3d3-pin connector, front left in engine compartment
T6c6-pin connector, blue, left A-pillar coupling station
T10b10-pin connector, black, on protective housing for control units, left in engine compartment
   269 Earth connection (sender earth) -1-, in dash panel wiring harness
   316 Earth connection (sender earth -2-), in engine wiring harness

Wiring Diagram VW PASSAT 1999 - Dash panel insert - optical and acoustical oil pressure warning - odometer display - coolant shortage and coolant temperature indicator - fuel gauge



Wiring Diagram  VW PASSAT 1999 - Dash panel insert - optical and acoustical oil pressure warning - odometer display - coolant shortage and coolant temperature indicator - fuel gauge https://portal-diagnostov.com/license.html
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G1Fuel gauge
G3Coolant temperature gauge
H11Oil pressure warning buzzer
J285Control unit with display in dash panel insert
K2Alternator warning lamp
K3Oil pressure warning lamp
K28Coolant temperature/coolant shortage warning lamp
K132Electric throttle control fault lamp
L75Digital display illumination
T32a32-pin connector, blue, on dash panel insert
T32b32-pin connector, green, on dash panel insert
Y4Odometer display
   A27 Connection (speed signal), in dash panel wiring harness
   A45 Connection (engine speed signal), in dash panel wiring harness
   A131 Connection (fuel consumption signal), in dash panel wiring harness
   A153 Connection (EPC), in dash panel wiring harness