Contents Wiring diagrams Section: Electrical Component Locations All sections

Electrical Component Locator: Other Audi A3 8P facelift 2

BUZZERS, RELAYS & TIMERS

ComponentLocation
Coolant Circulation Pump Relay (R2)On fuse panel "B". (Схема №4)
Dual Washer Pump Relay 1 (B8)On relay carrier. (Схема №2)
Dual Washer Pump Relay 2 (B7)On relay carrier. (Схема №2)
Engine Component Power Supply Relay (Engine Code CBFA) (5.2)On 5-position fuse/relay carrier. (Схема №1)
Engine Component Power Supply Relay (R4)On fuse panel "B". (Схема №4)
Fuel Pump (FP) Relay (2.0L) (5.2)On 5-position fuse/relay carrier. (Схема №1)
Fuel Pump (FP) Relay (3.2L) (20)Rear of engine. (Схема №128)
Headlight Washer Relay (1)On 5-position fuse/relay carrier. (Схема №1)
Heated Seat Relay (SHZG)On relay carrier. (Схема №2)
Horn Relay (B6)On relay carrier. (Схема №2)
Load Reduction Relay (B9)On relay carrier. (Схема №2)
Motronic Engine Control Module (ECM) Power Supply Relay (2.0L) (R1)On fuse panel "B". (Схема №4)
Motronic Engine Control Module (ECM) Power Supply Relay (3.2L) (19)Rear of engine. (Схема №128)
Power Supply Relay (Terminal 50) (4)On 5-position fuse/relay carrier. (Схема №1)
Power Supply Relay 2 (Terminal 15) (B1)On relay carrier. (Схема №2)
Power Supply Relay 2 (Terminal 30, B+) (B4)On relay carrier. (Схема №2)
Rear Window Defogger Relay (B5)On relay carrier. (Схема №2)
Secondary Air Injection (AIR) Pump Relay (18)Rear of engine. (Схема №128)

BUZZERS, RELAYS & TIMERS LOCATION

CIRCUIT PROTECTION DEVICES

ComponentLocation
Fuse Panel "B"Integrated in engine compartment E-box.
Main Fuse Panel "D"Right rear of luggage compartment.
Relay CarrierIntegrated in J519 vehicle electrical system control module.
5-Position Fuse/Relay CarrierUnder left side of dash. (Схема №122)

CIRCUIT PROTECTION DEVICES LOCATION

CONTROL UNITS

ComponentLocation
ABS Control ModuleAt right rear of engine compartment. (Схема №60)
Airbag Control ModuleUnder front of center console. (Схема №62)
All-Wheel Drive Control Module (A)Left front of rear axle differential. (Схема №119)
Comfort System Central Control Module (C)Right side of luggage compartment. (Схема №68)
Coolant Fan Control (FC) Control Module (1)Front of engine compartment. (Схема №116)
Direct Shift Gearbox (DSG) MechatronicOn transmission housing. (Схема №120)
Door Control Module (Driver's)Integrated in driver's door window regulator motor. (Схема №65)
Door Control Module (Front Passenger's)Integrated in right front door window regulator motor. (Схема №66)
Door Control Module (Left/Right Rear)Integrated in respective rear door window regulator motor. (Схема №67)
Driver's Seat Heater Control ModuleUnder driver's seat. (Схема №121)
Electronic Damping Control ModuleUnder front passenger's seat. (Схема №126)
Fresh Air Blower Control Module (D)Below right side of dash. (Схема №118)
Fuel Pump (FP) Control ModuleUnder right side of rear seat. (Схема №74)
Garage Door Opener Control Module (1)Under front bumper. (Схема №117)
Headlight Range Control ModuleBehind right center of dash. (Схема №113)
High Intensity Gas Discharge Light Control Module (Left/Right)Behind respective headlight assembly. (Схема №115)
Instrument Cluster Control ModuleBehind instrument cluster. (Схема №114)
Left Antenna ModuleLeft side of luggage compartment lid. (Схема №96)
Motronic Engine Control Module (ECM)In center of plenum chamber. (Схема №61)
Multi-Function Steering Wheel Control ModuleIn steering wheel.
Navigation System W/CD Drive Control ModuleLeft side of luggage compartment.
NOX Sensor Control ModuleUnder vehicle, near NOX-catalyzer.
Parking Aid Control ModuleRight side of luggage compartment.
Power Steering Control ModuleBelow steering rack. (Схема №70)
Power Sunroof Control ModuleFront center of roof. (Схема №63)
Seat Heater Control Module (Driver/Front Passenger)Under respective front seat. (Схема №125)
Seat Occupied Recognition Control ModuleOn base of front passenger's seat. (Схема №76)
Selector Lever Sensor System Control ModuleLeft side of selector lever base. (Схема №75)
Steering Column Electronic Systems Control ModuleUnder steering column. (Схема №72)
Throttle Valve Control Module (2.0L)On throttle body. (Схема №64)
Throttle Valve Control Module (3.2L) (11)On throttle body. (Схема №128)
Tire Pressure Monitoring Control ModuleBehind glove compartment. (Схема №127)
Towing Recognition Control ModuleRight side of luggage compartment.
Vehicle Electrical System Control ModuleBelow left side of dash. (Схема №71)
Wiper Motor Control ModuleIntegral to windshield wiper motor. (Схема №69)

CONTROL UNITS LOCATION

MOTORS

ComponentLocation
After-Run Coolant PumpLeft side of engine, below oil filter. (Схема №108)
Air Flow Flap Motor (15)Left side of fresh air blower unit. (Схема №123)
Central Flap Actuator Motor (6)Left side of HVAC unit. (Схема №123)
Coolant FansFront of engine compartment, behind radiator.
Defroster Flap Motor (9)Left side of HVAC unit. (Схема №123)
Electro-Mechanical Power Steering MotorBelow steering rack. (Схема №107)
Fresh Air Blower (19)Under right side of dash. (Схема №123)
Headlight Beam Adjustment Motor (Left/Right)In respective headlight assembly.
Intake Flap MotorRear of left cylinder head. (Схема №106)
Interior Temperature Sensor FanIntegral to A/C control head.
Rear Window Wiper MotorCenter of cargo area lid. (Схема №105)
Recirculation Flap MotorBehind glove box. (Схема №104)
Seat Backrest Adjustment Motor (Driver/Front Passenger) (3)In respective seat back.
Seat Forward/Back Adjustment Motor (Driver/Front Passenger) (2)Under respective front seat. (Схема №134)
Seat Height Adjustment Motor (Driver/Front Passenger) (6)Under respective front seat.
Seat Inclination Adjustment Motor (Driver/Front Passenger) (1)Under front of respective front seat. (Схема №134)
Seat Lumbar Support Height Adjustment Motor (Driver/Front Passenger) (4)In respective seat back. (Схема №134)
Seat Lumbar Support Height Adjustment Motor (Driver/Front Passenger) (5)In respective seat back. (Схема №134)
Sunroof MotorCenter front of roof. (Схема №103)
Temperature Flap Actuator Motor (Left) (7)Left side of HVAC unit. (Схема №123)
Temperature Flap Actuator Motor (Right) (22)Lower right side of HVAC unit. (Схема №123)
Temperature Flap Potentiometer/Actuator (Left) (7)Left side of HVAC unit. (Схема №123)
Temperature Flap Potentiometer/Actuator (Right) (22)Lower right side of HVAC unit. (Схема №123)
Throttle Drive (Electronic Power Control (EPC)) (2.0L)On throttle body. (Схема №33)
Throttle Drive (Electronic Power Control (EPC)) (3.2L) (11)On throttle body. (Схема №128)
Windshield Wiper MotorIn left side of plenum chamber. (Схема №102)

MOTORS LOCATION

SENDING UNITS/SENSORS

ComponentLocation
Accelerator Pedal Position Sender 2At accelerator pedal. (Схема №32)
Air Quality SensorIn right plenum chamber. (Схема №37)
Brake Pressure Sensor 1Right rear of engine compartment. (Схема №36)
Camshaft Position (CMP) Sensor (2.0L)Front of cylinder head. (Схема №48)
Camshaft Position (CMP) Sensor 2 (3.2L) (2)Rear of cylinder head. (Схема №132)
Camshaft Position (CMP) Sensor (3.2L) (1)Rear of cylinder head. (Схема №132)
Central Flap Motor Position Sensor (6)On central flap actuator motor. (Схема №123)
Charge Air Pressure SensorIn charge air pipe. (Схема №44)
Defroster Flap Motor Position Sensor (9)On defroster flap motor. (Схема №123)
Engine Coolant Temperature (ECT) Sensor (2.0L)Right rear of engine. (Схема №54)
Engine Coolant Temperature (ECT) Sensor (3.2L) (25)Left side of cylinder head. (Схема №128)
Engine Speed (RPM) Sensor (2.0L)On engine block near transmission. (Схема №41)
Engine Speed (RPM) Sensor (3.2L) (26)Left side of engine. (Схема №128)
Evaporator Vent Temperature SensorRight front of center console. (Схема №39)
Footwell Vent Temperature Sensor (Left) (11)Left side of HVAC unit. (Схема №123)
Footwell Vent Temperature Sensor (Right) (12)Top right side of HVAC unit. (Схема №123)
Fresh Air Intake Duct Temperature Sensor (18)Right side of fresh air blower unit. (Схема №123)
Front Air Bag Crash Sensor (Driver's)Left front of engine compartment. (Схема №42)
Front Air Bag Crash Sensor (Front Passenger's)Right front of engine compartment. (Схема №43)
Front Level Control Module (Left)Left front wheelwell, on suspension link.
Front Level Control Module (Right)Left rear wheelwell, on suspension link.
Fuel Pressure SensorOn left side of engine, in fuel rail. (Схема №38)
Heated Oxygen Sensor (HO2S) (2.0L)In exhaust, at turbocharger exit. (Схема №46)
Heated Oxygen Sensor (HO2S) 2 (1)In exhaust, upstream of catalytic converter. (Схема №130)
Heated Oxygen Sensor (HO2S) (3.2L) (2)In exhaust, upstream of catalytic converter. (Схема №130)
High Pressure SensorIn engine compartment, on a/c high pressure line.
Instrument Panel Interior Temperature SensorIntegral to A/C control head.
Intake Air Temperature (IAT) SensorLeft side of engine. (Схема №50)
Intake Manifold Runner Position SensorOn cylinder head, in intake manifold. (Схема №45)
Knock Sensor (KS) 1 (2.0L)On left front of engine block, near head. (Схема №53)
Knock Sensor (KS) 1 (3.2L) (1)Right front of engine. (Схема №129)
Knock Sensor (KS) 2 (2.0L)On left rear of engine block, near head. (Схема №55)
Knock Sensor (KS) 2 (3.5L)Left side of cylinder head. (Схема №133)
Low Fuel Pressure SensorLeft rear of engine. (Схема №49)
Mass Air Flow (MAF) Sensor (2.0L)On engine intake air duct. (Схема №56)
Mass Air Flow (MAF) Sensor (3.2L) (13)On engine air intake duct. (Схема №128)
Outside Air Temperature SensorBehind left side of front bumper.
Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC)Under vehicle, in exhaust. (Схема №29)
Oxygen Sensor (O2S) HeaterIn exhaust at turbocharger exit. (Схема №109)
Oxygen Sensor (O2S) Heater 1 Behind Three Way Catalytic Converter (TWC)Under vehicle, in exhaust. (Схема №112)
Oxygen Sensor (O2S) (1)Downstream of catalytic converter. (Схема №131)
Oxygen Sensor (O2S) 2 (2)Downstream of catalytic converter. (Схема №131)
Rain/Light Recognition SensorOn interior rearview mirror. (Схема №47)
Recirculation Flap Motor Position SensorOn recirculation flap motor.
Seat Occupied Recognition Pressure SensorOn base of front passenger's seat. (Схема №51)
Seat Occupied Recognition Safety Belt Force SensorIn front passenger's seat belt latch. (Схема №52)
Seat Temperature Sensor (Left/Right)In respective front seat cushions.
Secondary Air Injection Sensor (11)Near throttle valve control module. (Схема №128)
Side Air Bag Crash Sensor (Driver's)In driver's door. (Схема №30)
Side Air Bag Crash Sensor (Front Passenger's)In front passenger's door. (Схема №31)
Side Air Bag Crash Sensor (Left Rear) (15)In left "C" pillar. (Схема №124)
Side Air Bag Crash Sensor (Right Rear) (12)In right "C" pillar. (Схема №124)
Steering Angle SensorBehind steering wheel. (Схема №58)
Steering Torque SensorIn power steering rack. (Схема №40)
Sunlight Photo SensorTop left center of dash. (Схема №28)
Throttle Drive Angle Sensor 1 (Electronic Power Control (EPC)) (2.0L)Under engine top cover. (Схема №34)
Throttle Drive Angle Sensor 1 (Electronic Power Control (EPC)) (3.2L) (11)On throttle body. (Схема №128)
Throttle Drive Angle Sensor 2 (Electronic Power Control (EPC)) (2.0L)Under engine top cover. (Схема №35)
Throttle Drive Angle Sensor 2 (Electronic Power Control (EPC)) (3.2L) (11)On throttle body. (Схема №128)
Throttle Position (TP) SensorOn accelerator pedal. (Схема №57)
Vent Temperature Sensor (Left/Right)In respective dash air vent.

SENDING UNITS & SENSORS LOCATION

SOLENOIDS & SOLENOID VALVES

ComponentLocation
A/C Compressor Regulator ValveRear of A/C compressor.
Camshaft Adjustment Valve 1 Exhaust (4)Rear of cylinder head. (Схема №132)
Camshaft Adjustment Valve 1 (2.0L)Top rear of right cylinder head. (Схема №81)
Camshaft Adjustment Valve 1 (3.2L) (3)Rear of cylinder head. (Схема №132)
Cylinder 1 Fuel InjectorRight side of engine, below intake manifold. (Схема №88)
Cylinder 2 Fuel InjectorRight side of engine, below intake manifold. (Схема №89)
Cylinder 3 Fuel InjectorRight side of engine, below intake manifold. (Схема №90)
Cylinder 4 Fuel InjectorRight side of engine, below intake manifold. (Схема №91)
Evaporative Emissions (EVAP) Canister Purge Regulator ValveLeft rear of engine. (Схема №95)
Fuel Pressure Regulator ValveRear of engine. (Схема №85)
Ignition Switch Key Lock SolenoidAt ignition switch, on steering column. (Схема №92)
Intake Manifold Tuning (IMT) Valve (3.2L)Under intake manifold.
Shift Lock SolenoidFront of selector lever base. (Схема №77)
Turbocharger Recirculating ValveTop front of engine. (Схема №82)
Wastegate Bypass Regulator ValveRight rear of engine compartment. (Схема №94)

SOLENOIDS & SOLENOID VALVES LOCATION

SWITCHES

ComponentLocation
Brake Fluid Level Warning SwitchIn brake fluid reservoir cap. (Схема №3)
Brake Light SwitchTop of brake pedal assembly. (Схема №22)
Driver's Safety Belt SwitchIn driver's seat belt latch. (Схема №20)
Engine Coolant Level (ECL) Warning SwitchOn coolant reservoir. (Схема №26)
Front Hood SwitchBase of engine compartment hood latch. (Схема №24)
Front Passenger's Safety Belt SwitchIn front passenger's seat belt latch. (Схема №21)
Parking Brake Warning Light SwitchAt base of parking brake lever assembly. (Схема №27)
Selector Lever Park Position Lock SwitchForward of gear selector assembly. (Схема №25)

SWITCHES LOCATION

MISCELLANEOUS

ComponentLocation
Air Bag Spiral Spring/Return Spring W/Slip RingBehind steering wheel. (Схема №23)
Alarm HornIn right front wheelwell. (Схема №59)
Amplifier (W/Bose)Right side of luggage compartment. (Схема №97)
Antenna AmplifierTop left side of cargo area lid. (Схема №99)
Battery Interrupt Igniter (5)On main fuse panel "D". (Схема №5)
Data Bus On Board Diagnostic InterfaceBehind center console storage compartment. (Схема №73)
Driver's Air Bag Unit (2)In steering wheel. (Схема №124)
Front Passenger's Air Bag Unit (6)Behind right side of dash. (Схема №124)
Head Curtain Airbag Igniter (Driver's)Left rear side of roof. (Схема №83)
Head Curtain Airbag Igniter (Front Passenger's)Right rear side of roof. (Схема №84)
Ignition Coil 1 With Power Output StageTop of cylinder head, above cylinder no. 1. (Схема №93)
Ignition Coil 2 With Power Output StageTop of cylinder head, above cylinder no. 2. (Схема №78)
Ignition Coil 3 With Power Output StageTop of cylinder head, above cylinder no. 3. (Схема №86)
Ignition Coil 4 With Power Output StageTop of cylinder head, above cylinder no. 4. (Схема №87)
Inside Microphone (W/Bose)Center front of roof. (Схема №101)
Navigation/TV TunerLeft side of luggage compartment.
Positive Crankcase Ventilation (PCV) Heating Element (10)Center rear of engine compartment. (Схема №128)
Rear Window Antenna 1Integral with rear window defogger. (Схема №98)
Safety Belt Tensioner Igniter 1 (Driver's)Base of left "B" pillar. (Схема №79)
Safety Belt Tensioner Igniter 1 (Front Passenger's)Base of right "B" pillar. (Схема №80)
Satellite RadioLeft side of luggage compartment.
Side Air Bag (Driver's) (16)Left side of driver's seat back. (Схема №124)
Side Air Bag (Front Passenger's) (10)Right side of front passenger's seat back. (Схема №124)
Side Air Bag (Left Rear Passenger's) (14)Left side of left rear passenger's seat back. (Схема №124)
Side Air Bag (Right Rear Passenger's) (11)Right side of right rear passenger's seat back. (Схема №124)
Side Curtain Air Bag (Left) (13)In left roof rail. (Схема №124)
Side Curtain Air Bag (Right) (9)In right roof rail. (Схема №124)
Telephone AmplifierLeft side of luggage compartment.
Telephone/Navigation System (GPS)/Auxiliary Heater AntennaCenter rear of roof. (Схема №100)
Washer Nozzle Heater (Left)In left side of plenum chamber. (Схема №110)
Washer Nozzle Heater (Right)In right side of plenum chamber. (Схема №111)
Windshield Antenna Suppression FilterIn rear lid. (Схема №19)

MISCELLANEOUS LOCATION

GROUNDS

ComponentLocation
G12Left side of engine compartment. (Схема №6)
G43 (A)Behind right kick panel. (Схема №11)
G44 (A)Behind left kick panel. (Схема №12)
G51At right side of luggage compartment. (Схема №13)
G53Right side of rear lid. (Схема №14)
G61On left "C" pillar. (Схема №15)
G62On right "C" pillar. (Схема №16)
G607In left plenum chamber. (Схема №7)
G610Under front of center console. (Схема №17)
G638 (B)Behind right kick panel. (Схема №11)
G639 (B)Behind left kick panel. (Схема №12)
G655 (C)On left headlight. (Схема №10)
G656On right headlight. (Схема №8)
G662On left "C" pillar. (Схема №18)
G671 (A)On left front long member. (Схема №10)
G673On left front long member. (Схема №9)
G674 (B)On left front long member. (Схема №10)

GROUNDS LOCATION