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AUDI A2 2004 – 1.6 litre FSI engine (81 kW – Motronic – 4-cylinder), engine code BAD . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A2 2004 - Battery - starter - alternator - ignition/starter switch - fuses on fuse box



Wiring Diagram  AUDI A2 2004 - Battery - starter - alternator - ignition/starter switch - fuses on fuse box https://portal-diagnostov.com/license.html
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ABattery
BStarter
CAlternator
DIgnition/starter switch
S88Strip fuse
SB20Fuse -20- on fuse box
SB30Fuse -30- on fuse box
SB31Fuse -31- on fuse box
SB38Fuse -38- on fuse box
T6f6-pin connector, green, in footwell, front left
T17e17-pin connector, blue, in footwell, front left
   65 Earth point, left longitudinal member, rear, between B and C pillar
   500 Screw connection -1- (30), on relay plate
   A2 Positive (+) connection (15), in dash panel wiring harness
   A32 Positive (+) connection (30), in dash panel wiring harness
   A98 Positive (+) connection -4- (30), in dash panel wiring harness
   B177 Connection (61), in interior wiring harness
   P2 Positive (+) connection (30), in battery wiring harness

Wiring Diagram AUDI A2 2004 - Fuel pump relay - Motronic control unit - Motronic current supply relay - air mass meter fuse - engine control unit fuse



Wiring Diagram  AUDI A2 2004 - Fuel pump relay - Motronic control unit - Motronic current supply relay - air mass meter fuse - engine control unit fuse https://portal-diagnostov.com/license.html
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J17Fuel pump relay
J220Motronic control unit
J271Motronic current supply relay
S74Air mass meter fuse
S102Engine control unit fuse
SB18Fuse -18- on fuse box
SB19Fuse -19- on fuse box
SB45Fuse -45- on fuse box
T6f6-pin connector, green, in footwell, front left
T10s10-pin connector, white, in footwell, front left
   12 Earth point, in engine compartment, left
   277 Earth connection -3-, in interior wiring harness
   284 Earth connection -6-, in interior wiring harness
   A100 Connection -2- (87), in dash panel wiring harness
   B155 Connection -2- (TK (door contact)), in interior wiring harness
   D50 Positive (+) connection (30), in engine compartment wiring harness
   D78 Positive (+) connection -1- (30a), in engine compartment wiring harness
*⇒ Applicable Current Flow Diagram: Convenience systems

Wiring Diagram AUDI A2 2004 - Brake light switch - clutch pedal switch - Motronic control unit - injectors



Wiring Diagram  AUDI A2 2004 - Brake light switch - clutch pedal switch - Motronic control unit - injectors https://portal-diagnostov.com/license.html
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FBrake light switch
F36Clutch pedal switch
J220Motronic control unit
N30Injector, cylinder 1
N31Injector, cylinder 2
N32Injector, cylinder 3
N33Injector, cylinder 4
T1717-pin connector, brown, in footwell, front left
T17e17-pin connector, blue, in footwell, front left
   B131 Connection (54), in interior wiring harness
   B149 Positive (+) connection -2- (15a), in interior wiring harness
   D95 Connection (injectors), in engine compartment wiring harness
   D137 Connection -2- (injectors), in engine compartment wiring harness
*Only applies to models with cruise control system

Wiring Diagram AUDI A2 2004 - Inlet camshaft timing adjustment valve -1- - fuel pressure regulating valve - fuel metering valve - intake manifold flap air flow control valve



Wiring Diagram  AUDI A2 2004 - Inlet camshaft timing adjustment valve -1- - fuel pressure regulating valve - fuel metering valve - intake manifold flap air flow control valve https://portal-diagnostov.com/license.html
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E87Air conditioning system/Climatronic operating and display unit
F265Map-controlled engine cooling thermostat
J220Motronic control unit
J293Radiator fan control unit
N79Heater element (crankcase breather)
N205Inlet camshaft timing adjustment valve -1-
N276Fuel pressure regulating valve
N280Air conditioning system compressor regulating valve
N290Fuel metering valve
N316Intake manifold flap air flow control valve
T6g6-pin connector, black, on radiator fan control unit
T10e10-pin connector, brown, connector point, A pillar, left
T10s10-pin connector, white, in footwell, front left
T17e17-pin connector, blue, in footwell, front left
   D104 Positive (+) connection -2- (30a), in engine compartment wiring harness
*Only applies to models with air conditioner

Wiring Diagram AUDI A2 2004 - Air mass meter - exhaust gas temperature sender -1- - brake servo pressure sensor - Motronic control unit



Wiring Diagram  AUDI A2 2004 - Air mass meter - exhaust gas temperature sender -1- - brake servo pressure sensor - Motronic control unit https://portal-diagnostov.com/license.html
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G70Air mass meter
G235Exhaust gas temperature sender -1-
G294Brake servo pressure sensor
J220Motronic control unit
T10s10-pin connector, white, in footwell, front left
T1717-pin connector, brown, in footwell, front left
   316 Earth connection (sender earth -2-), in engine wiring harness
   D174 Connection -2- (5V), in engine wiring harness
*Only applies to models without air conditioner

Wiring Diagram AUDI A2 2004 - NOx sender - Motronic control unit - NOx sensor control unit



Wiring Diagram  AUDI A2 2004 - NOx sender - Motronic control unit - NOx sensor control unit https://portal-diagnostov.com/license.html
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G295NOx sender
J220Motronic control unit
J583NOx sensor control unit
T10u10-pin connector, black, in intermediate floor panel, under driver's seat
T1414-pin connector, black, in intermediate floor panel, under driver's seat

Wiring Diagram AUDI A2 2004 - Heater/heat output switch - lambda probe - activated charcoal filter system solenoid valve 1 (pulsed) - lambda probe heater



Wiring Diagram  AUDI A2 2004 - Heater/heat output switch - lambda probe - activated charcoal filter system solenoid valve 1 (pulsed) - lambda probe heater https://portal-diagnostov.com/license.html
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E16Heater/heat output switch
G39Lambda probe
J220Motronic control unit
N80Activated charcoal filter system solenoid valve 1 (pulsed)
T16h16-pin connector, black, on heater controls
T1717-pin connector, brown, in footwell, front left
T17e17-pin connector, blue, in footwell, front left
Z19Lambda probe heater
   A121 Connection (high bus), in dash panel wiring harness
   A122 Connection (low bus), in dash panel wiring harness
   D144 Positive (+) connection -5- (30), in engine compartment wiring harness
   D169 Connection (NOx), in engine compartment wiring harness
*Only applies to models without air conditioner

Wiring Diagram AUDI A2 2004 - Cruise control system switch - accelerator pedal position senders - Motronic control unit - throttle valve module



Wiring Diagram  AUDI A2 2004 - Cruise control system switch - accelerator pedal position senders - Motronic control unit - throttle valve module https://portal-diagnostov.com/license.html
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E45Cruise control system switch
G79Accelerator pedal position sender
G185Accelerator pedal position sender -2-
G186Throttle valve drive (electric power control)
G187Throttle valve drive angle sender -1- (electric power control)
G188Throttle valve drive angle sender -2- (electric power control)
J220Motronic control unit
J338Throttle valve module
T10n10-pin connector, black, behind steering column switch trim
T10s10-pin connector, white, in footwell, front left
T1717-pin connector, brown, in footwell, front left
   A16 Connection (cruise control system), in dash panel wiring harness
*Only applies to models with cruise control system

Wiring Diagram AUDI A2 2004 - Coolant temperature senders - engine speed sender - Hall sender - knock sensor I - intake manifold pressure sender



Wiring Diagram  AUDI A2 2004 - Coolant temperature senders - engine speed sender - Hall sender - knock sensor I - intake manifold pressure sender https://portal-diagnostov.com/license.html
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G2Coolant temperature sender
G28Engine speed sender
G40Hall sender
G61Knock sensor I
G62Coolant temperature sender
G71Intake manifold pressure sender
J220Motronic control unit
T1717-pin connector, brown, in footwell, front left
   220 Earth connection (sender earth), in engine wiring harness
   269 Earth connection (sender earth) -1-, in dash panel wiring harness
   D141 Connection (5V), in engine wiring harness

Wiring Diagram AUDI A2 2004 - Thermo-switch for coolant circulation - exhaust gas recirculation potentiometer - fuel pressure sender - intake manifold flap potentiometer



Wiring Diagram  AUDI A2 2004 - Thermo-switch for coolant circulation - exhaust gas recirculation potentiometer - fuel pressure sender - intake manifold flap potentiometer https://portal-diagnostov.com/license.html
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F51Thermo-switch for coolant circulation
G212Exhaust gas recirculation potentiometer
G247Fuel pressure sender
G336Intake manifold flap potentiometer
J220Motronic control unit
J234Airbag control unit
N18Exhaust gas recirculation valve
T10s10-pin connector, white, in footwell, front left
T1717-pin connector, brown, in footwell, front left
T17f17-pin connector, white, connector point, A pillar, left
   220 Earth connection (sender earth), in engine wiring harness
   A125 Connection (crash signal), in dash panel wiring harness
   D141 Connection (5V), in engine wiring harness

Wiring Diagram AUDI A2 2004 - Motronic control unit - ignition coils with output stage - spark plug connector - spark plugs



Wiring Diagram  AUDI A2 2004 - Motronic control unit - ignition coils with output stage - spark plug connector - 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 plugs
   12 Earth point, in engine compartment, left
   19 Earth point, near ignition coil
   221 Earth connection (engine earth), in engine wiring harness
   D51 Positive (+) connection -1- (15), in engine compartment wiring harness

Wiring Diagram AUDI A2 2004 - Oil pressure switch - fuel pump (pre-supply pump) - oil level/oil temperature sender - control unit with display in dash panel insert



Wiring Diagram  AUDI A2 2004 - Oil pressure switch - fuel pump (pre-supply pump) - oil level/oil temperature sender - control unit with display in dash panel insert https://portal-diagnostov.com/license.html
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F1Oil pressure switch
GFuel gauge sender
G1Fuel gauge
G6Fuel pump (pre-supply pump)
G9Oil temperature gauge
G266Oil level/oil temperature sender
J285Control unit with display in dash panel insert
K2Alternator warning lamp
T6f6-pin connector, green, in footwell, front left
T1717-pin connector, brown, in footwell, front left
T17e17-pin connector, blue, in footwell, front left
T3232-pin connector, blue, on dash panel insert
T32a32-pin connector, green, on dash panel insert
   12 Earth point, in engine compartment, left
   269 Earth connection (sender earth) -1-, in dash panel wiring harness
   279 Earth connection -5-, in interior wiring harness
   284 Earth connection -6-, in interior wiring harness
   B135 Connection -1- (15a), in interior wiring harness
*Only applies to models with air conditioner