Audi A3 8P facelift 2 (2008-2013) (on left headlight) Wiring diagrams

ALL WHEEL DRIVE CONTROL MODULE (LEFT FRONT OF REAR AXLE DIFFERENTIAL) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL CRUISE CONTROL IND INSTRUMENT CLUSTER CONTROL MODULE DIRECT SHIFT GEARBOX (DSG) MECHATRONIC (ON TRANSMISSION HOUSING) ENGINE CONTROL MODULE (ECM) (REAR OF ENGINE COMPT) FUSE 22 FUSE 24 FUSE 6 FUSE PANEL B (INTEGRATED IN ENGINE COMPARTMENT E-BOX) GRN WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ MOTRONIC ENGINE CONTROL MODULE (ECM) POWER SUPPLY RELAY ENERGIZED HOT W/ POWER SUPPLY RELAY (TERMINAL 30,B+) ENERGIZED NCA WIRE ORG/BLK WIRE ORG/BLU WIRE ORG/BRN WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE (UNDER STEERING COLUMN) SWITCH (IF EQUIPPED) THROTTLE VALVE CONTROL MODULE (ON THROTTLE BODY) TRANSMISSION INPUT SPEED (RPM) SENSOR TRANSMISSION OUTPUT SPEED (RPM) SENSOR TRANSMISSION OUTPUT SPEED (RPM) SENSOR 2 WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL/GRN WIRE

3 DOOR 5 DOOR ALARM HORN (IF EQUIPPED) (IN RIGHT FRONT WHEELWELL) ANTENNA AMPLIFIER 2 BLK WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CENTRAL LOCKING, ANTI-THEFT ALARM SYSTEM ANTENNA COMPUTER DATA LINES SYSTEM FRONT HOOD SWITCH (BASE OF ENGINE COMPT HOOD LATCH) FUSE 17 FUSE PANEL C GRN/RED WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT REAR CENTRAL LOCKING LOCK UNIT NCA WIRE ORG/BRN WIRE ORG/GRN WIRE PARKING BRAKE CONTACT SWITCH PASSENGER COMPARTMENT MONITORING, ALARM SYSTEM OFF SWITCHES REAR LID CENTRAL LOCKING SYSTEM MOTOR REAR WINDOW GLASS BREAKAGE SENSOR (W/ ANTI-THEFT ALARM) REAR/CENTER CENTRAL LOCKING SWITCH RED GRN/ WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE TRUNK LID ALARM SWITCH TRUNK LID ALARM SWITCH, REAR LID CENTRAL LOCKING SYSTEM MOTOR VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (BELOW LEFT SIDE OF DASH) VIO/BLU WIRE VIO/WHT WIRE W/O NAVIGATION W/ NAVIGATION WHT WIRE WHT/YEL WIRE YEL/BRN WIRE YEL/RED WIRE

AFTER-RUN COOLANT PUMP (LEFT SIDE OF ENGINE, BELOW OIL FILTER) BLK/RED WIRE BLK/YEL WIRE BLU WIRE BRN (OR BLK) WIRE BRN WIRE CBEA CCTA, CBFA CBFA CBFA CCTA CCTA COOLANT CIRCULATION PUMP RELAY (CBFA) (ON FUSE PANEL "B") COOLANT CIRCULATION PUMP RELAY (CCTA) (ON FUSE PANEL "B") COOLANT FAN COOLANT FAN 2 (FRONT OF ENGINE COMPT, BEHIND RADIATOR) COOLANT FAN CONTROL (FC) CONTROL MODULE (FRONT OF ENGINE COMPARTMENT) ENGINE CONTROL MODULE (REAR OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE (ECT) SENSOR (ON RADIATOR) (ON LOWER RADIATOR HOSE) ENGINE COOLANT TEMPERATURE SENSOR (2.0L TURBO: RIGHT EXCEPT CBFA FUSE 23 FUSE 24 FUSE PANEL B (INTEGRATED IN ENGINE COMPT E-BOX) HOT AT ALL TIMES FUSE PANEL A FUSE 3 HOT W/ MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY ENERGIZED NCA WIRE REAR OF ENGINE) (2.0L TURBO DIESEL: LEFT REAR OF ENGINE) RED/BLU WIRE RED/WHT WIRE VIO/RED WIRE YEL WIRE YEL/BLU WIRE YEL/VIO WIRE

AFTER-RUN COOLANT PUMP (LEFT SIDE OF ENGINE, BELOW OIL FILTER) BLK/RED WIRE BLK/YEL WIRE BLU WIRE BRN (OR BLK) WIRE BRN WIRE CBEA CCTA, CBFA CBFA CCTA COOLANT CIRCULATION PUMP RELAY (CBFA) (ON FUSE PANEL "B") COOLANT CIRCULATION PUMP RELAY (CCTA) (ON FUSE PANEL "B") COOLANT FAN COOLANT FAN 2 (FRONT OF ENGINE COMPT, BEHIND RADIATOR) COOLANT FAN CONTROL (FC) CONTROL MODULE (FRONT OF ENGINE COMPARTMENT) ENGINE CONTROL MODULE (REAR OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR (2.0L TURBO: RIGHT ENGINE COOLANT TEMPERATURE SENSOR (ON RADIATOR) (ON LOWER RADIATOR HOSE) EXCEPT CBFA FUSE 23 FUSE PANEL B (INTEGRATED IN FUSE ENGINE COMPT E-BOX) HOT AT ALL TIMES FUSE PANEL A FUSE 3 HOT W/ MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY ENERGIZED NCA WIRE REAR OF ENGINE) (2.0L TURBO DIESEL: LEFT REAR OF ENGINE) RED/BLU WIRE RED/WHT WIRE VIO/RED WIRE YEL WIRE YEL/BLU WIRE YEL/VIO WIRE

3-DOOR 5-DOOR BACKUP LAMPS CIRCUIT BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BRAKE TAIL BACKUP LAMP LAMP LAMP BRAKE/ TAIL TURN SIGNAL LAMP LAMP BRN WIRE BRN/RED WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM EMERGENCY FLASHER SWITCH FRONT PARKING TURN LAMP SIGNAL LAMP FRONT TURN SIGNAL LAMP PARKING LAMP FUSE FUSE 6 FUSE PANEL B (INTEGRATED IN ENGINE COMPT E-BOX) FUSE PANEL C GRN/RED WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL MODULE LEFT HEADLIGHT ASSEMBLY LEFT TAILLAMP ASSEMBLY 1 LEFT TAILLAMP ASSEMBLY 2 REAR TURN LEFT TURN SIGNAL IND LAMP LICENSE PLATE LIGHT LIGHT SWITCH NCA WIRE ORG/ WIRE ORG/BRN WIRE ORG/GRN WIRE PARKING BRAKE IND LAMP PARKING LIGHT IND LAMP RED WIRE RED/WHT WIRE RIGHT TURN SIGNAL IND LAMP SIGNAL LAMP STEERING COLUMN ELECTRONIC SYSTEMS CONTROL MODULE (UNDER STEERING COLUMN) SYSTEM CONTROL MODULE (BELOW LEFT SIDE OF DASH) TURN SIGNAL SWITCH VEHICLE ELECTRICAL VIO WIRE W/ DRL, AUTOMATIC HEADLIGHT, TAILLIGHT CONTROL W/O BI-XENON HEADLIGHTS W/ BI-XENON HEADLIGHTS W/ CORNERING HEADLIGHTS WHT WIRE WHT/BLK WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE

AMPLIFIER AMPLIFIER SHIELD AMPLIFIER/WOOFER SHIELD AMPLIFIER/WOOFER, SATELLITE RADIO (IF EQUIPPED) BLK WIRE BRN WIRE COOLANT FAN CONTROL (FC) CONTROL MODULE DIRECT SHIFT GEARBOX (DSG) MECHATRONIC EXTERNAL AUDIO SOURCE CONNECTION SHIELD IGNITION COIL 1 TO 4 W/ POWER OUTPUT STAGE (EXCEPT CBEA) IPOD BASEPLATE, CD CHANGER, USB CONNECTION BASEPLATE NCA WIRE RADIO SHIELD (W/ EXTERNAL AUDIO SOURCE) SECONDARY AIR INJECTION (AIR) PUMP MOTOR (CBFA) TELEPHONE AMPLIFIER (W/O THROTTLE VALVE CONTROL MODULE (CBEA)

BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE FUEL LEVEL SENSOR, TRANSFER FUEL PUMP (FP) FUSE 27 FUSE PANEL B (INTEGRATED IN ENGINE COMPT E-BOX) GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGNITION COILS W/ POWER OUTPUT STAGE (TOP OF CYLINDER HEAD, ABOVE CYLINDERS) NCA WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE SECONDARY AIR INJECTION (AIR) PUMP RELAY TO SPARK PLUG VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/GRY WIRE

BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/VIO WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/VIO WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE CAMSHAFT ADJUSTMENT VALVE 1 (TOP REAR OF RIGHT CYLINDER HEAD) COMPUTER DATA LINES SYSTEM ENGINE COMPT) ENGINE CONTROL MODULE (REAR OF EVAPORATIVE EMISSION (EVAP) CANISTER PURGE REGULATOR VALVE (LEFT REAR OF ENGINE) FUEL PRESSURE REGULATOR VALVE (REAR OF ENGINE) FUSE 10 FUSE PANEL B (INTEGRATED IN ENGINE COMPT E-BOX) GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES INTAKE MANIFOLD RUNNER CONTROL (IMRC) VALVE NCA WIRE ORG/BLK WIRE ORG/BRN WIRE RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE SECONDARY AIR INJECTION (AIR) PUMP MOTOR SECONDARY AIR INJECTION (AIR) SOLENOID VALVE TURBOCHARGER RECIRCULATING VALVE (TOP FRONT OF ENGINE) VIO WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/RED WIRE VIO/WHT WIRE VIO/YEL WIRE WASTEGATE BYPASS REGULATOR VALVE (RIGHT REAR OF ENGINE COMPT) WHT WIRE WHT/BLU WIRE WHT/BRN WIRE YEL/BLU WIRE YEL/GRN WIRE

AFTER-RUN COOLANT PUMP (LEFT SIDE OF ENGINE, BELOW OIL FILTER) BLK/GRY WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE FUEL LEVEL SENSOR, TRANSFER FUEL PUMP (FP) GRN/YEL WIRE GRY/BLK WIRE IGNITION COILS W/ POWER OUTPUT STAGE (TOP OF CYLINDER HEAD, ABOVE CYLINDER) NCA WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE TO SPARK PLUG VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/RED WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/GRY WIRE

ABS CONTROL MODULE (AT RIGHT REAR OF ENGINE COMPT) BEHIND THREE WAY CATALYTIC CONVERTER (TWC), BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE ENGINE SPEED (RPM) SENSOR (LEFT REAR OF ENGINE) EXHAUST FLAP UNIT EXHAUST PRESSURE SENSOR 1 (ON EGR HOUSING) EXHAUST PRESSURE SENSOR 2 FUEL PRESSURE SENSOR (ON LEFT SIDE OF ENGINE, IN FUEL RAIL) GRN WIRE GRY/BLK WIRE GRY/RED WIRE GRY/YEL WIRE NCA WIRE POWER SUPPLY RELAY (TERMINAL 50) (ON 5-POSITION FUSE/RELAY CARRIER) PREHEATING COOLANT, HIGH HEAT OUTPUT RELAY PREHEATING COOLANT, LOW HEAT OUTPUT RELAY RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE THROTTLE VALVE CONTROL MODULE (ON THROTTLE BODY) TRANSMISSIONS SYSTEM VIO/BLK WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE W/ HILL HOLD ASSIST W/O HILL HOLD ASSIST WHT WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE